Summary of the invention
For can cause the in time problem that communicates of access network and propose the present invention of user in prior art under predetermined case, for this reason, the present invention aims to provide a kind of processing method and device of uplink random access resources, to address the above problem.
A kind of processing method of uplink random access resources is provided according to an aspect of the present invention.
Processing method according to uplink random access resources of the present invention, be applied to comprise the communication system of core net, base station and terminal, said method comprises: the base station receives and sends scheduled event notification message from core net to all terminals, and the increase uplink random access resources, so that terminal is completed the uplink random access process.
Preferably, the base station sends the scheduled event notification message to all terminals, and the increase uplink random access resources specifically comprises: the base station sends scheduled event notification messages to all terminals in scheduled duration after, the base station increases uplink random access resources.
Preferably, after the base station increases uplink random access resources, said method also comprises: in response to the scheduled event notification message that terminal receives, terminal uses original uplink random access resources to complete the uplink random access procedure to the base station in scheduled duration; Scheduled event notification message in response to terminal receives after the terminal wait scheduled duration, uses the uplink random access resources of original uplink random access resources or increase to complete the uplink random access procedure to the base station.
Preferably, the base station sends the scheduled event notification message to all terminals, and the increase uplink random access resources specifically comprises: the base station increases uplink random access resources, and sends the scheduled event notification message to terminal in scheduled duration.
Preferably, in the base station in scheduled duration after all terminals send scheduled event notification messages, said method also comprises: in response to the scheduled event notification message that terminal receives, terminal uses the uplink random access resources that increases to complete the uplink random access procedure to the base station; Or the scheduled event notification message that receives in response to terminal, terminal uses original uplink random access resources to complete the uplink random access procedure to the base station.
Preferably, increasing uplink random access resources specifically comprises: increase each residential quarter the uplink random access sequence and/or increase the physical resource of uplink random access.
Preferably, the base station is by the uplink random access resources of system broadcasts notification terminal increase; Or base station and the terminal uplink random access resources of making an appointment and increasing.
Preferably, after increasing uplink random access resources, said method also comprises: when the terminal quantity that is in connection status in network drops to predetermined threshold, and the uplink random access resources that the base station deletion increases.
Preferably, the scheduled event notification message is used for the information that scheduled event occurs notice, and wherein, scheduled event is seismic sea wave early warning event.
According to a further aspect in the invention, provide a kind of base station.
Base station according to the present invention comprises: receiver module is used for receiving the scheduled event notification message from core net; Sending module is used for sending the scheduled event notification message to all terminals; Processing module is for increasing uplink random access resources.
By the present invention, adopt base station in response to increase the method for uplink random access resources in the scheduled event notification message, solved can cause the in time problem that communicates of access network of user in the prior art under predetermined case, alleviated the congested of network.
Embodiment
Functional overview
The embodiment of the present invention provides a kind of processing method of uplink random access resources, a kind of base station also is provided, base station in response in scheduled event (for example, the early warning events such as seismic sea wave) notification message, send this scheduled event notification message to terminal, and increase uplink random access resources, after this, terminal receives this scheduled event notification message, and completes the uplink random access procedure to described base station.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Embodiment of the method
According to embodiments of the invention, provide a kind of processing method of uplink random access resources.
Processing method according to uplink random access resources of the present invention, be applied to comprise the communication system of core net, base station and terminal, said method comprises: the base station receives and sends scheduled event notification message from core net to terminal, and increase uplink random access resources, so that terminal is completed the uplink random access process, wherein, the operation that increases uplink random access resources specifically comprises: increase each residential quarter the uplink random access sequence and/or increase the physical resource of uplink random access.
Wherein, before increasing uplink random access resources, the uplink random access resources that base station and terminal can be made an appointment and be increased, after the base station increased uplink random access resources, no longer which resource notification terminal had specifically increased.
Perhaps, the uplink random access resources that the base station will increase is some resources of base station side offhand decision, and the uplink random access resources that these newly increase is known by certain mode notification terminal in the base station; For example, the uplink random access resources of all terminals increases can be notified by the mode of system broadcasts in the base station.
Particularly, the base station sends the scheduled event notification message to terminal, and increases uplink random access resources and one of specifically can be in the following manner operate:
(1) after the base station sent the scheduled event notification message to all terminals in scheduled duration, the base station increased uplink random access resources; Wherein, scheduled duration refers to that the base station of agreement regulation is the needed time of all terminals of message informing that the ETWS event occurs; For example, be to notify all terminals in 4s at present in LTE.
After this, end side can proceed as follows: after the scheduled event notification message that receives in response to terminal, terminal after scheduled duration in, terminal uses original uplink random access resources to complete the uplink random access procedure to the base station; After terminal receives the scheduled event notification message, then after waiting for scheduled duration, terminal uses the uplink random access resources of original uplink random access resources or increase to complete the uplink random access procedure to the base station.
(2) base station increases uplink random access resources, and afterwards, the base station sends the scheduled event notification message to all terminals in scheduled duration.
After this, end side can proceed as follows: in response to the scheduled event notification message that terminal receives, terminal uses the uplink random access resources that increases to complete the uplink random access procedure to the base station; Or use original uplink random access resources to complete the uplink random access procedure to the base station.
At scheduled event (for example, seismic sea wave) occur in a period of time afterwards, the base station keeps the uplink random access resources of increase, when the terminal quantity that is in connection status in network drops to predetermined threshold, the base station returns to the quantity of normal uplink random access resources, that is, the uplink random access resources of base station deletion increase.
By this embodiment, adopt base station in response to increase the method for uplink random access resources in the scheduled event notification message, for the terminal under idle condition provides more uplink random access resources, solved and to have caused the in time problem that communicates of access network of user in the prior art under predetermined case, reduce the probability that the user bumps, alleviated the congested of network.
To be example with Frequency Division Duplexing (FDD) mode (Frequency Division Duplex is referred to as the FDD) pattern of Long Term Evolution (Long-Term Evolution is referred to as LTE) system be described in detail the implementation procedure of the embodiment of the present invention the below.
The supposing the system bandwidth is 20M, the uplink random access sequence has 838, the uplink random access procedure sequence used of each cell allocation is 64, random access physical resource is 6 Physical Resource Block (Physical Resource Block, referred to as PRB), and each PRB takies whole subframe in time.Terminal is when initiating the uplink random access, and a uplink random access sequence takies the physical resource of whole 6 PRB.Each terminal can be selected different uplink random access sequences by random in the sequence of distributing, and sends to the base station on 6 PRB, and the base station is distinguished terminal by the uplink random sequence.Suppose to occur earthquake or tsunami event.
Embodiment one
Fig. 2 is the flow chart according to the processing method of the uplink random access resources of the embodiment of the present invention one, and as shown in Figure 2, the method comprises:
Step S202, core net sends scheduled event notification message informing base station scheduled event has occured to the base station, the base station is by the message that scheduled event occurs promptly in scheduled duration (for example sending the scheduled event notification message to terminal, be transferred to terminal 4s), afterwards, the base station increases uplink random access resources, need to prove, the base station still keeps existing uplink random access resources.
For example, have 1200 subcarriers under the LTE fdd mode, a PRB accounts for 12 subcarriers on frequency direction, so there are 100 PRB to divide on frequency direction, can increase uplink random access resources by following three kinds of modes:
(1) resource of uplink random access is increased to (6 * 10) individual PRB size, at this moment the uplink random access capability of system is promoted to original 10 times.
(2) sequence that accesses by the uplink random that increases each residential quarter for example, can after scheduled event occurs, be brought up to 128 to the sequence number of the uplink random of each residential quarter access.
(3) increase simultaneously the uplink random access sequence of each residential quarter and the resource of uplink random access.
Above-mentioned three kinds of modes can be alleviated the collision phenomenon in the serious uplink random access procedure that too much brings due to the number of users of initiating simultaneously the uplink random access, improve the reliability of uplink random access.
Wherein, the increase degree of physical resource can draw by emulation.The system of considering is used for sending the size of the physical resource of data service, and what the proportionate relationship that accesses at random physical resource, and concrete numerical value can be drawn by emulation, also can draw according to the operation experience of system.Final determine that the foundation that increases physical resource size is, obtain optimum value in the physical resource utilization ratio that sends data with between the access probability after accessing at random the increase of physical resource by emulation, and can satisfy the access requirement of system.
The increase of sequence is relevant with total sequence number that system can provide, after increasing the access sequence of each residential quarter, as long as can realize that identical sequence is not arranged between adjacent residential quarter by distributing rationally, like this can be many for the sequence number that a residential quarter increases, increase sequence more, the probability of access is larger.The sequence number that increases also obtains by emulation, and final what the foundation of determining to increase sequence is to satisfy system requirements in the random access of this residential quarter, and do not affect the random access of adjacent cell.
Step S204, terminal is after the scheduled event that receives the base station notice, and (for example, 4s) in the duration, terminal can use original uplink random access resources to complete the uplink random access procedure to the base station in scheduled duration; After scheduled duration, terminal can use the uplink random access resources of original uplink random access resources or increase to complete the uplink random access procedure to the base station.
Embodiment two
Fig. 3 is the flow chart according to the processing method of the uplink random access resources of the embodiment of the present invention two, and as shown in Figure 3, the method comprises:
Step S302, core net sends scheduled event notification message informing base station scheduled event has occured to the base station, the base station increases uplink random access resources, need to prove, the base station still keeps existing uplink random access resources, and then the base station to all terminals transmission scheduled event notification message notification terminals, scheduled event has occured in scheduled duration.
For example, have 1200 subcarriers under the LTE fdd mode, a PRB accounts for 12 subcarriers on frequency direction, so there are 100 PRB to divide on frequency direction, can increase uplink random access resources by following three kinds of modes:
(1) resource of uplink random access is increased to (6 * 10) individual PRB size, at this moment the uplink random access capability of system is promoted to original 10 times.
(2) sequence that accesses by the uplink random that increases each residential quarter for example, can after scheduled event occurs, be brought up to 128 to the sequence number of the uplink random of each residential quarter access.
(3) increase simultaneously the uplink random access sequence of each residential quarter and the resource of uplink random access.
Above-mentioned three kinds of modes can be alleviated the collision phenomenon in the serious uplink random access procedure that too much brings due to the number of users of initiating simultaneously the uplink random access, improve the reliability of uplink random access.
Wherein, the increase degree of physical resource can draw by emulation.The system of considering is used for sending the size of the physical resource of data service, and what the proportionate relationship that accesses at random physical resource, and concrete numerical value can be drawn by emulation, also can draw according to the operation experience of system.Final determine that the foundation that increases physical resource size is, obtain optimum value in the physical resource utilization ratio that sends data with between the access probability after accessing at random the increase of physical resource by emulation, and can satisfy the access requirement of system.
The increase of sequence, relevant with total sequence number that system can provide, after increasing the access sequence of each residential quarter, as long as can realize that identical sequence is not arranged between adjacent residential quarter by distributing rationally, the sequence number that can increase for a residential quarter like this is many.Increase sequence more, the probability of access is larger.The sequence number that increases also obtains by emulation, and final what the foundation of determining to increase sequence is to satisfy system requirements in the random access of this residential quarter, and do not affect the random access of adjacent cell.
Receiving terminal just can be initiated the uplink random access on the uplink random access resources that newly increases after the ETWS event of receiving the base station notice.
Step S304, terminal just can use the uplink random access resources of original uplink random access resources or increase to complete the uplink random access procedure to the base station after the scheduled event that receives the base station notice.
Device embodiment
According to embodiments of the invention, a kind of base station is provided, this base station applies is in the communication system that comprises core net, base station and terminal.Fig. 4 is the structured flowchart according to the base station of the embodiment of the present invention, and as shown in Figure 4, this base station comprises: receiver module 42, sending module 44, processing module 46, the below is described in detail said structure.
Receiver module 42 is used for receiving the scheduled event notification message from core net.
Sending module 44 is connected to receiver module 42, is used for sending to all terminals sending the scheduled event notification message with what receiver module 42 received to terminal.
Processing module 46 is connected to receiver module 42, and for increasing uplink random access resources, this operation specifically comprises: increase each residential quarter uplink random access sequence and/or increase the physical resource of uplink random access.
Wherein, sending module 44 sends the scheduled event notification message to terminal, and processing module 46 increases uplink random access resources and one of specifically can be in the following manner operates:
(1) after sending module 44 sent the scheduled event notification message to all terminals in scheduled duration, processing module 46 increased uplink random access resources; Wherein, scheduled duration refers to that the base station of agreement regulation is the needed time of all terminals of message informing that the ETWS event occurs; For example, be to notify all terminals in 4s at present in LTE.
(2) processing module 46 increases uplink random access resources, and afterwards, sending module 44 sends the scheduled event notification message to all terminals in scheduled duration.
Pass through the above embodiment of the present invention, adopt base station in response to increase the method for uplink random access resources in the scheduled event notification message, solved to have caused the in time problem that communicates of access network of user in the prior art under predetermined case, alleviated the congested of network.
obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.