CN102905387B - Accidental access method and user equipment - Google Patents
Accidental access method and user equipment Download PDFInfo
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- CN102905387B CN102905387B CN201110208578.2A CN201110208578A CN102905387B CN 102905387 B CN102905387 B CN 102905387B CN 201110208578 A CN201110208578 A CN 201110208578A CN 102905387 B CN102905387 B CN 102905387B
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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
Abstract
The present invention provides a kind of accidental access method and user equipmenies, this method comprises: UE activation is in the auxiliary serving cell SCell of deactivation status；UE carries out random access procedure on SCell.Through the invention, random access procedure is carried out using SCell of the UE activation in deactivation status, it solves SCell and is likely to be at deactivation status, the problem of leading to the correlation step of random access procedure on SCell can not be normally carried out, so that UE can initiate the opportunity of random access with flexible choice on SCell, to improve the success rate of UE random access procedure.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of accidental access method and user equipment.
Background technique
In radio honeycomb communication system, random access procedure (Random Access Procedure) is used for idle shape
Terminal (or being user equipment (UE), User Equipment) the initial access network or connection status of state (RRC IDLE)
The terminal and network of (RRC CONNECTED) carry out uplink synchronous (Uplink synchronization) and obtain resource point
Match, to carry out subsequent data communications.
It is drilled for a long time in third generation partnership project (3GPP, Third Generation Partnership Project)
Into universal land radio access web (E-UTRAN, the Evolved of the evolution of (LTE, Long Term Evolution) system
Universal Terrestrial Radio Access Network, also referred to as enhanced base station eNB) in, six kinds of things below
Part can be with the random access procedure of triggering terminal: (1) idle state is initially accessed；(2) radio resource control connection reestablishment process
(RRC Connection Re-establishment procedure)；(3) switch (HO, Handover)；(4) RRC connection shape
The arrival of state downlink data needs random access procedure, such as when uplink sync status is " asynchronous "；(5) RRC connection status
Upstream data arrival needs random access procedure, for example, when uplink sync status be " asynchronous " or it is available physically
Row control channel (PUCCH, Physical Uplink Control Channel) resource sends scheduling request (SR, Schedule
Request)；(6) RRC connection status is that positioning purpose needs random access procedure, such as UE positioning to need timing advance
(Timing Advance).There are two types of different forms for random access procedure: (Contention Based) competition-based is (suitable
For first five above-mentioned kind event)；(the Non-Contention Based) for being not based on competition (is suitable for above-mentioned (3), (4), (6)
Event).After random access procedure success, normal downlink or uplink transmission can be carried out.
Random access procedure can be accessed by the media of Physical Downlink Control Channel signaling (PDCCH order) or UE and be controlled
Preparative layer (MAC, Medium Access Control) is initiated, optionally, PDCCH order or wireless heterogeneous networks (RRC,
Radio Resource Control) signaling can for UE distribute special random access preamble (Random Access
Preamble), then random access procedure is the mode for being not based on competition；Otherwise UE needs to select random access preamble, then at random
Access procedure is mode competition-based.It includes selection random access preamble and physical accidental access that UE, which selects random access resource,
The time-frequency domain resources etc. of channel (PRACH, Physical Random Access Channel).Random access procedure may need
Once or could repeatedly it succeed, it is also possible to reach maximum times but still failed.ENB is UE by system information 2 (SIB2)
It is pre-configured random access preamble and sends maximum times (preambleTransMax) parameter.
Shown in random access procedure Fig. 1 based on competition (Contention based), including four steps:
Step S102, terminal uplink by random access channel (RACH, Random Access Channel) send with
Machine access lead (Random Access Preamble).
Step S104, the media access control layer (MAC, Medium Access Control) of base station (eNB) generate random
Response message is accessed, is sent to terminal in DSCH Downlink Shared Channel (DL-SCH, Downlink-Shared Channel)；The message
In include at least random access preamble mark (RAPID, Random Access Preamble Identifier), the time adjustment
Information (TA, Time Alignment), initial uplink authorization (UL Grant, Uplink Grant) and Temporary Cell-wireless network
Network temporary identifier (Temporary C-RNTI)；The message passes through in Physical Downlink Control Channel (PDCCH, Physical
Downlink Control Channel) on random access-radio network temporary identifier (RA-RNTI, Random Access-
Radio Network Temporary Identifier) it is indicated；
Step S106, terminal is shared in uplink sends head on transmission channel (UL-SCH, Uplink-Shared Channel)
The transmission (Scheduled Transmission) of a scheduling；The content of the message includes at least cell-wireless network and temporarily marks
Know (C-RNTI) media access control first (MAC Control Element) or public control logic channel Service Data Unit
(CCCH SDU)；Mixing retransmission request (HARQ, Hybrid Automatic Retransmission is supported in the transmission of the message
request)。
Step S108, base station send contention resolution message (Contention Resolution) on DL-SCH；The message
It is indicated by C-RNTI on PDCCH or interim C-RNTI；HARQ is supported in the transmission of the message.
(Non-contention based) random access procedure of competition is not based on as shown in Fig. 2, including three steps；
Terminal distribution random access preamble is given by downlink dedicated signaling in step S202, base station.
The signaling is generated by target BS in a handover situation and is sent out by source base station by switching command (HO Command)
Give terminal；Terminal is sent to by PDCCH when downlink data reaches；
Step S204, terminal send the non-competing random access distributed by random access channel (RACH) in uplink
Leading (Random Access Preamble)；
Step S206, base station send accidental access response message (Random on downlink shared transmission channel (DL-SCH)
Access Response)。
Time adjustment information, random access preamble mark are included at least in the message, also include on initial under switch instances
Row authorization message；The message is indicated by random access-radio network temporary identifier (RA-RNTI) on PDCCH.
In advanced long-term evolution system (LTE-A, Long Term Evolution Advanced), senior long term evolution system
(Long-Term Evolution advanced, LTE-A) (Rel-10) carrier wave of system version 10 of uniting polymerize (Carrier
Aggregation, CA) in downlink and/or most five component carriers (Component Carrier, the CC) polymerizations of uplink difference
Get up to support maximum 100MHz transmission bandwidth, sum configuration of the sum configuration less than or equal to DL CC of UL CC respectively.Terminal
(User Equipment, UE) is respectively configured on downlink main carrier to carry (Downlink Primary CC, DL PCC) and one
Row main carrier (Uplink Primary CC, ULPCC), can configure 0~4 downlink secondary carrier (Downlink Secondary
CC, DL SCC) and/or 0~4 upstream auxiliary carriers (Uplink Secondary CC, UL SCC).UE is initially accessed or switching
The cell (Cell) of access is known as main serving cell (PCell), is made of DL PCC and UL PCC, and DL PCC and UL PCC pass through
It is associated that system information broadcasts information indicated in 2 (SIB2).Because UE service traffics increase or are based on the nothing of base station (eNB)
Line resource management (Radio Resource Management, RRM) demand, base station can pass through wireless heterogeneous networks (Radio
Resource Control, RRC) signaling is that UE increases new cell configuration, newly-increased cell is known as auxiliary serving cell
(SCell), it is made of SIB2 associated DL SCC and UL SCC, or only includes DL SCC.Because UE service traffics are reduced, or
It is currently configured to the cell signal quality variation of UE, or the management of the RRM based on base station, base station can be deleted by RRC signaling
It is allocated to the cell of UE, specifically the configuration information of the uplink and downlink carrier wave including deleted cell.Added above, deletion
The process of cell configuration can occur simultaneously.The angle managed from UE power saving and CC, base station (eNB) can pass through MAC CE
Activation/deactivation SCell, PCell can not be activated/deactivate.UE is not listening to physics on the SCell of deactivation status
Down control channel (PDCCH) does not receive Physical Downlink Shared Channel (PDSCH), (CQI) is indicated without channel quality, is pre-
Encoder matrix indicates the relevant measurement of the channel status instruction such as (PMI), classifying index (RI) (CSI), supports mobility relevant
Measurement, not its Physical Uplink Shared Channel (PUSCH) send data, do not send uplink reference signals (Sounding
Reference Symbols, SRS), it is also possible to including the closing or the operation such as adjusting for radio frequency (RF).After SCell is activated
UE can monitor PDCCH, receive PDSCH, carry out the relevant measurements of CSI such as CQI/PMI/RI, send data, transmission in PUSCH
The operation such as SRS may further include the operation such as unlatching or adjusting of RF.
LTE-ARel-10CA supports single TA (Timing Alignment), and random access mistake is only supported on PCell
Journey.LTE-ARel-11CA supports more TA, for Inter-band and in the case of having RRH (remote radio unit (RRU)), participates in polymerization
Each cell uplink TA there may be difference, need support the random access procedure on SCell to obtain respective TA respectively.
PCell identical for TA or SCell can belong to the same TA group, the synchronization of PCell or SCell in same TA group
State is consistent, and is in uplink sync status or is in uplink loss state, PCell in the same TA group or
SCell is under step loss condition if necessary to obtain uplink synchronous, it is only necessary to carry out on a PCell or SCell wherein random
Access procedure is successfully that this TA group obtains uplink synchronous success.UE can according to the TA timer that it is safeguarded whether time-out come
Judge to be in synchronous or desynchronizing state in PCell and/or SCell.Different TA groups can be used the same TA timer into
Row maintenance, when TA timer expiry, it is believed that PCell, SCell step-out in all TA groups；Different TA groups can make respectively
It is safeguarded with different TA timers, the corresponding TA timer expiry of TA group means PCell, SCell in corresponding TA group
Step-out.If UE does not carry out data transmit-receive in longer period of time, SCell may be in deactivation status, and cannot
It monitors PDCCH and sends upstream data on PUSCH, so that the correlation step of random access procedure can not be normal on SCell
It carries out.
Summary of the invention
The main purpose of the present invention is to provide a kind of accidental access method and user equipment, at least solve it is above-mentioned due to
UE does not carry out data transmit-receive in longer period of time, and SCell is likely to be at deactivation status, so that random on SCell
The problem of correlation step of access procedure can not be normally carried out.
According to an aspect of the invention, there is provided a kind of accidental access method, comprising: UE activation is in deactivation status
Auxiliary serving cell SCell；UE carries out random access procedure on SCell.
Preferably, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: if UE is in main serving cell
PCell is in uplink sync status, then UE activates SCell.
Preferably, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: if UE is in main serving cell
PCell carry out random access procedure, then UE on PCell random access procedure success after or UE msg3 is sent on PCell
After activate SCell.
Preferably, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: upstream data is reached and is touched
The random access procedure of hair, UE activate SCell when the value of Buffer Status Report BSR is greater than default first threshold value.
Preferably, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: upstream data is reached and is touched
The random access procedure of hair, UE activate SCell when the value of power headroom reporting (PHR) PHR is greater than default second threshold value.
Preferably, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: upstream data is reached and is touched
The random access procedure of hair, UE activate SCell when the value of downlink path loss is less than default third threshold value.
Preferably, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: upstream data is reached and is touched
The random access procedure of hair, UE are greater than default first threshold value, and the power headroom report of UE in the value of Buffer Status Report BSR
When the value for accusing PHR is greater than the downlink path loss for presetting the second threshold value or UE less than default third threshold value, SCell is activated.
Preferably, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: UE is small in main service according to eNB
The MAC CE activation SCell sent on area PCell.
Preferably, eNB by MAC CE it is independently transmitted to UE or with other MAC SDU multiplexing after be sent to UE or with
UE is sent to after the msg4 multiplexing of the upper random access procedure of PCell.
Preferably, before UE carries out random access procedure on SCell, further includes: eNB sent on PDCCH it is dedicated with
Machine access lead.
Preferably, it includes: that eNB judges to receive on PCell that eNB sends special random access preamble on PDCCH
Whether the value of Buffer Status Report BSR is greater than default 4th threshold value；If it is, eNB is sent out on SCell by PDCCH
Send special random access preamble.
Preferably, it includes: the buffer area that eNB judges UE downlink data that eNB sends special random access preamble on PDCCH
Whether data volume is greater than default 5th threshold value；If it is, before eNB sends dedicated random access by PDCCH on SCell
It leads.
According to another aspect of the present invention, a kind of user equipment is provided, comprising: active module is gone for activating to be in
The auxiliary serving cell SCell of state of activation；Random access module, for carrying out random access procedure on SCell.
Preferably, active module is also used in UE in the case where main serving cell PCell is in uplink sync status, is swashed
SCell living.
Preferably, active module is also used in UE in the case where main serving cell PCell carries out random access procedure,
SCell is activated after after the upper random access procedure success of PCell or sending msg3 on PCell.
Preferably, active module is also used to the random access procedure that upstream data reaches triggering, in Buffer Status Report
In the case that the value of BSR is greater than default first threshold value, SCell is activated.
Preferably, active module is also used to the random access procedure that upstream data reaches triggering, in power headroom reporting (PHR) PHR
Value be greater than default second threshold value in the case where, activate SCell.
Preferably, active module is also used to the random access procedure that upstream data reaches triggering, small in the value of downlink path loss
In the case where default third threshold value, SCell is activated.
Preferably, the MAC CE that active module is also used to be sent on main serving cell PCell according to eNB activates SCell.
Through the invention, random access procedure is carried out using SCell of the UE activation in deactivation status, solved
The problem of SCell is likely to be at deactivation status, and leading to the correlation step of random access procedure on SCell can not be normally carried out,
So that UE can initiate the opportunity of random access with flexible choice on SCell, to improve the success of UE random access procedure
Rate.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the random access procedure flow chart competition-based according to the relevant technologies；
Fig. 2 is the random access procedure flow chart for being not based on competition according to the relevant technologies；
Fig. 3 is accidental access method flow chart according to an embodiment of the present invention；
Fig. 4 is according to embodiments of the present invention one random access procedure flow chart；
Fig. 5 is according to embodiments of the present invention two random access procedure flow chart；
Fig. 6 is according to embodiments of the present invention three random access procedure flow chart；
Fig. 7 is according to embodiments of the present invention four random access procedure flow chart；
Fig. 8 is user device architecture block diagram according to an embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
Fig. 3 is accidental access method flow chart according to an embodiment of the present invention, as shown in Figure 3, comprising the following steps:
Step S302, UE activation is in the auxiliary serving cell SCell of deactivation status.
Step S304, UE carry out random access procedure on SCell.
In the present embodiment, random access procedure is carried out by SCell of the UE activation in deactivation status, solved
The problem of SCell is likely to be at deactivation status, and leading to the correlation step of random access procedure on SCell can not be normally carried out,
So that UE can initiate the opportunity of random access with flexible choice on SCell, to improve the success of UE random access procedure
Rate.
Wherein, in step s 302, UE activates SCell or is activated according to the MAC CE that eNB is sent on PCell
SCell.The behavior of UE activation SCell activates the behavior of SCell consistent after receiving the MAC CE from eNB with UE, comprising: UE
PDCCH can be monitored, PDSCH is received, carries out the relevant measurements of CSI such as CQI/PMI/RI, sends data, transmission SRS in PUSCH
It may further include the operation such as unlatching or adjusting of RF Deng operation.
Wherein, if UE is in uplink sync status in PCell, UE activates SCell.
Wherein, if UE carries out random access procedure in PCell, UE swashs after random access procedure success on PCell
SCell living；Suitable for random access procedure competition-based on PCell and the random access procedure for being not based on competition；Alternatively, UE
SCell is activated after sending msg3 on PCell.
Wherein, the random access procedure of triggering is reached for upstream data, value of the UE at Buffer Status Report (BSR) is big
When pre-determined threshold, SCell is activated.
Wherein, the random access procedure of triggering is reached for upstream data, value of the UE at power headroom reporting (PHR) (PHR) is greater than
When pre-determined threshold, SCell is activated.
Wherein, the random access procedure of triggering, value of the UE in downlink path loss (DL pathloss) are reached for upstream data
When less than pre-determined threshold, SCell is activated.
Wherein, the random access procedure of triggering is reached for upstream data, value of the UE at Buffer Status Report (BSR) is big
In pre-determined threshold, and the PHR of UE is greater than another pre-determined threshold or when downlink path loss is less than another pre-determined threshold, activates SCell.
Wherein, for UE according to eNB when the MAC CE sent on PCell activates SCell, MAC CE independently transmitted may give UE
Perhaps with other MAC SDU multiplexing after be sent to MAC CE or with PCell on random access procedure msg4 be multiplexed after send
To UE.
Wherein, after UE activates SCell, actively carry out random access procedure, or waiting eNB sent on PDCCH it is dedicated
Random access preamble carries out random access procedure.
Wherein, when eNB is greater than pre-determined threshold according to the value of the BSR received on PCell, pass through PDCCH on SCell
It sends special random access preamble and carries out random access procedure.
Wherein, eNB passes through on SCell when the buffer area data volume of the UE downlink data is greater than pre-determined threshold
PDCCH sends special random access preamble and carries out random access procedure.
In the present embodiment, when above-mentioned random access procedure carries out, compared with base in technology the step of random access procedure
In competition random access procedure or be not based on the random access procedure of competition.
In the following example one, two and three of the invention, 1 PCell is configured with UE and SCell1, SCell2 are
Example, wherein SCell1, SCell2 are different with the uplink TA of PCell, such as positioned at different band and/or are configured with RRH,
SCell1 is identical as the TA of SCell2, is located at the same TA group.It is suitable for UE is configured with 1 PCell and 1 to multiple
The scene of SCell in the wherein identical situation of TA of difference SCell, is located at the same TA group, the TA of different SCell not phase
It is located at different TA groups in the case where, SCell may also be located at the same TA group with PCell；When PCell or SCell are located at
In the case where different TA groups, if there is the demand of acquisition uplink synchronous in the case where corresponding TA group uplink loss, need
Random access procedure is carried out respectively.
Embodiment one
The scene of the present embodiment are as follows: the PCell of UE is in uplink sync status；SCell1, SCell2 are in uplink loss
State, and be deactivated；UE upstream data reaches.Fig. 4 is according to embodiments of the present invention one random access procedure flow chart,
As shown in Figure 4, comprising the following steps:
Step S402, UE activates at least one in SCell1, SCell2, for only activating SCell1；Or UE judgement
When the value of its BSR is greater than pre-configuration thresholding x, SCell1 is activated；Or UE judge its PHR value be greater than be pre-configured thresholding y when, swash
SCell1 living；Or UE judges that the value of its BSR is greater than and is pre-configured the value of thresholding x and its PHR and is greater than activation when being pre-configured thresholding y
SCell1。
Or UE sends BSR on PCell, and eNB is waited to send MAC CE activation SCell1 on PCell.In this step
In, further, it is non-that eNB sends special random access preamble progress when the value of BSR is greater than and is pre-configured thresholding x, in SCell1
Random access procedure competition-based.
The step of step S404, UE carry out random access procedure competition-based on SCell1, UE random access procedure
Compared with technology.
Or UE sends BSR on PCell and (if UE has sent BSR in step 1, can not have to retransmit herein
BSR), eNB is waited to send the random access procedure that special random access preamble triggering is not based on competition in SCell1, UE connects at random
The step of entering process is compared with technology.In this step, further, eNB when the value of BSR be greater than be pre-configured thresholding x when,
SCell1 sends special random access preamble and carries out the random access procedure for being not based on competition.
Embodiment two
The scene of the present embodiment are as follows: the PCell of UE is in uplink sync status；SCell1, SCell2 are in uplink loss
State, and be deactivated；It is reached in eNB for the downlink data of the UE.Fig. 5 be according to embodiments of the present invention two at random connect
Enter process flow diagram flow chart, as shown in Figure 5, comprising the following steps:
Step S502, eNB send the MAC CE of activation SCell1 by the PCell of the UE.
Step S504, UE receive the MAC CE in PCell, activate SCell1, PDCCH is monitored on SCell1.
Step S506, eNB send special random access preamble on SCell1 and carry out the random access mistake for being not based on competition
The step of journey, random access procedure, is compared with technology.
Wherein, in step S504 and S506, eNB is greater than pre-determined threshold when the buffer area data volume of the UE downlink data
When x, special random access preamble is sent by PDCCH on SCell1 and carries out random access procedure.
Embodiment three
The scene of the present embodiment are as follows: the PCell of UE is in uplink loss state；SCell1, SCell2 are in uplink loss
State, and be deactivated, UE upstream data reaches.Fig. 6 is according to embodiments of the present invention three random access procedure flow chart,
As shown in Figure 6, comprising the following steps:
Step S602, UE carry out random access procedure competition-based on PCell.
Step S604, UE activate SCell1 after contention resolved success on PCell；Or UE sends msg3 on PCell
After activate SCell1；Or UE send random access preamble on PCell after activate SCell1；Or respectively at above-mentioned three kinds
Machine activates SCell1 when UE judges the value of its BSR greater than thresholding x is pre-configured；Or respectively on above-mentioned three kinds of opportunitys, UE sentences
Break its PHR value be greater than be pre-configured thresholding y when, activate SCell1；Or respectively on above-mentioned three kinds of opportunitys, UE judges its BSR's
When value is greater than the value for being pre-configured thresholding x and its PHR greater than thresholding y is pre-configured, SCell1 is activated.
Wherein, in the case where UE does not activate SCell1, step S604 includes: eNB in PCell random access procedure
Msg4 is multiplexed MAC CE and activates SCell1；Or eNB sends MAC CE activation after PCell random access achievement on PCell
SCell1；Or UE sends BSR after PCell uplink synchronous on PCell, and eNB is waited to send MAC CE activation on PCell
SCell1。
The step of step S606, UE carry out random access procedure competition-based on SCell1, UE random access procedure
Compared with technology；Or UE after PCell uplink synchronous, is sending BSR (if UE has sent in step 1 on PCell
BSR can then not have to retransmit BSR herein), wait eNB to be not based in SCell1 transmission special random access preamble triggering competing
The step of random access procedure striven, UE random access procedure, is compared with technology.In this step, further, eNB works as BSR
Value be greater than be pre-configured thresholding x when, SCell1 send special random access preamble carry out the random access mistake for being not based on competition
Journey.
Example IV
The scene of the present embodiment are as follows: the PCell of UE is in uplink loss state；SCell1, SCell2 are in uplink loss
State, and be deactivated；It is reached in eNB for the downlink data of the UE.Fig. 7 be according to embodiments of the present invention four at random connect
Enter process flow diagram flow chart, as shown in fig. 7, comprises following steps:
Step S702, eNB send special random access preamble by the PCell of the UE and carry out being not based on connecing at random for competition
Enter process.
Step S704, after UE random access success on PCell, eNB sends MAC CE by PCell and activates
SCell1；Alternatively, the msg2 of eNB random access procedure on PCell is multiplexed MAC CE, SCell1 is activated.
Step S706, UE receive the MAC CE in PCell, activate SCell1, PDCCH is monitored on SCell1.
Step S708, eNB send special random access preamble on SCell1 and carry out the random access mistake for being not based on competition
The step of journey, random access procedure, is compared with technology.
Wherein, in step S706 and step S708, when the buffer area data volume of UE downlink data is greater than pre-determined threshold x
When, eNB sends special random access preamble by PDCCH on SCell1 and carries out random access procedure.
In the above embodiments, the thresholding x of BSR can be set to the rope in the BSR table or extension BSR table that UE is supported
Draw one of 0~63.PHR thresholding y can be set to one of index 0~63 in the PHR table that UE is supported.
Fig. 8 is user device architecture block diagram according to an embodiment of the present invention, as shown in figure 8, the user equipment includes activation
Module 10 and random access module 20.Wherein, active module 10 is connected with random access module 20.
Active module 10 is used to activate the auxiliary serving cell SCell in deactivation status.Random access module is used for
Random access procedure is carried out on SCell.
In the present embodiment, random access procedure is carried out by SCell of the UE activation in deactivation status, so that UE
The opportunity of random access can be initiated on SCell with flexible choice, to improve the success rate of UE random access procedure.
Wherein, active module 10 can be used for activating SCell under following scene:
(1) if UE is in uplink sync status in main serving cell PCell, SCell is activated.
(2) if UE main serving cell PCell carry out random access procedure, on PCell random access procedure at
SCell is activated after function；Suitable for random access procedure competition-based on PCell and the random access procedure for being not based on competition；
Or SCell is activated after transmission msg3 on PCell.
(3) random access procedure that triggering is reached for upstream data is greater than default in the value of Buffer Status Report BSR
When the first threshold value, SCell is activated.
(4) random access procedure that triggering is reached for upstream data is greater than default the in the value of power headroom reporting (PHR) PHR
When two threshold values, SCell is activated.
(5) random access procedure that triggering is reached for upstream data is less than default third thresholding in the value of downlink path loss
When value, SCell is activated.
(6) random access procedure that triggering is reached for upstream data is greater than default in the value of Buffer Status Report BSR
First threshold value, and the value of power headroom reporting (PHR) PHR is greater than default second threshold value or the value of downlink path loss is less than default third
When threshold value, SCell is activated.
(7) SCell is activated according to the MAC CE that eNB is sent on main serving cell PCell.
The various embodiments described above of the invention support on SCell based on the random access procedure for competing and being not based on competition,
Have many advantages, such as that delay is low, signaling overheads is small, take into account UE upstream traffic and channel condition, supports UE flexible choice in SCell
The upper opportunity for initiating random access also improves random so as to better adapt to the actual demand that UE improves data throughout
The success rate of access procedure.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of accidental access method characterized by comprising
User equipment (UE) activation is in the auxiliary serving cell SCell of deactivation status；
The UE carries out random access procedure on the SCell；
Wherein, UE activation is in the auxiliary serving cell SCell of deactivation status, comprising: if the UE is in main serving cell
PCell is in uplink sync status, then the UE activates the SCell；Or if the UE main serving cell PCell into
Row random access procedure, then the UE on the PCell random access procedure success after or the UE on the PCell
The SCell is activated after sending message 3msg3；Or the random access procedure of triggering is reached for upstream data, the UE exists
When the value of Buffer Status Report BSR is greater than default first threshold value, the SCell is activated；Or upstream data is reached
The random access procedure of triggering, the UE is when the value of power headroom reporting (PHR) PHR is greater than default second threshold value, described in activation
SCell；Or the random access procedure of triggering is reached for upstream data, the UE is less than default third in the value of downlink path loss
When threshold value, the SCell is activated；Or the random access procedure of triggering is reached for upstream data, the UE is in buffer area
The value of state report BSR is greater than default first threshold value, and the value of the power headroom reporting (PHR) PHR of the UE is greater than second default
When the downlink path loss of limit value or the UE are less than default third threshold value, the SCell is activated.
2. the method according to claim 1, wherein the UE carries out random access procedure on the SCell
Before, further includes:
Evolution node B eNB sends special random access preamble in physical downlink control channel PDCCH.
3. according to the method described in claim 2, it is characterized in that, eNB sends special random access preamble packet on PDCCH
It includes:
The eNB judges whether the value of the Buffer Status Report BSR received on the PCell is greater than default 4th thresholding
Value；
If it is, the eNB sends special random access preamble by the PDCCH on the SCell.
4. according to the method described in claim 2, it is characterized in that, eNB sends special random access preamble packet on PDCCH
It includes:
The eNB judges whether the buffer area data volume of the UE downlink data is greater than default 5th threshold value；
If it is, the eNB sends special random access preamble by the PDCCH on the SCell.
5. a kind of user equipment (UE) characterized by comprising
Active module, for activating the auxiliary serving cell SCell for being in deactivation status；
Random access module, for carrying out random access procedure on the SCell；
Wherein, the active module is also used in the UE in the case where main serving cell PCell is in uplink sync status,
Activate the SCell；Or the active module is also used to carry out random access procedure in main serving cell PCell in the UE
In the case where, it is activated on the PCell after random access procedure success or after sending message 3msg3 on the PCell
The SCell；Or the active module is also used to the random access procedure that upstream data reaches triggering, in buffer state report
In the case that the value of announcement BSR is greater than default first threshold value, the SCell is activated；Or the active module is also used to uplink
Data reach the random access procedure of triggering, in the case where the value of power headroom reporting (PHR) PHR is greater than default second threshold value, swash
The SCell living；Or the active module is also used to the random access procedure that upstream data reaches triggering, in downlink path loss
In the case that value is less than default third threshold value, the SCell is activated.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110208578.2A CN102905387B (en) | 2011-07-25 | 2011-07-25 | Accidental access method and user equipment |
| PCT/CN2012/076782 WO2013013539A1 (en) | 2011-07-25 | 2012-06-12 | Random access method and user equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110208578.2A CN102905387B (en) | 2011-07-25 | 2011-07-25 | Accidental access method and user equipment |
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| CN102905387A CN102905387A (en) | 2013-01-30 |
| CN102905387B true CN102905387B (en) | 2019-01-25 |
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| CN201110208578.2A Active CN102905387B (en) | 2011-07-25 | 2011-07-25 | Accidental access method and user equipment |
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| WO (1) | WO2013013539A1 (en) |
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| JP2015088997A (en) | 2013-10-31 | 2015-05-07 | 株式会社Ｎｔｔドコモ | Mobile station |
| CN111294744B (en) | 2014-01-27 | 2023-09-22 | 北京三星通信技术研究有限公司 | Method for controlling, charging and positioning UE in Small cell system |
| CN106792927B (en) * | 2015-11-23 | 2021-06-25 | 中兴通讯股份有限公司 | Uplink service identification switching method and device, and base station |
| EP3603122A4 (en) | 2017-03-23 | 2020-10-21 | Nokia Technologies Oy | Supporting mobility during low activity state |
| AU2017429654A1 (en) * | 2017-08-28 | 2019-12-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method, network device, and terminal device |
| CN110012549B (en) * | 2018-01-04 | 2020-09-22 | 维沃移动通信有限公司 | Information transmission method, terminal and network equipment |
| CN110012532B (en) * | 2018-01-04 | 2021-04-20 | 维沃移动通信有限公司 | PHR triggering method, terminal equipment and network equipment |
| CN110149178B (en) * | 2018-02-12 | 2020-09-01 | 维沃移动通信有限公司 | Reference signal configuration method, terminal equipment and network side equipment |
| CN110475346A (en) * | 2018-05-10 | 2019-11-19 | 夏普株式会社 | Communication control method and user equipment |
| CN111491393B (en) * | 2019-01-25 | 2022-01-14 | 华为技术有限公司 | Random access method, terminal equipment and network equipment |
| WO2020164115A1 (en) * | 2019-02-15 | 2020-08-20 | Mediatek Singapore Pte. Ltd. | Methods and apparatus of scell activation in new radio system |
| CN110290277B (en) * | 2019-07-25 | 2021-09-24 | 维沃移动通信有限公司 | Antenna control method and terminal |
| WO2021168807A1 (en) * | 2020-02-28 | 2021-09-02 | Oppo广东移动通信有限公司 | Time synchronization method, terminal device, and network device |
| CN111343727B (en) * | 2020-03-03 | 2022-07-08 | 西南医科大学附属中医医院 | Diagnosis and treatment classification information transmission method and system for otolaryngological department |
| CN115087129A (en) * | 2021-03-16 | 2022-09-20 | 夏普株式会社 | Random access reporting method and user equipment |
| WO2023035240A1 (en) * | 2021-09-10 | 2023-03-16 | Oppo广东移动通信有限公司 | Method and apparatus for controlling random access, and terminal device |
| WO2023151051A1 (en) * | 2022-02-12 | 2023-08-17 | 深圳传音控股股份有限公司 | Processing method, communication device and storage medium |
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| WO2013013539A1 (en) | 2013-01-31 |
| CN102905387A (en) | 2013-01-30 |
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