CN107800523A - Method and apparatus for allocating random access channel resource - Google Patents
Method and apparatus for allocating random access channel resource Download PDFInfo
- Publication number
- CN107800523A CN107800523A CN201610801556.XA CN201610801556A CN107800523A CN 107800523 A CN107800523 A CN 107800523A CN 201610801556 A CN201610801556 A CN 201610801556A CN 107800523 A CN107800523 A CN 107800523A
- Authority
- CN
- China
- Prior art keywords
- candidate
- frames
- subframe
- configuration
- predetermined
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000004891 communication Methods 0.000 claims description 21
- 230000004044 response Effects 0.000 claims description 12
- 238000009432 framing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 12
- 230000015654 memory Effects 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 241000760358 Enodes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000036963 noncompetitive effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0066—Requirements on out-of-channel emissions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Embodiment of the disclosure is related to the method and apparatus for allocating random access channel resource.At the network equipment, it may be determined that for transmitting candidate configuration of the uplink sub-frames of lead code under multiple predetermined conditions, predetermined condition is related to up-link or downlink transmission situation.Then, can be to the instruction of terminal device send configuration, so that terminal device configures the uplink sub-frames available for Stochastic accessing according to instruction.Terminal device can be accordingly based upon the condition currently met, to select the uplink sub-frames for transmitting lead code.
Description
Technical field
Embodiment of the disclosure relates generally to the communication technology, is provided more particularly, to for allocating random access channel
The method and apparatus in source.
Background technology
At present, in R14 eLAA (authorizing the access of auxiliary frequency spectrum) technology, in noncompetitive RA (Stochastic accessing) the process phase
Between, the network equipment can send PDCCH (Physical Downlink Control Channel) instructions to terminal device to exist according to specified lead code ID
Lead code is triggered in PRACH (Physical Random Access Channel) resource of one or more of resource pool being pre-configured with distribution to pass
It is defeated.
In traditional random access procedure, configured by RRC (wireless heterogeneous networks) by a data frame of carrier wave
Available PRACH resources (including frequency domain resource, sequence sets, time-domain resource) be pre-configured with and be assigned to terminal device.It can be used for
The time domain PRACH resources of PRACH transmission are configured to PRACH configuration indexs by RRC.When afterwards, by combining PDCCH command receptions
Between and PRACH configuration indexs (" PRACH Mask Index (shielding index) " that 4 bits are expressed as in PDCCH instructions),
Actual PRACH resources used in terminal device transmission PRACH are determined in the PRACH resources being configured.Therefore, traditional
In LTE system, it by RRC configuration limits is some or some specific subframes that can use PRACH resources.
However, because the lead code during the RACH of eLAA carrier waves is transmitted on the carrier wave of unauthorized, therefore it is not true
Fixed LBT (Listen Before Talk) result may postpone random access procedure.Further, since UL (up-link)/DL in eLAA
(downlink) configuration can change with the difference of transmission data block, therefore fixed or semi-static PRACH resource distributions
Turn-on time can also be increased.For frame structure type 2, the PRACH resources in time domain are configured by DL/UL to be restricted.Due to
Any subframe may each be UL subframe or DL subframe in eLAA, therefore this resource instruction based on DL/UL configurations is just inadequate.
Accordingly, it is possible to there is semi-persistent resource configuration and the afoul situation of dynamic UL subframe.
The content of the invention
Generally, present disclose provides the method and apparatus for allocating random access channel resource.
In a first aspect, embodiment of the disclosure provides a kind of communication means.This method includes：At the network equipment,
It is determined that for transmitting candidate configuration of the uplink sub-frames of lead code under multiple predetermined conditions, predetermined condition is related to uplink
Road or downlink transmission situation；And the instruction to terminal device send configuration, so that terminal device configures according to instruction
Uplink sub-frames.
In second aspect, embodiment of the disclosure provides a kind of communication means.This method includes：At terminal device,
From the network equipment receive for transmit lead code uplink sub-frames under multiple predetermined conditions candidate configuration instruction；Base
Up-link or downlink transmission situation at terminal device, determine the condition being satisfied in multiple predetermined conditions；With
And configured based on candidate corresponding to the condition for indicating and being satisfied, candidate's configuration is selected in being configured from candidate, to be provided for
Transmit the uplink sub-frames of lead code.
In the third aspect, embodiment of the disclosure provides a kind of network equipment.The network equipment includes：Controller, quilt
Candidate configuration of the uplink sub-frames for being configured to determine to be used to transmit lead code under multiple predetermined conditions, predetermined condition are related to
Up-link or downlink transmission situation；And transceiver, the instruction to terminal device send configuration is configured as, so as to end
End equipment is according to instruction come collocating uplink link subframe.
In fourth aspect, embodiment of the disclosure provides a kind of terminal device.The terminal device includes：Transceiver, quilt
Be configured to from the network equipment receive for transmit lead code uplink sub-frames under multiple predetermined conditions candidate configuration
Instruction；And controller, the up-link being configured as at based on terminal device or downlink transmission situation, determine multiple
The condition being satisfied in predetermined condition, and configured based on candidate corresponding to the condition for indicating and being satisfied, from candidate configures
Candidate's configuration is selected, to be provided for transmitting the uplink sub-frames of lead code.
It will be understood that by being described below, in accordance with an embodiment of the present disclosure, by network equipment side configurating terminal device
The up-link or downlink transmission situation at place and multiple candidates configuration between corresponding relation so that terminal device according to
The corresponding relation and the actual transmissions situation based on up-link or downlink are configured flexibly uplink resource and are used to pass
Lead code needed for defeated Stochastic accessing, so as to avoid the delay of random access procedure as described above, improve PRACH transmission
Success rate, and be reasonably assigned with the channel resource for Stochastic accessing.
It should be appreciated that the content described in Summary is not intended to limit the embodiment of the present disclosure crucial or again
Feature is wanted, it is also non-to be used to limit the scope of the present disclosure.The further feature of the disclosure will be easy to understand by following description.
Brief description of the drawings
With reference to accompanying drawing and refer to described further below, above and other feature, advantage and the aspect of each embodiment of the disclosure
It will be apparent.In the accompanying drawings, same or analogous reference represents same or analogous element, wherein：
Fig. 1 shows the example communication network that embodiment of the disclosure can be implemented within；
Fig. 2 is shown carries out Signalling exchange use according to the network equipment and a terminal device of some embodiments of the disclosure
In the high-level piping drawing of PRACH transmission；
Fig. 3 shows the flow chart of the exemplary communication method of some embodiments according to the disclosure；
Fig. 4 shows that the uplink sub-frames for being used to transmit lead code according to the determination of some embodiments of the disclosure are located at
The schematic diagram of the first candidate configuration after predetermined subframe；
Fig. 5 shows that the uplink sub-frames for being used to transmit lead code according to the determination of some embodiments of the disclosure are located at
The schematic diagram of the second candidate configuration in special subframe；
Fig. 6 shows the flow chart of the exemplary communication method of some other embodiments according to the disclosure；
Fig. 7 shows the block diagram of the device of some embodiments according to the disclosure；
Fig. 8 shows the block diagram of the device of some embodiments according to the disclosure；And
Fig. 9 shows the block diagram of the equipment of some embodiments according to the disclosure.
In all of the figs, same or similar reference numeral represents same or similar element.
Embodiment
Embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although some of the disclosure are shown in accompanying drawing
Embodiment, it should be understood that, the disclosure can be realized by various forms, and should not be construed as being limited to this
In the embodiment that illustrates, it is in order to more thorough and be fully understood by the disclosure conversely to provide these embodiments.It should be understood that
It is being given for example only property of the drawings and Examples effect of the disclosure, is not intended to limit the protection domain of the disclosure.
Term " network equipment " as used herein refers to other realities in base station or communication network with specific function
Body or node." base station " (BS) can represent node B (NodeB either NB), enode b (eNodeB or eNB), long-range nothing
Line electric unit (RRU), radio-frequency maser (RH), remote radio heads (RRH), repeater or such as femto base station, femto base
Low power nodes stood etc. etc..In the context of the disclosure, to discuss convenient purpose, term " network equipment " and " base
Stand " it is interchangeable, and the example of the network equipment may be mainly used as using eNB.
Term " terminal device " as used herein or " user equipment " (UE) be refer between base station or each other it
Between carry out radio communication any terminal device.As an example, terminal device can include mobile terminal (MT), subscriber stations
(SS), portable subscriber platform (PSS), mobile station (MS) or access terminal (AT), and vehicle-mounted the said equipment.In the disclosure
Context in, to discuss convenient purpose, term " terminal device " and " user equipment " are interchangeable.
Term " comprising " as used herein and its deformation are that opening includes, i.e., " include but is not limited to ".Term "based"
It is " being based at least partially on ".Term " one embodiment " expression " at least one embodiment "；Term " another embodiment " represents
" at least one further embodiment ".The related definition of other terms provides in will be described below.
Due to during the RA of eLAA carrier waves, transmit lead code used in carrier wave be unauthorized, therefore in eLAA on
Line link/downlink configuration can change with the difference of transmission data block.Therefore it is traditional fixation or semi-static
PRACH resource distributions can not adapt to the up-link changed over time or the actual transmissions situation of downlink, it is easy to cause
Random access procedure postpones.
To solve this problem, a kind of mode is not limit the subframe available for PRACH transmission, because being pre-configured with
Subframe in the network equipment PDCCH instruction transmission or terminal device PRACH transmission channel obtain be not guaranteed.
In other words, which suggested terminals equipment transmits PRACH, preset time therein in any subframe determined by preset time
It is the time from PDCCH command reception time migrations.This shows, can be in the PDCCH instructions of triggering RACH processes dynamically
Specify (such as shield and index by PRACH) time-domain resource (subframe).However, RACH processes are related to and potential multiple have power
The preamble transmissions on slope (power ramping).And it may also be desirable to additional PDCCH to instruct for PRACH re-transmissions.This
Outside, it is competitive random in order to support to support in further LAA (independent LAA or multi-link LAA) or Multefire systems
Access procedure, this mode can produce the great wasting of resources due to its irrational resource reservation mode.
Therefore, it is necessary to which a kind of effective mode efficiently distributes the random access channel resource for PRACH transmission.
In order to solve these and other potential problems at least in part, embodiment of the disclosure provides brand-new communication means and phase
The equipment answered.
In general, in accordance with an embodiment of the present disclosure, the network equipment can determine the up-link for transmitting lead code
Candidate configuration of the subframe under multiple predetermined conditions, wherein predetermined condition is related to up-link or downlink transmission situation.It
Afterwards, the network equipment can send the instruction of the configuration to terminal device, so as to terminal device according to instruction come collocating uplink chain
Way frame.It should be noted that the instruction includes corresponding up-link or downlink transmission situation is matched somebody with somebody with corresponding candidate
The corresponding relation put, terminal device can know the corresponding relation from instruction, and it is right according to actual transmissions situation to perform this
It is used for uplink channel (for example, PRACH) resource distribution for transmitting lead code determined by should being related to.
That is, pass through up-link or downlink transmission situation at the configurating terminal device of network equipment side
Corresponding relation between being configured with multiple candidates so that terminal device is based on up-link or descending chain according to the corresponding relation
The actual transmissions situation on road is configured flexibly uplink resource and is used to transmit the lead code needed for Stochastic accessing.In this way,
The delay of random access procedure as described above can be avoided, improves the success rate of PRACH transmission, and reasonably distributes and is used for
The channel resource of Stochastic accessing.
Fig. 1 shows the example communication network 100 that embodiment of the disclosure can be implemented within.As shown in figure 1, communication
Network 100 includes the network equipment 130 and multiple terminal devices, i.e. first terminal equipment 110 and second terminal equipment 120.This
A little terminal devices 110,120 can communicate with the network equipment 130.It should be understood that the number of the network equipment and terminal device shown in Fig. 1
Mesh has no intention to limit merely for the sake of illustration purpose.Communication network 100 can include any an appropriate number of network equipment
And terminal device.Especially, the embodiment of the disclosure that will be described below goes for unique user equipment completely.
Communication in network 100 can be implemented according to any appropriate communication protocol, include but is not limited to, the first generation
The cellular communication protocol such as (1G), the second generation (2G), the third generation (3G), forth generation (4G) and the 5th generation (5G), such as electrically with electricity
The wireless LAN communication agreement of the sub- grade of IEEE (IEEE) 802.11, and/or times for being currently known or developing in the future
What his agreement.Moreover, the communication is included but is not limited to, CDMA (CDMA), frequency using any appropriate wireless communication technology
Point multiple access (FDMA), time division multiple acess (TDMA), FDD (FDD), time division duplex (TDD), multiple-input and multiple-output (MIMO), just
Hand over frequency division multiple access (OFDM), and/or any other technology for being currently known or developing in the future.
In accordance with an embodiment of the present disclosure, the network equipment 130 can determine to exist for transmitting the uplink sub-frames of lead code
Candidate's configuration under multiple predetermined conditions, wherein predetermined condition is related to up-link or downlink transmission situation.As an example,
Up-link or downlink transmission situation can substantially cover by first terminal equipment 110 or the institute of second terminal equipment 120
All actual transmissions situations of the data flow sensed, such as ascending-descending subframes configuration.Afterwards, the network equipment can be to first
Terminal device 110 or second terminal equipment 120 send the instruction of the configuration, so as to corresponding terminal device can according to instruction come
Collocating uplink link subframe is used to transmit lead code.
For single terminal equipment (for example, first terminal equipment 110), it can be with the actual transmissions of sensing data stream
Situation, and according to received instruction from network equipment side, select the pre- stator corresponding with actual transmissions situation
Frame transmits lead code.In other words, in the pre-defined candidate's configuration run into needed for various transmission situations of the network equipment 130, then
Actual transmissions situation is sensed by such as first terminal equipment 110, and takes the candidate configuration side pre-defined by the network equipment 130
Formula is configured flexibly the random access channel resource for transmitting lead code, so as to avoid the delay of random access procedure, enters
And improve the success rate of PRACH transmission.
Fig. 2 is shown to be carried out according to the network equipment 130 of some embodiments of the disclosure with one of terminal device 110
Signalling exchange is used for the high-level piping drawing of PRACH transmission.As shown in Fig. 2 before uplink preamble code transmission is carried out, net
Network equipment 130 determines the candidate's configuration of (210) UL subframe under multiple conditions, and these candidates are configured and corresponding conditionses
Instruction send (220) give terminal device, such as first terminal equipment 110.First terminal equipment 110 can determine (230) when
The condition of preceding satisfaction, and the instruction received come select in (240) multiple candidates configuration it is corresponding with the condition met that
Individual or those candidates configuration.Then, first terminal equipment 110 configures according to the candidate and sets UL subframe, so as to network
Equipment 130 transmits (250) lead code.
Below in conjunction with Fig. 3 to Fig. 6 respectively from the network equipment 130 and the angle of first terminal equipment 110, to the disclosure
Principle and specific embodiment are described in detail.With reference first to Fig. 3, it illustrates the example of some embodiments according to the disclosure
The flow chart of communication means 300.It is appreciated that method 300 can be real for example at the network equipment 130 as depicted in figs. 1 and 2
Apply.For convenience of description, method 300 is described with reference to Fig. 1 and Fig. 2.
As illustrated, 305, the network equipment 130 is determined for the uplink sub-frames for transmitting lead code multiple predetermined
Under the conditions of candidate configuration, the predetermined condition is related to up-link or downlink transmission situation, and is related to ascending-descending subframes
Configuration.310, instruction of the network equipment 130 to the send configuration of first terminal equipment 110, so as to terminal device according to instruction come
Collocating uplink link subframe.
In this way, the network equipment 130 can be sent to first terminal equipment 110 according to up-link or downlink biography
Defeated situation how the instruction of collocating uplink link subframe, the first terminal equipment 110 for receiving instruction is taken corresponding strategy
Lead code is transmitted on allocated carrier wave, so as to avoid the delay of random access procedure as described above, improves PRACH
The success rate of transmission, and reasonably it is assigned with the channel resource for Stochastic accessing.The processing of end side will combine later
Fig. 6 is described in detail.
In certain embodiments, the network equipment 130 can be defined below the first candidate configuration：If there is predetermined son
Frame, the then uplink sub-frames for being used to carry lead code are located at after the predetermined subframe.In some implementations, the predetermined subframe example
Downlink terminates subframe in this way.Fig. 4 shows the schematic diagram of such embodiment.In data frame 400, with letter
The data frame 410,420 and 430 of " D " represents downlink subframe, wherein " D " that has patterned bottom wrapping lid represents downlink knot
Beam subframe, subframe 440 can Yong Lai not transmit lead code.Now, downlink after a string of downlink subframes are sensed
When terminating subframe, next subframe can be assigned as the subframe for transmitting lead code by terminal device.As another example, work as sense
When measuring the downlink after a string of downlink subframes and terminating subframe, terminal device downlink can be terminated subframe it
N-th subframe afterwards is assigned as the subframe for transmitting lead code, and N is positive integer.In this way, it is possible to pass through terminal device
Sensing downlink terminates subframe signaling and is used to transmit lead code to configure corresponding subframe, is used at random so as to avoid or reduce
The delay of access procedure.
In certain embodiments, the network equipment 130 can also be defined below the second candidate configuration：If lead code form is
4, then the uplink sub-frames for being used to carry lead code are located in special subframe.Fig. 5 shows showing for such embodiment
It is intended to.In data frame 500, the subframe with alphabetical " D " represents downlink subframe, and the data frame with " U " is uplink
Way frame, the subframe 510 with alphabetical " S " is special subframe (special subframe).The special subframe 510 can be used for
Transmit the subframe of lead code.Correspondingly, terminal device with decoding data frame and can sense the special subframe 510 in frame.As
Example, when sensing special subframe 510, the special subframe can be assigned as the son for transmitting lead code by terminal device
Frame.In this way, it is possible to make terminal device be configured to transmit lead code by sensing special subframe, so as to avoiding or
Reduce the delay for random access procedure.
In certain embodiments, the network equipment 130 can be defined below the 3rd candidate configuration：Know data in terminal device
In the case of one or more of frame predetermined uplink subframe, then it is used to carrying the uplink sub-frames of lead code positioned at obtaining
In one or more of predetermined uplink subframe known.In other words, the 3rd candidate configures regulation, and a part of subframe is advance
Potential random access channel resource is configured to be used to transmit lead code.As an example, it is by the strange sub-frame configuration in data frame
For transmitting the subframe of lead code.Usually, predetermined uplink subframe be from the border of data frame start counting up it is predetermined on
Uplink subframe.In this way, it is possible to make the subframe as potential random access channel resource that terminal device will be known in advance
For transmitting lead code, so as to avoid or reduce the delay for random access procedure.
In certain embodiments, if network equipment a very long time does not transmit PDCCH, Stochastic accessing can also be made
Process postpones.Therefore, the network equipment 130 can also be defined below the 4th candidate configuration：If downlink is in silence
State, the then uplink sub-frames for being used to carry lead code find signal (Stand-alone Discovery positioned at independent
Signal after).Correspondingly, terminal device decoding data frame and sense in frame independent find signal.As an example, when sense
When measuring independent discovery signal, next subframe can be assigned as the subframe for transmitting lead code by terminal device.As another
Example, when sensing independent discovery signal, the independent m-th subframe found after signal can be assigned as using by terminal device
In the subframe of transmission lead code, M is positive integer.In this way, it is possible to make terminal device by sensing independent discovery signal to match somebody with somebody
Put corresponding subframe to be used to transmit lead code, so as to avoid or reduce the delay for random access procedure.
In certain embodiments, if being in the close of silent status period independent discovery signal to be received in downlink
Degree deficiency, then can still postpone random access procedure.Therefore, the network equipment 130 can be defined below the 5th candidate configuration：
It is determined that the up-link in the case where terminal device detects the continuous empty frame of predetermined number from one or more data frames
Subframe is located at after the continuous empty frame of the predetermined number.Accordingly, continuous multiple subframes that terminal device can be in a data frame
It is not detected by the subframe being considered as next subframe after downlink transmission for transmitting lead code.As an example, when a number
During according to sensing continuous 9 empty frames in frame, next subframe can be assigned as the subframe for transmitting lead code by terminal device.
As another example, when sensing such as 9 empty frames, the Q subframe afterwards can be assigned as being used for by terminal device
The subframe of lead code is transmitted, Q is positive integer.In this way, it is possible to make terminal device by sensing the empty frame of predetermined number simultaneously
Subframe afterwards is considered as PRACH resources configure corresponding subframe be used for transmit lead code, so as to avoid or reduce be used for
The delay of machine access procedure.
It should be understood that in order to PRACH transmission success rate to complete Stochastic accessing as early as possible, but increase be used in a data frame
Transmit the density of the subframe of lead code.Therefore, multiple sons for being used to transmit lead code can be configured in the case of each actual transmissions
Frame.Further, it is also possible to wireless heterogeneous networks (RRC) layer signaling is created in network equipment side, by the subframe for transmitting lead code
It is configured to be located at after the rrc layer signaling.
Following table 1 covers above-mentioned first candidate configuration, the second candidate configuration, the 3rd candidate configures, the 4th candidate matches somebody with somebody
Put and configure this several example with the 5th candidate.Match somebody with somebody for example, the subframe numbers corresponding to PRACH resource indexs 1 cover the first candidate
Put, the 4th candidate configuration and the 5th candidate configure.Subframe numbers corresponding to PRACH resource indexs 6 cover the 3rd candidate configuration,
4th candidate configures and the 5th candidate configuration.Subframe numbers corresponding to PRACH resource indexs 9 cover the second candidate configuration, the
Four candidates configure and the 5th candidate configuration.
Table 1
It should be appreciated that table 1 shows what is be merely exemplary with these above-described configurations.Describing these examples is only
In order to help to understand the thought and principle of the embodiment of the present disclosure, it is not intended to limit the scope of the present disclosure in any way.Moreover, configuration
Other aspect can according to be currently known or in the future exploitation any mode complete, the scope of the present disclosure is same in this regard
It is unrestricted.
In the implementation, the network equipment 130 can by candidate configure and its corresponding condition with form, program code, script,
Any appropriate mode tissue such as text and it is sent to terminal device 110,120.The scope of the present disclosure is in this regard also not
It is restricted.
Further, since present disclose provides new PRICH resources employment methods, therefore traditional PRACH shielding indexes also need
Modify, to adapt to new PRICH resources employment methods.PRACH shieldings can be used for triggering from alternative PRACH resources
PRACH transmission in the specific resources of selection.In terms of time domain, PRACH is shielded in the data frame that should cover eLAA
All possible time domain PRACH resources.In terms of frequency domain, PRACH shieldings should support the maximum PRACH in a subframe
Ability (for example, 3 times) at double.
Table 2 below shows improved PRACH shieldings to index.The PRACH reconfigured by means of table 2 shields index,
Configuration conflict can be avoided.
Table 2
Fig. 6 shows the flow chart of the exemplary communication method 600 of some embodiments according to the disclosure.It is appreciated that side
Method 600 can be implemented for example at first terminal equipment 110 as depicted in figs. 1 and 2.For convenience of description, with reference to Fig. 1 and
Fig. 2 illustrates to method 600.
As illustrated, 605, first terminal equipment 110 receives the uplink for transmitting lead code from the network equipment 130
The instruction of candidate configuration of the way frame under multiple predetermined conditions.610, first terminal equipment 110 based on terminal device at
Up-link or downlink transmission situation, determine the condition being satisfied in multiple predetermined conditions.As described above, from it is different
Condition corresponding to candidate's configuration is determined based on up-link and/or the situation of downlink.Therefore, first terminal equipment
110 can by sensing current up-link and/or downlink conditions, come determine which of these conditions or which
Condition is met
615, first terminal equipment 110 is configured based on candidate corresponding to the condition for indicating and being satisfied, and is configured from candidate
Middle selection candidate configuration, to be provided for transmitting the uplink sub-frames of lead code.For example, in certain embodiments, first
Terminal device 110 can select to set for the uplink sub-frames for carrying lead code in the case where predetermined subframe be present
The first candidate configuration after predetermined subframe.As an example, first terminal equipment 110 can downlink terminate subframe it
First subframe afterwards uploads defeated lead code.In this way, it is possible to terminal device is set to terminate subframe letter by sensing downlink
Order is used to transmit lead code to configure corresponding subframe, so as to avoid or reduce the delay for random access procedure.
In certain embodiments, first terminal equipment 110 can select be used to take in response to the form of lead code for 4
Uplink sub-frames with lead code are arranged on the second candidate configuration in special subframe.Special son is sensed as an example, working as
During frame, the special subframe can be assigned as the subframe for transmitting lead code by terminal device.In this way, it is possible to set terminal
It is standby to be configured to transmit lead code by sensing special subframe, so as to avoid or reduce for random access procedure
Delay.
In certain embodiments, first terminal equipment 110 can be in response to knowing that one or more of data frame is predetermined
Uplink sub-frames, select in predetermined uplink subframe that will know for transmitting the uplink sub-frames of lead code to be arranged on
One or more in the 3rd candidate configuration.As an example, it is for transmitting lead code by the strange sub-frame configuration in data frame
Subframe.In this way, it is possible to terminal device is set to be used for the subframe as potential random access channel resource known in advance
Lead code is transmitted, so as to avoid or reduce the delay for random access procedure.
In certain embodiments, first terminal equipment 110 can be in silent status in response to downlink, and selection will be used
Independent the 4th candidate found after signal is arranged in the uplink sub-frames for carrying lead code to configure.As an example, when sense
When measuring independent discovery signal, next subframe can be assigned as the subframe for transmitting lead code by terminal device.In this way,
Terminal device can be made to be used to transmit lead code to configure corresponding subframe by sensing independent discovery signal, so as to avoid or reduce
It is used for the delay of random access procedure.
In certain embodiments, first terminal equipment 110 can be in response to detecting the company of predetermined number from data frame
Continuous empty frame, selects to be arranged on after the continuous empty frame of the predetermined number for transmitting the uplink sub-frames of lead code
5th candidate configures.As an example, when sensing such as 9 continuous empty frames, terminal device can distribute next subframe
For the subframe for transmitting lead code.In this way, it is possible to make terminal device by sense predetermined number empty frame and by it
Subframe afterwards is considered as PRACH resources and is used to transmit lead code to configure corresponding subframe, is used to connect at random so as to avoid or reduce
Enter the delay of process.
It should be appreciated that operation and correlation performed by the network equipment 130 described above in association with Fig. 3 to Fig. 5 schematic diagram
Feature be equally applicable to method 600 performed by first terminal equipment 110, and there is same effect, detail is not
Repeat again.
Fig. 7 shows the block diagram of the device 700 of some embodiments according to the disclosure.It is appreciated that device 700 can be real
Apply in the side of the network equipment 130 shown in Fig. 1 and Fig. 2.As shown in fig. 7, device 700 includes：Determining unit 705, it is configured as really
Candidate configuration of the fixed uplink sub-frames for being used to transmit lead code under multiple predetermined conditions；Transmitting element 710, is configured as
Instruction to terminal device send configuration, so as to terminal device according to instruction come collocating uplink link subframe.
In certain embodiments, determining unit 705 includes the first determining unit, is configured to determine that for carrying lead code
Uplink sub-frames be located at the first candidate configuration after predetermined subframe.In certain embodiments, predetermined subframe is descending chain
Terminate subframe in road.
In certain embodiments, determining unit 705 includes the second determining unit, is configured to determine that the form in lead code
Be located at the second candidate in special subframe to be used to carrying the uplink sub-frames of lead code in the case of 4 to configure.
In certain embodiments, determining unit 705 includes the 3rd determining unit, is configured to determine that and knows in terminal device
The uplink sub-frames for being used to transmit lead code in the case of one or more of data frame predetermined uplink subframe are located at
The 3rd candidate configuration of one or more of the predetermined uplink subframe known.
In certain embodiments, determining unit 705 includes the 4th determining unit, is configured to determine that and is in downlink
The uplink sub-frames for being used to carry lead code in the case of silent status are matched somebody with somebody positioned at independent the 4th candidate found after signal
Put.
In certain embodiments, determining unit 705 includes the 5th determining unit, is configured to determine that in terminal device from number
It is located at the continuous sky of the predetermined number according to uplink sub-frames in the case of the continuous empty frame that predetermined number is detected in frame
The 5th candidate configuration after subframe.
Fig. 8 shows the block diagram of the device 800 of some embodiments according to the disclosure.It is appreciated that device 800 can be real
Apply in the side of first terminal equipment 110 shown in Fig. 1 and Fig. 2.As illustrated, device 800 includes：Receiving unit 805, is configured
For from the network equipment receive for transmit lead code uplink sub-frames under multiple predetermined conditions candidate configuration instruction；
Determining unit 810, the up-link being configured as at based on terminal device or downlink transmission situation, determine multiple predetermined
The condition being satisfied in condition；And selecting unit 815, it is configured as matching somebody with somebody based on candidate corresponding to the condition for indicating and being satisfied
Put, candidate's configuration is selected in being configured from candidate, to be provided for transmitting the uplink sub-frames of lead code.
In certain embodiments, selecting unit 815 includes first choice unit, be configured as selection will be used to carrying it is leading
The uplink sub-frames of code are arranged on the first candidate configuration after predetermined subframe.In certain embodiments, under predetermined subframe is
Line link terminates subframe.
In certain embodiments, selecting unit 815 includes the second selecting unit, is configured to respond to the form of lead code
It will be configured for 4 selections for carrying the second candidate that the uplink sub-frames of lead code are arranged in special subframe.
In certain embodiments, selecting unit 815 includes the 3rd selecting unit, is configured to respond to know in data frame
One or more predetermined uplink subframes, select by for transmit the uplink sub-frames of lead code be arranged on know it is pre-
Determine the 3rd candidate configuration of one or more of uplink sub-frames.
In certain embodiments, selecting unit 815 includes the 4th selecting unit, is configured to respond to downlink and is in
Silent status, independent the 4th candidate found after signal will be arranged on for carrying the uplink sub-frames of lead code by, which selecting, matches somebody with somebody
Put.
In certain embodiments, selecting unit 815 includes the 5th selecting unit, is configured to respond to examine from data frame
The continuous empty frame of predetermined number is measured, selects that the predetermined number will be arranged on for the uplink sub-frames for transmitting lead code
The 5th candidate configuration after continuous empty frame.
It should be appreciated that device 700 and each unit described in device 800 method with being described referring to figs. 1 to Fig. 6 respectively
Each step in 300 and 600 is corresponding.Therefore, it is equally applicable to fill above in association with Fig. 1 to Fig. 6 operations described and feature
700 and device 800 and the unit that wherein includes are put, and there is same effect, detail repeats no more.
In device 700 and device 800 included unit can profit realize in various manners, it is including software, hardware, solid
Part or its any combination.In one embodiment, one or more units can be realized using software and/or firmware, such as
The machine-executable instruction of storage on a storage medium.In addition to machine-executable instruction or alternatively, the He of device 700
Some or all of unit in device 800 can be realized by one or more hardware logic components at least in part.As
Example and it is unrestricted, the hardware logic component of the exemplary type that can be used includes field programmable gate array (FPGA), special
Integrated circuit (ASIC), application specific standard product (ASSP), on-chip system (SOC), CPLD (CPLD), etc..
Fig. 9 shows the block diagram for the equipment 900 for being adapted for carrying out embodiment of the disclosure.Equipment 900 can be used for realizing
The network equipment, such as the network equipment 130 shown in Fig. 1 and Fig. 2；And/or for realizing in terminal device, such as Fig. 1 and Fig. 2
Shown first terminal equipment 110.
As illustrated, equipment 900 includes controller 910.The operation of the control device 900 of controller 910 and function.For example,
In certain embodiments, controller 910 can be performed by means of the instruction 930 stored in coupled memory 920
Various operations.Memory 920 can apply to any suitable type of local technical environment, and can utilize any conjunction
Suitable data storage technology realizes that including but not limited to the memory device based on semiconductor, magnetic memory device and system, light are deposited
Memory device and system.Although illustrate only a memory cell in Fig. 9, there can be multiple physics in equipment 900
Different memory cells.
Controller 910 can apply to any suitable type of local technical environment, and can include but unlimited
In all-purpose computer, special-purpose computer, microcontroller, digital signal controller (DSP) and more nuclear control based on controller
One or more of device framework is multiple.Equipment 900 can also include multiple controllers 910.Controller 910 and transceiver 940
Coupling, transceiver 940 can realize the reception of information and transmission by means of one or more antennas 950 and/or miscellaneous part.
When equipment 900 serves as the network equipment 130, controller 910 and transceiver 940 can be with compounding practices, with realization
The method 300 that literary reference chart 3 describes.When equipment 900 serves as first terminal equipment 110, controller 910 and transceiver 940 can
With compounding practice, to realize the method 600 above with reference to Fig. 6 descriptions.For example, in certain embodiments, it is above-described all
Being related to the action of data/information transmitting-receiving can be performed by transceiver 940, and other actions can be performed by controller 910.Above
All features with reference to described by figure 3 and Fig. 6 are applied to equipment 900, will not be repeated here.
In general, the various example embodiments of the disclosure can in hardware or special circuit, software, logic, or its
What implements in combining.Some aspects can be implemented within hardware, and other aspect can by controller, microprocessor or
Implement in the firmware or software of other computing devices.When each side of embodiment of the disclosure is illustrated or described as frame
When figure, flow chart or other some figures of use represent, it will be understood that square frame described herein, device, system, techniques or methods can
Using in terms of as nonrestrictive example in hardware, software, firmware, special circuit or logic, common hardware or controller or other
Calculate and implement in equipment, or its some combination.
As an example, the implementation woods of the disclosure can be described in the context of machine-executable instruction, machine can be held
Row instruction is such as included in the program module performed in the device on the true or virtual processor of target.In general,
Program module includes routine, program, storehouse, object, class, component, data structure etc., and it performs specific task or realized specific
Abstract data structure.In embodiments, the function of program module can merge between described program module or
Segmentation.Machine-executable instruction for program module can perform in local or distributed apparatus.In distributed apparatus
In, program module can be located locally with both remote medium storages.
For realizing that the computer program code of disclosed method can be write with one or more programming languages.These
Computer program code can be supplied to the processing of all-purpose computer, special-purpose computer or other programmable data processing units
Device so that program code by computer or other programmable data processing units execution when, cause flow chart and/
Or function/operation is carried out specified in block diagram.Program code can completely on computers, part on computers, conduct
Independent software kit, part are on computers and part is held on remote computer or server on the remote computer or completely
OK.
In the context of the disclosure, machine readable media can include or store to be used to or be related to instruct to perform system
Any tangible medium of the program of system, device or equipment.Machine readable media can be that machine-readable signal medium or machine can
Read storage medium.Machine readable media can include but is not limited to electronics, magnetic, it is optical, electromagnetism, infrared or partly lead
System system, device or equipment, or its any appropriate combination.The more detailed example of machinable medium includes carrying one
Or the electrical connections of multiple conducting wires, portable computer diskette, hard disk, random access memories (RAM), read-only storage
(ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), light storage device, magnetic storage apparatus, or its is any appropriate
Combination.
In addition, although operation is depicted with particular order, but this and should not be construed and require this generic operation to show
Particular order is completed with sequential order, or performs the operations of all diagrams to obtain expected result.In some cases, it is more
Task or parallel processing can be beneficial.Similarly, although discussed above contain some specific implementation details, this is not
The scope for limiting any invention or claim is should be interpreted that, and should be interpreted that the specific embodiment to specific invention can be directed to
Description.Some features in this specification described in the context of separated embodiment can also combined implementation in single reality
Apply in example.Conversely, various features described in the context of single embodiment can also discretely multiple embodiments or
Implement in any appropriate sub-portfolio.
Although theme is described with the language specific to architectural feature and/or method action, but it is to be understood that institute
The theme limited in attached claim is not limited to above-described special characteristic or action.On the contrary, above-described specific spy
Action of seeking peace is disclosed as the exemplary forms for realizing claim.
Claims (28)
1. a kind of communication means, including：
At the network equipment, it is determined that for transmitting candidate configuration of the uplink sub-frames of lead code under multiple predetermined conditions,
The predetermined condition is related to up-link or downlink transmission situation；And
The instruction of the configuration is sent to terminal device, so that the terminal device configures the uplink according to the instruction
Way frame.
2. according to the method for claim 1, wherein determining for the uplink sub-frames for transmitting lead code multiple predetermined
Under the conditions of candidate configuration include：
Determine the first candidate configuration that the uplink sub-frames are located at after predetermined subframe.
3. according to the method for claim 2, wherein the predetermined subframe, which is downlink, terminates subframe.
4. according to the method for claim 1, wherein determining for the uplink sub-frames for transmitting lead code multiple predetermined
Under the conditions of candidate configuration include：
It is determined that the uplink sub-frames are located at the second candidate in special subframe in the case of being 4 in the form of the lead code
Configuration.
5. according to the method for claim 1, wherein determining for the uplink sub-frames for transmitting lead code multiple predetermined
Under the conditions of candidate configuration include：
It is determined that on described in the case where the terminal device knows one or more of data frame predetermined uplink subframe
Uplink subframe is located at the 3rd candidate configuration in the one or more predetermined uplink subframes known.
6. according to the method for claim 1, wherein determining for the uplink sub-frames for transmitting lead code multiple predetermined
Under the conditions of candidate configuration include：
It is determined that in the uplink sub-frames in the case that downlink is in silent status after independent discovery signal
4th candidate configures.
7. according to the method for claim 1, wherein determining for the uplink sub-frames for transmitting lead code multiple predetermined
Under the conditions of candidate configuration include：
It is determined that the uplink in the case where the terminal device detects the continuous empty frame of predetermined number from data frame
Fiveth candidate configuration of the way framing bit after the continuous empty frame of the predetermined number.
8. a kind of communication means, including：
At terminal device, from the network equipment receive for transmit lead code uplink sub-frames under multiple predetermined conditions
The instruction of candidate's configuration；
Based on the up-link at the terminal device or downlink transmission situation, quilt in the multiple predetermined condition is determined
The condition of satisfaction；And
Based on candidate's configuration corresponding to the instruction and the condition being satisfied, candidate is selected to match somebody with somebody in being configured from the candidate
Put, to set the uplink sub-frames for being used to transmit lead code.
9. according to the method for claim 8, wherein selection candidate's configuration includes：
The uplink sub-frames are arranged on the first candidate configuration after predetermined subframe by selection.
10. according to the method for claim 9, wherein the predetermined subframe, which is downlink, terminates subframe.
11. according to the method for claim 8, wherein selection candidate's configuration includes：
Form in response to the lead code is 4, and select the uplink sub-frames being arranged in special subframe second waits
Arrangement.
12. according to the method for claim 8, wherein selection candidate's configuration includes：
In response to knowing one or more of data frame predetermined uplink subframe, select to set the uplink sub-frames
The 3rd candidate configuration in the one or more predetermined uplink subframes known.
13. according to the method for claim 8, wherein selection candidate's configuration includes：
Silent status is in response to downlink, selects the uplink sub-frames being arranged on after independent discovery signal
4th candidate configures.
14. according to the method for claim 8, wherein selection candidate's configuration includes：
Continuous empty frame in response to detecting predetermined number from data frame, selects the uplink sub-frames being arranged on institute
State the 5th candidate configuration after the continuous empty frame of predetermined number.
15. a kind of network equipment, including：
Controller, it is configured to determine that candidate of the uplink sub-frames under multiple predetermined conditions for transmitting lead code matches somebody with somebody
Put, the predetermined condition is related to up-link or downlink transmission situation；And
Transceiver, it is configured as sending the instruction of the configuration to terminal device, so that the terminal device is according to the instruction
To configure the uplink sub-frames.
16. the network equipment according to claim 15, wherein the controller is configured as：
Determine the first candidate configuration that the uplink sub-frames are located at after predetermined subframe.
17. the network equipment according to claim 16, wherein the predetermined subframe, which is downlink, terminates subframe.
18. the network equipment according to claim 15, wherein the controller is configured as：
It is determined that the uplink sub-frames are located at the second candidate in special subframe in the case of being 4 in the form of the lead code
Configuration.
19. the network equipment according to claim 15, wherein the controller is configured as：
It is determined that on described in the case where the terminal device knows one or more of data frame predetermined uplink subframe
Uplink subframe is located at the 3rd candidate configuration in the one or more predetermined uplink subframes known.
20. the network equipment according to claim 15, wherein the controller is configured as：
It is determined that in the uplink sub-frames in the case that downlink is in silent status after independent discovery signal
4th candidate configures.
21. the network equipment according to claim 15, wherein the controller is configured as：
It is determined that the uplink in the case where the terminal device detects the continuous empty frame of predetermined number from data frame
Fiveth candidate configuration of the way framing bit after the continuous empty frame of the predetermined number.
22. a kind of terminal device, including：
Transceiver, be configured as from the network equipment receive for transmit lead code uplink sub-frames under multiple predetermined conditions
Candidate configuration instruction；And
Controller, it is configured as based on the up-link at the terminal device or downlink transmission situation, it is determined that described
The condition being satisfied in multiple predetermined conditions, and configured based on candidate corresponding to the instruction and the condition being satisfied,
Candidate's configuration is selected in being configured from the candidate, to set the uplink sub-frames for being used to transmit lead code.
23. terminal device according to claim 22, wherein the controller is configured as：
The uplink sub-frames are arranged on the first candidate configuration after predetermined subframe by selection.
24. terminal device according to claim 23, wherein the predetermined subframe, which is downlink, terminates subframe.
25. terminal device according to claim 22, wherein the controller is configured as：
Form in response to the lead code is 4, and select the uplink sub-frames being arranged in special subframe second waits
Arrangement.
26. terminal device according to claim 22, wherein the controller is configured as：
In response to knowing one or more of data frame predetermined uplink subframe, select to set the uplink sub-frames
The 3rd candidate configuration in the one or more predetermined uplink subframes known.
27. terminal device according to claim 22, wherein the controller is configured as：
Silent status is in response to downlink, selects the uplink sub-frames being arranged on after independent discovery signal
4th candidate configures.
28. terminal device according to claim 22, wherein the controller is configured as：
Continuous empty frame in response to detecting predetermined number from data frame, selects the uplink sub-frames being arranged on institute
State the 5th candidate configuration after the continuous empty frame of predetermined number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801556.XA CN107800523B (en) | 2016-09-02 | 2016-09-02 | Method and apparatus for configuring random access channel resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801556.XA CN107800523B (en) | 2016-09-02 | 2016-09-02 | Method and apparatus for configuring random access channel resources |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107800523A true CN107800523A (en) | 2018-03-13 |
| CN107800523B CN107800523B (en) | 2021-03-19 |
Family
ID=61530561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610801556.XA Active CN107800523B (en) | 2016-09-02 | 2016-09-02 | Method and apparatus for configuring random access channel resources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107800523B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192508A1 (en) * | 2018-04-06 | 2019-10-10 | Mediatek Inc. | Design for initial access in new radio unlicensed spectrum |
| CN110621081A (en) * | 2018-06-19 | 2019-12-27 | 维沃移动通信有限公司 | Random access method and terminal equipment |
| CN113261375A (en) * | 2018-12-28 | 2021-08-13 | 中兴通讯股份有限公司 | Method, apparatus and system for reducing access delay in wireless communications |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562896A (en) * | 2008-04-16 | 2009-10-21 | 中兴通讯股份有限公司 | Stochastic access method based on reinforced-special transmission channel |
| CN102138360A (en) * | 2008-07-01 | 2011-07-27 | 爱立信电话股份有限公司 | Method and device for performing preamble assignment for random access in a telecommunication system |
| CN102783238A (en) * | 2010-04-06 | 2012-11-14 | 上海贝尔股份有限公司 | Random access method and base station for wireless relay communication system |
| US20130315152A1 (en) * | 2012-05-24 | 2013-11-28 | Nokia Siemens Networks Oy | Using Unique Preambles for D2D Communications in LTE |
| WO2016085287A1 (en) * | 2014-11-27 | 2016-06-02 | 엘지전자 주식회사 | Random access method and apparatus therefor |
| CN105704834A (en) * | 2016-04-01 | 2016-06-22 | 宇龙计算机通信科技(深圳)有限公司 | Configuration method and sending method for lead code on non-authorized carrier and related equipment |
| CN105848165A (en) * | 2015-01-14 | 2016-08-10 | 中兴通讯股份有限公司 | Unauthorized resource use methods and system, base station, and user equipment |
| CN105898883A (en) * | 2016-04-01 | 2016-08-24 | 宇龙计算机通信科技(深圳)有限公司 | Preamble configuring method, preamble sending method and related equipment |
-
2016
- 2016-09-02 CN CN201610801556.XA patent/CN107800523B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562896A (en) * | 2008-04-16 | 2009-10-21 | 中兴通讯股份有限公司 | Stochastic access method based on reinforced-special transmission channel |
| CN102138360A (en) * | 2008-07-01 | 2011-07-27 | 爱立信电话股份有限公司 | Method and device for performing preamble assignment for random access in a telecommunication system |
| CN103957604A (en) * | 2008-07-01 | 2014-07-30 | 爱立信电话股份有限公司 | Methods and apparatuses for performing preamble assignment for random access in a telecommunications system |
| CN102783238A (en) * | 2010-04-06 | 2012-11-14 | 上海贝尔股份有限公司 | Random access method and base station for wireless relay communication system |
| US20130315152A1 (en) * | 2012-05-24 | 2013-11-28 | Nokia Siemens Networks Oy | Using Unique Preambles for D2D Communications in LTE |
| WO2016085287A1 (en) * | 2014-11-27 | 2016-06-02 | 엘지전자 주식회사 | Random access method and apparatus therefor |
| CN105848165A (en) * | 2015-01-14 | 2016-08-10 | 中兴通讯股份有限公司 | Unauthorized resource use methods and system, base station, and user equipment |
| CN105704834A (en) * | 2016-04-01 | 2016-06-22 | 宇龙计算机通信科技(深圳)有限公司 | Configuration method and sending method for lead code on non-authorized carrier and related equipment |
| CN105898883A (en) * | 2016-04-01 | 2016-08-24 | 宇龙计算机通信科技(深圳)有限公司 | Preamble configuring method, preamble sending method and related equipment |
Non-Patent Citations (2)
| Title |
|---|
| ZTE MICROELECTRONICS TECHNOLOGY等: "PRACH Design for LAA", 《3GPP TSG RAN WG1 MEETING #84BIS》 * |
| ZTE: "PRACH Design for LAA", 《3GPP TSG RAN WG1 MEETING #85》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192508A1 (en) * | 2018-04-06 | 2019-10-10 | Mediatek Inc. | Design for initial access in new radio unlicensed spectrum |
| US11490428B2 (en) | 2018-04-06 | 2022-11-01 | Mediatek Inc. | Initial access in new radio unlicensed spectrum |
| CN110621081A (en) * | 2018-06-19 | 2019-12-27 | 维沃移动通信有限公司 | Random access method and terminal equipment |
| CN110621081B (en) * | 2018-06-19 | 2021-03-23 | 维沃移动通信有限公司 | Random access method and terminal equipment |
| CN113261375A (en) * | 2018-12-28 | 2021-08-13 | 中兴通讯股份有限公司 | Method, apparatus and system for reducing access delay in wireless communications |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107800523B (en) | 2021-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12206625B2 (en) | Method, terminal device, base station, computer readable medium for measuring cross-link interference, and methods and apparatuses for random access preamble allocation, determination, and data transmission | |
| EP3713130B1 (en) | Method and apparatus for configuring reference signal channel characteristics, and communication device | |
| CN105940699B (en) | User device, base station, and communication method | |
| US20230198699A1 (en) | Reference signal configuration, information transmission, and information receiving methods and device | |
| WO2021026230A1 (en) | Uplink repetition configuration | |
| CN111901020A (en) | Power control parameter determination method, equipment and storage medium | |
| JP7666604B2 (en) | User equipment, user equipment method, network device, and network device method | |
| WO2019029328A1 (en) | Method and device for configuring reference signal | |
| BR112020002508A2 (en) | scalable process to indicate beam selection | |
| CN115804187B (en) | System and method for determining transmission information | |
| BR112019026107A2 (en) | return of channel status information for flexible uplink control signaling | |
| CN109479306A (en) | User equipment, base station and method | |
| CN104272631B (en) | Method and apparatus for enhancing coverage | |
| JP2023524309A (en) | Method and user equipment for multi-transmit/receive point operation | |
| CN109906576A (en) | Identifying resources for transmitting a first uplink channel | |
| KR102790258B1 (en) | Wireless communication method for determining spatial relationship and power control parameters for uplink signals | |
| CN102742308A (en) | UE-initiated frequency partition-based CoMP scheme for downlink cellular communication | |
| US10469146B1 (en) | Reducing hypothesis search for multi-panel precoder selection | |
| JP7652259B2 (en) | User Equipment and Method | |
| CN111373708A (en) | Resource allocation method for sub-PRB uplink transmission | |
| WO2022150484A1 (en) | Methods of mapping multiple sd-fd bases per csi-rs port for type ii port selection codebook | |
| CN107800523A (en) | Method and apparatus for allocating random access channel resource | |
| CN109150436A (en) | Method and apparatus for downlink control | |
| US20240389162A1 (en) | Systems, methods, and non-transitory computer-readable media for transmission mode switching | |
| KR20170065612A (en) | Weighted aggregation-based method and device for transmitting control signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |