CN101686555B - Method and device for processing uplink random access resources - Google Patents
Method and device for processing uplink random access resources Download PDFInfo
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- CN101686555B CN101686555B CN 200810165946 CN200810165946A CN101686555B CN 101686555 B CN101686555 B CN 101686555B CN 200810165946 CN200810165946 CN 200810165946 CN 200810165946 A CN200810165946 A CN 200810165946A CN 101686555 B CN101686555 B CN 101686555B
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Abstract
The invention discloses a method and a device for processing uplink random access resources, which are applied to a communication system comprising a core network, a base station and a terminal. The method comprises the following steps: the base station receives and sends a predetermined event informing message from the core network to the terminal and adds uplink random access resources so that the terminal completes the uplink random access process. The invention relieves the network congestion.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of processing method and device of uplink random access resources.
Background technology
In order to respond actively the natural calamity such as seismic sea wave, considering at present to design a cover seismic sea wave early warning system (Earthquake and Tsunami Warning System is referred to as ETWS).Fig. 1 is the structured flowchart according to the ETWS of correlation technique, as shown in Figure 1, ETWS is applied to public land mobile network (Public Land Mobile Network, referred to as PLMN), ETWS server (comprising ETWS server 1 and ETWS server 2) communicates by gateway and base station, by using ETWS, can be when the natural calamities such as generation seismic sea wave, in time send the relevant information of disaster to the user, thus the impact on the mankind that alleviates the natural calamities such as seismic sea wave.
in existing network environment, do not fully take into account the situation of emergency communication during due to design, usually user's access-in resource of design is limited, cause after the natural disasters such as seismic sea wave occur, because the number of users that needs in the short time to communicate by letter sharply increases, the number of users of access when requiring simultaneously the number of users of access network to be far longer than the design of system, wherein, the user of above-mentioned access network refers to the terminal under idle condition, terminal under this idle condition only has down-going synchronous, can receive the information from the base station, but because there is no uplink synchronous, can not initiate uplink service, but after the natural disasters such as seismic sea wave occur, be subjected to the terminal that natural disaster affects all to need to initiate immediately uplink service, terminal under all idle conditions like this, all need at first to do the uplink random access procedure, principle according to random access, terminal can be distinguished the user by random access sequence or different access-in resource.
For ETWS, the quantity of random access sequence is limited, how much can further increasing of the resource of random access, under general state, the resource of random access is all fewer, if but after the natural disasters such as seismic sea wave, the resource of random access is still fewer, because the number of users that requires simultaneously to carry out the uplink random access sharply increases, probability that a large amount of users bumps in random access procedure improves, so cause the user in time access network communicate.
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.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the ETWS of correlation technique;
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;
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;
Fig. 4 is the structured flowchart according to the base station of the embodiment of the present invention.
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.
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.
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.
Claims (7)
1. the processing method of a uplink random access resources is applied to comprise it is characterized in that the communication system of core net, base station and terminal, and described method comprises:
Described base station receives and sends scheduled event notification message from described core net to all described terminals, and increases uplink random access resources, so that described terminal is completed the uplink random access procedure;
Wherein, described base station sends described scheduled event notification message to all described terminals, and the increase uplink random access resources specifically comprises: described base station sends described scheduled event notification message to all described terminals in scheduled duration after, described base station increases described uplink random access resources, so that described terminal is completed the uplink random access procedure, perhaps, described base station increases described uplink random access resources, and sends described scheduled event notification message to all described terminals in scheduled duration;
Wherein, described base station and the described terminal uplink random access resources of making an appointment and increasing;
Wherein, described scheduled event notification message is used for the information that scheduled event occurs notice, and described scheduled event is seismic sea wave early warning event.
2. method according to claim 1, is characterized in that, after described base station increased uplink random access resources, described method also comprised:
In response to the described scheduled event notification message that described terminal receives, described terminal uses original uplink random access resources to initiate the uplink random access process to described base station in described scheduled duration;
The described scheduled event notification message that receives in response to described terminal, after the described scheduled duration of described terminal wait, use the described uplink random access resources of described original uplink random access resources or increase to complete the uplink random access procedure to described base station.
3. method according to claim 1, is characterized in that, after described terminal sent described scheduled event notification message to all in scheduled duration in described base station, described method also comprised:
In response to the described scheduled event notification message that described terminal receives, described terminal uses the described uplink random access resources that increases to complete the uplink random access procedure to described base station; Or
In response to the described scheduled event notification message that described terminal receives, described terminal uses original uplink random access resources to complete the uplink random access procedure to described base station.
4. the described method of any one according to claim 1 to 3, is characterized in that, described increase uplink random access resources specifically comprises:
Increase each residential quarter uplink random access sequence and/or increase the physical resource of uplink random access.
5. the described method of any one according to claim 1 to 3 is characterized in that:
The described uplink random access resources that described base station notifies described terminal to increase by system broadcasts.
6. method according to claim 1, is characterized in that, after increasing uplink random access resources, described method also comprises:
When the terminal quantity that is in connection status in network drops to predetermined threshold, the described uplink random access resources that the deletion of described base station increases.
7. a base station, is characterized in that, comprising:
Receiver module is used for receiving the scheduled event notification message from core net;
Sending module is used for sending described scheduled event notification message to all terminals;
Processing module is for increasing uplink random access resources;
Wherein, described base station sends described scheduled event notification message to all described terminals, and the increase uplink random access resources specifically comprises: described base station sends described scheduled event notification message to all described terminals in scheduled duration after, described base station increases described uplink random access resources, so that described terminal is completed the uplink random access procedure, perhaps, described base station increases described uplink random access resources, and sends described scheduled event notification message to all described terminals in scheduled duration;
Wherein, described base station and the described terminal uplink random access resources of making an appointment and increasing;
Wherein, described scheduled event notification message is used for the information that scheduled event occurs notice, and described scheduled event is seismic sea wave early warning event.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810165946 CN101686555B (en) | 2008-09-25 | 2008-09-25 | Method and device for processing uplink random access resources |
| PCT/CN2009/072375 WO2010034208A1 (en) | 2008-09-25 | 2009-06-22 | Method for processing uplink random access resources and equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810165946 CN101686555B (en) | 2008-09-25 | 2008-09-25 | Method and device for processing uplink random access resources |
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| CN101686555A CN101686555A (en) | 2010-03-31 |
| CN101686555B true CN101686555B (en) | 2013-06-05 |
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| CN 200810165946 Expired - Fee Related CN101686555B (en) | 2008-09-25 | 2008-09-25 | Method and device for processing uplink random access resources |
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| WO (1) | WO2010034208A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107770877A (en) * | 2016-08-19 | 2018-03-06 | 北京佰才邦技术有限公司 | One kind is first listened sends out LBT execution methods and relevant apparatus afterwards |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111511040A (en) | 2015-09-25 | 2020-08-07 | 华为技术有限公司 | Method, equipment and system for generating random access sequence |
| CN108696893B (en) * | 2017-04-07 | 2023-03-17 | 中兴通讯股份有限公司 | Uplink data sending method, device, base station and user equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658542A (en) * | 2004-02-17 | 2005-08-24 | 华为技术有限公司 | Method for setting wireless access load |
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| US7813754B2 (en) * | 2004-06-17 | 2010-10-12 | Ntt Docomo, Inc. | Transfer rate control method, transmission power control method, transmission power ratio control method, mobile communication system, mobile station, and radio base station |
| CN1780457A (en) * | 2004-11-24 | 2006-05-31 | 北京三星通信技术研究有限公司 | Wireless channel resource allocation |
| JP4521308B2 (en) * | 2005-03-29 | 2010-08-11 | 株式会社エヌ・ティ・ティ・ドコモ | Transmission rate control method, mobile station and radio network controller |
| JP4856189B2 (en) * | 2005-11-23 | 2012-01-18 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Method, computer program, and base station for prediction-based processing resource allocation in non-resident base stations |
| WO2008057016A1 (en) * | 2006-11-06 | 2008-05-15 | Telefonaktiebolaget Lm Ericsson (Publ) | A method of controlling power in a wcdma system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658542A (en) * | 2004-02-17 | 2005-08-24 | 华为技术有限公司 | Method for setting wireless access load |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107770877A (en) * | 2016-08-19 | 2018-03-06 | 北京佰才邦技术有限公司 | One kind is first listened sends out LBT execution methods and relevant apparatus afterwards |
| CN107770877B (en) * | 2016-08-19 | 2019-12-13 | 北京佰才邦技术有限公司 | listen before send LBT (local binary Transmission) execution method and related device |
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| WO2010034208A1 (en) | 2010-04-01 |
| CN101686555A (en) | 2010-03-31 |
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