CN106332175A

CN106332175A - Method and device for controlling transmission of dual-connection X2 state report and auxiliary base station

Info

Publication number: CN106332175A
Application number: CN201510380018.3A
Authority: CN
Inventors: 赵海鹏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-07-01
Filing date: 2015-07-01
Publication date: 2017-01-11
Also published as: WO2016131323A1

Abstract

The invention provides a method and a device for controlling transmission of a dual-connection X2 state report and an auxiliary base station. The method is applied to the auxiliary base station, and comprises the following steps: receiving an X2 data message sent by a main base station, and judging whether a preset moment when the X2 state report is transmitted to the main base station arrives or not in real time; and when the preset moment when the X2 state report is transmitted arrives, transmitting the X2 state report to the main base station. According to the scheme, transmission control is performed on the X2 state report of the auxiliary base station according to a transmission moment, so that transmission of the X2 state report can be more reasonable, accurate and immediate.

Description

A kind of method, device and prothetic group station controlling the report transmission of dual link X2 state

Technical field

The present invention relates to wireless communication technology field, control the report of dual link X2 state particularly to one and send Method, device and prothetic group station.

Background technology

At present for TDD-FDD Joint Operation (sharing operation of time division duplex-FDD) in standard Mainly having CA (Conditional Access) and dual link two schemes, wherein CA belongs to close coupling, Base-Band Processing The cooperation of aspect, is not suitable for different producer.And dual link scheme supports non-ideal backhual (Double-directional back central link), Need not co-sited, support that different manufacturer interconnects, networking diagram such as Fig. 1.

When core net EPC (Evolved Packet Core, block core evolution) sends data to terminal UE During, first data can arrive dominant base MeNB, and then MeNB can be according to flow control algorithm one Divide or total data message issues prothetic group station by X2 link (a kind of communication link between major-minor base station) SeNB, prothetic group standing-meeting is to MeNB status report i.e. X2DL DATA DELIVERY STATUS (X2 DL data transfer state), the effect of this X2 state report is that notice which message of MeNB has loss needs Retransmitting, the data volume that SeNB needs has much and which message to be successfully sent.

During actual X2 data-message transmission, in standard agreement, accurate description SeNB does not gives The state of MeNB is reported in and sends on what opportunity, if so may result in the report of X2 state to send excessively frequency Numerous meeting seriously takies the bandwidth that X2 link is natively nervous, but if sends and can cause not in time on SeNB Data volume deficiency even stops or on MeNB, stored messages too much overflow packet loss.

Summary of the invention

The technical problem to be solved in the present invention be to provide a kind of control dual link X2 state report send method, Device and prothetic group station, in order to solve existing X2 data message in transmitting procedure, prothetic group station needs to main base Standing status report, in standard agreement, accurate description prothetic group station is not reported in assorted to the state of dominant base Opportunity sends, and the state frequently that so may produce is reported to cause and taken X2 link bandwidth, or shape State report feedback causes storing report on data volume deficiency, even cutout or dominant base on prothetic group station not in time The problem that literary composition too much overflows packet loss cutout.

In order to solve above-mentioned technical problem, the embodiment of the present invention provides one to control the report of dual link X2 state and sends out The method sent, is applied to prothetic group station, including:

Receiving the X2 data message that dominant base sends, real-time judge sends the report of X2 state to described dominant base Default opportunity whether arrive；

When arriving the default opportunity sending the report of X2 state, send X2 state and report to described dominant base.

Further, described method also includes:

When receiving the X2 data message that dominant base sends, the reception shape of X2 data message described in real time record Condition.

Further, described when receiving the X2 data message that dominant base sends, X2 number described in real time record According to message reception situation step particularly as follows:

During receiving the X2 data message that dominant base sends, the X2 data message that detection receives Serial number is the most continuous, if the serial number of described X2 data message is discontinuous, by the number of discontinuous message segment Record value carry out adding 1 counting.

Further, the default opportunity of described transmission X2 state report is: timing time arrives timing；

The step whether the most described judgement arrived to the default opportunity of dominant base transmission X2 state report includes:

During receiving the X2 data message that dominant base sends, always receive the record of time；

Compare always receiving the time with timing in real time, obtain whether the reception time arrives timing Comparative result.

Further, at the X2 data message that described reception dominant base sends, real-time judge is to described dominant base Before the step whether default opportunity of transmission X2 state report arrives, described method also includes:

Receive the request adding described prothetic group station that described dominant base sends；

Resource allocation conditions according to described prothetic group station self, it is judged that whether described request is to allow to be accepted；

If described request allows to be accepted, then set up the status report timer for described request, and arrange The Preset Time of described report timer, described Preset Time is the timing of status report timer.

Further, the default opportunity of described transmission X2 state report is: the note of the number of discontinuous message segment Record value reaches predetermined number；

The most described judgement to dominant base send the report of X2 state default opportunity the step that whether arrives particularly as follows:

The record value of the number of described discontinuous message segment is compared with described predetermined number, is not connected Whether the number of continuous message segment reaches the comparative result of described predetermined number.

Further, the default opportunity of described transmission X2 state report is: receive wireless spread-spectrum technology RLC The state report being properly received described data message of protocol layer feedback；

Monitor whether to receive the state report being properly received described data message of rlc protocol layer feedback in real time.

The embodiment of the present invention provides a kind of and controls the device that the report of dual link X2 state sends, and is applied to prothetic group station, Including:

First judge module, for receiving the X2 data message that dominant base sends, real-time judge is to described main base Whether the default opportunity that transmission X2 state of standing is reported arrives；

Sending module, during for arriving when the default opportunity sending the report of X2 state, sends the report of X2 state To described dominant base.

Further, described device also includes:

Logging modle, when the X2 data message sent at reception dominant base, X2 number described in real time record Reception situation according to message.

Further, described logging modle, specifically for:

Described first judge module includes:

Record unit, during the X2 data message in reception dominant base transmission, when always receiving Between record；

First comparing unit, for comparing always receiving the time with timing in real time, when obtaining receiving Between whether arrive the comparative result of timing.

Further, described device also includes:

Request receiver module, for receiving the request adding described prothetic group station that described dominant base sends；

Second judge module, for the resource allocation conditions according to described prothetic group station self, it is judged that described request Whether it is to allow to be accepted；

Module set up by intervalometer, for when described request allows to be accepted, setting up the shape for described request State report timer, and the Preset Time of described report timer is set, described Preset Time is state report The timing of intervalometer.

Described first judge module includes:

Second comparing unit, for by the record value of the number of described discontinuous message segment and described predetermined number Comparing, whether the number obtaining discontinuous message segment reaches the comparative result of described predetermined number.

Described first judge module includes:

Monitoring means, is properly received described data for monitor whether to receive rlc protocol layer feedback in real time The state report of message.

The embodiment of the present invention provides a kind of prothetic group station, sends including above-mentioned control dual link X2 state report Device.

The invention has the beneficial effects as follows:

Such scheme, by being transmitted controlling to the X2 state report at prothetic group station opportunity according to transmission so that The transmission of X2 state report can more rationally, accurately, in time.

Accompanying drawing explanation

Fig. 1 represents dual link networking structure schematic diagram；

Fig. 2 represents the overview flow chart of the described method of the embodiment of the present invention；

Fig. 3 represents the detailed process of the method for the control dual link X2 state report transmission of the embodiment of the present invention one Figure；

Fig. 4 represents the detailed process of the method for the control dual link X2 state report transmission of the embodiment of the present invention two Figure；

Fig. 5 represents the detailed process of the method for the control dual link X2 state report transmission of the embodiment of the present invention three Figure；

Fig. 6 represents the module knot of the device of the described control dual link X2 state report transmission of the embodiment of the present invention Structure schematic diagram one；

Fig. 7 represents the module knot of the device of the described control dual link X2 state report transmission of the embodiment of the present invention Structure schematic diagram two；

Fig. 8 represents the module knot of the device of the described control dual link X2 state report transmission of the embodiment of the present invention Structure schematic diagram three.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing and specifically real Execute example to describe the present invention.

The present invention is directed to existing X2 data message in transmitting procedure, prothetic group station needs to send shape to dominant base State is reported, in standard agreement, not accurate description prothetic group station is not reported in the state of dominant base and sends out on what opportunity Sending, the state frequently that so may produce is reported to cause and is taken X2 link bandwidth, or state report is anti- Feedback cause on prothetic group station not in time data volume not enough, even on cutout or dominant base stored messages too much and The problem overflowing packet loss cutout, it is provided that a kind of control method, the device and auxiliary that the report of dual link X2 state sends Base station.

As in figure 2 it is shown, the method that the described control dual link X2 state report of the embodiment of the present invention sends, should For prothetic group station, including:

Step 100, receives the X2 data message that dominant base sends, and real-time judge sends to described dominant base Whether the default opportunity of X2 state report arrives；

Step 200, when arriving the default opportunity sending the report of X2 state, sends X2 state and reports to institute State dominant base.

Such scheme of the present invention, by being transmitted controlling to the X2 state report at prothetic group station opportunity according to transmission, Make the transmission that X2 state reports can more rationally, accurately, in time, it is to avoid because the report of X2 state is anti- That presents excessively frequently causes and takies X2 link bandwidth；Or because X2 state report feedback causes not in time On prothetic group station, data volume is not enough even stops or the feelings that on dominant base, stored messages too much overflow packet loss cutout Condition.

It should be noted that, X2 data message is generally transmitted by dominant base according to default form, described The transmission form of X2 data message is as shown in table 1:

The transmission form of table 1X2 data message

Wherein, the described X2 data message of transmission includes: with the PDU Type (association of 1 byte-identifier View data unit type), with the X2-U Sequence Number (X2-U serial number) of two byte-identifiers And the spare extension field of default 0-4 byte.

It should be noted that, when to dominant base feedback X2 state report, the report of described X2 state should be wrapped Reception situation containing X2 data message, therefore in another embodiment of the present invention, described method also includes:

It should be noted that, the described reception situation X2 data message that predominantly prothetic group station receives is the most continuous, If discontinuous, need to feed back to dominant base, so that dominant base resends the X2 data message of loss, because of This, described when receiving the X2 data message that dominant base sends, described in real time record, X2 data message connects The step of receipts situation particularly as follows:

It should be noted that, in the record of the state of reception, record is not only the individual of discontinuous message segment Number, the most also carries out record by the serial number of discontinuous X2 data message.

Such as, the X2 data message receiving sequence of acquiescence should be 1-20, but the actual reception of X2 data message For 1-3,6-9,11-17,20, according to above-mentioned reception situation, the record value of the number of discontinuous message segment is 3, and record discontinuous Serial No.: 4-5,10,18-19.

It should be noted that, the form of described X2 state report is as shown in table 2:

Table 2X2 status report format

Wherein, the described X2 state report of transmission includes: with the identification information of 1 byte-identifier, described Identification information includes identification code (the Final Frame of PDU Type (protocol Data Unit type), last frame Ind) and whether it is packet report (Lost Packet Report) lost；The highest one-tenth of 2 byte-identifiers Merit pays the serial number (Highest successfully delivered PDCP Sequence Number) of PDCH； The size (Desired buffer size for the E-RAB) of buffer area needed for the E-RAB of 4 byte-identifiers； Size (the Minimum desired buffer size for the in the minimal cache district needed for the UE of 4 byte-identifiers UE)；Quantity (the Number of lost X2-U losing X2-U serial number reporting range of 1 byte-identifier Sequence Number ranges reported)；Lose start range (the Start of lost of X2-U serial number X2-U Sequence Number rang) and lose end range (the End of lost X2-U of X2-U serial number Sequence Number range)；Preset the spare extension field of 0-4 byte.

It should be noted that, the default opportunity sending the report of described X2 state can be divided into: timing time arrives Timing, the record value of number of discontinuous message segment reach predetermined number, receive wireless spread-spectrum technology The state three kinds of situations of report being properly received described data message of rlc protocol layer feedback.

In the embodiment of the present invention one, the default opportunity sending the report of described X2 state is: it is fixed that timing time arrives Time the time；

The most described step 100 specifically includes:

In embodiment one, start timing during X2 data message receiving, and real-time by timing time Between compare with timing, when timing time reaches timing, just to dominant base send X2 state Report；It should be noted that, when timing time reaches timing, when dominant base sends the report of X2 state, Prothetic group standing-meeting re-starts the reception timing of X2 data message, and the circulation of this timing course is carried out.

It should be noted that, in order to guarantee to realize smoothly the timing at prothetic group station, the institute of the embodiment of the present invention one Stating method, before described step 100, described method also includes:

Resource allocation conditions according to prothetic group station self, it is judged that whether described request is to allow to be accepted；

In conjunction with above-described embodiment, as it is shown on figure 3, the specific implementation of the embodiment of the present invention one is:

Step 1.1, MeNB sends SeNB and adds request；

Step 1.2, SeNB if it is determined that resource can be received, then can carry out example foundation and configuration status Report timer, it is preferable that the timing of described configuration status accounting intervalometer is defaulted as 5ms；

Step 1.3, SeNB is to MeNB feeding back response information；

Step 1.4, X2 data are persistently sent to SeNB with X2 data message form by MeNB；

Step 1.5, SeNB detection X2 serial number is the most continuous, if discontinuous, records discontinuous message segment Number, and downward message is to RLC (Radio Link Control) protocol layer；Meanwhile, SeNB sentences in real time Disconnected status report timer is the most overtime；

Step 1.6, waiting state report timer time-out, SeNB can send X2 according to the form in table 2 State is reported to MeNB.

In the embodiment of the present invention two, the default opportunity sending the report of described X2 state is: discontinuous message segment The record value of number reaches predetermined number；

The most described step 100 particularly as follows:

In embodiment two, having reached preset value when recording the number obtaining discontinuous message segment, prothetic group station is just Need to send the report of X2 state to dominant base；It should be noted that, when the number of discontinuous message segment reaches pre- If value, when dominant base sends the report of X2 state, prothetic group standing-meeting re-starts X2 data message and discontinuously reports The counting of literary composition section number, the circulation of this counting process is carried out.

As shown in Figure 4, the specific implementation of the embodiment of the present invention two is:

Step 2.1, MeNB sends SeNB and adds request；

Step 2.2, SeNB if it is determined that resource can be received, then can carry out example foundation and configuration status Report timer, it is preferable that the timing of described configuration status accounting intervalometer is defaulted as 5ms；

Step 2.3, SeNB is to MeNB feeding back response information；

Step 2.4, X2 data are persistently sent to SeNB with X2 data message form by MeNB；

Step 2.5, SeNB detection X2 serial number is the most continuous, if discontinuous, records discontinuous message segment Number, and downward message is to rlc protocol layer；Meanwhile, the discontinuous message of SeNB real-time judge record Whether section number is more than or equal to 4；

Step 2.6, when the discontinuous message segment number of record is more than or equal to 4, SeNB can be according to table 2 In form send X2 state and report to MeNB (the loss section carried is 256 to the maximum in X2 state is reported).

In the embodiment of the present invention three, send described X2 state report default opportunity be: receive wireless link Control the state report being properly received described data message of rlc protocol layer feedback；

During it should be noted that, prothetic group stands in the state report receiving rlc protocol layer feedback, then prove X2 Data message success is received by terminal, and now prothetic group station needs to notify the X2 number that success is received by dominant base Delete according to message.

As it is shown in figure 5, the specific implementation of the embodiment of the present invention three is:

Step 3.1, MeNB sends SeNB and adds request；

Step 3.2, SeNB if it is determined that resource can be received, then can carry out example foundation and configuration status Report timer, it is preferable that the timing of described configuration status accounting intervalometer is defaulted as 5ms；

Step 3.3, SeNB is to MeNB feeding back response information；

Step 3.4, X2 data are persistently sent to SeNB with X2 data message form by MeNB；

Step 3.5, SeNB detection X2 serial number is the most continuous, if discontinuous, records discontinuous message segment Number, and downward message is to rlc protocol layer；Meanwhile, detect whether to receive the state of RLC feedback in real time Report；

Step 3.6, when SeNB receives the state report of RLC feedback, can send according to the form in table 2 X2 state is reported to MeNB.

It should be noted that prothetic group station in aforementioned manners both can should only have been passed through by embodiment one, embodiment two Or the mode of embodiment three reports described X2 state to report；Can also embodiment one and embodiment two and deposit, real Execute example one and embodiment three and deposit or embodiment two and embodiment three mode deposited report described X2 state Report；Can also include that the mode described in embodiment one, embodiment two and embodiment three reports simultaneously simultaneously Described X2 state is reported；It should be noted that, specifically select which kind of compound mode, need shape according to the actual requirements Condition is formulated.

It should be noted that, such scheme of the present invention, the duration configuration of state report can be according to different system Realization carry out, so so that timer duration is more reasonable；And state report timing sends fully profit The form specified by current agreement is carried out, and does not results in the situation that there is the report of a large amount of state in link, will not Take too much X2 link bandwidth.

Corresponding to said method, as shown in Figure 6, the embodiment of the present invention also provides for a kind of control dual link X2 shape The device that state report sends, is applied to prothetic group station, including:

First judge module 110, for receiving the X2 data message that dominant base sends, real-time judge is to described Dominant base sends whether the default opportunity of X2 state report arrives；

Sending module 120, when arriving the default opportunity sending the report of X2 state, is used for sending X2 state Report is to described dominant base.

Alternatively, as it is shown in fig. 7, on the basis of above-described embodiment, described device also includes:

Logging modle 101, when the X2 data message sent at reception dominant base, described in real time record The reception situation of X2 data message.

Specifically, described logging modle 101 particularly as follows:

Specifically, the default opportunity of described transmission X2 state report is: timing time arrives timing；

Described first judge module 110 includes:

Alternatively, as shown in Figure 8, described device also includes:

Request receiver module 102, for receiving the request adding described prothetic group station that described dominant base sends；

Second judge module 103, for the resource allocation conditions according to prothetic group station self, it is judged that described request is No for allowing to be accepted；

Module 104 set up by intervalometer, if described request allows to be accepted, then sets up the state for described request Report timer, and the Preset Time of described report timer is set, described Preset Time is that state report is fixed Time device timing.

Specifically, the default opportunity of described transmission X2 state report is: the record of the number of discontinuous message segment Value reaches predetermined number；

Described first judge module 110 includes:

Second comparing unit, for comparing the record value of the number of described discontinuous message segment with preset value Relatively, whether the number obtaining discontinuous message segment reaches the comparative result of preset value.

Specifically, the default opportunity of described transmission X2 state report is: receive wireless spread-spectrum technology RLC The state report being properly received described data message of protocol layer feedback；

Described first judge module 110 includes:

It should be noted that, above-mentioned control dual link X2 state report send device functional module generally with Software mode realizes, and is integrated in the central control chip of base station.

It should be noted that this device embodiment is the device corresponding with said method, the institute of said method There is implementation all be applicable to this device embodiment, also can reach technique effect same as mentioned above.

It should be noted that, be provided with the prothetic group station of said apparatus, connect by the X2 data message according to self The opportunity sending the report of X2 state is controlled by receipts situation so that the transmission of X2 state report can be more Rationally, accurately, in time.

Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary people of the art For Yuan, some improvements and modifications can also be made under without departing from principle premise of the present invention, these Improvements and modifications are the most within the scope of the present invention.

Claims

1. control the method that the report of dual link X2 state sends, be applied to prothetic group station, it is characterised in that Including:

Method the most according to claim 1, it is characterised in that described method also includes:

Method the most according to claim 2, it is characterised in that described receive dominant base send During X2 data message, the step of the reception situation of X2 data message described in real time record particularly as follows:

4. according to the method described in any one of claim 1-3, it is characterised in that described transmission X2 state Report default opportunity be: timing time arrive timing；

Method the most according to claim 4, it is characterised in that send at described reception dominant base X2 data message, whether real-time judge arrived to the default opportunity of described dominant base transmission X2 state report Before step, described method also includes:

Method the most according to claim 3, it is characterised in that it is pre-that described transmission X2 state is reported If being opportunity: the record value of the number of discontinuous message segment reaches predetermined number；

7. according to the method described in any one of claim 1-3, it is characterised in that described transmission X2 state Report default opportunity be: receive wireless spread-spectrum technology rlc protocol layer feedback be properly received described data The state report of message；

8. control the device that the report of dual link X2 state sends, be applied to prothetic group station, it is characterised in that Including:

Device the most according to claim 8, it is characterised in that described device also includes:

Device the most according to claim 9, it is characterised in that described logging modle, specifically for:

11. devices described in-10 any one according to Claim 8, it is characterised in that described transmission X2 shape State report default opportunity be: timing time arrive timing；

Described first judge module includes:

12. devices according to claim 11, it is characterised in that described device also includes:

13. devices according to claim 10, it is characterised in that the report of described transmission X2 state Default opportunity is: the record value of the number of discontinuous message segment reaches predetermined number；

Described first judge module includes:

14. devices described in-10 any one according to Claim 8, it is characterised in that described transmission X2 shape State report default opportunity be: receive wireless spread-spectrum technology rlc protocol layer feedback be properly received described number Report according to the state of message；

Described first judge module includes:

15. 1 kinds of prothetic group stations, it is characterised in that include the control as described in any one of claim 8 to 14 The device that the report of dual link X2 state sends.