CN103857056B - The method that random access collision is reduced in the communication network based on machine type communication - Google Patents
The method that random access collision is reduced in the communication network based on machine type communication Download PDFInfo
- Publication number
- CN103857056B CN103857056B CN201210501199.7A CN201210501199A CN103857056B CN 103857056 B CN103857056 B CN 103857056B CN 201210501199 A CN201210501199 A CN 201210501199A CN 103857056 B CN103857056 B CN 103857056B
- Authority
- CN
- China
- Prior art keywords
- base station
- adjusting parameter
- machine type
- time adjusting
- message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of method for being used in the machine type communication user equipment of the communication system based on machine type communication and reducing random access collision, wherein, machine type communication user equipment has Hypomobility.The method includes：By successfully with base station communication when time adjusting parameter be recorded as very first time adjusting parameter；When needing to initiate new Stochastic accessing, Stochastic accessing guide messages are sent to base station；The accidental access response message from base station is received, wherein, accidental access response message includes the second time adjusting parameter；The very first time adjusting parameter that will be recorded compares with the second received time adjusting parameter；If the difference of first, second time adjusting parameter is in predetermined error range, continue to send L2/L3 message to base station；Otherwise to retreat and initiate new Stochastic accessing again again after a scheduled time.Scheme of the invention, the collision detection of active and retrogressing can greatly reduce collision probability and increase access capacity.
Description
Technical field
Communication system the present invention relates to be based on machine type communication, in particular it relates in the communication based on machine type communication
The method for being used to reduce random access collision in system.
Background technology
Machine type communication (Machine Type Communication：MTC it is) in Long Term Evolution LTE (Long Term
Evolution) the new project for introducing in system.The characteristics of many MTC user equipmenies have Hypomobility.Such as water meter, ammeter
Do not move；Infrequently move at mobile station of selling goods；Household health detector is only moved in specific region.
In the prior art, RACH (RandomAccess Channel are used MTC user equipmenies more：RACH) send out
Deliver letters and make and packet.But, the quantity of the MTC user equipmenies in specific region may be very big, therefore based on machine
To face to be increased sharply by the MTC service that may occur in the communication system of device class communication brings RACH to overload.
For example in current standard, the only 64-Ncf available Physical Random Access Channel guiding based on competition
(Preamble), wherein Ncf is the quantity that uncontested RACH is kept for by base station.Thus, in a specific region, such as
The a large amount of MTC user equipmenies of fruit initiate Stochastic accessing process simultaneously, and RACH may be caused crowded.Touched in the event of guiding
Hit, then can cause the user equipment of collision when 2/ layer of 3 (L2/L3) message of their layer is transmitted, in the up time-frequency money of identical
Can also be collided on source.This will cause serious interference, so that in the user equipment for colliding, neither one can be by just
Really decoding, so as to cause the waste of the running time-frequency resource.
RACH overload can influence user to user (Human to Human：H2H communication), thus it is existing
Some methods that random access collision is reduced in the communication system based on machine type communication are proposed in technology.However, these
Method is all to be attempted by reducing the Stochastic accessing of MTC user equipmenies or limitation MTC access capacities are come in preventing wireless access network
RACH overload.And because all of parameter is from the MTC activities of prediction in the method that has pointed out
The statistical parameter of peak value, it is difficult to judge the definite source of overload and set the parameter of adaptability, this will cause the profit of ascending resource
With poor.
The content of the invention
Based on considerations above, if it is possible to propose it is a kind of can reduce MTC user equipmenies Stochastic accessing attempt or
The method that limitation MTC access capacities can just reduce random access collision will be highly profitable.
According to the first aspect of the invention, it is proposed that a kind of machine type communication in the communication system based on machine type communication
The method for being used to reduce random access collision in user equipment, wherein, the machine type communication user equipment has Hypomobility,
Methods described comprises the following steps：A. by successfully with base station communication when time adjusting parameter be recorded as the very first time adjustment ginseng
Number；B. when needing to initiate new Stochastic accessing, Stochastic accessing guide messages are sent to the base station；C. receive and come from the base
The accidental access response message stood, wherein, the accidental access response message includes the second time adjusting parameter；D. will be remembered
The very first time adjusting parameter of record compares with the second received time adjusting parameter；If e. described first, second when
Between adjusting parameter difference continue in predetermined error range, then to the base station send L2/L3 message；Otherwise retreat one pre-
Step b-e is re-executed again after fixing time.
According to one embodiment of the present of invention, second time is used when sending L2/L3 message to the base station
Adjusting parameter is adjusted to the transmission time of the L2/L3 message.
According to one embodiment of the present of invention, also include according to the method for the present invention：Receive from the base station
To the confirmation message of transmitted L2/L3 message；The second time adjusting parameter is recorded as very first time adjusting parameter.
According to the second aspect of the invention, it is proposed that a kind of to be used in the base station of the communication system based on machine type communication
The method for reducing random access collision, wherein, the communication system based on machine type communication includes that multiple has Hypomobility
Machine type communication user equipment, methods described comprises the following steps：Receive from the multiple machine type communication user equipment
Stochastic accessing guide messages；Detect from nearest or in the region nearest apart from the base station apart from the base station
The guide messages of the first machine type communication user equipment；Accidental access response message is sent in a broadcast manner, it is described to connect at random
Entering response message includes the time adjusting parameter corresponding with the first machine type communication user equipment；Receive and decode
From the L2/L3 message of the first machine type communication user equipment.
According to one embodiment of the present of invention, also include according to the method for the present invention：It is logical to first machine type
Credit household's equipment send on it is received, by the first machine type communication user equipment send L2/L3 message really
Recognize information.
According to one embodiment of the present of invention, the machine type communication user equipment with Hypomobility is not move
Dynamic/infrequently move/the machine type communication user equipment that is only moved in specific region.
The collision detection mechanism of active is employed according to the solution of the present invention.The collision detection of active and retrogressing can be significantly
Reduce collision probability and increase access capacity in ground.So as to improve the ROA to resource, and reduce to H2H communication performances
Influence.
Additionally, it is compatible with method of the prior art according to the method for the present invention, can simultaneously be used with other method.
Various aspects of the invention will be become apparent from by the explanation of embodiment in detail below.
Brief description of the drawings
The following detailed description to non-limiting example, other spies of the invention are read by referring to accompanying drawing
Levy, objects and advantages will become more apparent upon.In accompanying drawing：
Fig. 1 is shown according to the network topological diagram of one embodiment of the present of invention；
Fig. 2 is shown according to the method flow graph of an embodiment of the invention.
In figure, through different diagrams, same or similar reference represents same or analogous device (module).
Specific embodiment
In the specific descriptions of following preferred embodiment, by the accompanying drawing with reference to appended by constituting a present invention part.Institute
Attached accompanying drawing has been illustrated by way of example can realize specific embodiment.The embodiment of example is not intended as
Limit all embodiments of the invention.It is appreciated that without departing from the scope of the present invention, it is possible to use other
Embodiment, it is also possible to carry out structural or logicality modification.Therefore, specific descriptions below are simultaneously nonrestrictive, and this
The scope of invention is defined by the claims appended hereto.
Before introducing according to specific embodiment of the invention, the pass having been proposed that in the prior art is introduced first
The method of RACH overload in the communication system based on MTC is reduced.
1) classification blocking solution is accessed
For MTC user equipmenies introduce single access grade, to allow the network to distinctively control to be used from these MTC
The access of family equipment.According to the required granularity controlled MTC user equipmenies, one or several access grades can be introduced.
2) for MTC user equipmenies set single random access channel resource scheme
When MTC user equipmenies and H2H user equipmenies share random access channel resource, their access collision probability phase
Together.Set for MTC user equipmenies and H2H user equipmenies are respectively provided with independent random access channel resource and can reduce MTC user
The standby influence to H2H user equipmenies.But will so the resource of H2H user equipmenies be reduced, and limit the appearance of MTC user equipmenies
Amount.
3) the specific back-off scheme of MTC user equipmenies
The specific back-off scheme of MTC user equipmenies can postpone their Stochastic accessing (again) to be attempted.For MTC user sets
The standby backoff time different with the setting of H2H user equipmenies, the backoff time that for example, MTC user equipmenies are set is more long, is that H2H is used
The backoff time that family equipment is set is shorter.So delay of MTC user equipmenies may be long, and is difficult to judge the source of overload
And be MTC user equipmenies and the suitable backoff time of H2H user equipmenies setting.
4) slot type is accessed
For MTC user equipmenies define access period/access groove, each MTC device is only counted in its special access groove.
Each MTC device is associated by its ID (IMSI) with groove is accessed.In this way, unpredictable simultaneously in the MTC user equipment activity times
And it is consistent in the case of, may cause the efficiency of MTC peak values reduces.
However, on the one hand these methods of the prior art are attempted by reducing the Stochastic accessing of MTC user equipmenies
Or limitation MTC access capacities prevent the overload of the RACH in wireless access network, on the other hand to ascending resource
Using also poor.
Fig. 1 is shown according to the network topological diagram of one embodiment of the present of invention.
Can be used in the communication system based on machine type communication according to the method for the present invention, the communication system includes base station
ENB 10, multiple MTC user equipmenies 21,22, multiple H2H user equipmenies 31,32.
As shown in figure 1, MTC user equipmenies 21 are distant with base station eNB 10, and MTC user equipmenies 22 and base station
ENB's 10 is closer to the distance.Similarly, H2H user equipmenies 31 are distant with base station eNB 10, and H2H user equipmenies 32 with
Base station eNB 10 it is closer to the distance.According to the distance apart from base station eNB 10, from closely to remote sequence, illustrated 4 equipment it is suitable
Sequence is：MTC user equipmenies 22, H2H user equipmenies 32, MTC user equipmenies 21, H2H user equipmenies 31.
For apart from the far and near different equipment in base station 10, propagation delay TPAlso it is different.Accordingly, it would be desirable to introduce time adjustment ginseng
TA (Timing Advance) is counted to compensate propagation delay TPBetween gap so that different user devices send letter
Number can be alignd in base station.
In the prior art, time adjusting parameter TA=2TP, wherein, TPPropagation delay is represented, and depending on user equipment
The distance between with base station.
Because H2H user equipmenies typically have stronger mobility, propagation delay TPCan often change over time, therefore,
For H2H user equipmenies, it is not necessary that storage and propagation delay TPRelated time adjusting parameter TA.
However, the characteristics of many MTC user equipmenies all have Hypomobility.For example water meter, ammeter etc. are installed in fixation
Place, does not move；Infrequently move at mobile station of selling goods；Household health detector is only in the spy of such as home-ranges
Determine to be moved in region.The MTC user equipmenies of these Hypomobilities are not moved or moving range is small, because self-position change will not
Cause time adjusting parameter to change and exceed predetermined threshold.Therefore, it is possible to think, for the MTC user equipmenies of Hypomobility, adjustment
Parameter TA is to maintain constant.According to this embodiment of the invention, MTC user equipmenies 21,22 are with Hypomobility
MTC user equipmenies.
Fig. 2 is shown according to the method flow graph of one embodiment of the present of invention.Below with machine type communication user equipment 21
As a example by the communication process between base station eNB 10, with reference to Fig. 1 and Fig. 2 descriptions according to of the invention based on machine type communication
Communication system is used for the method for reducing random access collision.
First, it is assumed that in once successful Stochastic accessing base station eNB 10 before MTC user equipmenies 21, when corresponding
Between adjusting parameter be TA1.In method and step S201, TA1 is recorded as very first time adjusting parameter by MTC user equipmenies 21.
Then, in method and step S202, MTC user equipmenies 21 when needing to initiate new Stochastic accessing, to base station eNB
10 send Stochastic accessing guide messages.
And in synchronization, MTC user equipmenies 22 also initiate new Stochastic accessing, Stochastic accessing is sent to base station eNB 10
Guide messages, and same steering signal has been used just.
According in one embodiment of the present of invention, Stochastic accessing guiding includes that the instruction MTC user equipmenies will be sent out
The information of the L2/L3 message sizes for sending.
In method and step S203, base station eNB 10 is detected from nearest or in apart from base apart from base station eNB 10
The guide messages of the user equipment stood in eNB 10 nearest region.According to the embodiment shown in Fig. 1, apart from base station eNB
10 nearest or in the region nearest apart from base station eNB 10 user equipmenies are MTC user equipmenies 22.
Then, in method and step S204, base station eNB 10 sends in a broadcast manner in Physical Downlink Shared Channel
Accidental access response message (Random Access Response：RAR), including corresponding with MTC user equipmenies 22
Time adjusting parameter, hereinafter, the time adjusting parameter is referred to as the second adjusting parameter.
According to one embodiment of the present of invention, also include to detected guiding in accidental access response message
Mark, instruction distribute to the information and interim cellular radio temporary mark (Cell- of the ascending resource of L2/L3 message
Radio Network Temporary IdentifierC-RNTI).According to an alternative embodiment of the invention, connect at random
Enter the instruction that can also include in response message to backoff time.
Herein in described embodiment, if MTC user equipmenies 21 are in method and step S205, for being recorded
One time adjusting parameter compares with the second received time adjusting parameter, and determines first, second time adjustment ginseng
Several differences exceeds predetermined error range, then to retreat and re-execute step S202 to S205 again after a scheduled time.
According to one embodiment of the present of invention, predetermined error range corresponds to the granularity of the time adjusted value.
In LTE system, predetermined error range corresponds to 0.52 μ s.And in LTE system, TA can be distinguished with the granularity of 0.52 μ s
Propagation delay in the range of 0-0.67ms, this corresponds to the radius of society of 100km.
According to one embodiment of the present of invention, the scheduled time stepped back is random.According to of the invention another
Also include the instruction to backoff time in individual embodiment, in accidental access response message.
It will be appreciated to those of skill in the art that the time that can also be stepped back according to other rule settings.For example can
It is combined with scheme of the prior art, is the classification of MTC user equipmenies, and for the MTC user equipmenies of each classification set different
Backoff time.For example, the time that the low MTC user equipmenies of priority are stepped back is long, priority MTC user equipmenies high are stepped back
Time is short.
However, according to an alternative embodiment of the invention, while the MTC user equipmenies of random access request are initiated,
The MTC user equipment 22 nearest apart from base station eNB 10 i.e. shown in Fig. 1, in method and step S205, first for being recorded
Time adjusting parameter compares with the second received time adjusting parameter, and determines first, second time adjusting parameter
Difference in predetermined error range, then continue in method and step S206 to base station eNB 10 send L2/L3 message.
According to one embodiment of the present of invention, MTC user equipmenies 22 to base station eNB 10 when L2/L3 message is sent
The ascending resource of L2/L3 message, and the second time adjusting parameter of use are distributed to using base station eNB 10 to the hair of L2/L3 message
The time is sent to be adjusted.
Base station eNB 10 is received in method and step S206 and decodes the L2/L3 message from MTC user equipmenies 22, and
Sent to MTC user equipmenies 22 in method and step S207 and disappeared on L2/L3 that is received, being sent by MTC user equipmenies 22
The confirmation of breath.
MTC user equipmenies 22 return to method and step S201 after confirmation is received, by the second time adjusting parameter
It is recorded as very first time adjusting parameter.
According to other embodiment of the invention, if H2H user equipmenies are sent out recently and simultaneously apart from base station eNB 10
Stochastic accessing is played, the time adjusting parameter included in RAR will be, then MTC user equipment 21 He corresponding with H2H user equipmenies
22 are intended to initiate random access request again again after retrogressing a predetermined time.
Emulation as shown by data, according to the solution of the present invention, can greatly reduce the collision probability of RACH.I.e.
Just in the case where Stochastic accessing guiding collides, scheme of the invention can at least ensure nearest apart from base station
User equipment is remained able to send L2/L3 message using current running time-frequency resource, and L2/L3 is equally produced rather than other methods
The collision of message, so as to improve the utilization of ascending resource, and improves the capacity of MTC user equipmenies.
It should be noted that above-described embodiment is only exemplary, rather than limitation of the present invention.It is any without departing substantially from this hair
The technical scheme of bright spirit all should fall under the scope of the present invention.Additionally, should not be by any accompanying drawing in claim
Mark is considered as the claim involved by limitation；" including " word is not excluded for unlisted dress in other claims or specification
Put or step；" one " before device is not excluded for the presence of device as multiple；In the equipment comprising multiple devices, this is more
The function of one or more in individual device can be realized by same hardware or software module；" first ", " second ", " the 3rd "
Only it is used for representing title Deng word, and is not offered as any specific order.
Claims (15)
1. it is a kind of to be touched for reducing Stochastic accessing in the machine type communication user equipment of the communication system based on machine type communication
The method hit, wherein, the machine type communication user equipment has Hypomobility, and methods described comprises the following steps：
A. by successfully with base station communication when time adjusting parameter be recorded as very first time adjusting parameter；
B. when needing to initiate new Stochastic accessing, Stochastic accessing guide messages are sent to the base station；
C. the accidental access response message from the base station is received, wherein, the accidental access response message includes second
Time adjusting parameter, the second time adjusting parameter is according to nearest or in distance apart from the base station by the base station
The time adjusting parameter that the guidance information of the user equipment in the nearest region in base station determines；
D. the very first time adjusting parameter that will be recorded compares with the second received time adjusting parameter；
If e. the difference of the very first time adjusting parameter and the second time adjusting parameter is in predetermined error range,
Then continue to send L2/L3 message to the base station；Otherwise to retreat and re-execute step b-e again after a scheduled time.
2. method according to claim 1, it is characterised in that in the step e, sends L2/L3 and disappears to the base station
The transmission time of the L2/L3 message is adjusted using the second time adjusting parameter during breath.
3. method according to claim 1, it is characterised in that also include after the step e：
F. the confirmation message to transmitted L2/L3 message from the base station is received；
G. the second time adjusting parameter is recorded as very first time adjusting parameter.
4. method according to claim 1, it is characterised in that the Stochastic accessing guiding in the step b includes instruction
The information of the L2/L3 message sizes.
5. method according to claim 1, it is characterised in that also wrapped in the accidental access response message in the step c
Include the information of the ascending resource for indicating to distribute to L2/L3 message；
And in step e, when L2/L3 message is sent to the base station, using the up money for distributing to L2/L3 message
Source.
6. method according to claim 1, it is characterised in that also wrapped in the accidental access response message in the step c
Include the instruction to backoff time.
7. method according to claim 1, it is characterised in that the machine type communication user equipment with Hypomobility
Be do not move, infrequently move or the machine type communication user equipment that is only moved in specific region.
8. method according to claim 1, it is characterised in that the predetermined error range is adjusted corresponding to the time
The granularity of value.
9. method according to claim 1, it is characterised in that in LTE system, the predetermined error range corresponds to
0.52μs。
10. method according to claim 1, it is characterised in that the scheduled time stepped back is random.
A kind of 11. methods for being used to reduce random access collision in the base station of the communication system based on machine type communication, wherein,
Communication system based on machine type communication includes multiple machine type communication user equipmenies with Hypomobility, methods described bag
Include following steps：
A. the Stochastic accessing guide messages from the multiple machine type communication user equipment are received；
B. detect and set from first user nearest apart from the base station or in the region nearest apart from the base station
Standby guide messages；
C. accidental access response message is sent in a broadcast manner, and the accidental access response message includes being used with described first
The corresponding time adjusting parameter of family equipment；
D. receive and decode the L2/L3 message from the first user equipment.
12. methods according to claim 11, it is characterised in that after the step D, also include：
E. sent on L2/L3 message that is received, being sent by the first user equipment to the first user equipment
Confirmation.
13. methods according to claim 11, it is characterised in that in the accidental access response message in the step C also
The information of the ascending resource including indicating to distribute to L2/L3 message.
14. methods according to claim 11, it is characterised in that in the accidental access response message in the step C also
Including the instruction to backoff time.
15. methods according to claim 11, it is characterised in that the machine type communication user with Hypomobility sets
It is standby be do not move, infrequently move or the machine type communication user equipment that is only moved in specific region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210501199.7A CN103857056B (en) | 2012-11-29 | 2012-11-29 | The method that random access collision is reduced in the communication network based on machine type communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210501199.7A CN103857056B (en) | 2012-11-29 | 2012-11-29 | The method that random access collision is reduced in the communication network based on machine type communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103857056A CN103857056A (en) | 2014-06-11 |
| CN103857056B true CN103857056B (en) | 2017-06-27 |
Family
ID=50864146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210501199.7A Active CN103857056B (en) | 2012-11-29 | 2012-11-29 | The method that random access collision is reduced in the communication network based on machine type communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103857056B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764152B (en) * | 2014-12-19 | 2020-10-27 | 联想(北京)有限公司 | Information processing method and base station |
| CN107046672B (en) * | 2016-02-05 | 2021-11-09 | 中兴通讯股份有限公司 | Random access method and device |
| CN107094281B (en) * | 2017-03-31 | 2021-05-18 | 全球能源互联网研究院 | Access method and system for M2M equipment to access base station |
| CN109729599B (en) * | 2018-12-28 | 2022-09-06 | 芯翼信息科技(上海)有限公司 | Data transmission method and data transmission system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162957A (en) * | 2006-10-12 | 2008-04-16 | 中兴通讯股份有限公司 | Synchronous control method and system for time division multiplex communication system |
| CN102651908A (en) * | 2011-02-28 | 2012-08-29 | 华为技术有限公司 | Method and equipment for transmitting data |
| WO2012131153A1 (en) * | 2011-03-30 | 2012-10-04 | Nokia Corporation | Random access data channel for machine type communications |
-
2012
- 2012-11-29 CN CN201210501199.7A patent/CN103857056B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162957A (en) * | 2006-10-12 | 2008-04-16 | 中兴通讯股份有限公司 | Synchronous control method and system for time division multiplex communication system |
| CN102651908A (en) * | 2011-02-28 | 2012-08-29 | 华为技术有限公司 | Method and equipment for transmitting data |
| WO2012131153A1 (en) * | 2011-03-30 | 2012-10-04 | Nokia Corporation | Random access data channel for machine type communications |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103857056A (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gamage et al. | LMAC: Efficient carrier-sense multiple access for LoRa | |
| CN104540230B (en) | A kind of uplink dispatch method and device | |
| CN102668683B (en) | Network access method and system for machine type communications | |
| CN103857056B (en) | The method that random access collision is reduced in the communication network based on machine type communication | |
| CN106341771B (en) | A kind of D2D resource allocation methods and base station | |
| CN103327637A (en) | Method for randomly accessing secondary cell and method for receiving data | |
| CN106413117A (en) | Wireless communication system, and apparatus and method for base station side and user equipment side | |
| CN107006015B (en) | Method and communication device for communication using spectrum resources | |
| CN106686729A (en) | System broadcast message transmission method and device based on wave beams and system | |
| US20160165378A1 (en) | Ran overload control for m2m communications in lte networks | |
| RU2009120630A (en) | MOBILE COMMUNICATION SYSTEM, MOBILE COMMUNICATION METHOD, BASE STATION AND MOBILE STATION | |
| CN105578610B (en) | A kind of channel access method and equipment | |
| CN109275145A (en) | Equipment behavior detection and barrier processing method, medium and electronic equipment | |
| JP2019509664A (en) | Apparatus and method used in radio communication system, spectrum management apparatus | |
| CN107409304A (en) | It is used for the method and apparatus of calling terminal in wireless communication system | |
| EP3606208A1 (en) | Resource selection method and apparatus, resource allocation method and apparatus, and related storage medium | |
| US20140134984A1 (en) | Method for enhancing machine type communication between a mobile communication network and a machine type communication device | |
| CN107231700B (en) | A kind of method and device of competitive mode random access | |
| CN109076571A (en) | A kind of processing method, base station and terminal controlling information | |
| CN111406426A (en) | Implementation of traffic coexistence for collocated transceivers including bluetooth transceivers | |
| Li et al. | An RSU-coordinated synchronous multi-channel MAC scheme for vehicular ad hoc networks | |
| US20240259045A1 (en) | Method and apparatus for carrying out ultra-wideband communication | |
| CN106376085A (en) | Resource distribution method, transmission method and devices thereof | |
| Pan et al. | Cluster-based group paging for massive machine type communications under 5G networks | |
| CN108307335B (en) | Data transmission method, device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |