CN103716912B

CN103716912B - A kind of method for discharging wireless heterogeneous networks connection, apparatus and system

Info

Publication number: CN103716912B
Application number: CN201210379875.8A
Authority: CN
Inventors: 陈东; 张英; 全海洋
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2012-10-09
Filing date: 2012-10-09
Publication date: 2017-10-20
Anticipated expiration: 2032-10-09
Also published as: CN103716912A

Abstract

The invention discloses a kind of method of release RRC connections, apparatus and system, completed for solving terminal in the prior art after data transmission, network side needs to send substantial amounts of RRC signaling to discharge the RRC connections of each terminal, the problem of causing larger space interface signaling expense for each terminal.The method of the embodiment of the present invention includes：Terminal is sent for representing the instruction that all data are sent after it is determined that the MAC PDU sent before to network side are last MACPDU to network side；And after the ACK message of network side feedback is received, the RRC connections of itself are discharged, and enter idle condition.The embodiment of the present invention is after terminal has sent all data, by to network side send be used for represent the instruction that all data are sent, make network side need not to terminal send space interface signaling, can also realize release terminal RRC connections, so as to optimize signalling, Internet resources are saved.

Description

A kind of method for discharging wireless heterogeneous networks connection, apparatus and system

Technical field

It is more particularly to a kind of to discharge the method that radio resource control RRC is connected the present invention relates to wireless communication technology field, And for discharging the apparatus and system of RRC connections.

Background technology

Machine and machine（Machine to Machine, M2M）Communication refers to the communication between machine and machine, with tradition Person to person（Human to Human, H2H）Communication is different, and M2M communication can be automatically performed the collection of data, processing with passing It is defeated, without manual intervention.For example, water meter is counted, ammeter statistics, gas meter statistics, hydrologic monitoring etc., these user terminals or Person belongs to same user, for example, belonging to the ammeter of same Utilities Electric Co., belongs to the water meter etc. of same Running-water Company, Or be distributed in a region than comparatively dense, for example, hydrologic monitoring.

The communication of M2M business can be using identical RRM and the data transmission of being communicated with traditional H2H Mode.One outstanding feature of M2M communication is that user terminal is relatively more, machine type communication（Machine Type Communication, MTC）The number of terminal is much larger than H2H user terminal, typically the tens of H2H terminals times.Its is another It is controllable the time carried out data transmission between MTC terminal and network side that individual feature, which is, such as water meter, ammeter, gas meter MTC terminal can be constrained on the period of some concentration to network side reported data.

For wireless network side, such as in Long Term Evolution（Long Term Evolution, LTE）In system, terminal has Two states, i.e. RRC_connected（Connection）State and RRC-idle（It is idle）State；And for example in UMTS （Universal Mobile Telecommunications System, UMTS）In, terminal has five kinds of states, i.e. cell- Dch states, cell_fach states, cell_pch/ura_pch states and idle（It is idle）State, wherein, cell-dch shapes State, cell_fach, cell_pch/ura_pch are connection status.Either in LTE system or UMTS, if terminal is current In idle condition, and the terminal needs to send data, then the terminal must set up RRC connections between elder generation and network side, at this When terminal is in connection status, data can be sent to the network side；Also, if terminal is currently at connection status, and should Terminal has completed the transmission of data, then network side can initiate RRC connections when detecting the terminal no data transmission for a long time Release process, i.e., send RRC connection release message to terminal, and terminal after receiving that message, returns to the free time State.

In LTE system, the RRC Connection Release processes between terminal and base station are shown in Figure 1, set up in terminal and base station After RRC connections, can configuration transmitted over resources data, wherein, the data are in Media access contorl（Medium Access Control, MAC）Layer is referred to as MAC packet data unit（Packet Data Unit, PDU）.MAC PDU lattice Formula is shown in Figure 2, and a MAC PDU is by MAC header（header）With MAC payloads（payload）Composition.Wherein, MAC Payload parts are further again including MAC Control Element（Control Element, CE）, Medium Access Control (MAC) Service Data Unit （Service Data Unit, SDU）And filling（padding）.Further, again comprising several subheaders in MAC header（sub- header）, MAC CE or the MAC SDU or padding of each subheader correspondence below, and order is identical.In MAC subheaders It is MAC CE, MAC SDU or padding to identify the MAC subheaders corresponding using " R/R/E/LCID/F/L " etc..Wherein, R is represented It is reserved, 1 bit of its value（bit）Data are represented；E represents whether also have more domains, its value 1bit tables of data in MAC header Show；F represents whether corresponding MAC PDU or MAC CE are more than 128 bytes, and its value is represented with 1bit data；L represents corresponding MAC SDU or MAC CE length；LCID（Logical Channel Identity）Logical channel identifier is represented, its value is used 4bit data are represented.For up MAC PDU, the concrete meaning of LCID values is as shown in table 1：

Table 1

From table 1 it follows that value bigger than 11001 in LCID values is all used for representing the MAC CE of particular meaning, at present 01011 ~ 11000 is reserved in LCID values.

In LTE system, the upstream data sent for terminal, network side is after the upstream data is properly received, MAC layer Response can be fed back（Acknowledgement, ACK）, wireless spread-spectrum technology（Radio Link Control, RLC）Layer is possible to Feed back the corresponding ACK of RLC；Terminal is received after the ACK of network side feedback, then confirms that the upstream data is correctly received, no Then, terminal will retransmit the upstream data.

In UMTS system, RRC Connection Releases process between terminal and base station is as shown in figure 3, network in UMTS system Side entity includes radio network controller（Radio Network Control, RNC）And base station（Node B）.Wherein, RNC master It is responsible for the context and RRM of terminal, it is the terminal of RRC signaling, and is responsible for parsing RRC signaling；Base station master It is responsible for scheduling resource.Interface between RNC and base station is referred to as Iub interface, can be entered by Iub interface between base station and RNC The transmission of row signaling.The data that terminal is sent are received by base station, are then forwarded to RNC by base station again.

After terminal sets up RRC connections, data are sent in the resource of configuration, the data are referred to as MAC PDU in MAC layer. In HSPA+（High Speed Packet Access, high-speed packet access）After introducing, MAC PDU form is referring to Fig. 4 institutes Show, in MAC-i hdr（MAC-i header, MAC-i heads）In by some groups of logical channel identifiers（Logical Channel Identity, LCH-ID）（4bit）, L（11bit）And F（1bit）Composition, each group of LCH-ID（4bit）、L（11bit）With And F（1bit）A MAC-is data cell below is corresponded to respectively.Wherein, the length of L corresponding datas unit, F represents follow-up It is data cell or MAC header.UMTS FDDs（Frequency Division Duplexing）LCH-ID in system Concrete meaning such as table 2：

Table 2

UMTS low bit piece rates（Low Code Rate, LCR）Time division duplex（Time Division Duplexing, TDD）LCH-ID concrete meaning is as shown in table 3 in system：

LCH-ID domains	Definition
		0000	Logic channel 1
0001	Logic channel 2
		...	...
1101	Logic channel 14
		1110	CCCH identifiers (SRB0)
1111	It is reserved

Table 3

It can also be seen that being also possible to carry schedule information in MAC PDU from Fig. 4（Scheduling Information, SI）, the SI is used to notify the buffer status, power rating, channel status of the current terminal in base station, dispatched with assistant base station.For For UMTS, in HSPA, terminal when there is data transmission, it is necessary to apply for resource to base station, wherein, what the resource of application was used It is SI.SI can both be sent by physical channel E-RUCCH, can also be carried and be sent in MAC PDU.SI particular content is such as Shown in table 4：

Table 4

Wherein, TEBS（Total E-DCH Buffer Staus）For total cache information, HLID（Highest priority Logical Channel ID）For highest priority logical channel ID, HLBS（Highest priority Logical channel Buffer Status）For highest priority logical channel buffer status, SNPL（Serving and Neighbor Cell Pathloss）For adjacent area and local area path loss information, UPH（Terminal Power Headroom）For terminal power headrooms.

In UMTS HSPA systems, the upstream data sent for terminal, network side is being properly received the upper of terminal transmission After row data, MAC layer meeting feeding back ACK, rlc layer is possible to the corresponding ACK of feedback RLC；Terminal receives the ACK of network side feedback Afterwards, determine that upstream data is correctly received, otherwise, terminal will retransmit the data.

Base station is received after MAC PDU, carries out the field in preliminary treatment, parsing MAC header, including LCH-ID（4bit）And F （1bit）If wherein including SI, base station is scheduled to SI processing, and using SI.For the remaining numbers of MAC PDU , can be by the FP of Iub interface user plane according to part（Frame Protocol, Frame Protocol）Frame is transmitted to RNC processing.

In summary, in LTE system and UMTS, the terminal in connection status is after data transmission is completed, network side It is required for sending RRC connection release message for each terminal.In M2M communication, often occur within a short period of time, it is a large amount of whole End, which is concentrated, sends data, after those terminals complete data transmission, and network side needs to send substantial amounts of RRC letters for each terminal Make to discharge the RRC connections of each terminal, so as to cause larger space interface signaling expense, be easily caused signaling congestion.

The content of the invention

The embodiments of the invention provide a kind of method of release RRC connections, apparatus and system, for solving in the prior art Terminal is completed after data transmission, and network side needs to send substantial amounts of RRC signaling to discharge the RRC of each terminal for each terminal Connection, so as to cause larger space interface signaling expense, the problem of being easily caused signaling congestion.

The embodiments of the invention provide a kind of method of release RRC connections, including：

Terminal is it is determined that when the preceding Media access contorl Packet Data Unit MAC PDU sent to network side are last After MAC PDU, sent to the network side for representing the instruction that all data are sent, to indicate that the network side discharges It is connected with the RRC of this terminal；

The terminal discharges the RRC connections of itself after the correct response ACK message of the network side feedback is received, And enter idle condition；Wherein, the ACK message is that the network side is being properly received last MAC of this terminal transmission Sent after PDU.

The embodiments of the invention provide a kind of method of release RRC connections, this method includes：

Network side is after last MAC PDU of terminal transmission is properly received, to the terminal feeding back ACK message；

The network side is receiving that the terminal sends for the instruction that notifies all data of the network side to be sent Afterwards, release is connected with the RRC of the terminal, and determines that the terminal enters idle condition.

The embodiments of the invention provide a kind of terminal, the terminal includes：

Sending module, for after it is determined that the MAC PDU sent before to network side are last MACPDU, to described Network side is sent for representing the instruction that all data are sent, to indicate that the network side release and the RRC of this terminal connect Connect；

Release module, for after the ACK message of the network side feedback is received, discharging the RRC connections of itself, going forward side by side Enter idle condition；Wherein, to be the network side be properly received last that the sending module sends to the ACK message Sent after MAC PDU.

The embodiments of the invention provide a kind of network side equipment, applied to LTE system, the network side equipment includes：

Feedback module, for after last MAC PDU of terminal transmission is properly received, to the terminal feeding back ACK Message；

Connection Release module, for notifying what all data of network side were sent in being used for of receiving that the terminal sends After instruction, release is connected with the RRC of the terminal, and determines that the terminal enters idle condition.

The embodiments of the invention provide a kind of network side equipment, applied to UMTS system, the network side equipment includes：

Base station, for after last MAC PDU of terminal transmission is properly received, to the terminal feeding back ACK message； And notified in being used for of receiving that the terminal sends after instruction that all data of the network side equipment are sent, indicated described It is sent to the RNC；

RNC, for after the instruction is received, discharging and being connected with the RRC of the terminal, and determines that the terminal enters Idle condition.

The embodiments of the invention provide a kind of communication system, the communication system includes：

Terminal, for after it is determined that the MAC PDU sent before to network side are last MAC PDU, to the net Network side is sent for representing the instruction that all data are sent, to indicate that the network side release is connected with the RRC of this terminal； And after the ACK message of the network side feedback is received, the RRC connections of itself are discharged, and enter idle condition；Wherein, institute It is that the network side is sent after last MAC PDU of this terminal transmission is properly received to state ACK message.

Network side equipment, for after last MAC PDU of terminal transmission is properly received, being fed back to the terminal ACK message；And notified in being used for of receiving that the terminal sends after instruction that all data of the network side are sent, release with The RRC connections of the terminal, and determine that the terminal enters idle condition.

Terminal of the embodiment of the present invention after it is determined that the MAC PDU sent before to network side are last MAC PDU, to The network side is sent for representing the instruction that all data are sent, to indicate that network side release and the RRC of the terminal connect Connect；And after the ACK message of network side feedback is received, discharge the RRC connections of itself.The embodiment of the present invention is sent in terminal After complete all data, by network side send be used for represent the instruction that all data are sent, make network side need not Space interface signaling is sent to terminal, the RRC connections of release terminal can also be realized, so as to optimize signalling, network is saved Resource.

Brief description of the drawings

Fig. 1 is the release schematic flow sheet of RRC connections between terminal and base station in existing LTE system；

The form schematic diagram that Fig. 2 is MAC PDU in existing LTE system；

Fig. 3 is the release schematic flow sheet of RRC connections between terminal and base station in existing UMTS system；

The form schematic diagram that Fig. 4 is MAC PDU in existing UMTS system；

Fig. 5 is the method flow schematic diagram that terminal of the embodiment of the present invention discharges RRC connections；

The specific form schematic diagram that Fig. 6 is special MAC CE in LTE system of the embodiment of the present invention；

Fig. 7 is the specific form schematic diagram of MAC header in UMTS system of the embodiment of the present invention；

Fig. 8 is the method flow schematic diagram that network side of the embodiment of the present invention discharges RRC connections；

Fig. 9 is a kind of structural representation of terminal of the embodiment of the present invention；

Figure 10 be LTE system of the embodiment of the present invention in a kind of network side equipment structural representation；

Figure 11 be UMTS system of the embodiment of the present invention in a kind of network side equipment structural representation；

Figure 12 is a kind of structural representation of communication system of the embodiment of the present invention；

Figure 13 is the method flow diagram of the first release RRC connection in the embodiment of the present invention；

Figure 14 is the method flow diagram of second of release RRC connection in the embodiment of the present invention；

Figure 15 is the method flow diagram of the third release RRC connection in the embodiment of the present invention；

Figure 16 is the method flow diagram of the 4th kind of release RRC connection in the embodiment of the present invention；

Figure 17 is the method flow diagram of the 5th kind of release RRC connection in the embodiment of the present invention；

Figure 18 is the method flow diagram of the 6th kind of release RRC connection in the embodiment of the present invention.

Embodiment

The embodiment of the present invention after terminal has sent all data, by network side send be used for represent all data The instruction being sent, makes network side to send space interface signaling to terminal, can also realize the RRC connections of release terminal, So as to optimize signalling, Internet resources are saved.

The embodiment of the present invention is described in further detail with reference to Figure of description.

It is shown in Figure 5, it is a kind of method of release RRC connections provided in an embodiment of the present invention, this method is applied to eventually Side, comprises the following steps：

Step 51, terminal are after it is determined that the MAC PDU sent before to network side are last MACPDU, to network side Send for representing the instruction that all data are sent, to indicate that network side release is connected with the RRC of this terminal；

Step 52, terminal discharge the RRC connections of itself, and enter idle after the ACK message of network side feedback is received State；Wherein, ACK message is that network side is sent after last MAC PDU of this terminal transmission is properly received.

It is preferred that, the ACK message of network side feedback can be the corresponding ACK message of MAC layer, or rlc layer correspondence ACK message.

If it should be noted that LTE system, then the network side of the embodiment of the present invention is base station（Such as eNodeB）；If UMTS system, then the network side of the embodiment of the present invention include base station and RNC.

Further, terminal can determine that currently transmitted MAC PDU are last MAC in the following manner in step 51 PDU：

If after the currently transmitted MAC PDU of mode 1, establishment, data cached buffer is used in the terminal（buffer） For sky, the terminal determines that currently transmitted MAC PDU are last MAC PDU；

Mode 2, high-rise indicate receiving inside it（Such as application layer）Afterwards, determine that currently transmitted MAC PDU are Last MAC PDU, wherein, the high level is indicated for notifying the currently transmitted MAC PDU of terminal to be last MAC PDU。

In force, terminal is sent for representing that all data are sent according in the following manner to network side in step 51 Instruction：

Mode A, terminal are carried in last the MAC PDU sent to network side for representing that all data have been sent Complete instruction.

If specifically, LTE system, mode A further comprises in the following manner：

Mode A1, terminal use the special MAC CE carried in last MAC PDU to represent the instruction, wherein, it is special Being included in MAC CE is used to represent the identification information that all data are sent.

As a kind of implementation, the specific form of the special MAC CE can be found in shown in Fig. 6, wherein, C1 represents all Data are sent, and R is reserved.

It is preferred that, terminal can be used to be reserved and untapped any LCID values in the MAC header of last MAC PDU （Such as 01011 ~ 11000）Represent to carry the MAC CE in last MAC PDU.

For example, terminal represents that last MAC PDU is carried for table using reserved and untapped LCID values 01011 Show the special MAC CE that all data are sent, accordingly, network side receive end side transmission MAC PDU after, if Included in the MAC header of the MAC PDU 01011 LCID values, it is determined that carry the special MAC CE in the MAC PDU being somebody's turn to do, and When including C1 in the corresponding special MAC CE of the LCID values, determine that all data of terminal are sent, and fed back to the terminal ACK message.

Accordingly, in step 52, terminal discharges the RRC connections of itself after the ACK message of network side feedback is received, And enter idle condition.

Mode A2, terminal are represented only with reserved in last MAC PDU MAC header and untapped any LCID values Last MAC PDU is carried for representing the instruction that all data are sent.

For example, terminal represents that last MAC PDU is carried for table using reserved and untapped LCID values 01011 Show the instruction that all data are sent, accordingly, network side is after the MAC PDU of end side transmission are received, if the MAC Included in PDU MAC header 01011 LCID values, it is determined that all data of terminal are sent, and to the terminal feeding back ACK Message.

If UMTS system, mode A further comprises in the following manner：

Mode A3, terminal represent that this refers to using reserved in last MAC PDU MAC header and untapped LCH-ID values Show；

As a kind of implementation, the specific form of the MAC header can be found in shown in Fig. 7, wherein, in MAC header reserve and not The LCH-ID values used are 1111.

Accordingly, network side is after last MAC PDU of terminal transmission is received, however, it is determined that this last Some MAC header includes 1111 LCH-ID values in MAC PDU, it is determined that all data of terminal are sent, and to the terminal Feeding back ACK message.

Mode A4, terminal use schedule information carried in last MAC PDU and that particular value is set to by terminal SI represents the instruction；

As a kind of implementation, for representing that the SI of the instruction can be arranged to：TEBS domains are set to 0, and HLBS domains It is set to the fixed value of non-zero；

Accordingly, network side is after last MAC PDU of terminal transmission is received, however, it is determined that this last The SI carried in MAC PDU TEBS domains are 0, and HLBS domains are the fixed value of non-zero, it is determined that all data of terminal are sent Finish, and to the terminal feeding back ACK message.

Mode B, UMTS system is only applied to, last MAC PDU is being sent to network side, and it is anti-to receive the network side After the ACK message of feedback, terminal sends physical layer signaling to the network side, wherein, carried in the physical layer signaling for representing The instruction that all data are sent.

It is preferred that, the physical layer signaling can be special E-RUCCH（Enhanced dedicated channel- Random access Uplink Control Channel, enhancement type special channel-Stochastic accessing ascending control channel）, its In, the SI carried in the special E-RUCCH is arranged to particular value, for identifying the instruction；

Specifically, can be arranged to for the SI for identifying the instruction：TEBS domains are set to 0, and HLBS domains are set to non-zero Fixed value.

Accordingly, terminal discharges the RRC connections of itself and included in step 52：

Terminal after being sent to network side and carrying physical layer signaling for representing the instruction that all data are sent, Discharge the RRC connections of itself.

In force, it is preferred that send last MAC PDU to network side in terminal and receive network side feedback After ACK message, or after terminal sends physical layer signaling to network side, the method for the present embodiment is further comprising the steps of：

Terminal starts the timer of configuration；

If not sending any data in the timing range of the timer, terminal discharges itself in the timer expiry RRC connections, and stop the timer.

Further, if having sent data in the timing range of the timer or have received data, terminal stops the timing Device.

Accordingly, network side receive terminal transmission be used for notify after instruction that all data of the network side are sent, And before network side release is connected with the RRC of the terminal,

The network side starts the timer of configuration；

If not receiving any data sent from the terminal in the timing range of the timer, network side is in the timing When device is overtime, release is connected with the RRC of the terminal, and stops the timer；

Further, if receiving the data sent from the terminal in the timing range of the timer, network side stops should Timer.

It is preferred that, the timer of the embodiment of the present invention can be configured by network side, and the timing can also be provided in the protocol Device.

Further, if the timer is configured by network side, network side can pass through System information block（System Information Block, SIB）The timer for notifying the terminal to configure, can also notify the terminal to configure by RRC signaling Timer.

It is shown in Figure 8, it is a kind of method of release RRC connections provided in an embodiment of the present invention, this method is applied to net Network side, comprises the following steps：

Step 81, network side disappear after last MAC PDU of terminal transmission is properly received to the terminal feeding back ACK Breath；

It is preferred that, the ACK message can be the corresponding ACK message of MAC layer, or the corresponding ACK message of rlc layer.

Step 82, network side receive terminal transmission for the instruction that notifies all data of the network side to be sent Afterwards, release is connected with the RRC of the terminal, and determines that the terminal enters idle condition.

In force, terminal send include for the mode of the instruction that notifies all data of the network side to be sent it is above-mentioned Mode A and mode B, wherein, mode A and mode the B form that implements refer to foregoing description, and here is omitted.

If in UMTS system, step 82, network side release is connected with the RRC of the terminal including following three kinds of situations：

The first situation：Terminal employing mode A3 is sent for representing the instruction that all data are sent, then network side Release is connected with the RRC of the terminal to be specifically included：

The MAC header for carrying the instruction by current FP frames is sent to RNC by base station after the instruction is received；And

RNC is after the instruction is got, and release is connected with the RRC of the terminal.

Second of situation：Terminal employing mode A4 is sent for representing the instruction that all data are sent, then network side Release is connected with the RRC of the terminal to be specifically included：

Base station is it is determined that the SI carried in last the MAC PDU received represents the instruction（I.e. base station determines the SI It is arranged to particular value）When, pass through remaining field signals RNC instructions in current FP frames；And

The third situation：Terminal employing mode B is sent for representing the instruction that all data are sent, then network side is released Put to be connected with the RRC of the terminal and specifically include：

Base station sends the instruction after the instruction carried in receiving physical signaling to RNC；And

RNC is after the instruction is received, and release is connected with the RRC of the terminal.

In force, base station sends what is be sent for representing all data of terminal by lub interface signalings to RNC Indicate.

It is preferred that, network side receive terminal transmission be used to represent the instruction that all data are sent after, and at this Before network side release is connected with the RRC of the terminal, the method for the present embodiment is further comprising the steps of：

Network side starts the timer of configuration；

Wherein, if the timer is configured by network side, network side can notify what the terminal was configured by System information block Timer, the timer that the terminal can also be notified to configure by RRC signaling.

Further, if UMTS system, the timer that network side starts configuration is specifically included：

Base station receive terminal transmission be used for represent the instruction that all data are sent after, notify RNC start configuration Timer；

If RNC is not detected by the data of terminal transmission in the timing range of the timer, the RNC is in the timer When overtime, release is connected with the RRC of the terminal, and stops the timer；

Further, if RNC detects the data of terminal transmission in the timing range of the timer, RNC stops should Timer.

Based on same inventive concept, a kind of terminal is additionally provided in the embodiment of the present invention, because the terminal solves problem Principle is similar with a kind of methods being connected of release RRC shown in Fig. 5, therefore the implementation of the terminal may refer to the implementation of method, Part is repeated to repeat no more.

It is shown in Figure 9, terminal provided in an embodiment of the present invention, including：

Sending module 91, for after it is determined that the MAC PDU sent before to network side are last MACPDU, to net Network side is sent for representing the instruction that all data are sent, to indicate that network side release is connected with the RRC of this terminal；

Release module 92, for after the ACK message of network side feedback is received, discharging the RRC connections of itself, and enter Idle condition；Wherein, ACK message is that network side is sent after last MAC PDU of the transmission of sending module 91 is properly received 's.

Further, sending module 91 is additionally operable to：

If it is sky to be used for data cached buffer after currently transmitted MAC PDU are set up, in this terminal, it is determined that currently The MAC PDU of transmission are last MAC PDU；Or

After the high-rise instruction of this terminal inner is received, it is last MAC to determine currently transmitted MAC PDU PDU, wherein, high level is indicated for notifying the currently transmitted MAC PDU of this terminal to be last MAC PDU.

As a kind of implementation, sending module 91 specifically for：

The instruction is carried in last the MAC PDU sent to network side.

Further, sending module 91 specifically for：

If LTE system, the instruction is represented using the special MAC CE carried in last MAC PDU, and using most Reserved in latter MAC PDU MAC header and untapped any LCID values represent to carry special in last MAC PDU MAC CE；Wherein, being included in special MAC CE is used to represent the identification information that all data are sent；Or

Last MAC is represented using reserved in last MAC PDU MAC header and untapped any LCID values Carried in PDU for representing the instruction that all data are sent.

Further, sending module 91 specifically for：

If UMTS system, being represented using reserved in last MAC PDU MAC header and untapped LCH-ID values should Indicate；Or the instruction is represented using SI that is being carried in last MAC PDU and being arranged to particular value.

As another implementation, sending module 91 is additionally operable to：

If UMTS system, last MAC PDU is being sent to network side, and receive the ACK message of network side feedback Afterwards, physical layer signaling is sent to network side, the instruction is wherein carried in physical layer signaling.

Further, physical layer signaling is special E-RUCCH, wherein, the SI carried in the special E-RUCCH is arranged to special Different value, for identifying the instruction.

As a kind of way of realization, for representing that the SI that all data are sent can be configured to：Total cache information TEBS domains are set to 0, and highest priority logical channel buffer status HLBS domains are set to the fixed value of non-zero.

Further, release module 92 specifically for：

After physical layer signaling is sent to network side, the RRC connections of itself are discharged.

It is preferred that, sending module 91 is additionally operable to：

After last MAC PDU is sent to network side and the ACK message of network side feedback is received, or to network Side is sent after physical layer signaling, starts the timer of configuration；

Release module 92 is additionally operable to：If not sending any data in the timing range of timer, in timer expiry, The RRC connections of itself are discharged, and stop timer.

Further, release module 92 is additionally operable to：

If have sent data in the timing range of timer or have received data, stop timer.

Shown in Figure 10, a kind of network side equipment for being used to discharge RRC connections provided in an embodiment of the present invention is applied to LTE system, including：

Feedback module 101, for after last MAC PDU of terminal transmission is properly received, disappearing to terminal feeding back ACK Breath；

Connection Release module 102, for receive terminal transmission be used for notify what all data of network side were sent After instruction, release is connected with the RRC of terminal, and determines that terminal enters idle condition.

Wherein, what terminal was sent is used to notify the instruction that all data of network side are sent to use aforesaid way A1, mode A2 and mode B, referring specifically to foregoing description, here is omitted.

Further, ACK message is the corresponding ACK message of MAC layer or the corresponding ACK message of rlc layer.

As a kind of implementation, Connection Release module 102 is additionally operable to：

Before the RRC connections of release and terminal, start the timer of configuration；And if feedback module 101 is in timer Any data for carrying out self terminal transmission are not received in timing range, in timer expiry, release is connected with the RRC of terminal, and Stop timer.

Further, Connection Release module 102 is additionally operable to：

If feedback module 101 receives the data for carrying out self terminal transmission in the timing range of timer, stop timer.

Network side equipment is base station in the present embodiment.

It is shown in Figure 11, network side equipment provided in an embodiment of the present invention, applied to UMTS system, the network side equipment Including：

Base station 111, for after last MAC PDU of terminal transmission is properly received, to terminal feeding back ACK message； And receive terminal transmission be used to notify instruction that all data of the network side equipment are sent after, send the indication to RNC112；

RNC112, for after instruction is received, release to be connected with the RRC of terminal, and determines that terminal enters idle condition.

Wherein, what terminal was sent is used to notify the instruction that all data of the network side equipment are sent to use above-mentioned Mode A3, mode A4 and mode B, referring specifically to foregoing description, here is omitted.

As a kind of implementation, reserved if terminal is used in last MAC PDU and untapped LCH-ID values table Show the instruction,

Base station 111 specifically for：After the instruction is received, the MAC header for carrying the instruction is sent by current FP frames To RNC112.

As another implementation, if terminal uses being carried in last MAC PDU and is arranged to particular value SI represent the instruction,

Base station 111 specifically for：When it is determined that SI represents the instruction, pass through the remaining field signals in current FP frames The RNC112 instructions.

As another implementation, if carrying the instruction in the physical layer signaling that terminal is sent to network side,

Base station 111 specifically for：After the instruction carried in receiving physical signaling, the instruction is sent to RNC112.

It is preferred that, base station 111 sends the instruction by lub interface signalings to RNC112.

Further, base station 111 is additionally operable to：After the instruction is received, RNC is notified to start the timer of configuration；

RNC112 is additionally operable to：After the notice of base station 111 is received, start the timer of configuration；And determining in timer When in the range of be not detected by the data of terminal transmission, and in timer expiry, release be connected with the RRC of terminal, and stopping is calmly When device.

Further, RNC112 is additionally operable to：When the data of terminal transmission are detected in the timing range of timer, it is fixed to stop When device.

Based on same inventive concept, a kind of communication system is additionally provided in the embodiment of the present invention, because the system solves to ask The principle of topic is similar with a kind of methods being connected of release RRC shown in Fig. 5 and Fig. 8, therefore the implementation being somebody's turn to do may refer to method Implement, repeat part and repeat no more.

It is shown in Figure 12, a kind of system of release RRC connections provided in an embodiment of the present invention, including：

Terminal 121, for after it is determined that the MAC PDU sent before to network side are last MACPDU, to network Side is sent for representing the instruction that all data are sent, to indicate that network side release is connected with the RRC of this terminal；And connecing After the ACK message for receiving network side feedback, the RRC connections of itself are discharged, and enter idle condition；Wherein, ACK message is network What side was sent after last MAC PDU of this terminal transmission is properly received.

Network side equipment 122, for after last MAC PDU of terminal transmission is properly received, to terminal feeding back ACK Message；And receive terminal transmission be used to notify instruction that all data of the network side are sent after, release and terminal RRC connections, and determine that terminal enters idle condition.

Further, if LTE system, network side equipment 122 is base station；If UMTS system, network side equipment 122 includes Base station and RNC.

With reference to the embodiment enumerated, the method that the present invention discharges RRC connections is illustrated.

Embodiment one, shown in Figure 13, the present embodiment is applied to terminal employing mode A1 in LTE system, the present embodiment Sent with mode A2 for representing the instruction that all data are sent, and timer, the present embodiment are not used in the present embodiment The method of release RRC connections comprises the following steps：

Step 131, terminal and base station（eNB）Between set up RRC connections, and send data to the eNB；

Wherein, the process of RRC connections and the process of data transmission are set up referring to the agreements of 3GPP 36.331 and 3GPP 36.321 agreements.

Step 132, terminal are carried for representing that all data have been sent when sending last MAC PDU to base station Complete instruction, to notify all data of eNB to be sent；

Wherein, the instruction can be a kind of special MAC CE, and its form is shown in Figure 6, wherein, C1 represents the terminal All data be sent, R is reserved；

Further, in last MAC PDU MAC header, still untapped LCID values at present are used（I.e. 01011 ~ 11000）In any one value represent that the MAC PDU carry the MAC CE.

Step 133, eNB are after the instruction is received, to the terminal feeding back ACK message, and discharge the RRC companies with the terminal Connect；

Now, eNB thinks that the terminal is in idle condition；

Step 134, terminal discharge the RRC connections of itself after the ACK message of eNB feedbacks is received, to enter idle shape State.

Embodiment two, shown in Figure 14, the present embodiment is applied to terminal employing mode A1 in LTE system, the present embodiment Sent with mode A2 for representing the instruction that all data are sent, and timer is used in the present embodiment, the present embodiment is released The method for putting RRC connections comprises the following steps：

Step 141, eNB configure timer by System information block, and terminal preserves configuration after the System information block is received Timer；

Step 131 in step 142, be the same as Example one；

Step 132 in step 143, be the same as Example one；

Step 144, eNB to the terminal feeding back ACK message, and start timer after the instruction is received；

Further, if eNB is in the timing range of the timer, the data of terminal transmission are not received, then in the timing After device time-out, release is connected with the RRC of the terminal, and now, the eNB thinks that the terminal has been enter into idle condition；Otherwise, stopping should Timer.

Step 145, terminal start timer when receiving the ACK message of eNB feedbacks；

Further, if the terminal is in the timing range of timer, any data are not sent, then after timer expiry, The RRC connections of itself are discharged, and enter idle condition；Otherwise, i.e., terminal have sent any number in the timing range of timer According to then stopping the timer.

Embodiment three, shown in Figure 15, the present embodiment is applied to terminal employing mode A3 and side in UMTS, the present embodiment Formula A4 is sent for representing the instruction that all data are sent, and timer, the present embodiment release are not used in the present embodiment The method of RRC connections comprises the following steps：

RRC connections are set up between step 151, terminal and base station, RNC, and data are sent to the base station；

Accordingly, base station sends the data to RNC after the data of terminal transmission are received；

RNC carries out respective handling after the data of base station transmission are received.

Wherein, the process of RRC connections and the process of data transmission are set up referring to the agreements of 3GPP 25.331,3GPP 25.321 agreements and the agreements of 3GPP 25.433.

Step 152, terminal are carried for representing the finger that all data are sent when sending last MAC PDU Show, to notify all data of network side to be sent；

As a kind of implementation, the instruction can be represented by the LCH-ID reserved in MAC PDU, specific to represent Mode is shown in Figure 7, wherein, LCH-ID value uses the 1111 of current reservations.

As another implementation, the instruction can be set to particular value to represent by the SI in MAC PDU；Example Such as, the TEBS domains in SI are set to 0, and HLBS domains are set to a fixed nonzero value.

Step 153, base station are received after the instruction, to terminal feeding back ACK message, and all data for identifying the terminal are sent out The MAC header finished is sent, RNC is sent to by current FP frames；

Step 154, RNC parse the data of FP frame ins, after the instruction is got, and release is connected with the RRC of the terminal, and Think that the terminal enters idle condition；

It is preferred that, if the instruction that base station is received is represented using SI, the SI is parsed, and the spare fields in FP frames are set For 1bit fixation implication, to notify the data of the RNC terminals to be sent；

Accordingly, RNC parses FP frames, recognizes after the instruction, and release is connected with the RRC of the terminal, and thinks that the terminal is entered Enter idle condition.

Step 155, terminal discharge the RRC connections of itself, and enter idle shape when receiving the ACK message of base station feedback State.

It should be noted that step 155 can also be first carried out in the present embodiment, then perform step 154.

Example IV, shown in Figure 16, the present embodiment is applied to terminal employing mode A3 and side in UMTS, the present embodiment Formula A4 is sent for representing the instruction that all data are sent, and timer, the present embodiment release RRC are used in the present embodiment The method of connection comprises the following steps：

Step 161, RNC configure timer by System information block；

Accordingly, terminal preserves the timer after the System information block is received；

Step 151 in step 162, be the same as Example three；

Step 152 in step 163, be the same as Example three；

Step 164, base station are received after the instruction, feeding back ACK message, and the instruction is notified to RNC；

Step 165, RNC start the timer of configuration after the instruction of base station transmission is received；

Further, if in the timing range of timer, the data of terminal transmission are not received, then in timer expiry Afterwards, release is connected with the RRC of the terminal, now, network side equipment（RNC and base station）Think that the terminal enters idle states；It is no Then, the timer is stopped.

Step 166, terminal start the timer preserved after the ACK message of base station feedback is received；

Further, if in the timing range of timer, the terminal does not send or received data, then terminal is in timer After time-out, the RRC connections of itself are discharged, and enter idle states；Otherwise, the timer is stopped.

It should be noted that in the present embodiment, step 166 can also be first carried out, then perform step 165.

Embodiment five, shown in Figure 17, the present embodiment is applied to terminal employing mode B in UMTS, the present embodiment and sent Timer is not used for representing the instruction that all data are sent, and in the present embodiment, the present embodiment release RRC connections Method comprises the following steps：

Step 151 in step 171, be the same as Example three；

Step 172, terminal are sending last MAC PDU to base station；

Step 173, base station disappear after last MAC PDU of terminal transmission is properly received to the terminal feeding back ACK Breath；

Step 174, terminal send special E-RUCCH after the ACK message of base station transmission is received, wherein, the special E- Carried in RUCCH for representing the instruction that all data are sent；

As a kind of implementation, the SI for being arranged to particular value is carried in the special E-RUCCH, specifically, SI TEBS domains are set to 0, and its HLBS domain is set to the fixed value of a non-zero；

Step 175, terminal discharge the RRC connections of itself, and enter idle states after the special E-RUCCH has been sent；

Step 176, base station notify the instruction to RNC after the instruction of terminal transmission is received；

Wherein, base station to RNC can send the instruction by Iub interface signaling.

Step 177, RNC are after the instruction of base station transmission is received, and release is connected with the RRC of the terminal, it is believed that the terminal Into idle states.

It should be noted that step 176 and step 177 can be first carried out in the present embodiment, then perform step 175.

Embodiment six, shown in Figure 18, the present embodiment is applied to terminal employing mode B in UMTS, the present embodiment and sent Timer is used for representing the instruction that all data are sent, and in the present embodiment, the present embodiment discharges the side of RRC connections Method comprises the following steps：

Step 181, RNC configure timer by System information block；

Step 171 in step 182, be the same as Example five；

Step 172 in step 183, be the same as Example five；

Step 173 in step 184, be the same as Example five；

Step 174 in step 185, be the same as Example five；

Step 186, terminal start timer after the special E-RUCCH has been sent；

Further, if in the timing range of timer, the terminal does not send or received data, then the terminal is in timing After device time-out, the RRC connections of itself are discharged, and enter idle states；Otherwise, the timer is stopped.

Step 187, base station notify the instruction to RNC after the instruction of terminal transmission is received；

Step 188, RNC start timer after the instruction of base station transmission is received；

Further, if do not received in the range of timer the terminal transmission data, RNC in the timer expiry, Release is connected with the RRC of the terminal afterwards, it is believed that terminal enters idle states；Otherwise, RNC stops the timer.

It should be noted that step 187 and step 188 can also be first carried out in the present embodiment, then perform step 186.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program production of upper implementation The form of product.

The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.

, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent Select embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims

1. a kind of method of release RRC connections, it is characterised in that this method includes：

Terminal is it is determined that when the preceding Media access contorl Packet Data Unit MAC PDU sent to network side are last MAC After PDU, sent to the network side for representing the instruction that all data are sent, to indicate the network side release and this The RRC connections of terminal；

The terminal discharges the RRC connections of itself, gone forward side by side after the correct response ACK message of the network side feedback is received Enter idle condition；Wherein, the ACK message is that the network side is being properly received last MAC PDU of this terminal transmission Send afterwards.

2. the method as described in claim 1, it is characterised in that the terminal determines currently transmitted MAC in the following manner PDU is last MAC PDU：

It is sky, the terminal to be used for data cached buffer if setting up after the currently transmitted MAC PDU, in the terminal It is last MAC PDU to determine currently transmitted MAC PDU；Or

The terminal is after the high-rise instruction inside it is received, and it is last MAC to determine currently transmitted MAC PDU PDU, wherein, the high level is indicated for notifying the currently transmitted MAC PDU of the terminal to be last MAC PDU.

3. the method as described in claim 1, it is characterised in that the terminal is sent for representing all numbers to the network side According to the instruction being sent, including：

The terminal carries the instruction in last the MAC PDU sent to the network side.

4. method as claimed in claim 3, it is characterised in that if LTE system,

The terminal represents the instruction using the special MAC CE carried in last described MAC PDU, and using described Reserved in last MAC PDU MAC header and untapped any LCID values represent to carry in last described MAC PDU The special MAC CE；Wherein, being included in the special MAC CE is used to represent the identification information that all data are sent；Or Person

The terminal is reserved in the MAC header using last MAC PDU and untapped any LCID values represent described The instruction is carried in last MAC PDU.

5. method as claimed in claim 3, it is characterised in that if UMTS system,

The terminal is reserved in the MAC header using last MAC PDU and untapped LCH-ID values represent described and referred to Show；Or

The terminal is using schedule information carried in last described MAC PDU and that particular value is set to by the terminal SI represents the instruction.

6. the method as described in claim 1, it is characterised in that if UMTS system, the terminal is sent to the network side It is described to indicate, including：

Sending last described MAC PDU to the network side, and receive the network side feedback the ACK message it Afterwards, the terminal sends physical layer signaling to the network side, wherein carrying the instruction in the physical layer signaling.

7. method as claimed in claim 6, it is characterised in that the physical layer signaling be special enhancement type special channel-with Machine accesses ascending control channel E-RUCCH, wherein, the SI carried in the special E-RUCCH is arranged to particular value, for marking Know described indicate.

8. the method as described in claim 5 or 7, it is characterised in that the SI's is set to：Total cache information TEBS domains are set For 0, and highest priority logical channel buffer status HLBS domains are set to the fixed value of non-zero.

9. method as claimed in claim 6, it is characterised in that the terminal discharges the RRC connections of itself, including：

The terminal discharges the RRC connections of itself after the physical layer signaling is sent to the network side.

10. the method as described in claim 3 or 6, it is characterised in that send last to the network side in the terminal MAC PDU and receive after the ACK message of network side feedback, or to the network side physical layer letter is sent in the terminal After order, methods described also includes：

The terminal starts the timer of configuration；

If the terminal does not send any data in the timing range of the timer, the terminal is in the timer expiry When, the RRC connections of itself are discharged, and stop the timer.

11. method as claimed in claim 10, it is characterised in that methods described also includes：

If the terminal have sent data in the timing range of the timer or have received data, the terminal stops described Timer.

12. method as claimed in claim 10, it is characterised in that the timer is configured by the network side, or in association The timer is provided in view.

13. method as claimed in claim 12, it is characterised in that the network side notifies the terminal by System information block The timer of configuration, or the timer that the terminal is configured is notified by RRC signaling.

14. the method as described in claim 1, it is characterised in that the ACK message is the corresponding ACK message of MAC layer or RLC The corresponding ACK message of layer.

15. a kind of method of release RRC connections, it is characterised in that this method includes：

The network side notifies in being used for of getting that the terminal sends after the instruction that all data of the network side are sent, Release is connected with the RRC of the terminal, and determines that the terminal enters idle condition.

16. method as claimed in claim 15, it is characterised in that the ACK message is the corresponding ACK message of MAC layer or RLC The corresponding ACK message of layer.

17. method as claimed in claim 15, it is characterised in that if UMTS system, and the terminal is using described last Reserved in one MAC PDU and untapped LCH-ID values represent described and indicated, the network side release and the RRC of the terminal Connection includes：

The MAC header of the carrying instruction is sent to RNC by base station after the instruction is received by current Frame Protocol FP frames；

The RNC is after the instruction is got, and release is connected with the RRC of the terminal.

18. method as claimed in claim 15, it is characterised in that if UMTS system, and the terminal is using described last SI that is being carried in one MAC PDU and being set to particular value by the terminal represents the instruction, the network side release with The RRC connections of the terminal, including：

Base station is when it is determined that the SI represents the instruction, by being indicated described in the remaining field signals RNC in current FP frames；

19. method as claimed in claim 15, it is characterised in that if UMTS system, and the terminal is to the network side The instruction is carried in the physical layer signaling of transmission, the network side release is connected with the RRC of the terminal, including：

Base station sends described indicate after the instruction carried in receiving the physical signaling to RNC；

The RNC is after the instruction is received, and release is connected with the RRC of the terminal.

20. the method as described in claim 17~19 is any, it is characterised in that the base station is by lub interface signalings to institute State RNC and send described indicate.

21. method as claimed in claim 15, it is characterised in that after the network side receives the instruction, and described Before network side release is connected with the RRC of the terminal, methods described also includes：

The network side starts the timer of configuration；

If not receiving any data sent from the terminal in the timing range of the timer, the network side is in institute When stating timer expiry, release is connected with the RRC of the terminal, and stops the timer.

22. method as claimed in claim 21, it is characterised in that methods described also includes：

If receiving the data sent from the terminal in the timing range of the timer, it is described fixed that the network side stops When device.

23. method as claimed in claim 21, it is characterised in that if UMTS system, the network side starts determining for configuration When device, including：

Base station notifies RNC to start the timer of configuration after the instruction is received；

The RNC starts the timer of configuration after the notice is received；And if not examined in the timing range of the timer The data that the terminal is sent are measured, the RNC is in the timer expiry, and release is connected with the RRC of the terminal, and is stopped The only timer.

24. method as claimed in claim 23, it is characterised in that methods described also includes：

If detecting the data that the terminal is sent in the timing range of the timer, the RNC stops the timer.

25. the method as described in claim 21~24 is any, it is characterised in that the timer is configured by the network side, Or the timer is provided in the protocol.

26. method as claimed in claim 25, it is characterised in that methods described also includes：

The network side notifies the timer that the terminal is configured by System information block, or notifies the end by RRC signaling Hold the timer of configuration.

27. a kind of terminal, it is characterised in that the terminal includes：

Sending module, for after it is determined that the MAC PDU sent before to network side are last MAC PDU, to the net Network side is sent for representing the instruction that all data are sent, to indicate that the network side release is connected with the RRC of this terminal；

Release module, for after the ACK message of the network side feedback is received, discharging the RRC connections of itself, and enter empty Not busy state；Wherein, the ACK message is that the network side is being properly received last MAC that the sending module is sent Sent after PDU.

28. terminal as claimed in claim 27, it is characterised in that the sending module is additionally operable to：

After the currently transmitted MAC PDU are set up, if it is sky to be used for data cached buffer in this terminal, it is determined that currently The MAC PDU of transmission are last MAC PDU；Or

After the high-rise instruction of this terminal inner is received, it is last MAC PDU to determine currently transmitted MAC PDU, its In, the high level is indicated for notifying the currently transmitted MAC PDU of this terminal to be last MAC PDU.

29. terminal as claimed in claim 27, it is characterised in that the sending module specifically for：

The instruction is carried in last the MAC PDU sent to the network side.

30. terminal as claimed in claim 29, it is characterised in that the sending module specifically for：

If LTE system, the instruction is represented using the special MAC CE carried in last described MAC PDU, and use Reserved in the MAC header of last MAC PDU and untapped any LCID values are represented in last described MAC PDU Carry the special MAC CE；Wherein, the mark letter for being used for representing that all data are sent is included in the special MAC CE Breath；Or

Using reserved in the MAC header of last MAC PDU and untapped any LCID values represent described in last The instruction is carried in MAC PDU.

31. terminal as claimed in claim 29, it is characterised in that the sending module specifically for：

If UMTS system, institute is represented using reserved in the MAC header of last MAC PDU and untapped LCH-ID values State instruction；Or the instruction is represented using SI that is being carried in last described MAC PDU and being arranged to particular value.

32. terminal as claimed in claim 27, it is characterised in that the sending module is additionally operable to：

If UMTS system, last described MAC PDU is being sent to the network side, and receive the network side feedback After the ACK message, physical layer signaling is sent to the network side, wherein carrying the instruction in the physical layer signaling.

33. terminal as claimed in claim 32, it is characterised in that the physical layer signaling is special E-RUCCH, wherein, institute State the SI carried in special E-RUCCH and be arranged to particular value, for identifying the instruction.

34. the terminal as described in claim 31 or 33, it is characterised in that the SI's is set to：Total cache information TEBS domains 0 is set to, and highest priority logical channel buffer status HLBS domains are set to the fixed value of non-zero.

35. terminal as claimed in claim 32, it is characterised in that the release module specifically for：

After the physical layer signaling is sent to the network side, the RRC connections of itself are discharged.

36. the terminal as described in claim 29 or 32, it is characterised in that the sending module is additionally operable to：

After last MAC PDU is sent to the network side and the ACK message of network side feedback is received, or to The network side is sent after physical layer signaling, starts the timer of configuration；

The release module is additionally operable to：If not sending any data in the timing range of the timer, in the timer When overtime, the RRC connections of itself are discharged, and stop the timer.

37. terminal as claimed in claim 36, it is characterised in that the release module is additionally operable to：

If have sent data in the timing range of the timer or have received data, stop the timer.

38. a kind of network side equipment, applied to LTE system, it is characterised in that the network side equipment includes：

Connection Release module, for receiving that the terminal sends for the instruction that notifies all data of network side to be sent Afterwards, release is connected with the RRC of the terminal, and determines that the terminal enters idle condition.

39. network side equipment as claimed in claim 38, it is characterised in that the ACK message is that the corresponding ACK of MAC layer disappears Breath or the corresponding ACK message of rlc layer.

40. network side equipment as claimed in claim 38, it is characterised in that the Connection Release module is additionally operable to：

Before release is connected with the RRC of the terminal, start the timer of configuration；And if the feedback module is in the timing Do not received in the timing range of device from the terminal send any data, in the timer expiry, release with it is described The RRC connections of terminal, and stop the timer.

41. network side equipment as claimed in claim 40, it is characterised in that the Connection Release module is additionally operable to：

If the feedback module receives the data sent from the terminal in the timing range of the timer, stop described Timer.

42. network side equipment as claimed in claim 38, it is characterised in that the network side equipment is base station.

43. a kind of network side equipment, applied to UMTS system, it is characterised in that the network side equipment includes：

Base station, for after last MAC PDU of terminal transmission is properly received, to the terminal feeding back ACK message；And Being used for of receiving that the terminal sends is notified after the instruction that all data of the network side equipment are sent, and indicates to send by described To RNC；

RNC, for after the instruction is received, discharging and being connected with the RRC of the terminal, and it is idle to determine that the terminal enters State.

44. network side equipment as claimed in claim 43, it is characterised in that if the terminal is using last described MAC Reserved in PDU and untapped LCH-ID values represent described and indicated,

The base station specifically for：After the instruction is received, the MAC header for carrying the instruction is sent by current FP frames To RNC.

45. network side equipment as claimed in claim 43, it is characterised in that if the terminal is using last described MAC SI that is being carried in PDU and being set to particular value by the terminal represents the instruction,

The base station specifically for：When it is determined that the SI represents the instruction, led to by the remaining field in current FP frames Know and indicated described in RNC.

46. network side equipment as claimed in claim 43, it is characterised in that if the thing that the terminal is sent to the network side The instruction is carried in reason layer signaling,

The base station specifically for：After the instruction carried in receiving the physical signaling, described indicate is sent to RNC.

47. the network side equipment as described in claim 43~46 is any, it is characterised in that believed by lub interfaces the base station Make to the RNC and send described indicate.

48. network side equipment as claimed in claim 43, it is characterised in that the base station is additionally operable to：Receiving the instruction Afterwards, RNC is notified to start the timer of configuration；

The RNC is additionally operable to：After the notice of the base station is received, start the timer of configuration；And in the timer The data that the terminal is sent are not detected by timing range, and in the timer expiry, release and the RRC of the terminal Connection, and stop the timer.

49. network side equipment as claimed in claim 48, it is characterised in that the RNC is additionally operable to：In determining for the timer When in the range of when detecting the data that the terminal is sent, stop the timer.

50. a kind of communication system, it is characterised in that the communication system includes：

Terminal, for after it is determined that the MAC PDU sent before to network side are last MAC PDU, to the network side Send for representing the instruction that all data are sent, to indicate that the network side release is connected with the RRC of this terminal；And After the ACK message for receiving the network side feedback, the RRC connections of itself are discharged, and enter idle condition；Wherein, the ACK Message is that the network side is sent after last MAC PDU of this terminal transmission is properly received；

Network side equipment, for after last MAC PDU of terminal transmission is properly received, disappearing to the terminal feeding back ACK Breath；And notified in being used for of receiving that the terminal sends after instruction that all data of the network side are sent, release with it is described The RRC connections of terminal, and determine that the terminal enters idle condition.

51. system as claimed in claim 50, it is characterised in that if LTE system, the network side equipment is base station；If For UMTS system, the network side equipment includes base station and RNC.