CN102611542A - Data retransmission method and data retransmission device - Google Patents
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Abstract
The invention provides a data retransmission method and a data retransmission device. The data retransmission method includes: starting a timer to time a preset time if successful base station switching is monitored; before the preset time is terminated, when a status report transmitted by a receiving end is received, processing retransmitted data according to the status report, and transmitting the processed retransmitted data to a receiving end node; and if the status report transmitted by the receiving end is still not received when the preset time is terminated, transmitting the retransmitted data to the receiving end node. The data retransmission method and the data retransmission device have the advantage that data retransmission effect is greatly enhanced by means of setting of the timer and combination of status report receiving conditions.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of data repeating method and device.
Background technology
Switching is the critical function that cell mobile communication systems must have; In LTE (Long Term Evolution, Long Term Evolution) system, be in Radio Resource control (Radio Resource Control; Abbreviation RRC) subscriber equipment (the User Equipment of connection status; Be called for short UE), all have only an evolved base station (evolved Node B is called for short eNB) service to be provided at any time for it.
Network control is adopted in the switching of LTE system, the switching mode that UE is auxiliary.The measurement report that source eNB sends according to UE; The switch decision criterion of adopt setting is after if judgements need start handoff procedure to UE, according to the current service conditions of UE and the signal(l)ing condition of each adjacent eNB; Confirm the target eNB of switching for UE; Send handoff request (handover request) message to target eNB then, request target eNB switches preparation, and sends switching command to UE.The switching command that receives eNB transmission in source as UE just can start hand-off execution process, and disconnection is connected with source eNB's, initiates to insert at random to target eNB, sets up uplink synchronous.
In above-mentioned hand-off execution process, after UE receives the switching command that source eNB sends, UE will break off and being connected of source eNB, and prepare to insert target eNB, the interruption of the transfer of data between UE and source eNB at this moment.When transfer of data was interrupted, UE packet that eNB successfully receives from the source and source eNB discontinuous situation possibly occur from the packet that UE successfully receives.In order to guarantee the integrality of transfer of data, the LTE system supports the data retransmission mechanism, and; After switching completion, receiving terminal node can tell which packet of sender node successfully to receive to the sender node status report; Sender node will no longer retransmit the packet that receiving terminal node has successfully received according to the indication of status report, wherein, and for up channel; Sender node is UE, and receiving terminal node is eNB, for down channel; Sender node is a target eNB, and receiving terminal node is UE.
In the LTE system, sender node adopts the mode of status report to carry out data re-transmission can have two kinds of implementations: a kind of is that the status report that must receive receiving terminal node carries out the data transmission again; Another kind of mode is not need the wait state report just directly to send data, when receiving status report, deletes the packet of repetition again according to the indication of status report.First kind of implementation can avoid repeating to send the wasting of resources that packet causes; But the transmission delay of channel status decision status report; Also determination data is transmitted the time of interrupting simultaneously, in case status report is lost in the transmission course of eating dishes without rice or wine, will cause transfer of data to interrupt fully.Because the LTE system bandwidth is big, data transmission rate is high, and second kind of implementation possibly produce a large amount of non-essential data re-transmission, causes the bigger wasting of resources.
Summary of the invention
The present invention provides a kind of data repeating method and device, switches back data re-transmission effect to improve the base station.
First aspect of the present invention provides a kind of data repeating method, comprising:
If monitor the base station handover success, then start the timing that timer carries out Preset Time;
Before said Preset Time finishes; When receiving the status report of receiving terminal node transmission; Then data retransmission is handled according to said status report; Send the data retransmission after handling to said receiving terminal node, wherein, the data message of said status report in order to indicate said receiving terminal node successfully to receive;
When said Preset Time finishes, do not receive the status report that said receiving terminal node sends yet, then send said data retransmission to said receiving terminal node.
Another aspect of the present invention provides a kind of data re-transmission device, comprising:
Timer starts module, is used for then starting the timing that timer carries out Preset Time if monitor the base station handover success;
First retransmission module; Be used for before said Preset Time finishes; When receiving the status report of receiving terminal node transmission, then data retransmission is handled according to said status report, send the data retransmission after handling to said receiving terminal node; Wherein, the data message of said status report in order to indicate said receiving terminal node successfully to receive;
Second retransmission module is used for when said Preset Time finishes, not receiving the status report that said receiving terminal node sends yet, then sends said data retransmission to said receiving terminal node.
Can know that by technique scheme the data repeating method that first aspect of the present invention provides is if monitor the base station handover success; Then start the timing that timer carries out Preset Time, before Preset Time finishes, when receiving status report; Then data retransmission is handled, sent the data retransmission after handling to receiving terminal node, when Preset Time finishes according to status report; Do not receive status report yet, then send data retransmission to receiving terminal node.Through the setting of timer and combining of status report reception condition; On the one hand, during the status report that can before timer expiry, receive, data retransmission is handled according to this status report; Avoided the unnecessary wasting of resources; On the other hand, can be at timer expiry but when not receiving the situation of this status report, directly carry out the generation of data retransmission; Avoided having improved the base station greatly and having switched back data re-transmission effect because status report transmissions is delayed time long or lost the transfer of data interruption that causes.
The timer that another aspect of the present invention provides starts module if monitor the base station handover success, then starts the timing that timer carries out Preset Time, and first retransmission module is before Preset Time finishes; When receiving status report; Then first retransmission module is handled data retransmission according to status report, sends the data retransmission after handling to receiving terminal node, when Preset Time finishes; Do not receive status report yet, then second retransmission module sends data retransmission to receiving terminal node.Through the setting of timer and combining of status report reception condition; On the one hand, during the status report that can before timer expiry, receive, data retransmission is handled according to this status report; Avoided the unnecessary wasting of resources; On the other hand, can be at timer expiry but when not receiving the situation of this status report, directly carry out the generation of data retransmission; Avoided having improved the base station greatly and having switched back data re-transmission effect because status report transmissions is delayed time long or lost the transfer of data interruption that causes.
Description of drawings
The data repeating method flow chart that Fig. 1 provides for the embodiment of the invention;
A kind of data re-transmission apparatus structure sketch map that Fig. 2 provides for the embodiment of the invention;
The another kind of data re-transmission apparatus structure sketch map that Fig. 3 provides for the embodiment of the invention.
Embodiment
In practical application, the handoff procedure of LTE system specifically can for:
UE communicates under the control of source eNB at first, and source eNB generates the measurement configuration information and sending according to the region limits information in the UE context and gives UE, so that UE is carried out measurement configuration.Measurement configuration message specifically can comprise object, reporting measurement reports mode (based on Event triggered or periodic triggers) and the relevant configured parameter that UE need measure.UE carries out measurement and report according to the measurement configuration information that source eNB sends, and supplies source eNB to carry out switch decision.
The measurement report that source eNB sends according to UE according to preset switch decision criterion, if judgements need start handoff procedure to UE, according to the current service conditions of UE and the signal(l)ing condition of each adjacent eNB, is the target eNB that UE confirms switching then.Send handoff request (handover request) message to target eNB, request target eNB switches preparation.Handoff request message is drawn together the information such as wireless resource configuration and wireless resource management information of wireless access capability information, the source eNB of UE.
After target eNB receives handoff request message,, will admit control according to the qos requirement of the corresponding radio bearer of request access UE in order to increase the probability of success of switching.If target eNB can provide corresponding resource for the UE that request inserts, then allow this UE to be linked into target eNB.After admitting control to accomplish; Target eNB is sent the affirmation message (handover request ack) of handoff request message to source eNB; Comprising one in this acknowledge message, to need source eNB (be switching command to the message elements that UE transmits; Handover command); Comprise UE in the switching command and switch to the parameter information that target eNB need be used, as: sub-district-Radio Network Temporary Identifier (C-RNTI), random access resource information, wireless resource configuration, security algorithm and parameter configuration etc. that UE uses when in target eNB, receiving data.Source eNB sends this switching command to UE.
The switching command that receives eNB transmission in source as UE just can start hand-off execution process, and disconnection is connected with source eNB's, initiates to insert at random to target eNB, sets up uplink synchronous.In the handoff procedure, when UE inserts to target eNB at random, can adopt access at random, perhaps based on non-competing access at random based on competition.After UE successfully is linked into target eNB through random access procedure, will send RRC to target eNB and connect reprovision completion (RRC Conn.Reconf.Complete) message, begin proper communication between UE and the target eNB.
After UE and target eNB began normal communication process, target eNB need be to mobile management entity (Mobility Management Entity is called for short MME) transmit path conversion request, the current conversion of notice this UE of MME the sub-district.MME sends the user plane update inquiry information to gateway (Service Gate Way is called for short S-GW) after receiving the path conversion request that target eNB sends, and request S-GW changes to target eNB with the downlink path of UE.Receive the path conversion request acknowledge message of MME transmission when target eNB after, with notification source eNB handover success, so that the UE contextual information of source eNB source of release eNB storage.Source eNB discharges the respective resources that UE takies after receiving notification message.So far, handover success.
Behind the handover success, at data feedback channel, sender node UE carries out data re-transmission to the receiving terminal node target eNB, and at down going channel, the sender node target eNB is carried out data re-transmission to receiving terminal node UE.Sender node is carried out data re-transmission to the data repeating method that receiving terminal node adopts present embodiment to provide.
The data repeating method flow chart that Fig. 1 provides for the embodiment of the invention.As shown in Figure 1; The data repeating method that present embodiment provides specifically can be applied to the follow-up evolution of LTE or LTE (Long Term Evolution Advanced; Be called for short LTE-A) etc. in the system, UE successfully carries out sender node after switch the base station to the data re-transmission process of receiving terminal node.The data repeating method that present embodiment provides can be carried out through the data re-transmission device, and this data re-transmission device can be arranged in the sender node.
The data repeating method that present embodiment provides specifically comprises:
Step 10, if monitor the base station handover success, then start the timing that timer carries out Preset Time;
Particularly; Because the transfer of data that handoff procedure causes is interrupted; Source eNB will receive incomplete data and not have to confirm that sending successful data forwarding to UE gives target eNB from UE, be submitted to S-GW and will send the no successful data of transmission to UE again after making target eNB after receiving the data that UE resends, form continuous data.The data retransmission of UE receiving target eNB after switching completion is formed continuous data, to confirming that not sending successful data to source eNB sends to target eNB again.
If monitor the base station handover success, the data re-transmission device starts timer, to realize the timing of Preset Time.Situation such as this Preset Time can cover according to wireless network, network load are come concrete the setting.To the sender node status report, this status report is in order to the data conditions that successfully receives of indication receiving terminal node behind handover success for receiving terminal node.
Before this Preset Time finishes; Before being timer expiry; Receive the status report that receiving terminal node sends, then trigger the data conditions that has successfully received according to the receiving terminal node of indicating in this status report, data retransmission is handled; Specifically can be for the part deletion that the data of indicating with status report in the data retransmission are repeated, to avoid the transmission of repeating data.
When Preset Time finished, promptly timer expiry did not receive this status report yet, then all data retransmissions was all directly sent to receiving terminal node.
It should be noted that step 20 and step 30 for to the performed step of status report different received situation, do not have inevitable sequential relationship.
The data repeating method that present embodiment provides if monitor the base station handover success, then starts the timing that timer carries out Preset Time; Before Preset Time finishes, when receiving status report, then data retransmission is handled according to status report; Send the data retransmission after handling to receiving terminal node; When Preset Time finishes, do not receive status report yet, then send data retransmission to receiving terminal node.Through the setting of timer and combining of status report reception condition; On the one hand, during the status report that can before timer expiry, receive, data retransmission is handled according to this status report; Avoided the unnecessary wasting of resources; On the other hand, can be at timer expiry but when not receiving the situation of this status report, directly carry out the generation of data retransmission; Avoided having improved the base station greatly and having switched back data re-transmission effect because status report transmissions is delayed time long or lost the transfer of data interruption that causes.
In the present embodiment, data retransmission is handled according to status report in the step 20 specifically can comprise the steps:
Confirm the data that receiving terminal node has successfully received according to status report, the part deletion with the data that successfully received with receiving terminal node in the data retransmission repeat generates the data retransmission after handling.
Further, in the present embodiment, this data repeating method also comprises:
Step 40, acquisition time information, status report successfully receive distribution figure and loopback delay information; Successfully receive distribution figure and loopback delay information generation Preset Time according to temporal information, status report; Wherein, temporal information in order to indication from the base station handover success to the time interval that receives for the first time status report.
Temporal information specifically receives the time interval of status report to the first time in order to indication base station handover success; This time that receives status report for the first time is for receive for the first time the time of status report in theory; When promptly the transmission of existence report is not disturbed or under the situation of losing, should receive the time of status report for the first time.Status report successfully receives the distribution situation of distribution figure in order to time of indicating successful receiving state report; Can add up the time that successfully receives status report; Successfully receive distribution figure to form this status report; The content that this status report successfully receives among the distribution figure for example is: status report sends the probability that is successfully received for the first time, and status report sends the probability that is successfully received for the second time, by that analogy.For example; UE switches to eNB2 from eNB1; UE is during as sender node, and the status report that gets access to successfully receives distribution figure in order in the indication Preset Time in the past, switches to the distribution situation of time of all UE success receiving state reports of eNB2 from eNB1; ENB2 is during as sender node; The status report that gets access to successfully receives distribution figure in order in the indication Preset Time in the past, after all UE switch to eNB2 from eNB1, and the distribution situation of the time of eNB2 success receiving state report.This Preset Time specifically can be provided with according to the optimization situation of network.This status report successfully receives distribution figure and can be generated by the eNB statistics; Also can in network, be provided for each node in the network is successfully received the statistic device that time of status report adds up, successfully receive distribution figure to generate status report.
As UE during as sender node, UE can obtain required status report from eNB2 or statistic device and successfully receive distribution figure.In practical application, also can successfully receive distribution figure, temporal information and loopback delay information according to the required status report of UE and generate this Preset Time, and this Preset Time is sent to UE, so that UE carries out timing according to this Preset Time by eNB2.
When sender node within a certain period of time correctly during receiving state report, can feed back negative response (Negative Acknowledge is called for short NAK) to receiving terminal node, receiving terminal node resends status report again.Loopback delay (HARQ RTT) information is sender node and sends NAK to the time that should receive status report next time.The transmission number of times of NAK specifically is not more than data service media access control layer (Medium Access Control, MAC) the automatic repeat requests of mixing of layer configuration (Hybrid Automatic Repeat Request is called for short HARQ) maximum retransmission.
Successfully receive distribution figure and loopback delay information generates Preset Time according to above-mentioned temporal information, status report, make being provided with of Preset Time combine the actual conditions of network, improve the reasonability that Preset Time is provided with.
Preferably, in the present embodiment, successfully receive distribution figure and loopback delay information generation Preset Time, comprising according to temporal information, status report:
Successfully receive distribution figure according to status report and confirm that status report sends number of times, use following formula and generate Preset Time:
Preset Time=T1+ (N-1) * T2;
Wherein, T1 express time information, N representes that status report sends number of times, T2 representes loopback delay information.
Is example with UE as sender node, and the setting up procedure of the Preset Time of present embodiment is elaborated.
Behind the handover success of base station; UE sends Handover complete message to target eNB; The propagation delay time of eating dishes without rice or wine that the Handover complete message that UE sends to target eNB is experienced is about 1ms; The processing delay that target eNB receives behind this Handover complete is about 3ms, and target eNB is about 1ms to the propagation delay time of eating dishes without rice or wine of first status report that UE sends.Then the base station handover success is about 5ms to the time interval that receives for the first time status report, and promptly time information is 5ms.
Target eNB receives Handover complete message, to the UE status report.If UE fails correctly to receive this packet, can feed back NAK to target eNB, so this status report will be retransferred, 1 loopback delay is approximately 8ms.If target eNB all is successfully received at the N time to the status report packet major part that UE sends, then Preset Time is 5+ (N-1) * 8ms.
A kind of data re-transmission apparatus structure sketch map that Fig. 2 provides for the embodiment of the invention.As shown in Figure 2, the data re-transmission device that present embodiment provides specifically can be realized each step of the data repeating method that any embodiment of the present invention provides, and this repeats no more.
The data re-transmission device that present embodiment provides comprises that specifically timer starts module 11, first retransmission module 12 and second retransmission module 13.Timer starts module 11 and is used for then starting the timing that timer carries out Preset Time if monitor the base station handover success.First retransmission module 12 is used for before Preset Time finishes; When receiving the status report of receiving terminal node transmission; Then data retransmission is handled according to status report; Send the data retransmission after handling to receiving terminal node, wherein, the data message that status report has successfully received in order to the indication receiving terminal node.Second retransmission module 13 is used for when Preset Time finishes, and does not receive the status report that receiving terminal node sends yet, then sends data retransmission to receiving terminal node.
The data re-transmission device that present embodiment provides, timer start module 11 if monitor the base station handover success, then start the timing that timer carries out Preset Time; Before Preset Time finished, when receiving status report, then first retransmission module 12 was handled data retransmission according to status report; Send the data retransmission after handling to receiving terminal node; When Preset Time finishes, do not receive status report yet, then second retransmission module 13 sends data retransmission to receiving terminal node.Through the setting of timer and combining of status report reception condition; On the one hand, during the status report that can before timer expiry, receive, data retransmission is handled according to this status report; Avoided the unnecessary wasting of resources; On the other hand, can be at timer expiry but when not receiving the situation of this status report, directly carry out the generation of data retransmission; Avoided having improved the base station greatly and having switched back data re-transmission effect because status report transmissions is delayed time long or lost the transfer of data interruption that causes.
The another kind of data re-transmission apparatus structure sketch map that Fig. 3 provides for the embodiment of the invention.As shown in Figure 3; In the present embodiment; First retransmission module 12 can also be used for confirming the data that receiving terminal node has successfully received according to status report that the part deletion with the data that successfully received with receiving terminal node in the data retransmission repeat generates the data retransmission after handling.
Further, in the present embodiment, this data re-transmission device specifically can also comprise Preset Time generation module 14.Preset Time generation module 14 is used for acquisition time information, status report and successfully receives distribution figure and loopback delay information; Successfully receive distribution figure and loopback delay information generation Preset Time according to temporal information, status report; Wherein, temporal information in order to indication from the base station handover success to the time interval that receives for the first time status report.Successfully receive distribution figure and loopback delay information generates Preset Time according to temporal information, status report, make being provided with of Preset Time combine the actual conditions of network, improve the reasonability that Preset Time is provided with.
In the present embodiment, Preset Time generation module 14 also is used for successfully receiving distribution figure according to status report and confirms that status report sends number of times, uses following formula and generates Preset Time:
Preset Time=T1+ (N-1) * T2;
Wherein, T1 express time information, N representes that status report sends number of times, T2 representes loopback delay information.
Data repeating method that the embodiment of the invention provides and device go in the LTE system, and UE successfully carries out sender node after switch the base station to the data re-transmission processing procedure of receiving terminal node, but the present invention is not as limit.Those skilled in the art should be understood that; Data repeating method that the embodiment of the invention provides and device can also be applied to for example LTE-A system or other system; This system is in the handoff procedure of base station; After UE and source base station broke off and being connected, the direct-cut operation that connects with target BS more all can cause the discontinuous situation of the data that receive.
And because the bandwidth of LTE or LTE-A system is bigger, data repeating method that the embodiment of the invention provides and device are used said system, and the raising that can bring considerable wireless resource utility efficiency also provides direction for expanding the network optimization.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (8)
1. a data repeating method is characterized in that, comprising:
If monitor the base station handover success, then start the timing that timer carries out Preset Time;
Before said Preset Time finishes; When receiving the status report of receiving terminal node transmission; Then data retransmission is handled according to said status report; Send the data retransmission after handling to said receiving terminal node, wherein, the data message of said status report in order to indicate said receiving terminal node successfully to receive;
When said Preset Time finishes, do not receive the status report that said receiving terminal node sends yet, then send said data retransmission to said receiving terminal node.
2. data repeating method according to claim 1 is characterized in that, according to said status report data retransmission is handled, and comprising:
Confirm the data that said receiving terminal node has successfully received according to said status report,, generate the data retransmission after the said processing the part deletion that the data that successfully received with said receiving terminal node in the said data retransmission repeat.
3. data repeating method according to claim 1 and 2 is characterized in that, also comprises:
Acquisition time information, status report successfully receive distribution figure and loopback delay information; Successfully receive distribution figure and said loopback delay information generates said Preset Time according to said temporal information, said status report; Wherein, said temporal information in order to indication from the base station handover success to the time interval that receives for the first time status report.
4. data repeating method according to claim 3 is characterized in that, successfully receives distribution figure and said loopback delay information generates said Preset Time according to said temporal information, said status report, comprising:
Successfully receive distribution figure according to said status report and confirm that status report sends number of times, uses following formula and generates said Preset Time:
Said Preset Time=T1+ (N-1) * T2;
Wherein, said T1 representes said temporal information, and N representes that said status report sends number of times, and T2 representes said loopback delay information.
5. a data re-transmission device is characterized in that, comprising:
Timer starts module, is used for then starting the timing that timer carries out Preset Time if monitor the base station handover success;
First retransmission module; Be used for before said Preset Time finishes; When receiving the status report of receiving terminal node transmission, then data retransmission is handled according to said status report, send the data retransmission after handling to said receiving terminal node; Wherein, the data message of said status report in order to indicate said receiving terminal node successfully to receive;
Second retransmission module is used for when said Preset Time finishes, not receiving the status report that said receiving terminal node sends yet, then sends said data retransmission to said receiving terminal node.
6. data re-transmission device according to claim 5; It is characterized in that: said first retransmission module also is used for confirming the data that said receiving terminal node has successfully received according to said status report; With the part deletion that the data that successfully received with said receiving terminal node in the said data retransmission repeat, generate the data retransmission after the said processing.
7. according to claim 5 or 6 described data re-transmission devices, it is characterized in that, also comprise:
The Preset Time generation module; Be used for acquisition time information, status report and successfully receive distribution figure and loopback delay information; Successfully receive distribution figure and said loopback delay information generates said Preset Time according to said temporal information, said status report; Wherein, said temporal information in order to indication from the base station handover success to the time interval that receives for the first time status report.
8. data re-transmission device according to claim 7 is characterized in that:
Said Preset Time generation module also is used for successfully receiving distribution figure according to said status report and confirms that status report sends number of times, uses following formula and generates said Preset Time:
Said Preset Time=T1+ (N-1) * T2;
Wherein, said T1 representes said temporal information, and N representes that said status report sends number of times, and T2 representes said loopback delay information.
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| WO2018202029A1 (en) * | 2017-05-04 | 2018-11-08 | 华为技术有限公司 | Method and apparatus for sending code block group |
| CN110351799A (en) * | 2019-07-03 | 2019-10-18 | 武汉虹信通信技术有限责任公司 | Control method and base station in the handoff procedure of base station |
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| CN1859763A (en) * | 2006-02-10 | 2006-11-08 | 华为技术有限公司 | Method for improving block data unit transmitting efficiency in cell switch process |
| CN101888675A (en) * | 2009-05-14 | 2010-11-17 | 中兴通讯股份有限公司 | Cross-base station switching method and system in long term evolution system |
| CN102281120A (en) * | 2010-06-08 | 2011-12-14 | 鼎桥通信技术有限公司 | Signaling sending method, network side equipment and user equipment |
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| CN104170461A (en) * | 2014-04-02 | 2014-11-26 | 华为技术有限公司 | Data transmission method and base station |
| WO2015149299A1 (en) * | 2014-04-02 | 2015-10-08 | 华为技术有限公司 | Data transmission method and base station |
| CN104170461B (en) * | 2014-04-02 | 2018-10-19 | 华为技术有限公司 | Data transmission method and base station |
| WO2018202029A1 (en) * | 2017-05-04 | 2018-11-08 | 华为技术有限公司 | Method and apparatus for sending code block group |
| CN108809533A (en) * | 2017-05-04 | 2018-11-13 | 华为技术有限公司 | The method and apparatus for sending encoding block group |
| CN108809533B (en) * | 2017-05-04 | 2021-01-29 | 华为技术有限公司 | Method and device for transmitting coding block group |
| CN110351799A (en) * | 2019-07-03 | 2019-10-18 | 武汉虹信通信技术有限责任公司 | Control method and base station in the handoff procedure of base station |
| CN110351799B (en) * | 2019-07-03 | 2021-04-27 | 中信科移动通信技术有限公司 | Control method in base station switching process and base station |
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