CN101702812B

CN101702812B - Non-continuous receiving control method and device

Info

Publication number: CN101702812B
Application number: CN2009102370801A
Authority: CN
Inventors: 田辉; 胡铮; 张平; 黄波; 徐海博
Original assignee: Beijing University of Posts and Telecommunications
Current assignee: Beijing University of Posts and Telecommunications
Priority date: 2009-11-03
Filing date: 2009-11-03
Publication date: 2012-02-08
Anticipated expiration: 2029-11-03
Also published as: CN101702812A

Abstract

The invention relates to the field of data communication, in particular to a non-continuous receiving control method and a device. The method comprises the following steps: starting the corresponding hybrid automatic repeat request process after a user end device receives new data, carrying out the corresponding adjustment on all timers in a non-continuous receiving mechanism, and verifying the received new data, if correct, feeding back a confirmation signal to a base station end device; if wrong, feeding back a non-confirmation signal to the base station end device; adjusting the repeat process according to whether the feedback from the user end device occurs or not in the follow-up process and the type of the feedback after the base station end device sends the data; and adjusting the repeat process after the user end device completes the verification of repeat data and under various situations in the follow-up process. The method can realize the synchronization of the base station end device with the user end device under the wrong signals by increasing two new timers, thereby eliminating the affects on packet loss rate due to that part of the signals are wrong and the unnecessary waste of network resources caused by non-synchronous repeat data.

Description

A kind of non-continuous receiving control method and device

Technical field

The present invention relates to data communication field, be specifically related to a kind of non-continuous receiving control method and device.

Background technology

The epoch of 3G/4G come up to us in big strides, the function at terminal from strength to strength, these functions have been enriched the demand of people to amusement greatly, but have also increased simultaneously the power consumption at terminal.Along with the load that only depends on battery powered portable mobility terminal is more and more heavier, for guaranteeing the service time and the stand-by time at terminal, advanced Energy Saving Strategy and power management system are demanded exploitation urgently.

Current aspect energy-conservation the most deep communications field of research be wireless sensor network.Because the particularity of wireless sensor network makes energy saving become the key research point of such network and main performance index.The various power save modes of containing physical layer, link layer, network layer, transport layer, application layer all develop rapidly.Yet the power-saving technology of wireless sensor network is a cost with reduction network throughput, increase network delay all to a great extent, is not suitable for being transplanted to cellular communications networks.

In the middle of cellular communication mechanisms, the power-saving technology of link layer has realization simple, a kind of so just mode of the characteristics that achieve noticeable achievement, discontinuous reception mechanism.In the 2G system; The terminal has just adopted this mode to wake up once check whether incoming call is arranged at set intervals to increase stand-by time: GSM (Global System forMobile Communications-global system for mobile communications) terminal, can close the sleep pattern that receiver gets into low-power consumption At All Other Times.

In the middle of UMTS (Universal Mobile Telecommunications System-UMTS) system and 802.16e system, the most basic discontinuous reception mechanism all is that the terminal accepting state is divided into resting state and state of activation.Whether in resting state, all adopting periodic listening interval to check has downlink data, and what wherein UMTS adopted is the cycle of fixing, and 802.16e then can have more selections flexibly.In case network side has the downlink data at this terminal etc. to be sent, just with corresponding signaling terminal entering state of activation.

In the discontinuous reception mechanism of the 3GPP of ending standard work (3rd Generation Partnership Project-third generation partner program) LTE (Long Term Evolution-Long Term Evolution) system; The residing state of UE (User Equipment, user terminal) is confirmed by the mechanism of three types of parallel processings:

Time opening: the value that after System Frame Number is to the discontinuous receiving cycle modulo operation, obtains equal the Offset value of systemic presupposition the time; Open a duration timer (On_Duration Timer); Control its receiver and be in state of activation; Monitor down control channel receiving the descending control signaling that arrives and the arrival of data, and network side and end side open synchronously, to avoid extra signaling consumption.

Data activation: arrive in case UE has detected downlink data, then open perhaps and restart a deexcitation timer (Inactivity Timer), control its receiver and keep state of activation, monitor down control channel.And network side and end side are opened synchronously or are restarted, to avoid extra signaling consumption.

Retransmit to activate: this active mode is aimed at HARQ (Hybrid-ARQ-mixes automatic repeat requests) mechanism.After the terminal receives downlink data; If make mistakes through interpreter code discovery data; Then feed back NACK (the non-acknowledge character of NotACKnowledge Character-) signaling and start a round-trip delay timer (RTT Timer); And when the round-trip delay timer finishes, start a re-transmission timer (Retransmission Timer), retransmit timer and require UE to be in state of activation the time of running to receive descending data retransmission.Then continue the repeated retransmission state of activation if continue to make mistakes.In this process, network side can feed back to confirm whether UE experiences the re-transmission state according to ACK (ACKnowledge Character-the acknowledge character)/NACK at terminal, thereby realizes the synchronous of no extra signaling consumption.

As long as above-mentioned three types of treatment mechanisms have any one type of mechanism to require UE to be in state of activation, then UE is in state of activation.Under above-mentioned three types of mechanism and other situation about all not requiring such as uplink random access, channel measurement etc., UE closes the sleep pattern that receiver gets into low-power consumption.

In the power-saving mechanism of LTE, in order to save signaling consumption, retransmit active mode and support HARQ mechanism through adding, yet also therefore produced a problem that waits to solve: the signaling mistake in the account for retransmission mechanism how.

As shown in Figure 1, the problem of desynchronization of the eNB (Evolved Node B-base station) that causes under PDCCH (Physical Downlink Control Channel-physical layer descending control channel) the signaling loss situation of carrying the data retransmission resource allocation information and UE has been described.Because UE does not have to detect the PDCCH of re-transmission; Its re-transmission timer possibly overflow; And the eNB end can't know that UE has lost the situation of PDCCH, thereby can finish the back at a HARQRTT timer and select one to continue constantly to send the data that retransmit, and UE has got into resting state at the moment; Thereby can't receive descending data retransmission, bring bigger time delay to data retransmission.

As shown in Figure 2, described as UE and be the problem of NACK to the ACK information dropout of eNB feedback or by mistranslation.UE can stop corresponding retransmission timer and HARQ process owing to received proper data, yet eNB can continue re-transmission, but each re-transmission all can't be received feedback.Therefore will cause the significant wastage of Internet resources to the scheduling of resource of these data retransmissions.

To this problem, some solutions have been arranged at present:

Scheme 1: as shown in Figure 3, UE does not stop to retransmit timer when receiving data retransmission, if error in data is restarted the round-trip delay timer again and then started the re-transmission state when retransmitting the timer end; ENB does not stop to retransmit timer yet after sending data retransmission, if fail to receive the ACK feedback, then when retransmitting the timer end, restart the round-trip delay timer, then restarts the re-transmission state.(Fig. 3 .1) still can realize the synchronous of network side and user side under the situation that PDCCH loses like this.Yet this scheme under normal circumstances can be brought 2 main influences (Fig. 3 .2): 1. the average delay that can increase by twice above retransmission data packet may under the normal condition; 2. because the terminal does not stop to retransmit timer after receiving data, so UE still is in normal reiving/transmitting state, can increase UE energy consumption under normal circumstances.

Scheme 2: as shown in Figure 4; UE is retransmitting under the situation that timer overflows, and does not get into the round-trip delay timer stage and directly restarts the time span that retransmits timer and let this re-transmissions timer and guarantee once more the reception of data retransmission for the length of initial re-transmission timer adds the length of round-trip delay timer.In fact this scheme is exactly the re-transmission timer that prolongs UE; Its drawback of bringing is after the signaling mistake occurring; ENB end is in the round-trip delay timer timing stage for some time, can not send data and UE keeps state of activation always, has increased the energy consumption of UE.

Scheme 3:UE starts the round-trip delay timer and when it overflows, gets into the re-transmission stage receiving after the misdata, and lasts till the time delay maximum that correctly receives till the data retransmission or arrive retransmission data packet may always.This scheme realizes more or less freely; In case its drawback of bringing is to occur that NACK is mistaken as the ACK mistake then the energy loss that can cause increasing UE, in case occur ACK be mistaken as NACK mistake or ACK lose then can cause that the continuous data retransmission of eNB brings to resource waste.

Other scheme, for example: 1) restart the re-transmission timer, do not change its value and adopt the multiple several times that open; 2) retransmit timer and be set to a bigger value, be similar to scheme 2 or scheme 3 in the effect that implements, so repeat no more at this.

Summary of the invention

To defective of the prior art and deficiency, the purpose of this invention is to provide a kind of non-continuous receiving control method and device, can be implemented in eNB and UE under the signaling mistake synchronously.

In order to achieve the above object, the present invention proposes a kind of non-continuous receiving control method, comprise the steps:

Step 1: base station end device is sent new data to ustomer premises access equipment, starts corresponding hybrid automatic repeat request process simultaneously, and each timer in the discontinuous reception mechanism is carried out corresponding adjustment;

Discontinuous reception mechanism timer in the said hybrid automatic repeat request process comprises that base station end round-trip delay timer, base station end retransmit timer, base station end expansion round-trip delay timer and base station end and retransmit the residue timer;

The said hybrid automatic repeat request process that starts correspondence is for starting base station end round-trip delay timer;

Said adjustment comprises:

(1) length of overflowing of said base station end expansion round-trip delay timer is set to the equal in length of overflowing with said base station end round-trip delay timer;

(2) said base station end retransmits the initial overflow value of residue timer and is set to 0;

Step 2: after ustomer premises access equipment is received the new data from base station end device, start corresponding hybrid automatic repeat request process, each timer in the discontinuous reception mechanism is carried out corresponding adjustment;

Discontinuous reception mechanism timer in the said hybrid automatic repeat request process comprises that user side round-trip delay timer, user side retransmit timer, user side expansion round-trip delay timer and user side and retransmit the residue timer;

The said hybrid automatic repeat request process that starts correspondence is for starting user side round-trip delay timer, check the data that receive and sending feedback signaling;

Said adjustment comprises:

(1) length of overflowing of said user side expansion round-trip delay timer is set to the equal in length of overflowing with said user side round-trip delay timer;

(2) said user side retransmits the initial overflow value of residue timer and is set to 0;

Step 3: ustomer premises access equipment carries out verification to the new data of receiving, specifically comprises the steps:

Step 3.1: if data correctly then the feedback acknowledgment signaling give base station end device and stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer;

Step 3.2: give base station end device if error in data then feeds back non-affirmation signaling, after said user side round-trip delay timer overflows, start said user side and retransmit timer;

Step 4: base station end device according to follow-up feedback and which kind of the feedback adjustment retransmission process that has or not from ustomer premises access equipment, specifically comprises the steps: after having sent data

Step 4.1: base station end device when said base station end round-trip delay timer overflows, is not received the feedback from ustomer premises access equipment after having sent data, then starts said base station end and retransmits timer; Retransmit timer in said base station end and send data retransmission in the operation period, stop said base station end simultaneously and retransmit timer and start said base station end expansion round-trip delay timer;

Stop constantly said base station end re-transmission residue timer being carried out overflow value at said base station end re-transmission timer and reconfigure, said base station end re-transmission remains the timer overflow value and equals the currency that length deducts said base station end re-transmission timer that overflows that said base station end retransmits timer;

Step 4.2: base station end device is after having sent data; Overflow in the period at said base station end round-trip delay timer; Receive affirmation signaling feedback, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from ustomer premises access equipment;

Step 4.3: base station end device is overflowed in the period at said base station end round-trip delay timer after having sent data, receives the non-affirmation signaling feedback from ustomer premises access equipment, then starts said base station end and retransmits timer; Retransmit timer in said base station end and send data retransmission in the operation period, stop said base station end simultaneously and retransmit timer and start said base station end round-trip delay timer;

Step 5: ustomer premises access equipment is sending after non-affirmation signaling gives base station end device, according to follow-up have or not from the data retransmission and the data retransmission of base station end device whether correct, the adjustment retransmission process, said step 3.2 specifically comprises the steps:

Step 3.2.1: when said user side re-transmission timer overflows; Do not receive data retransmission from base station end device; Then start said user side expansion round-trip delay timer, when said user side expansion round-trip delay timer overflows, start said user side and retransmit timer;

Step 3.2.2: retransmit timer at said user side and overflow in the period; Receive data retransmission from base station end device; Ustomer premises access equipment then stops said user side and retransmits the timer operation and the new data of receiving is carried out verification, if correctly then the feedback acknowledgment signaling give base station end device and stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer;

Step 3.2.3: retransmit timer at said user side and overflow in the period; Receive data retransmission from base station end device; Ustomer premises access equipment then stops said user side and retransmits the timer operation; Stop constantly said user side re-transmission residue timer being carried out overflow value at said user side re-transmission timer and reconfigure, said user side re-transmission remains the timer overflow value and equals the currency that length deducts said user side re-transmission timer that overflows that said user side retransmits timer;

Ustomer premises access equipment carries out verification to the data of receiving simultaneously; If then feeding back non-affirmation signaling, mistake gives base station end device; Start said user side round-trip delay timer simultaneously; When said user side round-trip delay timer overflows, start said user side and retransmit the residue timer, said user side retransmits and starts said user side re-transmission timer when the residue timer overflows;

The order of said step 4 and step 5 can be changed.

Said step 4.1 specifically comprises the steps:

Step 4.1.1: base station end device is after having sent data retransmission; When said base station end expansion round-trip delay timer overflows; Do not receive feedback, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from ustomer premises access equipment;

Step 4.1.2: base station end device is after having sent data retransmission; Overflow in the period at said base station end expansion round-trip delay timer; Receive affirmation signaling feedback, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from ustomer premises access equipment;

Step 4.1.3: base station end device is after having sent data retransmission; Overflow in the period at said base station end expansion round-trip delay timer; Receive non-affirmation signaling feedback from ustomer premises access equipment; Then start said base station end and retransmit the residue timer; When said base station end re-transmission residue timer overflows, start said base station end and retransmit timer, retransmit timer in said base station end and send data retransmission in the operation period, stop said base station end re-transmission timer simultaneously and start said base station end round-trip delay timer and said base station end is retransmitted the residue timer reconfiguring.

Said step 4.1.3 specifically comprises the steps:

Step 4.1.3.1: base station end device is after having sent data retransmission; Overflow in the period at said base station end round-trip delay timer; Do not receive feedback from ustomer premises access equipment; Then start said base station end and retransmit the residue timer; When said base station end re-transmission residue timer overflows, start said base station end and retransmit timer, retransmit timer in said base station end and send data retransmission in the operation period, stop said base station end re-transmission timer simultaneously and start said base station end expansion round-trip delay timer and said base station end is retransmitted the residue timer reconfiguring;

Step 4.1.3.2: base station end device is after having sent data retransmission; Overflow in the period at said base station end round-trip delay timer; Receive affirmation signaling feedback, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from ustomer premises access equipment;

Step 4.1.3.3: base station end device is overflowed in the period at said base station end round-trip delay timer after having sent data retransmission, receives the non-affirmation signaling feedback from ustomer premises access equipment, then repeating step 4.1.3.

Said step 4.1.3.1 specifically comprises the steps:

Step 4.1.3.1.1: base station end device is after having sent data retransmission; Overflow in the period at said base station end expansion round-trip delay timer; Do not receive feedback, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from ustomer premises access equipment;

Step 4.1.3.1.2: base station end device is after having sent data retransmission; Overflow in the period at said base station end expansion round-trip delay timer; Receive affirmation signaling feedback, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from ustomer premises access equipment;

Step 4.1.3.1.3: base station end device is overflowed in the period at said base station end expansion round-trip delay timer after having sent data retransmission, receives the non-affirmation signaling feedback from ustomer premises access equipment, then repeating step 4.1.3.

Said step 4.3 specifically comprises the steps:

Step 4.3.1: base station end device is overflowed in the period at said base station end round-trip delay timer after having sent data retransmission, does not receive the feedback from ustomer premises access equipment, then repeating step 4.1.3.1;

Step 4.3.2: base station end device is after having sent data retransmission; Overflow in the period at said base station end round-trip delay timer; Receive affirmation signaling feedback, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from ustomer premises access equipment;

Step 4.3.3: base station end device is overflowed in the period at said base station end round-trip delay timer after having sent data retransmission, receives the non-affirmation signaling feedback from ustomer premises access equipment, then repeating step 4.1.3.

Said step 3.2.1 comprises the steps:

Step 3.2.1.1: when said user side re-transmission timer overflows, do not receive data retransmission, then stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer from base station equipment;

Step 3.2.1.2: retransmit timer at said user side and overflow in the period; Receive data retransmission from base station equipment; Ustomer premises access equipment then stops said user side and retransmits the timer operation and the new data of receiving is carried out verification, if correctly then the feedback acknowledgment signaling give base station end device and stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer;

Step 3.2.1.3: retransmit timer at said user side and overflow in the period; Receive data retransmission from base station end device; Ustomer premises access equipment then stops said user side and retransmits the timer operation and the new data of receiving is carried out verification; If then feeding back non-affirmation signaling, mistake gives base station end device, repeating step 3.2.3 then.

Said step 3.2.3 comprises the steps:

Step 3.2.3.1: when said user side re-transmission timer overflows, do not receive data retransmission, then repeating step 3.2.1 from base station end device;

Step 3.2.3.2: retransmit timer at said user side and overflow in the period; Receive data retransmission from base station end device; Ustomer premises access equipment then stops said user side and retransmits the timer operation and the new data of receiving is carried out verification, if correctly then the feedback acknowledgment signaling give base station end device and stop corresponding hybrid automatic repeat request process and discontinuous reception mechanism timer;

Step 3.2.3.3: retransmit timer at said user side and overflow in the period; Receive data retransmission from base station end device; Ustomer premises access equipment then stops said user side and retransmits the timer operation and the new data of receiving is carried out verification; If then feeding back non-affirmation signaling, mistake gives base station end device, repeating step 3.2.3 then.

In addition; The present invention also provides a kind of discontinuous receiving control device; Comprise that base station end device, ustomer premises access equipment, base station end round-trip delay timer, base station end retransmit timer, user side round-trip delay timer, user side re-transmission timer; It is characterized in that this device comprises that also base station end expansion round-trip delay timer, base station end retransmit residue timer, user side expansion round-trip delay timer, user side re-transmission residue timer;

The feedback signal that said base station end expansion round-trip delay timer is used for recording user end equipment does not receive from the ustomer premises access equipment feedback signal apart from the minimum interval of base station end device re-transmitted signal delivery time and the data before the expression transmission course again;

Said user side expansion round-trip delay timer is used for writing down the base station end device re-transmitted signal and does not receive the data retransmission from base station end device apart from the minimum interval of ustomer premises access equipment feedback signal delivery time and the data before the expression transmission course again;

Said base station end retransmits the residue timer and is used to supply the simultaneous operation of the surplus value of said base station end re-transmission timer with retransmission process between realization base station end device and the ustomer premises access equipment;

Said user side retransmits the residue timer and is used to supply the simultaneous operation of the surplus value of said user side re-transmission timer with retransmission process between realization base station end device and the ustomer premises access equipment.

Said base station end expansion round-trip delay timer overflows length and equals said base station end round-trip delay timer and overflow length;

Said user side expansion round-trip delay timer overflows length and equals the said round-trip delay timer of user side and overflow length;

The initial overflow value of configuration that said base station end retransmits the residue timer is 0; Retransmit timer in said base station end and stop constantly to reconfigure, its overflow value equals the currency that length deducts said base station end re-transmission timer that overflows that said base station end retransmits timer;

The initial overflow value of configuration that said user side retransmits the residue timer is 0; Retransmit timer at said user side and stop constantly to reconfigure, its overflow value equals the currency that length deducts said user side re-transmission timer that overflows that said user side retransmits timer.

It is 0 o'clock that said base station end retransmits residue timer overflow value, and said base station end retransmits timer and when said base station end round-trip delay timer overflows, starts;

It is not 0 o'clock that said base station end retransmits residue timer overflow value, and said base station end retransmits the residue timer and when said base station end round-trip delay timer or said base station end expansion round-trip delay timer overflow, starts; Said base station end retransmits timer and when said base station end re-transmission residue timer overflows, starts.

When said base station end device received and confirms signaling from being fed back to of ustomer premises access equipment, said base station end timer was all out of service;

When said base station end device received from the non-affirmation signaling of being fed back to of ustomer premises access equipment, said base station end round-trip delay timer retransmitted in said base station end and starts when timer stops;

When said base station end device did not receive from the feedback of ustomer premises access equipment, said base station end expansion round-trip delay timer retransmitted in said base station end and starts when timer stops;

Said base station end expansion round-trip delay timer is when overflowing the feedback that does not receive in the period from ustomer premises access equipment, and said base station end timer is all out of service.

It is 0 o'clock that said user side retransmits residue timer overflow value, and said user side retransmits timer and when said user side round-trip delay timer overflows, starts;

It is not 0 o'clock that said user side retransmits residue timer overflow value, and said user side retransmits the residue timer and when said user side round-trip delay timer or said user side expansion round-trip delay timer overflow, starts; Said user side retransmits timer and when said user side re-transmission residue timer overflows, starts.

Said ustomer premises access equipment receives data from base station end device when being correct data, and said user side timer is all out of service;

When the check of said ustomer premises access equipment was misdata from the data of base station end device, said user side round-trip delay timer retransmitted at said user side and starts when timer stops;

When said ustomer premises access equipment did not receive from the data retransmission of base station end device, said user side expansion round-trip delay timer retransmitted at said user side and starts when timer overflows;

The re-transmission timer that said user side expansion round-trip delay timer is activated is when overflowing the data retransmission that does not receive in the period from base station end device, and said user side timer is all out of service.

Method proposed by the invention is based on DRX (the discontinuous reception of the Discontinous Reception-) mechanism relevant with HARQ in the present LTE system; Through respectively increase at base station end device and ustomer premises access equipment two new timers be implemented in eNB and UE under the signaling mistake synchronously, thereby eliminate the unnecessary waste of influence and the asynchronous data retransmission of the packet loss that part signaling mistake brings to Internet resources.And the energy saving at terminal is not brought big influence, do not increase the maximum delay of bag, only increase the average delay of twice above retransmission packet.

Description of drawings

Through below in conjunction with description of drawings the preferred embodiments of the present invention, will make foregoing of the present invention and other purpose, feature and advantage clearer, wherein:

Fig. 1 is in the prior art, the situation that the PDCCH signaling of data retransmission is lost;

Fig. 2 is in the prior art, and it is the situation of NACK by mistranslation perhaps that the ACK feedback is lost;

Fig. 3 .1 is that prior art does not stop to retransmit in the solution of timer the situation that the PDCCH signaling is lost;

Fig. 3 .2 is that prior art does not stop to retransmit in the solution of timer the situation that no signaling is made mistakes;

Fig. 4 is in the prior art, restarts the solution that retransmits timer;

Fig. 5 .1 is in the technical scheme of the present invention, and eNB holds the apparatus sketch map;

Fig. 5 .2 is in the technical scheme of the present invention, and eNB holds the apparatus flow chart;

Fig. 6 .1 is in the technical scheme of the present invention, and UE holds the apparatus sketch map;

Fig. 6 .2 is in the technical scheme of the present invention, and UE holds the apparatus flow chart;

Fig. 7 is in the technical scheme of the present invention, the performance performance sketch map under the PDCCH signaling loss situation;

Fig. 8 is in the technical scheme of the present invention, and ACK is mistaken as the performance performance sketch map under the NACK signaling error situation;

Fig. 9 is in the technical scheme of the present invention, the performance performance sketch map under the ACK loss situation;

Figure 10 is in the technical scheme of the present invention, and NACK is mistaken as the performance performance sketch map under the ACK signaling error situation;

Figure 11 is in the technical scheme of the present invention, the performance performance sketch map under the NACK loss situation;

Figure 12 is in the technical scheme of the present invention, the performance performance sketch map under the signaling error situation do not occur.

Embodiment

For making the object of the invention, content and advantage clearer, below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.

Provide two new timers that the present invention defines at first, earlier on the basis of the DRX of LTE system mechanism:

1. re-transmission residue timer (DRX Remnant Retransmission Timer): the initial value of this timer is 0, retransmits the residue timer record and retransmits the surplus value of timer in the moment that reception (transmission) data stop;

When this timer overflows, start the re-transmission timer.

2. expand round-trip delay timer (HARQ Extended RTT Timer): the length of this timer is equal to the round-trip delay timer.

Described re-transmission timer, re-transmission residue timer, round-trip delay timer and expansion round-trip delay timer all respectively are provided with a cover at UE end and eNB end; That is the present invention relates to user side and retransmit timer, user side and retransmit that residue timer, user side round-trip delay timer, user side expansion round-trip delay timer and base station end retransmit timer, base station end retransmits residue timer, base station end round-trip delay timer, base station end expansion round-trip delay timer; In embodiment explanation subsequently; For avoiding literal too burdensome; The timer title will be done to simplify and handle; Remove described user side and base station end printed words, for the UE end or for the eNB end, can decide under the timer of specifically mentioning by the main body of concrete operations.

At UE end, when retransmitting timer when overflowing, and this re-transmission timer triggers by overflowing of a round-trip delay timer, then starts this timer, when this timer overflows, starts the re-transmission timer once more.

At eNB end, after sending data retransmission, and the residing re-transmission timer of the transmission of this data retransmission is to be triggered by a round-trip delay timer of failing to receive feedback; Then start this timer, when this timer overflows, if also fail to receive feedback; Perhaps feedback is ACK; Then stop this HARQ process,, then start re-transmission residue timer if receive NACK.

Retransmitting residue timer and expansion round-trip delay timer timing stage, UE need not open wireless transmit/receive units, and promptly in the HARQ process, what the activation stage of UE referred to still only is the stage that retransmits the timer operation.

The present invention also requires retransmitting under the non-vanishing situation of residue timer, at the round-trip delay timer or when expanding the round-trip delay timer and overflowing, starts and retransmits the residue timer, but not retransmit timer.

The method of discontinuous reception mechanism operate as normal under the signaling error situation of a kind of LTE of assurance provided by the present invention system is described below, and detail is following:

The eNB end:

The DRX process that retransmits according to following principle.

1. when sending new data, start corresponding round-trip delay timer and with the re-transmission residue timer zero setting of correspondence.

2. when receiving ACK, stop corresponding round-trip delay timer immediately or expand the round-trip delay timer, stop this HARQ process.Therefore, receive that the incident of overflowing that ACK does not then have again follow-up round-trip delay timer perhaps to expand the round-trip delay timer takes place.

3. when the round-trip delay timer overflows, divide two types of situation to handle:

-round-trip delay timer run duration is received NACK: if re-transmission residue timer is not 0, then start re-transmission residue timer, when re-transmission residue timer overflows, start the re-transmission timer then, otherwise directly start the re-transmission timer.

Select a moment to dispatch UE at re-transmission timer run duration,, restart the round-trip delay timer in the value of this scheduling renewal re-transmission constantly residue timer.

-round-trip delay timer run duration is not received NACK or ACK: if re-transmission residue timer is not 0, then start re-transmission residue timer, when re-transmission residue timer overflows, start the re-transmission timer then, otherwise directly start the re-transmission timer.

Select a moment to dispatch UE at re-transmission timer run duration, the value at this scheduling renewal re-transmission constantly residue timer starts expansion round-trip delay timer.

4. when expansion round-trip delay timer overflows, divide two types of situation to handle:

-expansion round-trip delay timer run duration is received NACK: if re-transmission residue timer is not 0, then startup retransmits the residue timer, and startup retransmits timer when re-transmission residue timer overflows then, otherwise directly starts the re-transmission timer.

-expansion round-trip delay timer run duration is not received NACK or ACK: stop corresponding HARQ process.

5. working as this time re-transmission is the last re-transmission of HARQ process, has retransmitted this HARQ processes that stop again to be feedback such as back.

The UE end:

The DRX process that retransmits according to following principle.

1. when receiving new data, start corresponding round-trip delay timer and with the re-transmission residue timer zero setting of correspondence.

2. if the new data of receiving can draw proper data after decoding, then stop corresponding round-trip delay timer, feeding back ACK also stops this HARQ process.

3. round-trip delay timer or when expanding the round-trip delay timer and overflowing if corresponding re-transmission residue timer is not 0, then starts and retransmits the residue timer, retransmits timer retransmitting to start when the residue timer overflows then, otherwise directly starts the re-transmission timer.

4. when receiving data retransmission, start corresponding round-trip delay timer, stop to retransmit timer, and upgrade re-transmission residue timer.Divide two types of situation to handle then:

The data retransmission that-Ruo receives can draw proper data after decoding, then stop corresponding round-trip delay timer and retransmit timer, and feeding back ACK also stops this HARQ process.

The data retransmission that-Ruo receives is found wrong through the decoding back, then feed back NACK.

5. when the re-transmission timer overflows, divide two types of situation to handle:

It is to be activated or activated by a re-transmission residue timer that is activated by the round-trip delay timer by a round-trip delay timer that-Ruo should retransmit timer, then starts expansion round-trip delay timer.

It is to be activated or be expanded the re-transmission residue timer that court of a feudal ruler timer activates when coming and going by one by an expansion round-trip delay timer to activate that-Ruo should retransmit timer, then stops corresponding HARQ process.

In addition, the present invention provides the device of discontinuous reception mechanism operate as normal under the signaling error situation of a kind of LTE of assurance system, comprising:

Be arranged in the base station,

Retransmit timer, be used for characterizing permission this moment and send the downlink retransmitted data bag;

Retransmit the residue timer, be used to keep with the DRX mechanism of UE synchronously;

The round-trip delay timer is used to write down the minimum transfer time interval (TTI) number of the feedback of UE apart from the packet delivery time;

Expansion round-trip delay timer, the feedback that is used to write down UE is apart from the minimum transfer time interval number of packet delivery time and characterize the state that last retransmission processes is not received the ACK/NACK feedback of UE.

Be arranged in the subscriber equipment,

Retransmit timer, be used to control wireless transmit/receive units and be in opening;

Retransmit the residue timer, be used to keep synchronous with the corresponding sequential of eNB;

The round-trip delay timer is used to write down the minimum transfer time interval (TTI) number of retransmission data packet may due in apart from current time;

Expansion round-trip delay timer is used to write down the retransmission data packet may due in apart from the minimum transfer time interval number of current time and characterize last retransmission processes and do not receive the data retransmission from eNB.

Embodiment 1

Present embodiment specifically describes a kind of non-continuous receiving control method provided by the present invention, comprises the steps:

Said adjustment comprises:

The order of said step 4 and step 5 can be changed.

Said step 4.1 specifically comprises the steps:

Said step 4.1.3 specifically comprises the steps:

Said step 4.1.3.1 specifically comprises the steps:

Said step 4.3 specifically comprises the steps:

Said step 3.2.1 comprises the steps:

Said step 3.2.3 comprises the steps:

Embodiment 2

Present embodiment has specifically described a kind of discontinuous receiving control device provided by the present invention; Comprise that base station end device, ustomer premises access equipment, base station end round-trip delay timer, base station end retransmit timer, user side round-trip delay timer, user side re-transmission timer; It is characterized in that this device comprises that also base station end expansion round-trip delay timer, base station end retransmit residue timer, user side expansion round-trip delay timer, user side re-transmission residue timer;

When said ustomer premises access equipment did not receive from the data retransmission of base station end device, said user side expansion round-trip delay timer retransmitted at said user side and starts when timer overflows.

The re-transmission timer that said user side expansion round-trip delay timer is activated is when overflowing the data retransmission that does not still receive in the period from base station end device, and said user side timer is all out of service.

Embodiment 3

Present embodiment has been described according to the present invention (the embodiment of the DRX control device of for example, eNB) locating in the network terminal base station.

Shown in Fig. 5 .1 and 5.2, the DRX control timer that the place, base station is relevant with the present invention comprises round-trip delay timer, expansion round-trip delay timer, retransmits the residue timer and retransmit timer.When new data is sent in the base station, or after sending data retransmission during the signaling mistake that does not occur as yet discovering the base station, will open a round-trip delay timer.If the signaling mistake that the base station can be discovered occurred, then send the back and open expansion round-trip delay timer in these data.Overflow and receive NACK feedback or do not have feedback at the round-trip delay timer; Or expansion round-trip delay timer receive overflow and receive NACK and feed back after; Activate and retransmit the residue timer, in the running of these three timers, downlink retransmitted data can not be sent in the base station.The re-transmission of downlink data can only occur in the running that retransmits timer (retransmit the residue timer and overflow activations), in case and send downlink retransmitted data then stop corresponding re-transmission timer and restart the round-trip delay timer perhaps expanding the round-trip delay timer.

Embodiment 4

Present embodiment has been described according to the present invention at an embodiment of the DRX of user equipment side control device.

Shown in Fig. 6 .1 and .6.2, the DRX control timer that the UE place is relevant with the present invention comprises round-trip delay timer, expansion round-trip delay timer, retransmits the residue timer and retransmit timer.After UE receives new data or data retransmission, will open a round-trip delay timer, and overflow back startup re-transmission residue timer at it.When retransmitting to start expansion round-trip delay timer when timer overflows first and overflow the back startup at it, UE retransmits the residue timer.Remain in the running of timer with re-transmission at round-trip delay timer, expansion round-trip delay timer, UE can not receive to receive downlink retransmitted data, can get into sleep state and carry out energy-conservation.The re-transmission of downlink data can only occur in the running that retransmits timer (retransmit the residue timer and overflow activations), in case and receive downlink retransmitted data then stop correspondence re-transmission timer and restart the round-trip delay timer.

Embodiment 5

Present embodiment has been described the present invention and has been lost the performance performance under the signaling error situation at PDCCH.

Shown in Fig. 7 .1; After the PDCCH signaling of carrying the data retransmission resource allocation information is lost; UE can't stop the HARQ process; And can retransmit the state that gets into the operation of an expansion round-trip delay timer after timer overflows, start re-transmission timer (, thereby can not restart) subsequently once more because the re-transmission of this moment residue timer is 0.And eNB is after having sent data retransmission; The normal round-trip delay timer that starts owing to when the round-trip delay timer finishes, is not still received any feedback; Therefore after having experienced re-transmission residue timer; Restart the re-transmission timer, select a moment to dispatch UE, and start additional round-trip delay timer.As can be seen from the figure, this moment, the re-transmission timer of eNB and the re-transmission timer of UE are synchronous; Thereby UE can be correct go to receive data, and to the eNB feedback, if data are correctly then feeding back ACK; Finish corresponding HARQ process, eNB also finishes corresponding HARQ process after receiving ACK.

If the data that eNB retransmits process decoding discovery is still wrong, shown in Fig. 7 .2, then feed back NACK; When eNB receives NACK during it expands the timing of round-trip delay timer after; Start re-transmission residue timer once more, and when it overflows, start the re-transmission timer, select a moment to dispatch UE; And startup round-trip delay timer (because previous expansion round-trip delay timer run duration has been received feedback, what therefore this place started is the round-trip delay timer).Equally, UE starts the round-trip delay timer when receiving misdata, and starts re-transmission residue timer once more thereafter, when it overflows, starts to retransmit timer.As can be seen from the figure, retransmit the second time after PDCCH loses, and the re-transmission timer of eNB and the re-transmission timer of UE remain synchronous.

Embodiment 6

As shown in Figure 8, present embodiment has been described the present invention and has been mistaken as the performance performance under the NACK signaling error situation at ACK.After receiving the data feeding back ACK, the UE end stops corresponding HARQ process.And be mistaken as after NACK receives mistake when eNB brings out existing ACK; Because eNB can't receive the feedback information of corresponding data in the PDCCH signaling that passes thereafter; Therefore eNB can select a moment to dispatch UE in the running that retransmits timer, and then starts the round-trip delay timer.Because the round-trip delay timer operation phase is not received feedback, so eNB can after its timing finishes, open the re-transmission timer and select a moment to dispatch UE, then unlatching expansion round-trip delay timer at the residue of unlatching re-transmission thereafter timer once more.Owing to still can't receive feedback in the expansion round-trip delay timer operation phase, therefore eNB stops corresponding HARQ process when expansion round-trip delay timer overflows.

Embodiment 7

Present embodiment has been described the performance performance of the present invention under the ACK loss situation.

As shown in Figure 9, after receiving the data feeding back ACK, the UE end stops corresponding HARQ process.And the eNB end fails to receive this ACK information.In the case, eNB can be according to the unlatching of carrying out the relevant timer of follow-up DRX with the identical process of Fig. 8 and the re-transmission of data.Be mistaken as NACK and ACK loses under these two kinds of signaling error situations at ACK; ENB has just passed the data that once need not retransmit than the DRX mechanism of existing LTE system more among the present invention, and can not occur shown in Figure 2 because the excess waste to resource that causes of re-transmission repeatedly.

Embodiment 8

Present embodiment has been described the present invention and has been mistaken as the performance performance under the ACK signaling error situation at NACK.

Shown in figure 10, the UE end is opened the round-trip delay timer after receiving data feedback NACK.And be mistaken as after ACK receives mistake when eNB brings out existing NACK, stopped corresponding HARQ process.Because UE can not receive data retransmission in the running of thereafter re-transmission timer, therefore can open expansion round-trip delay timer thereafter and open the re-transmission timer finish time once more in its timing.Owing to still can't receive data retransmission for the second time retransmitting the timer operation phase, therefore can when it overflows, stop the HARQ process that responds.

Embodiment 9

Present embodiment has been described the performance performance of the present invention under the NACK loss situation.

Shown in figure 11, eNB starts the re-transmission timer after for the first time data retransmission is not received feedback after having experienced the round-trip delay timer, retransmitting the residue timer, select a moment to dispatch UE.And UE starts the re-transmission timer and receives data in round-trip delay timer, re-transmission residue timer timing end back after the first time, data retransmission fed back NACK.As can be seen from the figure, the opening time of the re-transmission timer of UE and eNB is synchronous this moment, so UE can receive the data retransmission from eNB.

Embodiment 10

Present embodiment has been described the present invention in the performance performance that has no under the signaling error situation.

Shown in figure 12, the UE end starts the round-trip delay timer after receiving misdata, then to eNB end feedback NACK.ENB starts re-transmission residue timer after receiving NACK when its round-trip delay timer finishes, startup retransmits timer when re-transmission residue timer finishes then.Equally, UE starts re-transmission residue timer when its round-trip delay timer finishes, and startup retransmits timer when re-transmission residue timer finishes then.As can be seen from the figure, the startup of the re-transmission timer of eNB and UE remains synchronous constantly.Therefore, if there is not signaling to make mistakes, then expanding the round-trip delay timer does not need to start.Compare with the DRX mechanism of LTE system, can guarantee normal HARQ process equally.Bag to twice or twice above re-transmission can bring the one section extra time-delay that retransmits the residue timer, and this is a deficiency of the present invention, but this time-delay only influences average delay and the time delay that can not have the greatest impact.The maximum delay of retransmission packet remains one and retransmits the length that timer adds a round-trip delay timer each time.

In sum; The present invention is based on present LTE system protocol; Retransmit residue timers and HARQ expansion round-trip delay timer through on the basis of HARQ re-transmission timer and HARQ round-trip delay timer, defining two new timer: HARQ respectively; Can be good at solving DRX mechanism relevant with HARQ in the LTE system in the problem that the signaling error situation exists, comprise the step-out of UE and eNB, activation that the UE receiver is unnecessary and data retransmission are to waste of radio resources.This invention realizes simple, has good using value.

The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and distortion, these improvement and distortion also should be regarded as protection scope of the present invention.

Claims

1. a non-continuous receiving control method is characterized in that, this method comprises the steps:

Said adjustment comprises:

The order of said step 4 and step 5 can be changed.

2. a kind of non-continuous receiving control method as claimed in claim 1 is characterized in that said step 4.1 specifically comprises the steps:

3. a kind of non-continuous receiving control method as claimed in claim 2 is characterized in that said step 4.1.3 specifically comprises the steps:

4. a kind of non-continuous receiving control method as claimed in claim 3 is characterized in that said step 4.1.3.1 specifically comprises the steps:

5. a kind of non-continuous receiving control method as claimed in claim 3 is characterized in that said step 4.3 specifically comprises the steps:

6. a kind of non-continuous receiving control method as claimed in claim 1 is characterized in that said step 3.2.1 comprises the steps:

7. a kind of non-continuous receiving control method as claimed in claim 6 is characterized in that said step 3.2.3 comprises the steps:

8. discontinuous receiving control device; Comprise that base station end device, ustomer premises access equipment, base station end round-trip delay timer, base station end retransmit timer, user side round-trip delay timer, user side re-transmission timer; It is characterized in that this device comprises that also base station end expansion round-trip delay timer, base station end retransmit residue timer, user side expansion round-trip delay timer, user side re-transmission residue timer;

9. a kind of discontinuous receiving control device as claimed in claim 8 is characterized in that, said base station end expansion round-trip delay timer overflows length and equals said base station end round-trip delay timer and overflow length;

10. a kind of discontinuous receiving control device as claimed in claim 9 is characterized in that, it is 0 o'clock that said base station end retransmits residue timer overflow value, and said base station end retransmits timer and when said base station end round-trip delay timer overflows, starts;

11. a kind of discontinuous receiving control device as claimed in claim 10 is characterized in that, when said base station end device received and confirms signaling from being fed back to of ustomer premises access equipment, said base station end timer was all out of service;

12. a kind of discontinuous receiving control device as claimed in claim 9 is characterized in that, it is 0 o'clock that said user side retransmits residue timer overflow value, and said user side retransmits timer and when said user side round-trip delay timer overflows, starts;

13. a kind of discontinuous receiving control device as claimed in claim 12 is characterized in that, said ustomer premises access equipment receives data from base station end device when being correct data, and said user side timer is all out of service;