CN109673057A - Accidental access method and device under asymmetric up-link carrier polymerization - Google Patents
Accidental access method and device under asymmetric up-link carrier polymerization Download PDFInfo
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- CN109673057A CN109673057A CN201910070072.6A CN201910070072A CN109673057A CN 109673057 A CN109673057 A CN 109673057A CN 201910070072 A CN201910070072 A CN 201910070072A CN 109673057 A CN109673057 A CN 109673057A
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Abstract
The present invention provides the accidental access method and device under a kind of asymmetric up-link carrier polymerization, this method comprises: UE sends random access preamble to base station on uplink main carrier, random access response is sent to UE by downlink main carrier to carry according to random access preamble for base station, UE receives the random access response that base station is sent, and UE sends scheduling of upstream transmissions for the first time according to random access response on uplink main carrier.Accidental access method and device under asymmetric up-link carrier polymerization provided by the invention, solve the random access problems under asymmetric up-link carrier aggregation scene.
Description
The present invention be submit on October 13rd, 2014 application No. is 201410539927.2, it is entitled " asymmetric
Up-link carrier polymerization under accidental access method and device " application for a patent for invention divisional application.
Technical field
The present invention relates to the accidental access methods under field of communication technology more particularly to a kind of asymmetric up-link carrier polymerization
And device.
Background technique
In existing long term evolution (Long Term Evolution, referred to as: LTE) system, single carrier maximum is supported
The system bandwidth of 20M, if desired bigger bandwidth, then need using carrier aggregation technology.In private network, there are a large amount of videos
The application such as monitoring service, the business demand that the business demand of such business uplink is greater than downlink need one in that case
Carrier aggregation scheme is planted to meet the needs of industry network.
Propose a kind of asymmetric up-link carrier polymerization in the prior art, can meet uplink business demand be greater than under
The scene of capable business demand.In the method, such as there are N number of descending carrier and M up-link carrier, N is less than or equal to M, existing
Asymmetric up-link carrier polymerization treatment process are as follows: N number of descending carrier and M up-link carrier are decomposed into multiple by base station first
Carrier wave polymerize cluster, wherein each carrier wave polymerization cluster includes a descending carrier and K up-link carrier, and K is whole more than or equal to 1
Number, Fig. 1 is main carrier and secondary carrier schematic diagram, as shown in Figure 1, the corresponding up-link carrier of descending carrier and the descending carrier
Main carrier is formed, remaining K-1 up-link carrier is secondary carrier.Then multiple carrier waves polymerization cluster of decomposition is carried out carrier wave by base station
Polymerization.
In the scene of above-mentioned existing asymmetric up-link carrier polymerization, since upstream auxiliary carriers do not have corresponding downlink auxiliary
Carrier wave, under this kind of scene, it is a problem to be solved that how upstream auxiliary carriers, which carry out random access,.
Summary of the invention
The present invention provides the accidental access method and device under a kind of asymmetric up-link carrier polymerization, to solve on asymmetric
Random access problems under row carrier aggregation scene.
In a first aspect, the present invention provides the accidental access method under a kind of asymmetric up-link carrier polymerization, comprising:
User equipment (UE) on uplink main carrier to base station send random access preamble, for the base station according to described in
Machine access lead sends random access response to the UE by downlink main carrier to carry；
The UE receives the random access response that the base station is sent；
The UE sends scheduling of upstream transmissions for the first time on the uplink main carrier according to the random access response.
Further, the UE sends dispatching uplink for the first time on the uplink main carrier according to the random access response
After transmission, further includes:
The UE is received in radio resource control RRC signaling or physical downlink control channel PDCCH that the base station is sent
Down link control information DCI 0, the mark of a upstream auxiliary carriers is carried in the DCI 0 or RRC signaling；
The UE sends data in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers.
Further, the UE sends dispatching uplink for the first time on the uplink main carrier according to the random access response
After transmission, further includes:
The UE sends the secondary carrier access capability instruction message of the UE to the base station, knows institute for the base station
After the secondary carrier access capability for stating UE, Xiang Suoshu UE sends RRC reconfiguration message, carries at least in the RRC reconfiguration message
The mark of one upstream auxiliary carriers, the RRC reconfiguration message are used to indicate the UE and carry in the RRC reconfiguration message
Upstream auxiliary carriers the corresponding upstream auxiliary carriers of mark on initiate random access；
It is sent out in the corresponding upstream auxiliary carriers of mark for the upstream auxiliary carriers that the UE is carried in the RRC reconfiguration message
Play random access.
Further, the corresponding uplink of mark for the upstream auxiliary carriers that the UE is carried in the RRC reconfiguration message
Random access is initiated in secondary carrier, comprising:
The UE sends random access preamble to the base station in upstream auxiliary carriers, for the base station by under described
Row main carrier sends random access response to the UE, and the upstream auxiliary carriers are times carried in the RRC reconfiguration message
The corresponding upstream auxiliary carriers of the mark of one upstream auxiliary carriers；
The UE receives the random access response that the base station is sent；
The UE sends scheduling of upstream transmissions for the first time according to the random access response in the upstream auxiliary carriers.
Further, the UE sends dispatching uplink for the first time according to the random access response in the upstream auxiliary carriers
After transmission, further includes:
The UE receives the contention resolution message that the base station is sent by the downlink main carrier to carry to the UE.
Second aspect, the present invention provide the accidental access method under a kind of asymmetric up-link carrier polymerization, comprising:
Base station receives the random access preamble that user equipment (UE) is sent on uplink main carrier；
The base station sends random access response to the UE by downlink main carrier to carry according to the random access preamble, uses
Scheduling of upstream transmissions for the first time is sent on the uplink main carrier according to the random access response in the UE；
The base station receives the scheduling of upstream transmissions for the first time that the UE is sent on the uplink main carrier.
Further, the base station receive scheduling of upstream transmissions for the first time that the UE is sent on the uplink main carrier it
Afterwards, further includes:
Under the base station is sent in radio resource control RRC signaling or physical downlink control channel PDCCH to the UE
The mark that a upstream auxiliary carriers are carried in downlink control information DCI 0, the DCI 0 or RRC signaling, for the UE in institute
It states and sends data in the corresponding upstream auxiliary carriers of mark of upstream auxiliary carriers；
The base station receives the data that the UE is sent in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers.
Further, the base station receive scheduling of upstream transmissions for the first time that the UE is sent on the uplink main carrier it
Afterwards, further includes:
The base station receives the secondary carrier access capability instruction message that the UE is sent；
After the secondary carrier access capability of the UE is known in the base station, Xiang Suoshu UE sends RRC reconfiguration message, described
The mark of at least one upstream auxiliary carriers is carried in RRC reconfiguration message, the RRC reconfiguration message is used to indicate the UE and exists
Random access is initiated in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers carried in the RRC reconfiguration message；
The base station receive the upstream auxiliary carriers that the UE is carried in the RRC reconfiguration message mark it is corresponding on
The random access initiated in row secondary carrier.
Further, the base station receives the random access that the UE is initiated in upstream auxiliary carriers, comprising:
The base station receives the random access preamble that the UE is sent in upstream auxiliary carriers, and the upstream auxiliary carriers are institute
State the corresponding upstream auxiliary carriers of mark of any upstream auxiliary carriers carried in RRC reconfiguration message；
The base station sends random access response to the UE by the downlink main carrier to carry, for the UE according to
Random access response sends scheduling of upstream transmissions for the first time in the upstream auxiliary carriers.
Further, further includes:
The base station sends contention resolution message to the UE by the downlink main carrier to carry.
The third aspect, the present invention provide a kind of user equipment, comprising:
Sending module, for sending random access preamble to base station on uplink main carrier, for the base station according to institute
It states random access preamble and random access response is sent to the UE by downlink main carrier to carry；
Receiving module, the random access response sent for receiving the base station；
The sending module is also used to be sent on the uplink main carrier according to the random access response and dispatch for the first time
Uplink.
Further, the receiving module is also used to: in the sending module according to the random access response described
After sending scheduling of upstream transmissions for the first time on uplink main carrier, receive radio resource control RRC signaling that the base station is sent or
Down link control information DCI 0 in physical downlink control channel PDCCH carries a uplink in the DCI 0 or RRC signaling
The mark of secondary carrier；
The sending module is also used to: sending data in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers.
Further, the sending module is also used to:
After sending scheduling of upstream transmissions for the first time on the uplink main carrier according to the random access response, Xiang Suoshu
Base station sends the secondary carrier access capability instruction message of the UE, and the secondary carrier access capability of the UE is known for the base station
Afterwards, Xiang Suoshu UE sends RRC reconfiguration message, and the mark of at least one upstream auxiliary carriers is carried in the RRC reconfiguration message,
The RRC reconfiguration message is used to indicate the mark pair for the upstream auxiliary carriers that the UE is carried in the RRC reconfiguration message
Random access is initiated in the upstream auxiliary carriers answered；
The sending module is also used to: the mark of the upstream auxiliary carriers carried in the RRC reconfiguration message is corresponding
Random access is initiated in upstream auxiliary carriers.
Further, the mark for the upstream auxiliary carriers that the sending module carries in the RRC reconfiguration message is corresponding
Upstream auxiliary carriers on initiate random access, comprising:
The sending module sends random access preamble to the base station in upstream auxiliary carriers, passes through for the base station
The downlink main carrier to carry sends random access response to the UE, and the upstream auxiliary carriers are to take in the RRC reconfiguration message
The corresponding upstream auxiliary carriers of mark of any upstream auxiliary carriers of band；
The receiving module is also used to: receiving the random access response that the base station is sent；
The sending module sends dispatching uplink biography for the first time according to the random access response in the upstream auxiliary carriers
It is defeated.
Further, the receiving module is also used to: in the sending module according to the random access response described
After sending scheduling of upstream transmissions for the first time in upstream auxiliary carriers, receives the base station and sent out by the downlink main carrier to carry to the UE
The contention resolution message sent.
Fourth aspect, the present invention provide a kind of base station, comprising:
Receiving module, the random access preamble sent on uplink main carrier for receiving user equipment (UE)；
Sending module is rung for sending random access to the UE by downlink main carrier to carry according to the random access preamble
It answers, scheduling of upstream transmissions for the first time is sent on the uplink main carrier according to the random access response for the UE；
The receiving module is also used to: being received the dispatching uplink for the first time that the UE is sent on the uplink main carrier and is passed
It is defeated.
Further, the sending module is also used to:
After the scheduling of upstream transmissions for the first time that the receiving module receives that the UE is sent on the uplink main carrier,
The down link control information DCI in radio resource control RRC signaling or physical downlink control channel PDCCH is sent to the UE
The mark that a upstream auxiliary carriers are carried in 0, the DCI 0 or RRC signaling, for the UE the upstream auxiliary carriers mark
Data are sent in corresponding upstream auxiliary carriers；
The receiving module is also used to: receiving the UE in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers
The data of transmission.
Further, the receiving module is also used to: being sent for the first time on the uplink main carrier receiving the UE
After scheduling of upstream transmissions, the secondary carrier access capability instruction message that the UE is sent is received；
The sending module is also used to: after knowing the secondary carrier access capability of the UE, Xiang Suoshu UE sends RRC and reconfigures
Message carries the mark of at least one upstream auxiliary carriers in the RRC reconfiguration message, and the RRC reconfiguration message is for referring to
Show and is initiated at random in the corresponding upstream auxiliary carriers of mark for the upstream auxiliary carriers that the UE is carried in the RRC reconfiguration message
Access；
The receiving module is also used to: receiving the upstream auxiliary carriers that the UE is carried in the RRC reconfiguration message
Identify the random access initiated in corresponding upstream auxiliary carriers.
Further, the receiving module receives the random access that the UE is initiated in upstream auxiliary carriers, comprising:
The random access preamble that the UE is sent in upstream auxiliary carriers is received, the upstream auxiliary carriers are RRC weight
The corresponding upstream auxiliary carriers of mark of any upstream auxiliary carriers carried in configuration message；
The sending module is also used to: being sent random access response to the UE by the downlink main carrier to carry, is used for institute
It states UE and scheduling of upstream transmissions for the first time is sent in the upstream auxiliary carriers according to the random access response.
Further, the sending module is also used to:
Contention resolution message is sent to the UE by the downlink main carrier to carry.
Accidental access method and device under asymmetric up-link carrier polymerization provided by the invention, by the way that random access is arranged
It is only carried out on main carrier, to solve the random access problems under asymmetric up-link carrier aggregation scene.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the present invention or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is of the invention one
A little embodiments for those of ordinary skill in the art without any creative labor, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is main carrier and secondary carrier schematic diagram；
Fig. 2 is the flow chart of the accidental access method embodiment one under the asymmetric up-link carrier polymerization of the present invention；
Fig. 3 is the flow chart of the accidental access method embodiment two under the asymmetric up-link carrier polymerization of the present invention；
Fig. 4 is the interaction diagrams of the accidental access method embodiment three under the asymmetric up-link carrier polymerization of the present invention；
Fig. 5 is the interaction diagrams of the accidental access method example IV under the asymmetric up-link carrier polymerization of the present invention；
Fig. 6 is the structural schematic diagram of user equipment embodiment one of the present invention；
Fig. 7 is the structural schematic diagram of base station embodiment one of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the attached drawing in the present invention, to this
Technical solution in invention is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
Accidental access method and device under asymmetric up-link carrier polymerization provided by the invention, it is asymmetric for solving
Random access problems under row carrier aggregation scene have a uplink main carrier and a downlink main carrier to carry as shown in connection with fig. 1,
K-1 upstream auxiliary carriers, upstream auxiliary carriers do not have corresponding downlink secondary carrier, for this scene, random access this how into
Row, is described in detail below with reference to embodiment.
Fig. 2 is the flow chart of the accidental access method embodiment one under the asymmetric up-link carrier polymerization of the present invention, this implementation
Example is used as executing subject with user equipment (User Equipment, hereinafter referred to as: UE) and is illustrated, as shown in Fig. 2, this
The method of embodiment may include:
S101, UE send random access preamble to base station on uplink main carrier, for base station according to random access preamble
Random access response is sent to UE by downlink main carrier to carry.
Specifically, Physical Random Access Channel (the Physical Random Access that UE is configured on uplink main carrier
Channel, referred to as: PRACH) on to base station send random access preamble.After base station receives random access preamble, using wherein
Random access leader sequence, calculate Timing Advance, and distribute channel resource and temporary cell-radio network to the UE and face
When identification number (Temporary Cell Radio Network Temporary Identifier, referred to as: Temporary C-
RNTI), the Physical Downlink Shared Channel through downlink main carrier to carry is sent, referred to as random access response.
S102, UE receive the random access response that base station is sent.
S103, UE send scheduling of upstream transmissions for the first time according to random access response on uplink main carrier.
Specifically, UE is total in the physical uplink of uplink main carrier according to the signal channel resource allocation information in random access response
It enjoys and sends scheduling of upstream transmissions for the first time on channel.
Since upstream auxiliary carriers do not have corresponding downlink secondary carrier, in the present invention, it is specified that random access is only in master
Carrier wave is initiated.The present invention provides two kinds of accidental access methods:
One, random access is only initiated in main carrier, and secondary carrier is unworthy of Physical Random Access Channel PRACH resource.
After the completion of S101-S103 random access, after S103, further includes:
UE receives wireless heterogeneous networks (Radio Resource Control, referred to as: the RRC) signaling or object that base station is sent
Manage the downlink control on down control channel (Physical Downlink Control Channel, referred to as: PDCCH)
A upstream auxiliary carriers are carried in information (Downlink Control Information, referred to as: DCI) 0, DCI0 or RRC signaling
Mark.
UE sends data in the corresponding upstream auxiliary carriers of mark of upstream auxiliary carriers.
Accidental access method under asymmetric up-link carrier polymerization provided in this embodiment, is only existed by setting random access
It is carried out on main carrier, secondary carrier is used to send data, to solve the random access under asymmetric up-link carrier aggregation scene
Problem.
Two, main carrier and secondary carrier independently do random access, the random access procedure of main carrier compared with random access
Process, the random access procedure of secondary carrier complete random access in main carrier with above-mentioned S101-S103, i.e. UE first.
Then, after S103, further includes:
UE sends the secondary carrier access capability instruction message of UE to base station, and the secondary carrier access capability of UE is known for base station
Afterwards, RRC reconfiguration message is sent to UE, the mark of at least one upstream auxiliary carriers, RRC reconfiguration is carried in RRC reconfiguration message
It sets message and is used to indicate in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers that UE is carried in RRC reconfiguration message and initiate
Random access.
It initiates to connect at random in the corresponding upstream auxiliary carriers of the mark for the upstream auxiliary carriers that UE is carried in RRC reconfiguration message
Enter.
Specifically, it is sent out in the corresponding upstream auxiliary carriers of mark for the upstream auxiliary carriers that UE is carried in RRC reconfiguration message
Play random access, comprising:
UE sends random access preamble to base station in upstream auxiliary carriers, is sent by downlink main carrier to carry to UE for base station
Random access response, upstream auxiliary carriers are the corresponding uplink of mark of any upstream auxiliary carriers carried in RRC reconfiguration message
Secondary carrier.
UE receives the random access response that base station is sent.
UE sends scheduling of upstream transmissions for the first time according to random access response in upstream auxiliary carriers.
The above process is directed to non-competing random access, and for the random access of competition, UE according to connecing at random
Enter after response sends scheduling of upstream transmissions for the first time in upstream auxiliary carriers, further includes:
UE receives base station and passes through the contention resolution message that downlink main carrier to carry is sent to UE.
Accidental access method under asymmetric up-link carrier polymerization provided in this embodiment, by the way that random access for the first time is arranged
It is carried out on main carrier, for the first time after the completion of random access, UE reports the access capability of secondary carrier to base station, so that UE is cut in base station
It changes to secondary carrier and initiates random access, for UE when any secondary carrier carries out random access, non-competing random access response is by base
It stands and is sent on downlink main carrier to carry, the random access response and contention resolution message of competition are sent out on downlink main carrier to carry by base station
It send, to solve the random access problems under asymmetric up-link carrier aggregation scene.
Fig. 3 is the flow chart of the accidental access method embodiment two under the asymmetric up-link carrier polymerization of the present invention, this implementation
Example using base station as executing subject for be illustrated, as shown in figure 3, the method for the present embodiment may include:
S201, base station receive the random access preamble that UE is sent on uplink main carrier.
Specifically, random access preamble is sent to base station on the PRACH that UE is configured on uplink main carrier.
S202, base station send random access response to UE by downlink main carrier to carry according to random access preamble, are used for UE root
Scheduling of upstream transmissions for the first time is sent on uplink main carrier according to random access response.
Specifically, it after base station receives random access preamble, using random access leader sequence therein, calculates timing and mentions
Preceding amount, and to UE distribution channel resource and temporary Temporary C-RNTI, the physical down through downlink main carrier to carry is shared
Channel is sent, referred to as random access response.UE is according to the signal channel resource allocation information in random access response in uplink main carrier
Physical Uplink Shared Channel on send scheduling of upstream transmissions for the first time.
S203, base station receive the scheduling of upstream transmissions for the first time that UE is sent on uplink main carrier.
Since upstream auxiliary carriers do not have corresponding downlink secondary carrier, in the present invention, it is specified that random access is only in master
Carrier wave is initiated.The present invention provides two kinds of accidental access methods:
One, random access is only initiated in main carrier, and secondary carrier is unworthy of Physical Random Access Channel PRACH resource.
After the completion of S101-S103 random access, after S203, further includes:
Base station sends DCI 0 or RRC signaling on PDCCH to UE, carries a uplink in PDCCH DCI 0 or RRC signaling
The mark of secondary carrier sends data in the corresponding upstream auxiliary carriers of mark of upstream auxiliary carriers for UE.
Base station receives the data that UE is sent in the corresponding upstream auxiliary carriers of mark of upstream auxiliary carriers.
Accidental access method under asymmetric up-link carrier polymerization provided in this embodiment, is only existed by setting random access
It is carried out on main carrier, secondary carrier is used to send data, to solve the random access under asymmetric up-link carrier aggregation scene
Problem.
Two, main carrier and secondary carrier independently do random access, the random access procedure of main carrier compared with random access
Process, the random access procedure of secondary carrier complete random access in main carrier with above-mentioned S101-S103, i.e. UE first.
Then, after S203, further includes:
Base station receives the secondary carrier access capability instruction message that UE is sent.
After the secondary carrier access capability of UE is known in base station, RRC reconfiguration message is sent to UE, is taken in RRC reconfiguration message
Mark at least one upstream auxiliary carriers, RRC reconfiguration message are used to indicate the uplink that UE is carried in RRC reconfiguration message
Random access is initiated in the corresponding upstream auxiliary carriers of the mark of secondary carrier.
It is sent out in the corresponding upstream auxiliary carriers of mark for the upstream auxiliary carriers that base station reception UE is carried in RRC reconfiguration message
The random access risen.
Base station receives the random access that UE is initiated in upstream auxiliary carriers, specifically includes:
Base station receives the random access preamble that UE is sent in upstream auxiliary carriers, and upstream auxiliary carriers are RRC reconfiguration message
The corresponding upstream auxiliary carriers of mark of any upstream auxiliary carriers of middle carrying.
Base station sends random access response to UE by downlink main carrier to carry, auxiliary in uplink according to random access response for UE
Scheduling of upstream transmissions for the first time is sent on carrier wave.
The above process is directed to non-competing random access, for the random access of competition, further includes:
Base station sends contention resolution message to UE by downlink main carrier to carry.
Accidental access method under asymmetric up-link carrier polymerization provided in this embodiment, by the way that random access for the first time is arranged
It is carried out on main carrier, for the first time after the completion of random access, UE reports the access capability of secondary carrier to base station, and base station is according to secondary carrier
Access capability by UE be switched to secondary carrier initiate random access, UE any secondary carrier carry out random access when, it is non-competing
Random access response is sent on downlink main carrier to carry by base station, and the random access response and contention resolution message of competition are existed by base station
It is sent on downlink main carrier to carry, to solve the random access problems under asymmetric up-link carrier aggregation scene.
Carry out connecing under the asymmetric up-link carrier polymerization that the present invention will be described in detail at random with two specific embodiments below
Enter method.
Fig. 4 is the interaction diagrams of the accidental access method embodiment three under the asymmetric up-link carrier polymerization of the present invention, such as
Shown in Fig. 4, in the present embodiment, random access is only initiated in main carrier, and secondary carrier is unworthy of PRACH resource.The method of the present embodiment
May include:
S301, UE send random access preamble to base station on uplink main carrier.
Specifically, random access preamble is sent to base station on the PRACH that UE is configured on uplink main carrier.
S302, base station send random access response to UE by downlink main carrier to carry according to random access preamble.
Specifically, it after base station receives random access preamble, using random access leader sequence therein, calculates timing and mentions
Preceding amount, and to UE distribution channel resource and Temporary C-RNTI, the Physical Downlink Shared Channel hair through downlink main carrier to carry
It send, referred to as random access response.
After S303, UE receive the random access response of base station transmission, according to random access response on uplink main carrier
Send scheduling of upstream transmissions for the first time.
Specifically, UE is total in the physical uplink of uplink main carrier according to the signal channel resource allocation information in random access response
It enjoys and sends scheduling of upstream transmissions for the first time on channel.
S304, base station send the DCI 0 on RRC signaling or PDCCH to UE, and it is auxiliary to carry a uplink in DCI 0 or RRC signaling
The mark of carrier wave.
S305, UE send data in the corresponding upstream auxiliary carriers of mark of upstream auxiliary carriers.
Fig. 5 is the interaction diagrams of the accidental access method example IV under the asymmetric up-link carrier polymerization of the present invention, this
In embodiment, main carrier and secondary carrier independently do random access, the random access procedure of main carrier compared with random access mistake
The random access procedure of journey, secondary carrier is as follows, as shown in Figure 5:
S401, UE send random access preamble to base station on uplink main carrier.
Specifically, random access preamble is sent to base station on the PRACH that UE is configured on uplink main carrier.
S402, base station send random access response to UE by downlink main carrier to carry according to random access preamble.
Specifically, it after base station receives random access preamble, using random access leader sequence therein, calculates timing and mentions
Preceding amount, and to UE distribution channel resource and Temporary C-RNTI, the Physical Downlink Shared Channel hair through downlink main carrier to carry
It send, referred to as random access response.
After S403, UE receive the random access response of base station transmission, according to random access response on uplink main carrier
Send scheduling of upstream transmissions for the first time.
Specifically, UE is total in the physical uplink of uplink main carrier according to the signal channel resource allocation information in random access response
It enjoys and sends scheduling of upstream transmissions for the first time on channel.
It is completed through S401-S403 in the random access procedure of main carrier, then, after S403, further includes:
S404, UE send the secondary carrier access capability instruction message of UE to base station.
After S405, base station know the secondary carrier access capability of UE, RRC reconfiguration message, RRC reconfiguration message are sent to UE
The middle mark for carrying at least one upstream auxiliary carriers, RRC reconfiguration message are used to indicate what UE was carried in RRC reconfiguration message
Random access is initiated in the corresponding upstream auxiliary carriers of the mark of upstream auxiliary carriers.
S406, UE send random access preamble to base station in upstream auxiliary carriers, and upstream auxiliary carriers are RRC reconfiguration message
The corresponding upstream auxiliary carriers of mark of any upstream auxiliary carriers of middle carrying.
S407, base station send random access response to UE by downlink main carrier to carry.
S408, UE send scheduling of upstream transmissions for the first time according to random access response in upstream auxiliary carriers.
The above process is directed to non-competing random access, for the random access of competition, after S408, also wraps
It includes:
S409, base station send contention resolution message to UE by downlink main carrier to carry.
Fig. 6 is the structural schematic diagram of user equipment embodiment one of the present invention, as shown in fig. 6, the user equipment of the present embodiment
May include: sending module 11 and receiving module 12, wherein sending module 11 be used on uplink main carrier to base station send with
Machine access lead sends random access response to UE by downlink main carrier to carry according to random access preamble for base station.Receive mould
Block 12 is used to receive the random access response of base station transmission.Sending module 11 is also used to according to random access response in the main load of uplink
Scheduling of upstream transmissions for the first time is sent on wave.
As a kind of enforceable mode, receiving module 12 is also used to: being existed in sending module 11 according to random access response
After sending scheduling of upstream transmissions for the first time on uplink main carrier, the DCI 0 in the RRC signaling or PDCCH that base station is sent is received,
The mark of a upstream auxiliary carriers is carried in DCI 0 or RRC signaling.
Sending module 11 is also used to: sending data in the corresponding upstream auxiliary carriers of mark of upstream auxiliary carriers.
As another enforceable mode, sending module 11 is also used to: according to random access response in uplink main carrier
Upper transmission after scheduling of upstream transmissions, the secondary carrier access capability instruction message of UE is sent to base station, is known for base station for the first time
After the secondary carrier access capability of UE, RRC reconfiguration message is sent to UE, it is auxiliary to carry at least one uplink in RRC reconfiguration message
The mark of carrier wave, the mark that RRC reconfiguration message is used to indicate the upstream auxiliary carriers that UE is carried in RRC reconfiguration message are corresponding
Upstream auxiliary carriers on initiate random access.
Sending module 11 is also used to: the corresponding uplink of the mark of the upstream auxiliary carriers carried in RRC reconfiguration message is auxiliary
Random access is initiated on carrier wave.
Wherein, the auxiliary load of the corresponding uplink of mark for the upstream auxiliary carriers that sending module 11 carries in RRC reconfiguration message
Random access is initiated on wave, is specifically included:
Sending module 11 sends random access preamble to base station in upstream auxiliary carriers, passes through downlink main carrier to carry for base station
Random access response is sent to UE, upstream auxiliary carriers are the mark pair of any upstream auxiliary carriers carried in RRC reconfiguration message
The upstream auxiliary carriers answered.Receiving module 12 is also used to: receiving the random access response that base station is sent.Sending module 11 is according to random
Access response sends scheduling of upstream transmissions for the first time in upstream auxiliary carriers.
Further, receiving module 12 is also used to: sending module 11 according to random access response in upstream auxiliary carriers
After sending scheduling of upstream transmissions for the first time, receives base station and pass through the contention resolution message that downlink main carrier to carry is sent to UE.
The corresponding technical solution that can be used for executing embodiment of the method shown in Fig. 2 of the user equipment of embodiment illustrated in fig. 6,
The realization principle and technical effect are similar, and details are not described herein.
Fig. 7 is the structural schematic diagram of base station embodiment one of the present invention, as shown in fig. 7, the base station of the present embodiment may include:
Receiving module 21 and sending module 22, wherein receiving module 21 is for receiving the random access that UE is sent on uplink main carrier
It is leading.Sending module 22 is used to send random access response to UE by downlink main carrier to carry according to random access preamble, is used for UE
Scheduling of upstream transmissions for the first time is sent on uplink main carrier according to random access response.Receiving module 21 is also used to: being received UE and is existed
The scheduling of upstream transmissions for the first time sent on uplink main carrier.
As a kind of enforceable mode, sending module 22 is also used to:
After the scheduling of upstream transmissions for the first time that receiving module 21 receives that UE is sent on uplink main carrier, sent to UE
The mark of a upstream auxiliary carriers is carried in DCI 0 on RRC signaling or PDCCH, DCI 0 or RRC signaling, it is auxiliary in uplink for UE
Data are sent in the corresponding upstream auxiliary carriers of the mark of carrier wave.Receiving module 21 is also used to: receiving UE in the mark of upstream auxiliary carriers
Know the data sent in corresponding upstream auxiliary carriers.
As another enforceable mode, receiving module 21 is also used to: receiving what UE was sent on uplink main carrier
For the first time after scheduling of upstream transmissions, the secondary carrier access capability instruction message that UE is sent is received.Sending module 22 is also used to: being known
After the secondary carrier access capability of UE, RRC reconfiguration message is sent to UE, it is auxiliary to carry at least one uplink in RRC reconfiguration message
The mark of carrier wave, the mark that RRC reconfiguration message is used to indicate the upstream auxiliary carriers that UE is carried in RRC reconfiguration message are corresponding
Upstream auxiliary carriers on initiate random access.Receiving module 21 is also used to: receiving the uplink that UE is carried in RRC reconfiguration message
The random access initiated in the corresponding upstream auxiliary carriers of mark of secondary carrier.
Wherein, receiving module 21 receives the random access that UE is initiated in upstream auxiliary carriers, specifically includes:
The random access preamble that UE is sent in upstream auxiliary carriers is received, upstream auxiliary carriers are to take in RRC reconfiguration message
The corresponding upstream auxiliary carriers of mark of any upstream auxiliary carriers of band.Sending module 22 is also used to: by downlink main carrier to carry to UE
Random access response is sent, sends scheduling of upstream transmissions for the first time in upstream auxiliary carriers according to random access response for UE.
Further, sending module 22 is also used to: sending contention resolution message to UE by downlink main carrier to carry.
The corresponding technical solution that can be used for executing embodiment of the method shown in Fig. 3 in the base station of embodiment illustrated in fig. 7 is realized
Principle is similar with technical effect, and details are not described herein.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. the accidental access method under a kind of asymmetric up-link carrier polymerization characterized by comprising
User equipment (UE) sends random access preamble to base station on uplink main carrier, is connect at random for the base station according to described
Enter it is leading by downlink main carrier to carry to the UE send random access response；
The UE receives the random access response that the base station is sent；
The UE sends scheduling of upstream transmissions for the first time on the uplink main carrier according to the random access response；
Under the UE is received in the radio resource control RRC signaling or physical downlink control channel PDCCH that the base station is sent
The mark of a upstream auxiliary carriers is carried in downlink control information DCI 0, the DCI 0 or RRC signaling；
The UE sends data in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers.
2. the accidental access method under a kind of asymmetric up-link carrier polymerization characterized by comprising
Base station receives the random access preamble that user equipment (UE) is sent on uplink main carrier；
The base station sends random access response to the UE by downlink main carrier to carry according to the random access preamble, is used for institute
It states UE and scheduling of upstream transmissions for the first time is sent on the uplink main carrier according to the random access response；
The base station receives the scheduling of upstream transmissions for the first time that the UE is sent on the uplink main carrier；
The base station sends the downlink chain in radio resource control RRC signaling or physical downlink control channel PDCCH to the UE
Road controls information DCI 0, and the mark of a upstream auxiliary carriers is carried in the DCI 0 or RRC signaling, for the UE described
Data are sent in the corresponding upstream auxiliary carriers of the mark of row secondary carrier；
The base station receives the data that the UE is sent in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers.
3. a kind of user equipment characterized by comprising
Sending module, on uplink main carrier to base station send random access preamble, for the base station according to described in
Machine access lead sends random access response to UE by downlink main carrier to carry；
Receiving module, the random access response sent for receiving the base station；
The sending module is also used to send dispatching uplink for the first time on the uplink main carrier according to the random access response
Transmission；
The receiving module is also used to: being sent out on the uplink main carrier in the sending module according to the random access response
After sending scheduling of upstream transmissions for the first time, the radio resource control RRC signaling or physical down control letter that the base station is sent are received
The mark of a upstream auxiliary carriers is carried in down link control information DCI 0 on road PDCCH, the DCI 0 or RRC signaling；
The sending module is also used to: sending data in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers.
4. a kind of base station characterized by comprising
Receiving module, the random access preamble sent on uplink main carrier for receiving user equipment (UE)；
Sending module, for sending random access response to the UE by downlink main carrier to carry according to the random access preamble,
Scheduling of upstream transmissions for the first time is sent on the uplink main carrier according to the random access response for the UE；
The receiving module is also used to: receiving the scheduling of upstream transmissions for the first time that the UE is sent on the uplink main carrier；
The sending module is also used to:
After the scheduling of upstream transmissions for the first time that the receiving module receives that the UE is sent on the uplink main carrier, to institute
The down link control information DCI 0 in UE transmission radio resource control RRC signaling or physical downlink control channel PDCCH is stated,
The mark that a upstream auxiliary carriers are carried in the DCI 0 or RRC signaling, for the UE the upstream auxiliary carriers mark pair
Data are sent in the upstream auxiliary carriers answered；
The receiving module is also used to: being received the UE and is sent in the corresponding upstream auxiliary carriers of mark of the upstream auxiliary carriers
Data.
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| CN201910070072.6A CN109673057B (en) | 2014-10-13 | 2014-10-13 | Random access method and device under asymmetric uplink carrier aggregation |
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| EP3451780B1 (en) * | 2016-05-12 | 2022-11-30 | Huawei Technologies Co., Ltd. | Communication methods utilizing random access, terminal, and base station |
| CN108632010B (en) * | 2017-03-25 | 2021-06-08 | 华为技术有限公司 | Wireless communication method, device and system |
| CN108183782B (en) * | 2017-11-28 | 2020-11-17 | 上海华为技术有限公司 | Signal transmission method, base station and user equipment in asymmetric carrier aggregation |
| CN109963338B (en) * | 2017-12-25 | 2023-07-21 | 成都鼎桥通信技术有限公司 | Scheduling method and system for uplink carrier in special LTE-FDD cell |
| CN117461267A (en) * | 2022-04-19 | 2024-01-26 | 中兴通讯股份有限公司 | Method and system for initial access in asymmetric carrier aggregation |
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| CN105491675B (en) | 2019-03-26 |
| CN109673057B (en) | 2021-01-26 |
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