CN107517501A - A kind of accidental access method and device - Google Patents
A kind of accidental access method and device Download PDFInfo
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- CN107517501A CN107517501A CN201610425560.0A CN201610425560A CN107517501A CN 107517501 A CN107517501 A CN 107517501A CN 201610425560 A CN201610425560 A CN 201610425560A CN 107517501 A CN107517501 A CN 107517501A
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- access signal
- accidental access
- prach
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Abstract
This application discloses a kind of distribution method and device of physical accidental access-in resource, this method includes：Multiple Physical Random Access Channels in multiple continuous subframes of network equipment assignment period, one of successful subframes of LBT are selected to send accidental access signal in multiple subframe terminals of distribution, the probability that terminal is sent in assignment period is improved, reduces access delay.
Description
Technical field
The application is related to wireless communication technology field, more particularly to a kind of physical accidental cut-in method and device.
Background technology
GSM of the present invention, refer to operator by disposing wireless access network equipment (such as base station), and core
Heart net equipment (such as attaching position register, Home Location Register, HLR) etc., carried for user terminal (such as mobile phone)
For the system of communication service.Mobile communication experienced the first generation, the second generation, the third generation, forth generation.First third-generation mobile communication refers to
Initial simulation, the cellular telephony standard for only limiting voice call, mainly using analogue technique and frequency division multiple access
The cut-in method of (Frequency Division Multiple Access, FDMA)；Generation Mobile Telecommunication System introduces numeral
Technology, improve network capacity, improve speech quality and confidentiality, with " global system for mobile communications " (Global System
For Mobile Communication, GSM) and " CDMA " (Code Division Multiple Access, CDMA
IS-95) it is representative；3G (Third Generation) Moblie refers mainly to CDMA2000, and tri- kinds of technologies of WCDMA, TD-SCDMA, are more with code division
Location is as access technology；The standard of forth generation GSM is relatively uniform in the world, is International Organization for standardization
Long Term Evolution (Long Term Evolution/Long the Term Evolution-Advanced, LTE/LTE- that 3GPP is formulated
A), its it is descending based on orthogonal frequency more directly enter (Orthogonal Frequency Division Multiple Access,
OFDMA), it is up that (Single Carrier-Frequency Division Multiple are directly entered based on single carrier frequency division more
Access, SC-FDMA) access way, according to flexible bandwidth and adaptive modulation coding mode, reached down peak magnitude
Speed 1Gbps, upstream peak speed 500Mbps high-speed transfer.Fig. 1 schematically illustrates the basic framework of mobile communications network.
MulteFire is on the basis of LTE R13LAA downlink transmission methods, newly defines ascending transmission method, and can
To work independently in the LTE technologies of unauthorized frequency range, i.e. stand-alone LTE-U.One eNB TXOP as shown in Fig. 2 its
Middle sPUCCH last 4 symbols for taking up-downgoing switching subframe, the position of up-downgoing switching subframe can be by current
Or C-PDCCH in previous subframe is indicated.PRACH in MF in support two kinds of PRACH format, i.e. sPUCCH
PRACH (abbreviation mf-ePRACH) in (abbreviation mf-sPRACH) and ePUCCH.
The ascending resource of assignment period is supported in MF, wherein just include PRACH resources, the periodic ascending resource
Purposes can be rewritten by eNB, such as by distributing and transmitting downlink resource., now, then UE is done before using the ascending resource
LBT will be unsuccessful, so as to avoid up-downgoing interference problem.In addition, UE is sent in the PRACH resources for initiating periodically configuration
Before preamble, it may not be necessary to solve C-PDCCH.
To sum up, in MF, due to allow UE do not read C-PDCCH (may be used to indicate sPUCCH, TXOP length etc. believe
Breath) in the case of in the PRACH resource locations of configuration directly initiate Stochastic accessing, how between ensureing to send PRACH UE
And on the premise of orthogonal between PRACH and PUCCH/PUSCH, power consumption/time delay that UE sends PRACH is reduced, improve PRACH
Sending probability etc..
The content of the invention
The present invention proposes a kind of distribution method of periodic physical random access resource, network equipment assignment period
Multiple Physical Random Access Channels in multiple continuous subframes, one of LBT successes are selected in multiple subframe terminals of distribution
Subframe send accidental access signal, improve the probability that terminal is sent in assignment period, reduce access delay.
The present invention proposes a kind of distribution method of physical accidental access-in resource, it is characterised in that methods described includes：
The time-domain resource position that the periodic physical accidental in this cell accesses signal PRACH is broadcasted by system message
Configured with frequency domain resource position, the periodically physical accidental access signal time-domain resource includes N number of continuous subframes, wherein N
For positive integer；Aperiodic physical accidental access signal PRACH time-domain resource position is configured by downwards public control information
With frequency domain resource position, or the time domain that aperiodic physical accidental accesses signal PRACH configured by downwards public control information
Resource location.
The time-domain resource position of the periodically physical accidental access signal PRACH connects including periodic physical accidental
Enter the cycle of signal, and periodically transmission window length of the physical accidental access signal in a cycle, the transmission window
Length can be represented by number of subframes N, and the original position of transmission window.
The continuous subframes number M that the periodically physical accidental access signal PRACH can take in transmission window length
It can be indicated by system message, the M is less than or equal to N.
In the periodic physical accidental access signal transmission window of the system message configuration, short Stochastic accessing letter can configure
Number mf-sPRACH and/or extension accidental access signal mf-ePRACH sequence index, the short accidental access signal mf-
SPRACH takes the preceding L OFDM symbol transmission (L, K positive integer and L≤K) in the last K OFDM symbol of a subframe, described
The OFDM symbol that extension accidental access signal mf-ePRACH takes one or more subframes is transmitted.
In the periodic physical accidental access signal transmission window of the system message configuration, short Stochastic accessing letter can configure
Number mf-sPRACH and/or extension accidental access signal mf-ePRACH sequence index, the short accidental access signal mf-
SPRACH takes the transmission of a subframe last K OFDM symbol, the extension accidental access signal mf-ePRACH occupancy 1 or
Multiple subframes are transmitted.Beginnings of the extension accidental access signal mf-ePRACH in a subframe can be included in system information
Position, starting positions of the configuration extension accidental access signal mf-ePRACH in subframe is the 0th ODFM symbol or the 1st
ODFM symbols.
Signal configuration, which can be accessed, by system message for the periodically physical accidental can transmit the preferential of detection LBT
Level, the one or more that the priority parameters include but is not limited in following parameter, energy measuring thresholding, Backoff window are big
It is small, idle time of channel length.
The periodically physical accidental access signal PRACH and acyclic physical accidental access signal frequency domain money
Source position, using interlace as frequency domain unit, can specifically be indicated by way of bit map multiple PRACH resources or
Multiple interlace of one PRACH resource occupation, or to be initially value indexed mode instruction interlace numberings.It is different
Subframe can configure identical or different PRACH frequency domain positions, and the frequency domain position of different subframes can be different.
Match somebody with somebody the time-domain resource position that the downwards public control information configures aperiodic physical accidental access signal PRACH
The method of putting is to indicate whether include accidental access signal transmission opportunity in the subframe where the downwards public control information, and/or
Indicate whether include accidental access signal transmission opportunity in k-th subframe below, the K is positive integer.
Terminal receives the time-domain resource for the periodic physical accidental access signal PRACH that base station is sent in system message
Position and the configuration of frequency domain resource position.Terminal configures and transmitted uplink random access signal according to described information.The cycle
Property physical accidental access signal PRACH time-domain resource position include cycle of periodic physical accidental access signal, with
And periodically transmission window length of the physical accidental access signal in a cycle, the transmission window length can pass through number of sub frames
Mesh N is represented, and the original position of transmission window.
Terminal reads short accidental access signal mf-sPRACH and/or extension accidental access signal mf- in system message
EPRACH configuration, the configuration include but is not limited to sequence index.Terminal is not reading the situation of downwards public control information
Under periodic physical accidental access signal transmission window original position before carry out can transmit detection LBT, if LBT success,
Include but is not limited to physical accidental access signal PRACH sequence index and frequency domain resource position letter according to what is configured in system message
Cease transmitting physical accidental access signal；If LBT fails, and also has in the physical accidental access signal transmission window in current period
PRACH resources can be transmitted, then continue LBT, attempt next PRACH chances；If the physical accidental in current period connects
Enter LBT in signal transmission window to fail, then wait next cycle to reattempt to LBT and accidental access signal transmission.
Terminal reads short accidental access signal mf-sPRACH and/or extension accidental access signal mf- in system message
EPRACH configuration, the configuration includes but is not limited to sequence index, and K of the terminal before accidental access signal transmission window is descending
Downwards public control information is detected in subframe and in accidental access signal transmission window.If detect in downwards public control information
Comprising aperiodic physical accidental access signal PRACH configuration, and terminal is in the transmission window and last descending sub frame
LBT successes before last K OFDM symbol in the subframe of coincidence, then send short accidental access signal mf-sPRACH；If LBT loses
Lose, and also have PRACH resources to transmit in the physical accidental access signal transmission window in current period, then continue LBT, taste
Try next PRACH chances；If LBT fails in the physical accidental access signal transmission window in current period, wait next
The individual cycle reattempts to LBT and accidental access signal is sent.
When other up channel/signals and PRACH are in same subframe, the network equipment is by distributing different frequency resources
Realize multiplexing in position
To sum up, the invention provides a kind of effective accidental access method, particularly when unauthorized frequency range uses.
Brief description of the drawings
Fig. 1 is the network architecture schematic diagram using the present invention
Fig. 2 is transmission frame-form schematic diagram of the present invention
Fig. 3 is the random access window schematic diagram of present pre-ferred embodiments one
Fig. 4 is the random access procedure schematic diagram of present pre-ferred embodiments one
Specific implementation method
For the object, technical solution and advantage of the application are more clearly understood, develop simultaneously embodiment referring to the drawings, right
The application is described in further detail.
Embodiment one：PRACH resource allocations and instruction based on periodic windows
The PRACH configuration informations of this cell are indicated in system message such as mfSIB, wherein PRACH configuration can include
At least two, i.e. periodicity PRACH resources and aperiodicity PRACH resources.Refer to be assigned with for periodicity PRACH resources
The subframe of PRACH resources only will periodically occur in the resource location that may be specified, but be whether that the subframe is necessarily used for
PRACH transmission depends on eNB actual schedules, the channel competition situation of eNB sides, the channel competition situation of UE sides.For example, work as eNB
The a certain PRACH specified resource location and before i.e. start send downstream signal, then UE do not reading down control channel
When (such as C-PDCCH), even if the PRACH resources for still attempting to specify at this are transmitted, but can due to LBT failure and nothing
Method is sent, and finally realizes that eNB controls the purpose used of the resource.In order to realize the relatively flexible up-downgoings of eNB simultaneously
Resource distribution, and the validity of the periodicity PRACH resources of distribution is improved, PRACH resources can be carried out in the form of subframe window
Periodically distribution, terminal have multiple PRACH transmission opportunitys in subframe window, as shown in Figure 3.
Wherein PRACH windows are made up of multiple continuous subframes, and its cycle and original position can be by indicating respectively difference
Deviation post in cycle, such as：
Its window, which is grown, to be represented by number of subframes, such as
PRACH-OccasionDuration-MF CHOICE{
duration-MF INTEGER(1..maxPRACH-Duration)
},
When PRACH window interior all subframes acquiescence is configured PRACH resources, without extra instruction.When
When PRACH window interior part subframe is configured PRACH resources, it is also necessary to further sons of the instruction PRACH in window
Frame position, such as flexible subframe position is indicated in a manner of bitmap, or refer in a manner of index combines fixed pattern
Show subframe position (such as mod (subframe number, N) mode) etc..
For PRACH frequency domain resource position, using interlace as frequency domain unit, can be referred to by way of bitmap
Show multiple PRACH resources or multiple interlace that PRACH takes, or index modes indicate PRACH's
Interlace numberings or Base Serial Number etc..Different subframes can configure identical or different PRACH frequency domain positions, equally
Frequency hopping can be supported.
It can be the different window of mf-ePRACH with mf-sPRACH assignment configurations, or configure same window.
As the PRACH being configured with PRACH window in multiple subframes, each it is configured with PRACH subframes corresponding
PRACH format, can be only all mf-ePRACH；Or one of subframe (such as first subframe) is only mf-
Remaining subframe of sPRACH is only mf-ePRACH；Or one of subframe is mf-sPRACH or mf-ePRACH (the present mf- of UE
LBT is carried out before ePRACH resources, LBT is carried out before mf-sPRACH resource again if unsuccessful), remaining subframe is only mf-
ePRACH。
As the PRACH being configured with PRACH window in 1 subframe, PRACH format corresponding to the subframe can be with
Only mf-sPRACH, either only mf-ePRACH or be mf-sPRACH or mf-ePRACH.
LBT type and priority：Can be defaulted as that (25us can be defaulted as mf-sPRACH using LBT cat-4
LBT cat-2), the priority specifically used can provide in advance or according to eNB system message instruction, for based on tune
The non-competing Random Access of degree can be according to the LBT type and priority of instruction, for can determine the TXOP in eNB
Within PRACH can use 25us LBT cat-2.
LBT gap (first symbol of subframe is vacated for carrying out LBT)：Due to the son where PRACH can not be determined in advance
Whether frame punch for LBT gap to first OFDM symbol, in order to reduce the PRACH and PUSCH/ in same subframe
Block between ePUCCH, mf-ePRACH original position can be given tacit consent to from second sign-on, alternatively, if UE energy
Enough positional informations for obtaining LBT gap from C-PDCCH in advance, can mf-ePRACH can be from the case of without LBT gap
First sign-on.Or acquiescence mf-ePRACH, from a sign-on, eNB is not in mf-ePRACH sub-frame configuration
LBT gap, alternatively, if UE can obtain LBT gap positional information according to C-PDCCH, in LBT gap subframes
Mf-ePRACH is from second sign-on.
Random access procedure is described as follows:
Step 401, user reads the broadcast message that base station is sent, and obtains periodic PRACH resource distributions.
Step 402, the cycle in PRACH resource distributions and window information, user in random access window
One available subframe carries out LBT detections.
Step 403, if LBT testing results show to allow signal to transmit, user then sends accidental access signal.
Step 404, if LBT testing results show not allow signal transmission and next subframe is still in window phase, use
Family then waits next available subframe in random access window to do LBT detections again, until window LBT detects successfully to enter
Enter step 403.
Step 405, if LBT testing results show not allow signal transmission and next subframe is not in window phase, use
Family then waits next Stochastic accessing cycle.
Embodiment two：PRACH based on C-PDCCH instructions
UE can confirm sPUCCH position after C-PDCCH is read, according to the configuration of mf-sPRACH frequency domain resource (i.e.
Aperiodic PRACH resources in system message), mf-sPRACH is sent in sPUCCH.In order to reach the purpose of UE power savings, UE
C-PDCCH can be only detected within the specific period, such as is configured with PRACH periodic windows, in DRS windows, Paging
In window.
The preferred embodiment of the application is the foregoing is only, not limiting the application, all essences in the application
God and any modification within principle, made, equivalent substitution, improve etc., it should be included within the protection domain of the application.
Mobile communication particular technique described in the present invention is unlimited, can be WCDMA, CDMA2000, TD-SCDMA,
WiMAX, LTE/LTE-A, LAA, MulteFire and the 5th generation being subsequently likely to occur, the 6th generation, N-Generation mobile communication skill
Art
Terminal described in the present invention, refer to the end side product for the communication protocol that can support land mobile communication system,
The modem module (Wireless Modem) of special communication, it can be various types of by mobile phone, tablet personal computer, data card etc.
The terminal form of type is integrated so as to complete communication function
For convenience of description, using forth generation GSM LTE/LTE-A and its derivative MulteFire as act
Example, wherein mobile communication terminal is expressed as UE (User Equipment), and access device is expressed as base station or access point AP.
Term is explained：
Claims (16)
1. a kind of distribution method of physical accidental access-in resource, it is characterised in that methods described includes：
Time-domain resource position and frequency that the periodic physical accidental in this cell accesses signal PRACH are broadcasted by system message
Domain resource location configuration, the periodically physical accidental access signal time-domain resource include N number of continuous subframes, and wherein N is just
Integer；Aperiodic physical accidental access signal PRACH time-domain resource position and frequency is configured by downwards public control information
Domain resource location, or the time-domain resource that aperiodic physical accidental accesses signal PRACH is configured by downwards public control information
Position.
2. according to the method for claim 1, it is characterised in that the periodically physical accidental access signal PRACH's
Time-domain resource position includes the cycle of periodic physical accidental access signal, and periodically physical accidental access signal exists
Transmission window length in a cycle, the transmission window length can be represented by number of subframes N, and the start bit of transmission window
Put.
3. according to the method for claim 2, it is characterised in that periodic physics further can be indicated by system message
Continuous subframes the number M, the M that accidental access signal PRACH can take in transmission window length are less than or equal to N.
4. according to the method for claim 2, the periodic physical accidental for system message configuration accesses signal and passed
In defeated window, configure short accidental access signal mf-sPRACH and/or extend accidental access signal mf-ePRACH sequence index, institute
State the preceding L OFDM symbol that short accidental access signal mf-sPRACH is taken in the last K OFDM symbol of a subframe and transmit (L, K
Positive integer and L≤K), the OFDM symbol that the extension accidental access signal mf-ePRACH takes one or more subframes is passed
It is defeated.
5. according to the method for claim 2, the periodic physical accidental for system message configuration accesses signal and passed
In defeated window, configure short accidental access signal mf-sPRACH and/or extend accidental access signal mf-ePRACH sequence index, institute
State short accidental access signal mf-sPRACH and take the last K OFDM symbol transmission of a subframe, the extension accidental access signal
Mf-ePRACH takes one or more subframes and is transmitted.
6. extension accidental access signal mf-ePRACH according to the method for claim 5, can be included in system information at one
Starting position in subframe, starting positions of the configuration extension accidental access signal mf-ePRACH in subframe accord with for the 0th ODFM
Number or the 1st ODFM symbol.
7. according to the method for claim 2, access signal by system message for the periodically physical accidental to configure
Detection LBT priority, the one or more that the priority parameters include but is not limited in following parameter, energy inspection can be transmitted
Survey thresholding, Backoff window size, idle time of channel length.
8. according to the method for claim 1, it is characterised in that it is described periodically physical accidental access signal PRACH and
The frequency domain resource position of acyclic physical accidental access signal, using interlace as frequency domain unit, can specifically pass through ratio
The mode of spy's mapping indicates multiple PRACH resources either multiple interlace of PRACH resource occupation or with initial
Interlace numberings are indicated for value indexed mode；Different subframes can configure identical or different PRACH frequency domain positions, no
Frequency domain position with subframe can be different.
9. according to the method for claim 1, it is characterised in that the downwards public control information configures aperiodic physics
Accidental access signal PRACH time-domain resource method for configuring location is to indicate in the subframe where the downwards public control information
Whether include in accidental access signal transmission opportunity, and/or the k-th subframe of instruction below and whether passed comprising accidental access signal
Defeated chance, the K are positive integer.
10. a kind of information transferring method, it is characterised in that methods described includes：
Terminal receives the time-domain resource position for the periodic physical accidental access signal PRACH that base station is sent in system message
Configured with frequency domain resource position；Terminal configures and transmitted uplink random access signal according to described information；It is described periodic
Physical accidental access signal PRACH time-domain resource position includes the cycle of periodic physical accidental access signal, Yi Jizhou
Transmission window length of the physical accidental access signal of phase property in a cycle, the transmission window length can pass through number of subframes N
Represent, and the original position of transmission window.
11. according to the method for claim 10, it is characterised in that terminal reads short accidental access signal in system message
Mf-sPRACH and/or extension accidental access signal mf-ePRACH configuration, the configuration include but is not limited to sequence index, eventually
Hold and carry out that detection LBT can be transmitted before the original position of periodic physical accidental access signal transmission window, if LBT successes,
Include but is not limited to physical accidental access signal PRACH sequence index and frequency domain resource position letter according to what is configured in system message
Cease transmitting physical accidental access signal；If LBT fails, and also has in the physical accidental access signal transmission window in current period
PRACH resources can be transmitted, then continue LBT, attempt next PRACH chances；If the physical accidental in current period connects
Enter LBT in signal transmission window to fail, then wait next cycle to reattempt to LBT and accidental access signal transmission.
12. according to the method described in claim 10, it is characterised in that terminal reads short Stochastic accessing letter in system message
Number mf-sPRACH and/or extension accidental access signal mf-ePRACH configuration, the configuration include but is not limited to sequence index,
And detected in K descending sub frames of the terminal before accidental access signal transmission window and in accidental access signal transmission window descending public
Control information；If detect the aperiodic physical accidental access letter of the aperiodic Stochastic accessing included in downwards public control information
Number PRACH configuration, and terminal is in the subframe that the transmission window overlaps with last descending sub frame before last K OFDM symbol
LBT successes, then send short accidental access signal mf-sPRACH；If LBT fails, and the physical accidental access in current period
There are PRACH resources to transmit in signal transmission window, then continue LBT, attempt next PRACH chances；If in current week
LBT fails in physical accidental access signal transmission window in phase, then waits next cycle to reattempt to LBT and Stochastic accessing letter
Number send.
13. a kind of base station, it is characterised in that the base station includes first processing units, and second processing unit, first sends list
Member, the second transmitting element and the first receiving unit；Wherein：The first processing units, the physical accidental for configuration cycle property
Access signal PRACH time-domain resource position and the configuration of frequency domain resource position, the periodically physical accidental access signal
PRACH time-domain resource position includes the cycle of periodic physical accidental access signal, and periodically physical accidental connects
Entering transmission window length of the signal in a cycle, the transmission window length can be represented by number of subframes N, and transmission window
Original position；The second processing unit, for configuring aperiodic physical accidental access signal PRACH time-domain resource position
With frequency domain resource position；
First transmitting element, for sending the access signal of the periodic physical accidental in this cell in system message
PRACH time-domain resource position and the configuration of frequency domain resource position；Second transmitting element, in downwards public control information
Aperiodic physical accidental access signal PRACH time-domain resource position and frequency domain resource position are sent, or is sent aperiodic
Physical accidental access signal PRACH time-domain resource position；First receiving unit, in the periodicity that is configured and non-
Whether periodic physical accidental access signal video resource position detection terminal have sent accidental access signal.
14. a kind of terminal, it is characterised in that the terminal includes：3rd receiving unit, the 3rd processing unit and the 3rd send list
Member；Wherein, the 3rd receiving unit, letter is accessed for receiving the periodic physical accidental that base station is sent in system message
Number PRACH time-domain resource position and the configuration of frequency domain resource position；
3rd processing unit, for handling the time domain of the periodicity received and aperiodicity accidental access signal PRACH
Resource location and the configuration of frequency domain resource position；
3rd transmitting element, for transmitting uplink random access signal according to the configuration of accidental access signal；The cycle
Property physical accidental access signal PRACH time-domain resource position include cycle of periodic physical accidental access signal, with
And periodically transmission window length of the physical accidental access signal in a cycle, the transmission window length can pass through number of sub frames
Mesh N is represented, and the original position of transmission window.
15. terminal according to claim 14, it is characterised in that terminal reads short accidental access signal in system message
Mf-sPRACH and/or extension accidental access signal mf-ePRACH configuration, the configuration include but is not limited to sequence index, eventually
Hold and carry out that detection LBT can be transmitted before the original position of periodic physical accidental access signal transmission window, if LBT successes,
Include but is not limited to physical accidental access signal PRACH sequence index and frequency domain resource position letter according to what is configured in system message
Cease transmitting physical accidental access signal；If LBT fails, and also has in the physical accidental access signal transmission window in current period
PRACH resources can be transmitted, then continue LBT, attempt next PRACH chances；If the physical accidental in current period connects
Enter LBT in signal transmission window to fail, then wait next cycle to reattempt to LBT and accidental access signal transmission.
16. according to the terminal described in claim 14, it is characterised in that terminal reads short Stochastic accessing letter in system message
Number mf-sPRACH and/or extension accidental access signal mf-ePRACH configuration, the configuration include but is not limited to sequence index,
And detected in K descending sub frames of the terminal before accidental access signal transmission window and in accidental access signal transmission window descending public
Control information；If detect the aperiodic physical accidental access letter of the aperiodic Stochastic accessing included in downwards public control information
Number PRACH configuration, and terminal is in the subframe that the transmission window overlaps with last descending sub frame before last K OFDM symbol
LBT successes, then send short accidental access signal mf-sPRACH；If LBT fails, and the physical accidental access in current period
There are PRACH resources to transmit in signal transmission window, then continue LBT, attempt next PRACH chances；If in current week
LBT fails in physical accidental access signal transmission window in phase, then waits next cycle to reattempt to LBT and Stochastic accessing letter
Number send.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425560.0A CN107517501A (en) | 2016-06-15 | 2016-06-15 | A kind of accidental access method and device |
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| CN201610425560.0A CN107517501A (en) | 2016-06-15 | 2016-06-15 | A kind of accidental access method and device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192469A1 (en) * | 2018-04-04 | 2019-10-10 | 维沃移动通信有限公司 | Non-competitive random access resource allocation method, terminal device and network device |
| CN110557978A (en) * | 2018-04-04 | 2019-12-10 | 北京小米移动软件有限公司 | Uplink transmission method, device and storage medium |
| CN110636634A (en) * | 2018-06-21 | 2019-12-31 | 维沃移动通信有限公司 | Random access method and related equipment |
| CN110636614A (en) * | 2018-06-21 | 2019-12-31 | 维沃移动通信有限公司 | Random access method, terminal and network equipment |
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| CN110636634A (en) * | 2018-06-21 | 2019-12-31 | 维沃移动通信有限公司 | Random access method and related equipment |
| CN110636614A (en) * | 2018-06-21 | 2019-12-31 | 维沃移动通信有限公司 | Random access method, terminal and network equipment |
| CN110636634B (en) * | 2018-06-21 | 2021-07-13 | 维沃移动通信有限公司 | Random access method and related equipment |
| CN112514505B (en) * | 2018-07-26 | 2023-10-20 | Oppo广东移动通信有限公司 | Resource allocation method and device, terminal equipment and network equipment |
| CN112514505A (en) * | 2018-07-26 | 2021-03-16 | Oppo广东移动通信有限公司 | Resource configuration method and device, terminal equipment and network equipment |
| WO2020024753A1 (en) * | 2018-08-01 | 2020-02-06 | Oppo广东移动通信有限公司 | Random access method, terminal device, and network device |
| CN110831234B (en) * | 2018-08-07 | 2022-05-10 | 华为技术有限公司 | Random access method, communication device, chip and storage medium |
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| CN113647189A (en) * | 2019-04-04 | 2021-11-12 | 上海诺基亚贝尔股份有限公司 | Indication of random access response transmission |
| CN113630859A (en) * | 2020-05-06 | 2021-11-09 | 北京佰才邦技术股份有限公司 | Information confirmation method, terminal equipment and network equipment |
| CN113630859B (en) * | 2020-05-06 | 2023-07-21 | 北京佰才邦技术股份有限公司 | Information confirmation method, terminal equipment and network equipment |
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