CN101801100A - Method and device for activating configuration in LTE system - Google Patents
Method and device for activating configuration in LTE system Download PDFInfo
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- CN101801100A CN101801100A CN 201010118380 CN201010118380A CN101801100A CN 101801100 A CN101801100 A CN 101801100A CN 201010118380 CN201010118380 CN 201010118380 CN 201010118380 A CN201010118380 A CN 201010118380A CN 101801100 A CN101801100 A CN 101801100A
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Abstract
The embodiment of the invention relates to a method for activating configuration in an LTE system in the field of communication, which comprises the following steps of: constructing activation or deactivation information and carrying the activation or deactivation information in downlink physical control channel (PDCCH) signaling; and sending the PDCCH signaling to user equipment through a PDCCH so as to make the user equipment correspondingly activate or deactivate the configuration according to the activation or deactivation information in the PDCCH signaling. The embodiment of the invention also provides a device for activating the configuration. In the embodiment of the invention, the user equipment is informed to activate or deactivate the corresponding configuration through the downlink physical control channel signaling, so that a network side and the user equipment can synchronously activate/deactivate the corresponding configuration, not only uplink resources can be saved, but also uplink interference among different user equipment can be reduced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the method and the device that activate configuration in a kind of LTE system.
Background technology
Mixing automatic repeat requests (HARQ, Hybrid Automatic Repeat Request) technology is the error correction method that automatic request retransmission (ARQ, automatic repeat request) and forward error correction combine.The sign indicating number that transmitting terminal sends not only can error detection, and has certain error correcting capability.The receiving terminal decoder is at first checked error situation after receiving code word, if in the error correcting capability of sign indicating number, then carry out error correction automatically, if number of errors has exceeded error correcting capability, then receiving terminal sends a decision signal by feedback channel to transmitting terminal, requires transmitting terminal to retransmit.
The HARQ system introduces a forward error correction subsystem in the ARQ system, this forward error correction subsystem is used for correcting the error of transmission of appearance to reduce number of retransmissions, mistake in the error correcting capability scope is corrected, and the transmitting terminal that requires that exceeds the error correcting capability scope is retransmitted.
The HARQ technology can and Adaptive Modulation and Coding (AMC, Adaptive Modulation andCoding) combine with resolution system cover and capacity between contradiction, eliminate and disturb, the elevator system capacity.Because become when the HARQ technology can compensate wireless mobile channel well and multipath fading to the influence that signal transmits, become one of key technology in the Long Term Evolution (LTE, Long Term Evolution).The LTE system adopts the HARQ re-transmission policy that retransmits (IR, Incremental Redundancy) mechanism based on steadily increase redundancy.
The moment according to the re-transmission generation is distinguished, and HARQ can be divided into synchronously and asynchronous two classes.Synchronous HARQ is meant that the transmission (re-transmission) of a HARQ process is to occur in the fixing moment, because receiving terminal is the generation moment of known transmission in advance, therefore do not need extra signaling consumption to indicate the sequence number of HARQ process, this moment, the sequence number of HARQ process can obtain from subframe numbers; Asynchronous HARQ is meant that the transmission (re-transmission) of a HARQ process can take place at any time, and receiving terminal is not known the generation transmitted constantly in advance, so the processing sequence number of HARQ process need send together with data.In the LTE system, the asynchronous HARQ of descending employing, up employing synchronous HARQ.Frequency Division Duplexing (FDD) (FDD, Frequency DivisionDuplex) feedback (ACK/NACK) of receiving terminal 4 TTI transmission ascending HARQs after receiving upstream data transmission indication in the LTE system, and the re-transmission of transmitting terminal 4 TTI transmission HARQ after receiving the NACK feedback, this FDD LTE ascending HARQ sequential schematic diagram is as shown in Figure 1.
In the LTE system, be in the user terminal of cell edge, because user's ascending power is limited, a Radio Link control Service Data Unit (RLC SDU, Radio Link Control Service DataUnit) need be divided into several ability and correctly transmit.But the branch block operations of rlc layer brings extra header overhead, and is divided into the probability of miscarriage of justice that a plurality of HARQ processes have improved the ACK/NACK feedback.Therefore the mechanism that has designed a kind of TTI Bundling in the LTE system guarantees that the user of cell edge covers.
TTI Bundling mechanism is that 1 lasting 4 TTI of uplink scheduling indication that issues are effective; The different redundancy versions (being followed successively by 0,2,3,1) of each TTI transmission digital coding piece; HARQ feedback zero-time regularly is last TTI of TTI bundling.
Reconfiguration message by L3 in the prior art is configured the TTI Bundling mechanism (activation TTI Bundling) of whether using, and the reconfiguration course of LTE agreement comes into force at present, do not support entry-into-force time (activationary time) of reshuffling, just UE uses the parameter (parameter activation) of reconfigure command immediately after receiving the network side reconfigure command, can not be in reconfigure command time of activating of designated parameter.
The inventor is in realizing process of the present invention, and the LTE agreement of discovery prior art is reshuffled the mechanism of coming into force and had following shortcoming at least:
Because the LTE system can't specify the activation time, so the time of knowing UE activation TTI Bundling configuration that eNB can't be definite, just the TTI Bundling activation of eNB and UE can't be synchronous fully; And the sequential of the feedback of TTI Bundling and re-transmission is different with common ascending HARQ, not only can cause losing or the waste of ascending resource of uplink data frames if activation TTI Bundling is asynchronous, and might cause phase mutual interference between the UE, cause the HARQ process transmission failure of other a plurality of UE.
Summary of the invention
The embodiment of the invention provides method and the device that activates configuration in a kind of LTE system.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides the method that activates configuration in a kind of LTE system, comprising:
Structure activates or deexcitation information, and described activation or deexcitation information are carried in the downlink physical control channel PDCCH signaling;
Send described PDCCH signaling to subscriber equipment by PDCCH, so that described subscriber equipment is according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.
The embodiment of the invention provides a kind of activation inking device, comprising:
The information structuring unit is used for structure and activates or deexcitation information, and described activation or deexcitation information are carried in the downlink physical control channel PDCCH signaling;
Transmitting element is used for sending described PDCCH signaling to subscriber equipment by PDCCH, so that described subscriber equipment is according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.
The technical scheme that is provided by the invention described above embodiment as can be seen, the embodiment of the invention activates by downlink physical control channel indication subscriber equipment or deexcitation is disposed accordingly, network side and subscriber equipment can synchronous activation be disposed accordingly, can not only save up resource, also can reduce the uplink interference between the different user devices.
Description of drawings
Fig. 1 is a prior art FDD LTE ascending HARQ sequential schematic diagram;
Fig. 2 is the method flow diagram that activates configuration in the one embodiment of the invention LTE system;
Fig. 3 activates the inking device structural representation for one embodiment of the invention;
Fig. 4 activates information structuring cellular construction schematic diagram in the inking device for one embodiment of the invention;
Fig. 5 is an one embodiment of the invention LTE system configuration schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, be understandable that described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
One embodiment of the invention provides the method that activates configuration in a kind of LTE system, comprises the steps:
Step 10: structure activates or deexcitation information, and described activation or deexcitation information are carried in the downlink physical control channel PDCCH signaling;
Step 11: send described PDCCH signaling to subscriber equipment by downlink physical control channel, so that described subscriber equipment is according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.
The method of the described activation configuration of present embodiment activates by downlink physical control channel signaling subscriber equipment or the deexcitation configuration, network side and subscriber equipment can synchronous activation be disposed accordingly, can not only save up resource, also can reduce the uplink interference between the different user devices.
Another embodiment of the present invention provides the method that activates configuration in a kind of LTE system, and as shown in Figure 2, this method comprises the steps:
Step 20: structure activates or deexcitation information, and described activation or deexcitation information are carried in the PDCCH signaling;
The described structure that the embodiment of the invention provides activates or deexcitation information, with described activation or deexcitation information the method in the PDCCH signaling of being carried on include but not limited to following any:
1) increases in the PDCCH signaling whether expression activates or the field of deexcitation, represent to activate or deexcitation by the different values of described field;
For example, in uplink scheduling indication (UL Grant), increase the field TTI BundlingIndicator of 1bit, represent whether this transmission is TTI Bundling; Can make that TTI Bundling Indicator value is to represent to activate TTI Bundling at 1 o'clock, value is to represent deexcitation TTI Bundling at 0 o'clock.
The form of uplink scheduling indication is as follows in the LTE agreement:
-Flag?for?format0/format1?A?differentiation-1?bit
-Hopping?flag-1?bit
-Resource?block?assignment?and?hopping?resource?allocation -
bits
-For?PUSCH?hopping：
-NUL_hop?MSB?bits?are?used?to?obtain?the?value?of
bits?provide?the?resource?allocation?of?the?first
slot?in?the?UL?subframe
-For?non-hopping?PUSCH：
bits?provide?the?resource?allocation?in?the?UL?subframe
-Modulation?and?coding?scheme?and?redundancy?version-5bits
-New?data?indicator-1bit
-TPC?command?for?scheduled?PUSCH-2bits
-Cyclic?shift?for?DM?RS-3bits
-UL?index-2bits(this?field?is?present?only?for?TDD?operation?with?uplink-downlink?configuration?0)
-Downlink?Assignment?Index(DAI)-2bits(this?field?is?present?only?forTDD?operation?with?uplink-downlink?configurations?1-6)
-CQI?request-1?bit
-
TTI Bundling Indicator-1 bit(the indication bit that the embodiment of the invention is newly-increased).Present embodiment is that example describes with activation or deexcitation TTI Bundling only.
Be understandable that if need indication simultaneously to activate or other configurations of deexcitation, can increase then whether a plurality of described expressions activate or the field of deexcitation, each field is represented to activate or a kind of configuration of deexcitation.For example, need indication to activate TTI Bundling and ACK Repetition simultaneously, then increase by two fields such as TTI Bundling Indicator and ACK Repetition Indicator simultaneously, each field 1bit.
2) in the PDCCH signaling, specify some field combination, represent to activate or a kind of configuration of deexcitation by the different values of described field combination;
More described field combination can be the combination of non-common field in the agreement.
Be example still, for example, make Modulation and codingscheme and redundancy version=30 with activation or deexcitation TTI Bundling, CQI request=1, NPRB＜=3 expressions activate;
Modulation and coding scheme and redundancy version=31, CQI request=1, NPRB＜=3 expression deexcitations;
Wherein, NPRB is derived out by Resource block assignment and hopping resource allocation territory.
Be understandable that, can indicate the activation or the deexcitation of other configurations, or the different values of the combination by same field are indicated the activation or the deexcitation of other configurations with the combination of other field.
3) use independent PDCHH signaling indication to activate or deexcitation;
For example,
This signaling uses the user ID of LTE agreement use or special user ID to carry out scrambling, and a kind of embodiment signaling format is as follows:
-activation sign--1bit, (this sign can have a plurality of, and each sign is used to indicate activation or the different configuration of deexcitation)
-redundant field (Optional Field) adopts fixing value, is used for check.In order to increase reliability--the n bit of signaling transmission, n can require value according to achieved reliability.N=5 for example, fixedly value is " 11111 ".
Perhaps, and for example,
N user is divided into user's group, and the user uses an index to represent in group, gives one of each user's set of dispense " user's group id ", and promptly each user can use unique (user's group id, index in the group) to distinguish.
This signaling uses " user's group id " to carry out scrambling, and signaling format is as follows:
-user activation sign 1, user's activation sign 2 ..., user's activation sign n ..., user's activation sign N--has N bits altogether, and index is user's activation sign of the user of n in n the corresponding group of bit;
-redundant field (Optional Field) adopts fixing value, is used for check.In order to increase reliability--the n bit of signaling transmission, n can require value according to achieved reliability.N=5 for example, fixedly value is " 11111 ".
4) using special user ID that the PDCCH signaling is carried out scrambling represents to activate or deexcitation.
Described special user ID comprises the user ID that is different from existing LTE agreement use, represents to activate or deexcitation by using special user ID that the PDCCH signaling is carried out scrambling.
For example, the uplink scheduling indication form that activates TTI Bundling after the scrambling is different with the uplink scheduling indication form after the normal scrambling, represents activation TTI Bundling by the field in the special uplink scheduling indication form.The uplink scheduling indication form that wherein activates TTI Bundling just before carrying out activation or deexcitation TTI Bundling, activates the uplink scheduling indication form of TTI Bundling by the configuration of RRC signaling after base station and the UE negotiation configuration scrambling.
Described activation or deexcitation information comprise: whether activates or deexcitation, and activation or deexcitation time.
Described activation or deexcitation time comprise: the entry-into-force time of the PDCCH signaling of agreement regulation; Or the entry-into-force time of the PDCCH signaling of agreement regulation adds the time of delay of allocation activation.
Comprise the time of delay of described allocation activation: the time of delay of the allocation activation of agreement appointment or the time of delay of user configured allocation activation.
Step 21: send described PDCCH signaling to subscriber equipment by PDCCH, so that described subscriber equipment is according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.
The base station sends the described PDCCH signaling of activation or deexcitation information of having carried to subscriber equipment by downlink physical control channel, subscriber equipment can be according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration, whether just understand this transmission according to this activation or deexcitation information activates or the deexcitation relevant configuration, if need to carry out activate or the corresponding configuration operation of deexcitation, then according to activating or the deexcitation time carries out and activates or deexcitation is disposed accordingly.
The corresponding configuration of described activation of the embodiment of the invention or deexcitation includes but not limited to: activate or deexcitation TTI Bundling, and/or, activate or deexcitation ACK Repetition, described ACK Repetition is the mechanism that a kind of UE repeats to send the HARQ feedback in the LTE system, is used to improve the reliability of HARQ feedback.Mode and the TTI Bundling of configuration and activation ACK Repetition are similar in present agreement, equally also exist the configuration of eNB and UE can not be fully the problem of activation synchronously, the asynchronous consequence of bringing is that the HARQ feedback between the different user interferes with each other or the waste of the up feedback resources of HARQ.At activating or deexcitation ACK Repetition, can with the activation of structure or deexcitation information-bearing in the descending scheduling indication, send to subscriber equipment by downlink physical control channel.
Be understandable that the range of application of the embodiment of the invention is not limited to TTI Bundling and ACK Repetition, other configurations of carrying out activation or deexcitation synchronously for needs based on the principle of the embodiment of the invention are suitable for too.
Embodiment of the invention base station activates by PDCCH signaling subscriber equipment or deexcitation is disposed accordingly, network side and subscriber equipment can synchronous activation be disposed accordingly, can not only save up resource, also can reduce the uplink interference between the different user devices.
Further embodiment of this invention provides a kind of activation inking device, and as shown in Figure 3, this activation inking device comprises:
Information structuring unit 30 is used for structure and activates or deexcitation information, and described activation or deexcitation information are carried in the PDCCH signaling;
Transmitting element 31 is used for sending described PDCCH signaling to subscriber equipment by PDCCH, so that described subscriber equipment is according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.
As shown in Figure 4, described information structuring unit 30 may further include:
The 3rd subelement 303 uses independent PDCHH signaling indication to activate or deexcitation; Or
The 4th subelement 304 uses special user ID that the PDCCH signaling is carried out scrambling and represents to activate or deexcitation.
The described activation inking device of the embodiment of the invention can be positioned at the base station, or link to each other with the base station, dispose accordingly by downlink physical control channel indication subscriber equipment activation or deexcitation, network side and subscriber equipment can synchronous activation be disposed accordingly, can not only save up resource, also can reduce the uplink interference between the different user devices.
Further embodiment of this invention provides a kind of LTE system, and this system comprises as shown in Figure 5: subscriber equipment 50 and activate inking device 51;
Described activation inking device 51 is used for structure and activates or deexcitation information, described activation or deexcitation information is carried in the PDCCH signaling, and sends described PDCCH signaling to subscriber equipment by PDCCH; The structure of described activation inking device is with reference to figure 3,4 and corresponding explanation.
Described subscriber equipment 50 is used to receive described PDCCH signaling, according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.Described activation inking device is positioned at network side and links to each other with the base station, or directly is arranged in the base station.
This subscriber equipment 50 can according to activation or the deexcitation time be carried out activation or deexcitation is disposed accordingly.Described activation or deexcitation time comprise: the entry-into-force time of the PDCCH signaling of agreement regulation; Or the entry-into-force time of the PDCCH signaling of agreement regulation adds the time of delay of allocation activation.Comprise the time of delay of described allocation activation: the time of delay of the allocation activation of agreement appointment or the time of delay of user configured allocation activation.
The corresponding configuration of described activation of the embodiment of the invention or deexcitation includes but not limited to: activates or deexcitation TTI Bundling, or, activate or deexcitation ACK Repetition.At activating or deexcitation TTIBundling, described PDCCH signaling is the uplink scheduling indication; At activating or deexcitation ACKRepetition, described PDCCH signaling is the descending scheduling indication.
The described activation inking device of the embodiment of the invention activates by downlink physical control channel indication subscriber equipment or deexcitation is disposed accordingly, network side and subscriber equipment can synchronous activation be disposed accordingly, can not only save up resource, also can reduce the uplink interference between the different user devices.
In sum, the embodiment of the invention activates by downlink physical control channel indication subscriber equipment or deexcitation is disposed accordingly, network side and subscriber equipment can synchronous activation be disposed accordingly, can not only save up resource, also can reduce the uplink interference between the different user devices.
One of ordinary skill in the art will appreciate that, realize that all or part of step in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer-readable recording medium, for example read-only memory (being called for short ROM), random access memory (being called for short RAM), disk, CD etc.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. activate the method that disposes in a LTE system, it is characterized in that, comprising:
Structure activates or deexcitation information, and described activation or deexcitation information are carried in the downlink physical control channel PDCCH signaling;
Send described PDCCH signaling to subscriber equipment by PDCCH, so that described subscriber equipment is according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.
2. the method for claim 1 is characterized in that, described structure activates or deexcitation information, described activation or deexcitation information is carried in the PDCCH signaling comprise:
Increase in the PDCCH signaling whether at least one expression activates or the field of deexcitation, represent to activate or deexcitation by the different values of described field; Or
In the PDCCH signaling, specify some field combination, represent to activate or a kind of configuration of deexcitation by the different values of described field combination; Or
Use independent PDCCH signaling indication to activate or deexcitation; Or
Using special user ID that the PDCCH signaling is carried out scrambling represents to activate or deexcitation.
3. method as claimed in claim 2 is characterized in that, describedly increases in the PDCCH signaling whether at least one expression activates or the field of deexcitation comprises:
Each field is represented to activate or a kind of configuration of deexcitation.
4. the method for claim 1 is characterized in that, described activation or deexcitation information comprise:
Activate or the deexcitation time.
5. method as claimed in claim 4 is characterized in that, described activation or deexcitation time comprise:
The entry-into-force time of the PDCCH signaling of agreement regulation; Or
The entry-into-force time of the PDCCH signaling of agreement regulation adds the time of delay of allocation activation.
6. method as claimed in claim 5 is characterized in that, comprises the time of delay of described allocation activation:
The time of delay of the allocation activation of agreement appointment or the time of delay of user configured allocation activation.
7. as each described method in the claim 1 to 6, it is characterized in that described activation or deexcitation comprise: activate or deexcitation TTI Bundling, and/or, activate or deexcitation ACKRepetition.
8. method as claimed in claim 7 is characterized in that, at activating or deexcitation TTIBundling, described PDCCH signaling is the uplink scheduling indication; At activating or deexcitation ACKRepetition, described PDCCH signaling is the descending scheduling indication.
9. one kind is activated inking device, it is characterized in that, comprising:
The information structuring unit is used for structure and activates or deexcitation information, and described activation or deexcitation information are carried in the downlink physical control channel PDCCH signaling;
Transmitting element is used for sending described PDCCH signaling to subscriber equipment by PDCCH, so that described subscriber equipment is according to the activation in the described PDCCH signaling or corresponding activation of deexcitation information and executing or deexcitation configuration.
10. device as claimed in claim 9 is characterized in that, described information structuring unit further comprises:
First subelement increases in the PDCCH signaling whether expression activates or the field of deexcitation, represents to activate or deexcitation by the different values of described field; Or
Second subelement is specified some field combination in the PDCCH signaling, represent to activate or deexcitation by the different values of described field combination; Or
The 3rd subelement uses independent PDCHH signaling indication to activate or deexcitation; Or
The 4th subelement uses special user ID that the PDCCH signaling is carried out scrambling and represents to activate or deexcitation.
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| CN102055576A (en) * | 2010-12-29 | 2011-05-11 | 大唐移动通信设备有限公司 | Method and device for determining HARQ (Hybrid Automatic Repeat request) mode |
| WO2012155546A1 (en) * | 2011-08-16 | 2012-11-22 | 中兴通讯股份有限公司 | Method and system for controlling uplink closed loop transmit diversity |
| CN103384177A (en) * | 2012-05-02 | 2013-11-06 | 华为技术有限公司 | Data packet transmission method and system, user equipment and base station |
| CN103687019A (en) * | 2012-09-25 | 2014-03-26 | 电信科学技术研究院 | A method and an apparatus for updating time division duplex TDD uplink and downlink configuration |
| CN108391284A (en) * | 2012-01-27 | 2018-08-10 | 三菱电机株式会社 | Mobile communication system |
| CN109429323A (en) * | 2017-06-30 | 2019-03-05 | 中国电信股份有限公司 | TTI-B activation deactivates synchronous methods, devices and systems |
| CN109429324A (en) * | 2017-06-30 | 2019-03-05 | 中国电信股份有限公司 | Realize TTI-B activation, deactivated method, system and base station |
| CN112583534A (en) * | 2019-09-29 | 2021-03-30 | 大唐移动通信设备有限公司 | Method for sending and receiving signaling, network equipment and terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102055576A (en) * | 2010-12-29 | 2011-05-11 | 大唐移动通信设备有限公司 | Method and device for determining HARQ (Hybrid Automatic Repeat request) mode |
| WO2012089034A1 (en) * | 2010-12-29 | 2012-07-05 | 大唐移动通信设备有限公司 | Method and apparatus for determining harq mode |
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| CN103384177B (en) * | 2012-05-02 | 2017-06-20 | 华为技术有限公司 | Data pack transmission method and system, user equipment and base station |
| CN103384177A (en) * | 2012-05-02 | 2013-11-06 | 华为技术有限公司 | Data packet transmission method and system, user equipment and base station |
| WO2014048155A1 (en) * | 2012-09-25 | 2014-04-03 | 电信科学技术研究院 | Method and device for updating time division duplex uplink/downlink configuration |
| CN103687019A (en) * | 2012-09-25 | 2014-03-26 | 电信科学技术研究院 | A method and an apparatus for updating time division duplex TDD uplink and downlink configuration |
| CN109429323A (en) * | 2017-06-30 | 2019-03-05 | 中国电信股份有限公司 | TTI-B activation deactivates synchronous methods, devices and systems |
| CN109429324A (en) * | 2017-06-30 | 2019-03-05 | 中国电信股份有限公司 | Realize TTI-B activation, deactivated method, system and base station |
| CN109429324B (en) * | 2017-06-30 | 2021-03-05 | 中国电信股份有限公司 | Method, system and base station for realizing TTI-B activation and deactivation |
| CN109429323B (en) * | 2017-06-30 | 2021-06-25 | 中国电信股份有限公司 | Method, device and system for activating and deactivating synchronization of transmission time interval-B (TTI-B) |
| CN112583534A (en) * | 2019-09-29 | 2021-03-30 | 大唐移动通信设备有限公司 | Method for sending and receiving signaling, network equipment and terminal |
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Application publication date: 20100811 |