CN107889271A - A kind of method and device of Stochastic accessing - Google Patents
A kind of method and device of Stochastic accessing Download PDFInfo
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- CN107889271A CN107889271A CN201610873114.6A CN201610873114A CN107889271A CN 107889271 A CN107889271 A CN 107889271A CN 201610873114 A CN201610873114 A CN 201610873114A CN 107889271 A CN107889271 A CN 107889271A
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- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000013507 mapping Methods 0.000 claims description 41
- 230000003068 static effect Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000004913 activation Effects 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
The invention discloses a kind of method and device of Stochastic accessing.This method includes：The synchronizing signal SS that mobile terminal detection base station is sent, and carry out time and Frequency Synchronization；The mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads key system perameter；The mobile terminal initiates random access request to the base station, and carries request message by the RAACH, to cause the base station to reserve resource as Physical Random Access Channel PRACH according to the request message；The mobile terminal initiates Stochastic accessing in the PRACH, so as to need Stochastic accessing then to configure random access resource, random access resource is not configured then when not needing Stochastic accessing, therefore the expense of random access resource can be reduced, random access resource is changed into On demand signals from always on signals simultaneously.
Description
Technical field
The present embodiments relate to the technical field of communication, more particularly to a kind of method and device of Stochastic accessing.
Background technology
At present, just under discussion, the targeted rate that it is designed is higher for the design of the 5th third-generation mobile communication, while in order to prop up
More more flexible vertical applications scenes are held, also for keeping preferable forward compatibility on the premise of various demands are met,
Its one of requirement designed is to reduce the transmission of always on signals, while reduces the expense of system, imitates system spectrum
Rate is further lifted.
For random access resource, before UE accesses network, network is unknown to UE information, in order to ensure that UE's is suitable
Profit access, prior art are all the fixed random access resources of configuration, can quickly access UE, but do not have UE to connect in network
Fashionable, because network can not know whether to have UE accesses, therefore random access resource is still required for reserving.Meanwhile in order to drop
The expense of low random access resource, network can count data needed for UE access, decide whether to configure more Stochastic accessing
Resource or less random access resource, but this it is achieved in that periodically therefore expense is also larger.
The content of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device of Stochastic accessing, it is intended to solution how to reduce with
The expense of machine access.
To use following technical scheme up to this purpose, the embodiment of the present invention：
In a first aspect, a kind of method of Stochastic accessing, methods described include：
The synchronizing signal SS that mobile terminal detection base station is sent, and carry out time and Frequency Synchronization；
The mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads key system perameter, institute
Stating key system perameter includes RAACH relevant configuration；The RAACH is mapped to physical accidental access activation channel PRAACH,
Or predefined channel；
The mobile terminal initiates random access request to the base station, and carries request message by the RAACH, with
So that the base station is that Physical Random Access Channel PRACH reserves resource according to the request message；
The mobile terminal initiates Stochastic accessing in the PRACH.
Second aspect, a kind of method of Stochastic accessing, methods described include：
Physical channel corresponding to base station detection RAACH, obtains RAACH message；
The base station determines whether the mobile terminal needs to access by the RAACH request messages；
If the base station determines that the mobile terminal needs to access, resource is reserved for PRACH, it is described mobile whole to cause
Stochastic accessing is initiated in the PRACH in end；
If the base station does not detect that the mobile terminal needs to access, normal is kept to PRACH resources below
The data of scheduling.
Preferably, methods described also includes：
The base station is pre-configured with the RAACH and its mapping PRAACH or physical channel set in advance, described
The message carried in RAACH is used to indicate whether to activate PRACH.
Preferably, the base station is pre-configured with the RAACH and its mapping PRAACH or predefined physical channel,
Including：
The static PRAACH for being either semi-statically configured the RAACH and its mapping in the base station or predefined physics letter
Road；
The base station carries out configuring message transmission by broadcast message；When system is using fixed configuration mode, then institute
State base station and the configuration message is broadcasted by the configuration mode of the fixation.
Preferably, the base station is static or is semi-statically configured the RAACH and its mapping PRAACH or predefined
Physical channel, including：
When the request message during the base station detects RAACH in the physical channel is activate message, when default
Between PRACH in section T_win be effective；
When the request message during the base station detects RAACH in the physical channel is not activate message, default
PRACH in period T_win is invalid.
Preferably, the base station static PRAACH for being either semi-statically configured the RAACH and its mapping or predefined
Physical channel, including：
The base station configures the physical channel position that the RAACH is mapped to and the message content carried in RAACH and institute
State the mapping relations between PRACH position.
Preferably, the base station static PRAACH for being either semi-statically configured the RAACH and its mapping or predefined
Physical channel, including：
The base station configures the RAACH of the RAACH mappings or predefined physical channel includes fixed at least one
Individual sequence；
The base station configures the RAACH of the RAACH mappings or predefined physical channel；
Wherein, the RAACH carries the scheduling that message is used for the base station.
The third aspect, a kind of device of Stochastic accessing, described device include：
Detection module, for detecting the synchronizing signal SS of base station transmission, and carry out time and Frequency Synchronization；
Acquisition module, for demodulating Physical Broadcast Channel PBCH according to the information of the SS and reading key system perameter,
The key system perameter includes the relevant configuration of the RAACH；The RAACH is mapped to physical accidental access activation channel
PRAACH, or predefined channel；
First sending module, for initiating random access request to the base station, and request is carried by the RAACH and disappeared
Breath, to cause the base station to reserve resource as Physical Random Access Channel PRACH according to the request message；
Second sending module, Stochastic accessing is initiated in the PRACH for the mobile terminal.
Fourth aspect, a kind of device of Stochastic accessing, described device include：
Detection module, for detecting physical channel corresponding to RAACH, obtain RAACH message；
Determining module, for determining whether the mobile terminal needs to access by the RAACH request messages；
Processing module, if determining that the mobile terminal needs to access for the base station, resource is reserved for PRACH, with
So that the mobile terminal initiates Stochastic accessing in the PRACH；
Module is kept, if not detecting that the mobile terminal needs to access for the base station, to PRACH below
Resource keeps the data of normal consistency.
Preferably, described device also includes：
Configuration module, for the PRAACH for being pre-configured with the RAACH and its mapping or predefined physical channel, institute
The message carried in RAACH is stated to be used to indicate whether to activate PRACH.
Preferably, the configuration module, is specifically used for：
The RAACH and its mapping PRAACH or predefined physical channel are either semi-statically configured by static state；
The base station carries out configuring message transmission by broadcast message；When system is using fixed configuration mode, then institute
State base station and the configuration message is broadcasted by the configuration mode of the fixation.
Preferably, the configuration module, also particularly useful for：
When the request message during the base station detects RAACH in the physical channel is activate message, when default
Between PRACH in section T_win be effective；
When the request message during the base station detects RAACH in the physical channel is not activate message, default
PRACH in period T_win is invalid.
Preferably, the configuration module, also particularly useful for：
The message content carried in the physical channel position and RAACH that the RAACH is mapped to is configured with the PRACH's
Mapping relations between position.
Preferably, the configuration module, also particularly useful for：
The RAACH or predefined physical channel for configuring the RAACH mappings include fixed at least one sequence；
Configure the RAACH of the RAACH mappings or predefined physical channel；
Wherein, the RAACH carries the scheduling that message is used for the base station.
The embodiment of the present invention provides a kind of method and device of Stochastic accessing, the synchronous letter that mobile terminal detection base station is sent
Number SS, and carry out time and Frequency Synchronization；The mobile terminal demodulates Physical Broadcast Channel PBCH simultaneously according to the information of the SS
Key system perameter is read, the key system perameter includes Physical Random Access Channel RAACH relevant configuration；The movement
Terminal to the base station initiate random access request, and by the RAACH carry request message, with cause the base station according to
The request message is that Physical Random Access Channel PRACH reserves resource；The mobile terminal is initiated at random in the PRACH
Access, so as to need Stochastic accessing then to configure random access resource, it is not necessary to do not configure Stochastic accessing money during Stochastic accessing then
Source, therefore the expense of random access resource can be reduced, while random access resource is changed into On from always on signals
Demand signals.
Brief description of the drawings
Fig. 1 is that the embodiment of the present invention provides a kind of schematic flow sheet of the method for Stochastic accessing；
Fig. 2 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention；
Fig. 3 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention；
Fig. 4 is a kind of high-level schematic functional block diagram of the device of Stochastic accessing provided in an embodiment of the present invention；
Fig. 5 is the high-level schematic functional block diagram of the device of another Stochastic accessing provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.In addition also
It should be noted that for the ease of describing, the part related to the embodiment of the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
With reference to figure 1, Fig. 1 is a kind of schematic flow sheet of the method for Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 1, the method for the Stochastic accessing includes：
Step 101, the synchronizing signal SS that mobile terminal detection base station is sent, and carry out time and Frequency Synchronization；
Step 102, the mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads crucial system
Unite parameter, the key system perameter include Stochastic accessing activation channel (Random Access Active Channel,
RAACH relevant configuration)；The RAACH includes being mapped to Physical Random Access Channel (Physical Random Access
Channel, PRACH), or predefined channel；
Step 103, the mobile terminal initiates random access request to the base station, and is carried and asked by the RAACH
Message is sought, to cause the base station to reserve resource as Physical Random Access Channel PRACH according to the request message；
Step 104, the mobile terminal initiates Stochastic accessing in the PRACH.
The embodiment of the present invention provides a kind of method of Stochastic accessing, and mobile terminal detects the synchronizing signal SS that base station is sent,
And carry out time and Frequency Synchronization；The mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads pass
Key system parameter, the key system perameter include Physical Random Access Channel RAACH relevant configuration；The mobile terminal to
Random access request is initiated in the base station, and carries request message by the RAACH, to cause the base station to be asked according to described
Message is asked to reserve resource for Physical Random Access Channel PRACH；The mobile terminal initiates Stochastic accessing in the PRACH,
So as to need Stochastic accessing then to configure random access resource, it is not necessary to random access resource is not configured during Stochastic accessing then, because
This can reduce the expense of random access resource, while random access resource is changed into On demand from always on signals
Signal.
With reference to figure 2, Fig. 2 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention.
As shown in Fig. 2 the method for the Stochastic accessing includes：
Step 201, the random access request that detection mobile terminal in base station is sent, and detect whether the mobile terminal passes through
RAACH carries activate message；
Step 202, the base station determines whether the mobile terminal needs to access by the RAACH request messages；
Step 203, if the base station determines that the mobile terminal needs to access, resource is reserved for PRACH, to cause
State mobile terminal and initiate Stochastic accessing in the PRACH；
Step 204, if the base station does not detect that the mobile terminal needs to access, to PRACH resources below
Keep the data of normal consistency.
The embodiment of the present invention provides a kind of method of Stochastic accessing, and mobile terminal detects the synchronizing signal SS that base station is sent,
And carry out time and Frequency Synchronization；The mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads pass
Key system parameter, the key system perameter include Physical Random Access Channel RAACH relevant configuration；The mobile terminal to
Random access request is initiated in the base station, and carries request message by the RAACH, to cause the base station to be asked according to described
Message is asked to reserve resource for Physical Random Access Channel PRACH；The mobile terminal initiates Stochastic accessing in the PRACH,
So as to need Stochastic accessing then to configure random access resource, it is not necessary to random access resource is not configured during Stochastic accessing then, because
This can reduce the expense of random access resource, while random access resource is changed into On demand from always on signals
Signal.
With reference to figure 3, Fig. 3 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 3, the method for the Stochastic accessing includes：
Step 301, base station is pre-configured with the RAACH and its mapping PRAACH or physical channel set in advance,
The message carried in the RAACH is used to indicate whether to activate PRACH；
Preferably, the base station is pre-configured with the RAACH and its mapping PRAACH or predefined physical channel,
Including：
The static PRAACH for being either semi-statically configured the RAACH and its mapping in the base station or predefined physics letter
Road；
The base station carries out configuring message transmission by broadcast message；When system is using fixed configuration mode, then institute
State base station and the configuration message is broadcasted by the configuration mode of the fixation.
Preferably, the base station is static or is semi-statically configured the RAACH and its mapping PRAACH or predefined
Physical channel, including：
When the request message during the base station detects RAACH in the physical channel is activate message, when default
Between PRACH in section T_win be effective；
When the request message during the base station detects RAACH in the physical channel is not activate message, default
PRACH in period T_win is invalid.
Preferably, the base station static PRAACH for being either semi-statically configured the RAACH and its mapping or predefined
Physical channel, including：
The base station configures the physical channel position that the RAACH is mapped to and the message content carried in RAACH and institute
State the mapping relations between PRACH position.
Preferably, the base station static PRAACH for being either semi-statically configured the RAACH and its mapping or predefined
Physical channel, including：
The base station configures the RAACH of the RAACH mappings or predefined physical channel includes fixed at least one
Individual sequence；
The base station configures the RAACH of the RAACH mappings or predefined physical channel；
Wherein, the RAACH carries the scheduling that message is used for the base station.
Step 302, physical channel corresponding to base station detection RAACH, obtains RAACH message；
Step 303, base station determines whether the mobile terminal needs to access by the RAACH request messages；
Step 304, if the base station determines that the mobile terminal needs to access, resource is reserved for PRACH, to cause
State mobile terminal and initiate Stochastic accessing in the PRACH；
Step 305, if the base station does not detect that the mobile terminal needs to access, to PRACH resources below
Keep the data of normal consistency.
With reference to figure 4, Fig. 4 is a kind of high-level schematic functional block diagram of the device of Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 4, the device of the Stochastic accessing includes：
Detection module 401, for detecting the synchronizing signal SS of base station transmission, and carry out time and Frequency Synchronization；
Acquisition module 402, for demodulating Physical Broadcast Channel PBCH according to the information of the SS and reading critical system ginseng
Number, the key system perameter include RAACH relevant configuration；The RAACH is mapped to physical accidental access activation channel
PRAACH, or predefined channel；
First sending module 403, for initiating random access request to the base station, and carried and asked by the RAACH
Message is sought, to cause the base station to reserve resource as Physical Random Access Channel PRACH according to the request message；
Second sending module 404, Stochastic accessing is initiated in the PRACH for the mobile terminal.
The embodiment of the present invention provides a kind of device of Stochastic accessing, and mobile terminal detects the synchronizing signal SS that base station is sent,
And carry out time and Frequency Synchronization；The mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads pass
Key system parameter, the key system perameter include Physical Random Access Channel RAACH relevant configuration；The mobile terminal to
Random access request is initiated in the base station, and carries request message by the RAACH, to cause the base station to be asked according to described
Message is asked to reserve resource for Physical Random Access Channel PRACH；The mobile terminal initiates Stochastic accessing in the PRACH,
So as to need Stochastic accessing then to configure random access resource, it is not necessary to random access resource is not configured during Stochastic accessing then, because
This can reduce the expense of random access resource, while random access resource is changed into On demand from always on signals
Signal.
With reference to figure 5, Fig. 5 is the high-level schematic functional block diagram of the device of another Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 5, the device of the Stochastic accessing includes：
Detection module 501, for detecting physical channel corresponding to RAACH, obtain RAACH message；
Determining module 502, for determining whether the mobile terminal needs to access by the RAACH request messages；
Processing module 503, if determining that the mobile terminal needs to access for the base station, resource is reserved for PRACH,
To cause the mobile terminal to initiate Stochastic accessing in the PRACH；
Module 504 is kept, if do not detect that the mobile terminal needs to access for the base station, to below
PRACH resources keep the data of normal consistency.
Preferably, described device also includes：
Configuration module, for the PRAACH for being pre-configured with the RAACH and its mapping or predefined physical channel, institute
The message carried in RAACH is stated to be used to indicate whether to activate PRACH.
Preferably, the configuration module, is specifically used for：
The RAACH and its mapping PRAACH or predefined physical channel are either semi-statically configured by static state；
Carry out configuring message transmission by broadcast message；When system is using fixed configuration mode, then the base station leads to
The configuration mode for crossing the fixation broadcasts the configuration message.
Preferably, the configuration module, also particularly useful for：
When the request message during the base station detects RAACH in the physical channel is activate message, when default
Between PRACH in section T_win be effective；
When the request message during the base station detects RAACH in the physical channel is not activate message, default
PRACH in period T_win is invalid.
Preferably, the configuration module, also particularly useful for：
The message content carried in the physical channel position and RAACH that the RAACH is mapped to is configured with the PRACH's
Mapping relations between position.
Preferably, the configuration module, also particularly useful for：
The RAACH or predefined physical channel for configuring the RAACH mappings include fixed at least one sequence；
Configure the RAACH of the RAACH mappings or predefined physical channel；
Wherein, the RAACH carries the scheduling that message is used for the base station.
The embodiment of the present invention provides a kind of device of Stochastic accessing, and mobile terminal detects the synchronizing signal SS that base station is sent,
And carry out time and Frequency Synchronization；The mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads pass
Key system parameter, the key system perameter include Physical Random Access Channel RAACH relevant configuration；The mobile terminal to
Random access request is initiated in the base station, and carries request message by the RAACH, to cause the base station to be asked according to described
Message is asked to reserve resource for Physical Random Access Channel PRACH；The mobile terminal initiates Stochastic accessing in the PRACH,
So as to need Stochastic accessing then to configure random access resource, it is not necessary to random access resource is not configured during Stochastic accessing then, because
This can reduce the expense of random access resource, while random access resource is changed into On demand from always on signals
Signal.
The technical principle of the embodiment of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain this
The principle of inventive embodiments, and the limitation to protection domain of the embodiment of the present invention can not be construed in any way.Based on herein
Explanation, those skilled in the art, which would not require any inventive effort, can associate the other specific of the embodiment of the present invention
Embodiment, these modes are fallen within the protection domain of the embodiment of the present invention.
Claims (14)
- A kind of 1. method of Stochastic accessing, it is characterised in that methods described includes：The synchronizing signal SS that mobile terminal detection base station is sent, and carry out time and Frequency Synchronization；The mobile terminal demodulates Physical Broadcast Channel PBCH according to the information of the SS and reads key system perameter, the pass Key system parameter includes Stochastic accessing activation channel RAACH relevant configuration, and the RAACH is mapped to physical accidental access activation Channel PRAACH, or predefined channel；The mobile terminal initiates random access request to the base station, and carries request message by the RAACH, to cause The base station is that the PRACH reserves resource according to the request message；The mobile terminal initiates Stochastic accessing in the PRACH.
- A kind of 2. method of Stochastic accessing, it is characterised in that methods described includes：Physical channel corresponding to base station detection RAACH, obtains RAACH message；The base station determines whether the mobile terminal needs to access by the RAACH request messages；If the base station determines that the mobile terminal needs to access, resource is reserved for PRACH, to cause the mobile terminal to exist Stochastic accessing is initiated in the PRACH；If the base station does not detect that the mobile terminal needs to access, normal consistency is kept to PRACH resources below Data.
- 3. according to the method for claim 2, it is characterised in that methods described also includes：The base station is pre-configured with the RAACH and its mapping PRAACH or physical channel set in advance, the RAACH The message of middle carrying is used to indicate whether to activate PRACH.
- 4. according to the method for claim 3, it is characterised in that the base station is pre-configured with the RAACH and its mapping PRAACH or predefined physical channel, including：The base station is static to be either semi-statically configured the RAACH and its mapping PRAACH or predefined physical channel；The base station carries out configuring message transmission by broadcast message；When system is using fixed configuration mode, then the base Stand and the configuration message is broadcasted by the configuration mode of the fixation.
- 5. according to the method for claim 4, it is characterised in that the base station it is static or be semi-statically configured the RAACH and Its PRAACH mapped or predefined physical channel, including：When the request message during the base station detects RAACH in the physical channel is activate message, in preset time period PRACH in T_win is effective；When the request message during the base station detects RAACH in the physical channel is not activate message, in preset time PRACH in section T_win is invalid.
- 6. according to the method for claim 4, it is characterised in that the base station is static or is semi-statically configured the RAACH And its PRAACH or the predefined physical channel of mapping, including：The base station configure the physical channel position that the RAACH is mapped to and the message content carried in RAACH with it is described Mapping relations between PRACH position.
- 7. according to the method for claim 4, it is characterised in that the base station is static or is semi-statically configured the RAACH And its PRAACH or the predefined physical channel of mapping, including：The base station configures the RAACH of the RAACH mappings or predefined physical channel includes fixed at least one sequence Row；The base station configures the RAACH of the RAACH mappings or predefined physical channel；Wherein, the RAACH carries the scheduling that message is used for the base station.
- 8. a kind of device of Stochastic accessing, it is characterised in that described device includes：Detection module, for detecting the synchronizing signal SS of base station transmission, and carry out time and Frequency Synchronization；Acquisition module, it is described for demodulating Physical Broadcast Channel PBCH according to the information of the SS and reading key system perameter Key system perameter includes Stochastic accessing activation channel RAACH relevant configuration, and the RAACH connects including being mapped to physical accidental Enter channel PRAACH, or predefined channel；First sending module, for initiating random access request to the base station, and activate message is carried by the RAACH, To cause the base station to reserve resource as Physical Random Access Channel PRACH according to the request message；Second sending module, Stochastic accessing is initiated in the PRACH for the mobile terminal.
- 9. a kind of device of Stochastic accessing, it is characterised in that described device includes：Detection module, for detecting physical channel corresponding to RAACH, obtain RAACH message；Determining module, for determining whether the mobile terminal needs to access by the RAACH request messages；Processing module, if determining that the mobile terminal needs to access for the base station, resource is reserved for PRACH, to cause The mobile terminal initiates Stochastic accessing in the PRACH；Module is kept, if not detecting that the mobile terminal needs to access for the base station, to PRACH resources below Keep the data of normal consistency.
- 10. device according to claim 9, it is characterised in that described device also includes：Configuration module, it is described for the PRAACH for being pre-configured with the RAACH and its mapping or physical channel set in advance The message carried in RAACH is used to indicate whether to activate PRACH.
- 11. device according to claim 10, it is characterised in that the configuration module, be specifically used for：The RAACH and its mapping PRAACH or predefined physical channel are either semi-statically configured by static state；Carry out configuring message transmission by broadcast message；When system is using fixed configuration mode, then the base station passes through institute State fixed configuration mode and broadcast the configuration message.
- 12. device according to claim 11, it is characterised in that the configuration module, also particularly useful for：When the request message during the base station detects RAACH in the physical channel is activate message, in preset time period PRACH in T_win is effective；When the request message during the base station detects RAACH in the physical channel is not activate message, in preset time PRACH in section T_win is invalid.
- 13. device according to claim 11, it is characterised in that the configuration module, also particularly useful for：Configure the position of the message content and the PRACH that are carried in the physical channel position and RAACH that the RAACH is mapped to Between mapping relations.
- 14. device according to claim 11, it is characterised in that the configuration module, also particularly useful for：The RAACH or predefined physical channel for configuring the RAACH mappings include fixed at least one sequence；Configure the RAACH of the RAACH mappings or predefined physical channel；Wherein, the RAACH carries the scheduling that message is used for the base station.
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| CN103024910A (en) * | 2007-09-12 | 2013-04-03 | 北方电讯网络有限公司 | Systems and methods for uplink signalling |
| CN101472343B (en) * | 2007-12-26 | 2010-11-03 | 鼎桥通信技术有限公司 | Random access method and system |
| CN101489305A (en) * | 2008-01-17 | 2009-07-22 | 大唐移动通信设备有限公司 | Uplink data transmission method, communication system and apparatus |
| CN102209391A (en) * | 2010-03-29 | 2011-10-05 | 华为技术有限公司 | Random access resource configuration method and device |
| CN101977401A (en) * | 2010-10-27 | 2011-02-16 | 中兴通讯股份有限公司 | User terminal random access method and system |
| US20150009813A1 (en) * | 2012-02-17 | 2015-01-08 | Nec Corporation | Method of controlling machine-type communications (mtc) in a wireless communications network |
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