CN104105176B - The method for being used to access in machine type communication - Google Patents
The method for being used to access in machine type communication Download PDFInfo
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- CN104105176B CN104105176B CN201310117031.0A CN201310117031A CN104105176B CN 104105176 B CN104105176 B CN 104105176B CN 201310117031 A CN201310117031 A CN 201310117031A CN 104105176 B CN104105176 B CN 104105176B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000011664 signaling Effects 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 9
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000000873 masking effect Effects 0.000 description 8
- 238000005562 fading Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides the method for being used to access in machine type communication.On the one hand, user equipment, downlink channel quality information for access threshold value is variable thresholding (20,22,24), wherein, the variable thresholding can be reduced and reduced with the remaining time of the transmission delay timer of the user equipment.This aspect can reduce threshold value so that user equipment is accessed before the timer expires, it is to avoid accessed in the case where most deteriorating for the continuous worsening situation of channel conditions before transmission delay timer expires.On the other hand, the threshold value of the downlink channel quality information for being used to access of the user equipment is to rely on the operating characteristic according to the user equipment, improves specific aim and flexibility that user equipment is accessed, the performance with optimization.
Description
Technical field
The present invention relates to radio communication, more particularly to machine type communication (Machine Type Communication).
Background technology
3GPP is it was agreed that in machine type communication (Machine Type Communication, abbreviation MTC) enhancing
In new research.One important subject under discussion is the transmission under more excellent covering situation.In RAN solutions, set in user
It is the output based on SA2 when standby (UE) is accessed, there is defined transmission delay timer and down channel quality
Threshold value.Before transmission delay timer expires, when actual down channel quality meets the threshold value, the user equipment is sent
Access request is to access the network.Also, when the transmission delay timer expires, no matter now actual down channel quality
How, the user equipment accesses the network.But, in the transmission delay timer in, channel quality may continue
Decline so that channel quality when transmission delay timer expires is simultaneously bad.SA2 shows that user equipment can be in transmission delay
Timer is accessed before expiring, but how to access not specific solution.
The content of the invention
User equipment typically measures and transmitted operation by the transmission delay timer.If transmission delay mistake
It is long, the user equipment may lose connect and need again initiating random access procedure carry out new transmission.This
In the case of, the user equipment can measure downstream signal, such as downlink reference signal, and estimate in the case of FDD up letter
Road quality.And if keeping connection status using some methods, the up letter such as using longer timer or using SRS
Order, obtaining up channel situation can be easier, but the transmission of up signaling needs to consume power.Present invention is primarily concerned with
MTC device.The required time of measuring of the work that is allowed depends on delay timer, and the timer depends on the QoS of business,
The present invention is not improved in itself to timer, therefore is repeated no more.
What vehicle-mounted MTC device was subjected to is typical mobile channel.Because channel measurement needs certain time, measurement delay or
For high reliability, it is impossible to which rapid decay is tracked, the rapid decay is shown greatly millisecond and changed for unit.By building
Masking attenuation change is slow enough caused by thing and trees.And because masking decay is relevant with environment, therefore it is for up-downgoing
For be related.Therefore, it is possible to realize up channel fading gain by measuring down channel.Cover the change of decay
It can be modeled by a lognormal random process and its rate of change, the rate of change is to rely on user equipment
The decorrelation time of translational speed.If it is known that the translational speed of the user equipment, such as in some industrial MTC user equipmenies
The stabilization of its speed, then the stand-by period needed for certain fading channel gain is obtained under certain confidence level is to be counted
Calculate.Or, waiting time is generally estimated based on average speed.Based on 3GPP ETU370 channel models, masking
Decay G is drawn in Fig. 1 with time T change.It can be seen that, masking fading gain has can be up to 14dB twice, be for the first time
At 10.5 seconds, when being 139 seconds for the second time.At this moment, required transimission power is most desirably 1/25.If user equipment can
Wait long enough for, then channel has higher probability to be optimal situation, thus the user equipment is possible to what is obtained
Gain is also higher.Therefore, it is possible to reasonably consider, transmission delay timer was remembered with minute, and measurement period was remembered with the second.
These configurations can also the demand based on QoS.
It is described in 3GPP TS 23.887, user equipment needs to be connect immediately at the end of transmission delay timer
Enter.Because channel conditions may be continuous worsening, so should have necessarily with regard to carrying out access before transmission delay timer expires
Advantage.However, it is very difficult to estimate whether and how channel quality deteriorates, expired so should be avoided in transmission delay timer
When just accessed.In order to reduce this risk, it is necessary to certain technical scheme.
The inventive concept of the present invention is, is the threshold value that user device configuration is changed over time, starts just, uses one
Compare high threshold value, to strive for access when channel quality is more excellent as far as possible；After when one section, if can not still access, then
Using one than relatively low conservative threshold value, to improve the access probability of user equipment, it is to avoid delay to delay timer arrive always
Have to be accessed under the channel conditions deteriorated very much during the phase.
Connect in the first aspect of the invention there is provided a kind of user equipment that configured in the base station of machine type communication
The method entered, it is characterised in that comprise the following steps：I. determine the user equipment, for access down channel quality believe
The variable thresholding of breath, wherein, the variable thresholding can be with the remaining time reduction of the transmission delay timer of the user equipment
Reduction；Ii. the variable thresholding is sent to the user equipment by signaling.
This aspect of the invention can be for the continuous worsening situation of channel conditions, before transmission delay timer expires
Reduce threshold value so that user equipment is accessed before the timer expires, it is to avoid accessed in the case where most deteriorating.
Preferably, the invention also provides the several of the variable thresholding implement.The variable thresholding includes following any
Type：
A. it is equal to first threshold before first time point of the variable thresholding in transmission delay timer, then equal to second
Threshold value；
B. be equal to the first threshold before first time point of the variable thresholding in transmission delay timer, it is then linear under
Drop, is equal to Second Threshold after the second time point；
C. it is equal to the first threshold before first time point of the variable thresholding in transmission delay timer, then roll-offs,
It is equal to Second Threshold after the second time point.
Simulation result shows that the variable thresholding of this several types can significantly decrease the power consumption needed for access.
For type b and type c, 2/3 or even 3/4 power can be saved.
It is further preferred that in the step ii, following information is informed the user equipment by base station：
The type of-the variable thresholding；
- the first time point；
- the first threshold and the Second Threshold；
For type b, following information is also informed the user equipment by base station：
- second time point or the slope of linear decline；
For type c, following information is also informed the user equipment by base station：
- second time point；
- rolloff-factor.
Parameter information needed for during this embodiment offers base station for the user device configuration variable thresholding.
In one preferred embodiment, in the step i, the base station determines that this can according to the type of user equipment
Become threshold value, and, in the step ii, the base station broadcasts to the variable thresholding by PBCH signalings the institute of given type
There is user equipment.
In this embodiment, base station can determine different variable thresholdings according to the type of user equipment, for example, right
More variable thresholding is reduced in the user device configuration that can suffer from more channel degradation, it is ensured that it can continue deterioration
It is preceding to be accessed；And less variable thresholding is reduced to the relatively stable user device configuration of channel conditions, reduce its power and disappear
Consumption.With stronger specific aim and flexibility.And base station is configured by broadcast signaling, saves signaling consumption.
Correspondingly, used in the second aspect of the invention there is provided a kind of in the user equipment of machine type communication
In the method for access, it is characterised in that comprise the following steps：I. be configured to access downlink channel quality information can variable threshold
Value, wherein, the variable thresholding can be reduced and reduced with the remaining time of the transmission delay timer of the user equipment；II. connect
The downstream signal from base station is received, and measures downlink channel quality information；III. when the downlink channel quality information measured not
Less than current time the variable thresholding when, access the base station.
Another inventive concept of the present invention is to set different threshold values for the user equipment of different qualities, improves flexible
Property.
Based on this design, match somebody with somebody in the third aspect of the invention there is provided a kind of in the base station of machine type communication
The method for putting user equipment access, it is characterised in that comprise the following steps：I. the operating characteristic of the user equipment is obtained；Ii. it is
The user equipment determines the threshold value of the downlink channel quality information for access, wherein, the threshold value is depended on and set according to the user
The standby operating characteristic；Iii. by the threshold value signaled user equipment.
In this aspect, the threshold value for the downlink channel quality information of access is all not one for all user equipmenies
Cause, but flexibly changed according to the operating characteristic of the user equipment, improve specific aim that user equipment accessed with
Flexibility, the performance with optimization.
Preferably, the operating characteristic includes following at least any one：
The mobility of-the user equipment；
The power consumption preference of-user equipment；
The antenna power of-the user equipment；
- the user equipment allows the stand-by period to access.
This embodiment offers several operating characteristics of example.
For the mobility of user equipment, if the moving range of the equipment is in cell periphery all the time, then can be with
Relatively low threshold value is set for it, so that improving it accesses probability；And if the moving range of the equipment includes center of housing estate, then
It can think that it sets higher thresholds so that it is accessed when close to base station, save power.
For the power consumption preference of the user equipment, if user equipment is not intended to save power, then can be set for it
Put relatively low threshold value；Otherwise, higher threshold value can be set so that it be all in channel quality it is preferable when carried out with lower-wattage
Access, saves power.
For the antenna power of the user equipment, if antenna power is relatively low, then the threshold value of setting should be higher, this be because
For low power antenna can when channel quality is preferable normal work；If on the contrary, antenna power is higher, then can set compared with
Low threshold value.
For the user equipment is allowed to access the stand-by period, analyzed as before, allow that the stand-by period is longer, can obtain
The probability for obtaining more excellent channel quality is bigger, therefore threshold value can set higher；Otherwise, relatively low threshold value should be set.
Correspondingly, enter in the fourth aspect of the invention there is provided a kind of in the user equipment of machine type communication
The method of row access, it is characterised in that comprise the following steps：I. the threshold value of the downlink channel quality information of access is configured to,
Wherein, the threshold value depends on the operating characteristic according to the user equipment；II. the downstream signal from base station is received, and is measured
To downlink channel quality information；III. when the downlink channel quality information measured is not less than the threshold value, the base station is accessed.
The present invention other characteristics, advantage and purpose will more clearly be illustrated in embodiment and accompanying drawing, or
Person is understood by studying the disclosure by those of ordinary skill in the art.
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, purpose and advantage will will become more apparent.
Fig. 1 is that masking fading gain changes with time figure；
Fig. 2 shows variable thresholding according to the embodiment of the present invention on the basis of Fig. 1 masking fading gain figure
Three kinds implement；
Fig. 3 shows the schematic diagram of the masking decay for emulation.
Embodiment
There is provided a kind of method accessed in machine type communication, base station according to the first aspect of the invention
Carry out following step：
I. base station determines the user equipment, downlink channel quality information for access variable thresholding, wherein, this can
Becoming threshold value can reduce and reduce with the remaining time of the transmission delay timer of the user equipment；
Ii. the variable thresholding is sent to the user equipment by signaling.
And the user equipment carries out following step：
I. it is configured to the variable thresholding of the downlink channel quality information of access.
The channel quality information may, for example, be any information that RSRP, SNR etc. weigh down channel quality.
Preferably, the variable thresholding includes following any kind：
A. it is equal to first threshold before first time point of the variable thresholding in transmission delay timer, then equal to second
Threshold value.This type is as signified such as arrow 20 in Fig. 2.It is appreciated that the threshold value of three ranks or more rank can also be configured, over time
Propulsion be gradually lowered.This variable thresholding also falls into the scope of claim naturally.
B. be equal to the first threshold before first time point of the variable thresholding in transmission delay timer, it is then linear under
Drop, is equal to Second Threshold after the second time point.This type is as signified such as arrow 22 in Fig. 2.
C. it is equal to the first threshold before first time point of the variable thresholding in transmission delay timer, then roll-offs,
It is equal to Second Threshold after the second time point.This type is as indicated by arrow 24 in fig. 2.The variable thresholding for form of roll-offing can be seen
Into the combination for the variable thresholding for being type a and type b.
In order to notify variable thresholding to give the user equipment, following information is informed the user equipment by base station：
The type of-the variable thresholding, indicates one kind in three of the above variable thresholding.If an it is appreciated that only species
The variable thresholding of type, then the information can save；
- the first time point；
- the first threshold and the Second Threshold.
Also, for type b, following information is also informed the user equipment by base station：
- second time point or the slope of linear decline；
For type c, following information is also informed the user equipment by base station：
- second time point；
- rolloff-factor.
Correspondingly, user equipment receives these information.
Afterwards, when being accessed, user equipment performs following step：
II. the downstream signal from base station is received, and measures downlink channel quality information；
III. when the downlink channel quality information measured is not less than the variable thresholding at current time, the base station is accessed.
Preferably, in the step i, the base station determines the variable thresholding according to the type of user equipment, and described
In step ii, the base station broadcasts to the variable thresholding by PBCH signalings all user equipmenies of given type.Accordingly
Ground, the user equipment of the given type receives the variable thresholding.Alternatively, the variable thresholding can also be pre-stored in the user and set
Among standby, without being configured by base station.
Inventor is emulated to the performance of variable thresholdings several according to the embodiment of the present invention.The emulation is to be based on
3x10 as shown in Figure 36The masking decline example of millisecond.Existing single threshold mode is simulated to be used as reference, the single threshold
Equal to 10dB.According in type a variable thresholding, two threshold values are respectively 10dB and 2dB.According in type b variable thresholding,
From 10dB linear reductions to 0dB.Table 1 below shows three kinds of respective total transmission powers of mode：
Table 1
| Threshold type | Total transmission power |
| Traditional single threshold | 2.61w |
| Type a | 2.27w |
| Type b | 0.75w |
It can be seen that, type b results in significant performance boost, and its transmission power is only 1/ of power needed for traditional single threshold
3 or even 1/4.
Configure user equipment access in machine type communication there is provided one kind in the further embodiment of the present invention
Method, base station carry out following steps：
I. the operating characteristic of the user equipment is obtained；
Ii. the threshold value of the downlink channel quality information for access is determined for the user equipment, wherein, the threshold value is depended on
According to the operating characteristic of the user equipment；
Iii. by the threshold value signaled user equipment.
User equipment carries out following steps：
I. it is configured to the threshold value of the downlink channel quality information of access；
II. the downstream signal from base station is received, and measures downlink channel quality information；
III. when the downlink channel quality information measured is not less than the threshold value, the base station is accessed.
Preferably, the operating characteristic includes following at least any one：
The mobility of-the user equipment；
The power consumption preference of-user equipment；
The antenna power of-the user equipment；
- the user equipment allows the stand-by period to access.
This embodiment offers several operating characteristics of example.
For the mobility of user equipment, if the moving range of the equipment is in cell periphery all the time, then can be with
Relatively low threshold value is set for it, so that improving it accesses probability；And if the moving range of the equipment includes center of housing estate, then
It can think that it sets higher thresholds so that it is accessed when close to base station, save power.
For the power consumption preference of the user equipment, if user equipment is not intended to save power, then can be set for it
Put relatively low threshold value；Otherwise, higher threshold value can be set so that it be all in channel quality it is preferable when carried out with lower-wattage
Access, to save power.
For the antenna power of the user equipment, if antenna power is relatively low, then the threshold value of setting should be higher, this be because
For low power antenna can when channel quality is preferable normal work；If on the contrary, antenna power is higher, then can set compared with
Low threshold value.
For the user equipment is allowed to access the stand-by period, analyzed as before, allow that the stand-by period is longer, can obtain
The probability for obtaining more excellent channel quality is bigger, therefore threshold value can set higher；Otherwise, relatively low threshold value should be set.
Embodiments of the invention are described above, but the invention is not limited in specific system, equipment and
Specific agreement, those skilled in that art can make various deformations or amendments within the scope of the appended claims.
The those skilled in the art of those the art can be by studying specification, disclosure and accompanying drawing and appended
Claims, understand and implement other changes to the embodiment of disclosure.In the claims, word " comprising " is not arranged
Except other elements and step, and wording " one " is not excluded for plural number.In the present invention, " first ", " second " only represent name
Claim, do not represent orbution.In the practical application of invention, cited multiple skills in the possible perform claim requirement of a part
The function of art feature.Any reference in claim should not be construed as the limitation to scope.
Claims (8)
1. a kind of method that user equipment access is configured in the base station of machine type communication, it is characterised in that including following step
Suddenly：
I. the user equipment, downlink channel quality information for access variable thresholding is determined, wherein, the variable thresholding energy
The remaining time of enough transmission delay timers with the user equipment reduces and reduced；
Ii. the variable thresholding is sent to the user equipment by signaling.
2. according to the method described in claim 1, it is characterised in that in the step i, the variable thresholding includes following any sort
Type：
A. it is equal to first threshold before first time point of the variable thresholding in transmission delay timer, then equal to the second threshold
Value；
B. it is equal to the first threshold before first time point of the variable thresholding in transmission delay timer, then linear decline,
It is equal to Second Threshold after the second time point；
C. it is equal to the first threshold before first time point of the variable thresholding in transmission delay timer, then roll-offs, the
It is equal to Second Threshold after two time points.
3. method according to claim 2, it is characterised in that in the step ii, following information is informed the use by base station
Family equipment：
The type of-the variable thresholding；
- the first time point；
- the first threshold and the Second Threshold；
For type b, following information is also informed the user equipment by base station：
- second time point or the slope of linear decline；
For type c, following information is also informed the user equipment by base station：
- second time point；
- rolloff-factor.
4. method according to claim 2, it is characterised in that in the step i, the base station is according to the type of user equipment
To determine the variable thresholding,
In the step ii, the base station is set all users that the variable thresholding broadcasts to given type by PBCH signalings
It is standby.
5. a kind of method for being used to access in the user equipment of machine type communication, it is characterised in that comprise the following steps：
I. the variable thresholding of the downlink channel quality information of access is configured to, wherein, the variable thresholding can be set with the user
The remaining time of standby transmission delay timer reduces and reduced；
II. the downstream signal from base station is received, and measures downlink channel quality information；
III. when the downlink channel quality information measured is not less than the variable thresholding at current time, the base station is accessed.
6. method according to claim 5, it is characterised in that in the step I, the variable thresholding includes following any sort
Type：
A. it is equal to first threshold before first time point of the variable thresholding in transmission delay timer, then equal to the second threshold
Value；
B. it is equal to the first threshold before first time point of the variable thresholding in transmission delay timer, then linear decline,
It is equal to Second Threshold after the second time point；
C. it is equal to the first threshold before first time point of the variable thresholding in transmission delay timer, then roll-offs, the
It is equal to Second Threshold after two time points.
7. method according to claim 6, it is characterised in that in the step I, receives the following information from base station：
The type of-the variable thresholding；
- the first time point；
- the first threshold and the Second Threshold；
For type b, user equipment also receives the following information from base station：
- second time point or the slope of linear decline；
For type c, user equipment also receives the following information from base station：
- second time point；
- rolloff-factor.
8. method according to claim 5, it is characterised in that in the step I, is received by PBCH signalings and comes from base station
, the variable thresholdings of all user equipmenies for being sent to the forms of broadcasting the affiliated type of the user equipment.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117031.0A CN104105176B (en) | 2013-04-06 | 2013-04-06 | The method for being used to access in machine type communication |
| PCT/IB2014/000798 WO2014162206A2 (en) | 2013-04-06 | 2014-03-24 | Method for accessing in machine type communication |
| TW103111448A TW201505465A (en) | 2013-04-06 | 2014-03-27 | Method for accessing in machine type communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117031.0A CN104105176B (en) | 2013-04-06 | 2013-04-06 | The method for being used to access in machine type communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104105176A CN104105176A (en) | 2014-10-15 |
| CN104105176B true CN104105176B (en) | 2017-09-15 |
Family
ID=51033236
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310117031.0A Active CN104105176B (en) | 2013-04-06 | 2013-04-06 | The method for being used to access in machine type communication |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104105176B (en) |
| TW (1) | TW201505465A (en) |
| WO (1) | WO2014162206A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961699B (en) * | 2017-03-06 | 2020-03-20 | 展讯通信（上海）有限公司 | User equipment allocation method, network side equipment and user equipment |
| JP7235737B2 (en) | 2017-10-13 | 2023-03-08 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | semiconducting luminescent material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917694A (en) * | 2005-08-17 | 2007-02-21 | 西门子（中国）有限公司 | Method for selecting random access channel by user terminal in radio mobile communication system |
| CN101340707A (en) * | 2007-07-04 | 2009-01-07 | 鼎桥通信技术有限公司 | Random access method, network control unit, base station unit and user terminal |
| WO2009058764A1 (en) * | 2007-10-29 | 2009-05-07 | Interdigital Patent Holdings, Inc. | Method for detecting radio link failure for transmission over enhanced dedicated channel in a cell_fach state |
| CN102045743A (en) * | 2009-10-22 | 2011-05-04 | 三星电子株式会社 | Apparatus and method for random access channel transmission in wireless communication system |
-
2013
- 2013-04-06 CN CN201310117031.0A patent/CN104105176B/en active Active
-
2014
- 2014-03-24 WO PCT/IB2014/000798 patent/WO2014162206A2/en active Application Filing
- 2014-03-27 TW TW103111448A patent/TW201505465A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917694A (en) * | 2005-08-17 | 2007-02-21 | 西门子（中国）有限公司 | Method for selecting random access channel by user terminal in radio mobile communication system |
| CN101340707A (en) * | 2007-07-04 | 2009-01-07 | 鼎桥通信技术有限公司 | Random access method, network control unit, base station unit and user terminal |
| WO2009058764A1 (en) * | 2007-10-29 | 2009-05-07 | Interdigital Patent Holdings, Inc. | Method for detecting radio link failure for transmission over enhanced dedicated channel in a cell_fach state |
| CN102045743A (en) * | 2009-10-22 | 2011-05-04 | 三星电子株式会社 | Apparatus and method for random access channel transmission in wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201505465A (en) | 2015-02-01 |
| WO2014162206A2 (en) | 2014-10-09 |
| CN104105176A (en) | 2014-10-15 |
| WO2014162206A3 (en) | 2015-03-05 |
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