CN101330308A - Method for rapidly switching relay station, apparatus and wireless communication network - Google Patents
Method for rapidly switching relay station, apparatus and wireless communication network Download PDFInfo
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- CN101330308A CN101330308A CNA2007101177831A CN200710117783A CN101330308A CN 101330308 A CN101330308 A CN 101330308A CN A2007101177831 A CNA2007101177831 A CN A2007101177831A CN 200710117783 A CN200710117783 A CN 200710117783A CN 101330308 A CN101330308 A CN 101330308A
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Abstract
The invention discloses a fast switching method of a relay station and a device thereof, and a wireless communication network. The method comprises the following steps: step one, a priority message is determined by the relay station according to the quality information of channels for an affiliated user terminal and/or a slave relay station; step two, the priority message is in the relay station within the scope of a setting threshold value when a communication path is changed, and the affiliated user terminal of the relay station and/or the slave relay station are directly switched to a new communication path; and step 3, after the switching, a target base station newly establishes a priority message for the affiliated user terminal and/or the slave relay station. The method and the device, as well as the wireless communication network have the advantages that the switching time delay can be obviously reduced, and the complexity existing in the prior art that when the relay station (RS) is switched, the scanning, the environment monitoring, the ranging and other switching programs are carried out to the relay station (RS) and all the user terminals (UT) attached to the relay station (RS) is reduced.
Description
Technical field
The present invention relates to have mobile multi-hop relaying (Mobile Multi-hop Relay, MMR) cordless communication network, relate in particular to a kind of relay station (Relay Station, RS) and be attached to all user terminals (User Terminal, UT) relay station RS fast switch over method, device and the network that uses priority message to carry out of this relay station RS.
Background technology
In follow-on broadband wireless communication network, solve base station (Base Station, BS) in the scope such as buildings such as subway station, the inferior indoor overlay model in tunnel or ground, and problems such as the user's of application model such as some the interim application models and the vehicles that move or cell edge covering and throughput will be faced with formidable challenges.
At present, in IEEE 802.16j, IMT-Advanced, WINNER, all propose to adopt the mode of relay station RS to solve problems such as the covering of user in the scene that above-mentioned existence covers defective and throughput.Compare with in having the zone that covers defective, increasing base station BS, reduced the complexity of system start-up, simultaneously by making the complexity that can further reduce whole system that minimizes of relay station RS complexity.
In addition, when in cordless communication network, adding relay station RS, can be by the capacity that is used to increase whole network again of physics frequency spectrum.
In junction network, relay station RS generally is connected to base station BS or other relay station RS by repeated link.Relay station RS provides fixing wireless access links to user terminal UT equipment.And, be provided at the performance of switching between the contiguous access station.
When relay station RS because of existing network in interpolation/deletion relay station RS, on the existing communication path, add/remove relay station RS, new relay station RS login/when logining again by scanning, ambience listening and Ranging, can there be the relay station RS switching following two kinds of supposition under in relay station RS and all user terminal UT that are attached to this relay station RS:
(1) target access station and current service access station have identical leading, that is: transparent relay pattern.
(2) the target access station is leading different with the current service access station, that is: nontransparent repeater mode.
In order to connect, relay station RS can load or exchange messages at whole dependent repeater station RS and be attached to trigger on whole user terminal UT of this RS and switch by increasing signaling.
Simultaneously, relay station RS whole UT of being necessary for whole dependent repeater station RS and being attached to this relay station RS finish such as some changeover programs such as scanning, ambience listening and Ranging.When whole dependent repeater station RS and whole user terminal UT of being attached to this relay station RS use different switching message respectively, at whole dependent repeater station RS and be attached on whole user terminal UT of this relay station RS and carry out to need very long time delay when relay station RS switches.
Summary of the invention
The object of the present invention is to provide a kind of relay station fast switch over method, device and cordless communication network, be used to the user terminal that guarantees relay station and be attached to this relay station, the quick switching of dependent repeater station, guarantee the channel quality that switches fast simultaneously.
To achieve these goals, the invention provides a kind of relay station fast switch over method, be used to have the cordless communication network that relay station and this relay station have dependent user terminal and/or dependent repeater station, this method comprises:
Step 1, described relay station is determined priority message according to the channel quality information of described dependent user terminal and/or dependent repeater station;
Step 2, when communication path changed, described priority message was in the described relay station in the preset threshold scope, and the dependent user terminal of described relay station and/or dependent repeater station are directly switch to new communication path;
Step 3, after the switching, target BS is that described dependent user terminal and/or dependent repeater station rebulid priority message.
Described step 2 further comprises:
Step 201, described relay station base station under it is current sends the handoff request message that comprises priority message;
Step 202, the described relay station of described current affiliated base station in priority message is in the preset threshold scope sends the switching response message that comprises priority message;
Step 203, described relay station send priority message and switch indicating information arrives described current affiliated base station;
Step 204, the Ranging request message that described relay station transmission comprises priority message and switches identification message is finished the access again of target BS network to target BS;
Step 205, described target BS are described relay station, and the described dependent user terminal of described relay station and/or dependent repeater station distribution network sign.
Priority message sum and threshold range have been set in advance in the described current affiliated base station.
Described step 202 further comprises: described current affiliated base station judges whether described priority message is in the described threshold range, if be in, send the switching response message that comprises priority message to described relay station, otherwise carry out switching according to prior art.
Described step 3 further comprises:
Target BS is that described dependent user terminal and/or dependent repeater station are redistributed priority message by scanning, ambience listening and Ranging, and notifies described relay station with newly assigned priority message.
The priority message sum that sets in advance in the described current affiliated base station and the change of threshold range comprise the steps:
Priority message rank and switching threshold information is after changing reset in described current affiliated base station;
Described current affiliated base station sends scanning, ambience listening and the Ranging request that has priority message after changing;
Described relay station and whole user terminal send the response that has priority message after changing and arrive described current affiliated base station;
Described current under the base station use after changing priority message rank and switching threshold to upgrade described relay station and whole priority message of user terminals.
The priority message sum that sets in advance in the described current affiliated base station and the change of threshold range comprise the steps:
Reset after changing priority message rank and switching threshold information in the described current affiliated base station;
Described current under the base station send the Ranging request, notify all user terminal scanning and to ambience listening;
All user terminal feedback Ranging respond to described current affiliated base station;
Priority message and switching threshold priority message classification are after changing finished in described current affiliated base station.
The invention also discloses the quick device for switching of a kind of relay station, be used to have the cordless communication network that relay station and this relay station have dependent user terminal and/or dependent repeater station, described device is arranged in the described relay station, and this device comprises:
One parameter determination module is used for determining priority message according to the dependent user terminal of described relay station and/or the channel quality information of dependent repeater station;
All die change pieces when communication path changes, are in described relay station in the preset threshold scope with described priority message, and the dependent user terminal of described relay station and/or dependent repeater station are directly switch to new communication path;
One parameter is set up module, is used to dependent user terminal and/or dependent repeater station to rebulid priority message.
Described handover module further comprises:
A handover request sending module is used for sending the handoff request message that comprises priority message to its current affiliated base station;
One switches the response receiver module, is used to receive the switching response message that comprises priority message that described base station sends to described relay station;
One access module again is used to send priority message and switch indicating information to described base station, and sends the Ranging request message that comprises priority message and switch identification message to target BS, finishes the access again of target BS network;
One configuration module, receiving described target BS is the dependent user terminal and/or the dependent repeater station distribution network sign of described relay station and described relay station thereof, and carries out corresponding configuration.
Described parameter is set up module and is further comprised:
One parameter configuration module, being used to receive described target BS is the priority message that described dependent user terminal and/or dependent repeater station are redistributed by scanning, ambience listening and Ranging, and is configured.
The invention also discloses a kind of cordless communication network, comprise that relay station and this relay station have dependent user terminal and/or dependent repeater station, a relay station apparatus for fast switching is set in the described relay station, described device comprises again:
One parameter determination module is used for determining priority message according to the dependent user terminal of described relay station and/or the channel quality information of dependent repeater station;
All die change pieces when communication path changes, are in described relay station in the preset threshold scope with described priority message, and the dependent user terminal of described relay station and/or dependent repeater station are directly switch to new communication path;
One parameter is set up module, is used to dependent user terminal and/or dependent repeater station to rebulid priority message.
The present invention possesses following beneficial effect: can reduce whole dependent repeater station RS significantly and be attached to whole user terminal UT handover delays of relay station RS, overcome prior art effectively and worked as relay station RS because of interpolation/deletion relay station RS in the existing network, by scanning, ambience listening and Ranging etc. add/remove relay station RS on the existing communication path, new relay station RS login/when logining again, relay station RS and all user terminal UT that are attached to this relay station RS finish the shortcoming that causes big time delay when switching because of using switching message separately, and relay station RS and all user terminal UT of being attached to this relay station RS will scan when reducing the relay station RS that exists in the prior art and switching, complexity during changeover program such as ambience listening and Ranging.
Description of drawings
Fig. 1 is the structural representation of cordless communication network of the present invention;
Fig. 2 is the relay station of the present invention flow chart of the implementation method of switching fast;
Fig. 3 is the relay station of the present invention block diagram of the implementation method of switching fast;
Fig. 4 is the cut-away view of relay station apparatus for fast switching of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
When the present invention relates in a kind of mobile multi-hop junction network to use fixing, nomadic, fixed relay station RS, because of interpolation/deletion RS in the existing network, on the existing communication path, add/remove RS, new RS login/when logining again by scanning, ambience listening and Ranging, relay station RS and be attached to the relay station RS that all user terminal UT of this relay station RS use priority message to carry out and switch fast.
The present invention proposes whole user terminal UT switching message separately that whole user terminal UT that base station BS uses priority message to dispose to move whole dependent repeater station RS and be attached to this relay station RS replace whole dependent repeater station RS and are attached to this relay station RS.Can when guaranteeing switching fast, guarantee the channel quality of switching fast.
The present invention proposes a kind of priority message of using and when guaranteeing communication path upper signal channel quality, finish relay station fast switching method, device and network.
This priority message involved in the present invention is and channel quality information (Channel QualityInformation, CQI) a relevant parameter.Relay station has numerous dependent user terminals, also may have dependent repeater station.The dependent user terminal UT of one relay station and the dependent repeater station of this relay station all possess channel quality information CQI.Having dependent repeater station with this relay station is example, and this priority message is promptly according to the CQI of its all attached user terminal UT and all dependent repeater station and be divided into different grades.For example, the rank of priority message can be divided into the n level, and wherein n is 1,2 ..., N.N is the priority number, and N is the priority number that sets in advance.Can set n is 1 o'clock, and the CQI of priority message representative is best, and n is when being N, and the CQI of priority message representative is the poorest.That is the situation that, can indicate the channel quality of each equipment environment of living in this priority message.Priority message can obtain by scanning, ambience listening and Ranging.Do not have dependent repeater station as relay station, then only determine priority message with the CQI of its dependent user terminal.
When occurring following situation in the network: interpolations/deletion relay station RS in the existing network, by scanning and ambience listening and Ranging adds/remove relay station RS on the existing communication path, new relay station RS logins/logins again relates to the problem of relay station RS and dependent user terminal UT thereof and/or dependent repeater station handover network.In the prior art, changeover programs such as relay station and attached UT thereof and/or dependent repeater station all need scan, ambience listening and Ranging, the complexity height of switching, in time, prolong.And scheme of the present invention, need not all to carry out the changeover programs such as scanning, ambience listening and Ranging of relay station and attached UT thereof, but priority message is judged, promptly, according to agreement in advance, when priority message is in a certain threshold interval, when just channel quality is in a specified level, whole user terminal UT and dependent repeater station RS attached on this relay station can be directly switch on the new communication path separately.Thereby, necessary time delay when having reduced to carry out such as changeover programs such as scanning, ambience listening and Ranging.
The quick switching comprises the steps: relay station based on priority message of the present invention
Preestablish the sum of priority message for cordless communication network;
Relay station RS determines priority message according to the channel instruction message CQI of attached user terminal and/or dependent repeater station;
When introducing relay station RS, according to this priority message and predetermined threshold range, directly finish the quick switching of relay station and dependent user terminal UT and/or dependent repeater station, do not scan, ambience listening and Ranging;
After finishing quick switching, base station BS is by scanning, ambience listening and Ranging, be the relay station RS behind the access network, dependent user terminal and/or the dependent repeater station of this relay station RS rebulid new priority message, and notify new priority message this relay station RS to be configured.
Based on above-mentioned step, the present invention further comprises:
In base station BS, set in advance the information of priority message, comprise priority message sum and the priority threshold value that can carry out direct switching;
Base station BS obtains all the relay station RS in its sub-district of living in, the precedence information of user terminal UT by scanning, ambience listening and Ranging;
When communication path changed, relay station RS was to just sending the handoff request that comprises priority message in serving base station;
This base station sends the switching response message that comprises priority message to relay station RS;
Relay station RS sends priority message and switch indicating information arrives just at serving base station BS;
Relay station RS have priority message by transmission and switch sign (Identifier, Ranging request message ID) is finished the access again to the target BS network;
Target BS BS is the relay station RS after switching, and the user terminal UT of relay station and/or the new network identity ID of dependent repeater station distribution.
The access procedure again of described relay station RS is with reference to process relevant among the IEEE 802.16j.
After the relay station RS re-accessing network, target BS is that the whole dependent repeater station RS of this relay station RS and/or the whole user terminal UT that are attached to this relay station RS redistribute priority message by scanning, ambience listening and Ranging, and new priority message is notified to relay station RS to be configured.
Wherein, new priority message and the threshold value method that still adopts classification.
Detail specifications technical scheme of the present invention sees also the structural representation of Fig. 1 for cordless communication network of the present invention by the following examples.
Illustrated this network 100 comprise one just at serving base station BS-s, target BS BS-t, relay station RS, be attached to two user terminal UT1, the UT2 of this relay station RS.It is example that present embodiment does not have dependent repeater station with relay station.The zone of scope 1,2 for just being covered among Fig. 1 in serving base station BS-s, target BS BS-t sub-district, the zone that scope 3 is covered for relay station RS, scope 4,5 is the working region of user terminal UT1, UT2.In the cordless communication network of reality, physical space can be covered by a plurality of sub-district, and can have a plurality of relay stations and a plurality of user terminal in the sub-district, in order to schematically illustrate, Fig. 1 has only provided physical space and has had two sub-districts, the situation of a relay station and two user terminals.
In base station BS-s, set in advance the priority message of its each relay station that covers and dependent user terminal thereof, comprise sum and threshold value.And base station BS-s obtains all the relay station RS in its sub-district of living in, the precedence information of user terminal UT by scanning, ambience listening and Ranging.
When the situation that relay station switches has taken place to carry out, fall into the pre-determined threshold range of carrying out quick switching as the priority message of relay station, then need not to carry out changeover program commonly used such as scanning, ambience listening and Ranging.Please based on the described network configuration of Fig. 1, consult Fig. 2 and Fig. 3 simultaneously, it is respectively the relay station of the present invention flow chart and the block diagram of the implementation method of switching fast.
Step 101: for initiating to switch, (Connection Identifier CID) goes up transmission and comprises the handoff request message PMS_UTHO-REQ of priority message to current serving BS BS-s relay station RS at basic connection identifier.
Because priority message has reflected the communication path quality in the Current Serving BTS sub-district institute coverage, so the handoff request that has priority message that relay station RS sends has been pointed out channel quality simultaneously.
Step 102: current serving BS BS-s sends the base station BS switching response message PMS_BSHO-RSP that comprises priority message and falls into the interior relay station RS of threshold range to described priority message.
This current serving base station BS-s judges whether the priority message that this handoff request message PMS_UTHO-REQ is comprised falls into priority switching threshold value, if then transmission is used to indicate the switching response message PMS_BSHO-RSP of direct switching.If not, handle according to prior art.
The content of this switching response message PMS_BSHO-RSP comprises: MAC Address, traffic stream identifier (Service Flow Identifier, SFID), connection identifiers CID, be also contained in simultaneously backbone go up relay station RS to the target BS BS-t priority message and switch identification message PMS_HO_ID.
Step 103: relay station RS transmission priority message and switch indicating information PMS_HO-IND are to current serving BS BS-s.
Step 104: relay station RS comprises the access again that the Ranging request message RNG-REQ that switches identification message PMS_HO_ID and priority message finishes network by transmission.
Again the process of Jie Ruing is with reference to the correlated process among the IEEE802.16j.
Step 105: target BS BS-t is that UT1 shown in the figure and UT2 distribute new CID, and sends the Ranging response message RNG-RSP of relay station RS.
This relay station is by creating the mode of mapping for the new and old CID of user terminal, the old CID of user terminal is updated to new CID.
Step 106: target BS BS-t is whole dependent repeater station of this relay station RS of access network by scanning, ambience listening and Ranging, reach the attached whole user terminal UT of this relay station RS and redistribute priority message, and new priority message is notified to relay station RS to be configured.
When relay station has a plurality of dependent repeater station, the communication path that has dependent repeater station RS still according to the above method, utilize the relevant priority message of channel quality identification CQI to carry out classification, and finish quick switching according to the switching threshold of priority message equally.
In the process of switching fast, the switching threshold of priority message will influence switch speed.This be because, corresponding to a large amount of relay station RSs and the user terminal UT of different switching thresholds in will corresponding different communication path.Therefore, rationally use switching threshold not only can improve switch speed, can also the interior service state of division of cells coverage.For example: when using the priority message classification of N=9 level, 1≤n≤3 can be set o'clock be the service hot spot zone in the sub-district, can suppose that all relay station RS and user terminal UT in the hot spot region do not carry out any handover operation, 4≤n≤8 o'clock, be the switching threshold setting area, all relay station RS in this zone and user terminal UT switch the hot spot region, these relay stations RS and user terminal UT will participate in the switching in the network directly, it during n=9 the major defect zone of service in the sub-district, comprise some zone in the office building, the shadow region that high-lager building covered, and cell edge etc., these zones are need be by introducing the zone that relay station RS solves covering.If the numerical value that the threshold value in service major defect zone is provided with in the sub-district is not simultaneously, need can be significant different by introducing the quantity that relay station RS solve the user terminal UT in the zone of covering, this also finally has influence on switch speed.Therefore, using the priority message classification that switching threshold rationally is set and come the segmentation service zone, is vital for switching.
In addition, can determine the branch number of stages of priority message according to the size of cell coverage area, when cell coverage area hour, can use the fewer priority message of branch number of stages to identify whole network, so that further improve switch speed; When cell coverage area is big, can use the more priority message of branch number of stages to identify whole network, so that the service status in the further refinement cell coverage area, when needs switch fast, can reduce relay station RS and user terminal UT number when switching as far as possible, improve switch speed.
Also of particular note, priority message is different with connection identifiers CID, relay station RS in a plurality of communication paths may have identical priority message classification with user terminal UT, but these relay stations RS can not have identical connection identifiers CID with user terminal UT.That is to say that priority message has only reflected channel quality, is a relay station RS in the communication path and the branch set identifier of user terminal UT.
After having introduced priority message in the cordless communication network that has relay station RS, in fact just identified the service quality in whole cell coverage areas, promptly, having identified has the zone that covers defective in the sub-district, as: some zone in the office building, the shadow region that high-lager building covered etc.
Therefore,, can fully understand covering situation in the sub-district by introducing priority message, and the covering defect area that can point out according to priority message, on purpose place relay station RS and improve service quality, reduced cost simultaneously.
In addition, being used for the rank of the quick priority message of switching and the setting of switching threshold can change, and variation comprises following two kinds.
The step of method 1 is as follows:
Reset after changing priority message rank and switching threshold information in the base station BS;
Base station BS sends scanning, ambience listening and the Ranging request that has new priority message;
Relay station RS and whole user terminal UT send the response that has new priority message and arrive base station BS;
Base station BS uses new priority message rank and switching threshold to upgrade the priority message of relay station RS and whole user terminal UT.
The step of method 2 is as follows:
Reset after changing priority message rank and switching threshold information in the base station BS;
Base station BS sends the Ranging request, notifies all user terminal UT scanning and to ambience listening;
All user terminal UT feedback Ranging respond to base station BS;
Base station BS is finished priority message and switching threshold priority message classification after changing.
When using new priority message rank and switching threshold, when relay station RS because of existing network in interpolation/deletion relay station RS, on the existing communication path, add/remove relay station RS, new relay station RS login/when logining again by scanning, ambience listening and Ranging, relay station RS and the quick switch step of all user terminal UT that is attached to this relay station RS still adopt above-mentioned relay station RS fast switch over method.
The introducing of priority message can make the introducing of relay station RS become more purposive, may introduce relay station RS at coverage specially with defective, simultaneously, can serve quality condition in the sub-district by the priority message acquisition, control the number of relay station RS in the sub-district indirectly, reduce the complexity and the cost of system.
Use priority message of the present invention realizes that quick switching of relay station RS is applicable to fixing, nomadic and mobile-relay station RS.
The invention also discloses a kind of switching device shifter that utilizes above-mentioned changing method to switch.Describedly utilize priority message to carry out the quick device for switching 40 of relay station to be arranged in the relay station, comprise following three modules: parameter determination module 401, handover module 402, parameter are set up module 403.
This parameter determination module 401 is used for determining priority message according to the dependent user terminal of described relay station and/or the channel quality information of dependent repeater station;
This handover module 402 is used for when communication path changes, and described priority message is in described relay station in the preset threshold scope, and the dependent user terminal of described relay station and/or dependent repeater station are directly switch to new communication path;
This parameter is set up module 403 and is used to dependent user terminal and/or dependent repeater station to rebulid priority message.
This handover module 402 further comprises:
A handover request sending module 4021 is used for sending the handoff request message that comprises priority message to its current affiliated base station;
One switches response receiver module 4022, is used to receive the switching response message that comprises priority message that described base station sends to described relay station;
One access module 4023 again is used to send priority message and switch indicating information to described base station, and sends the Ranging request message that comprises priority message and switch identification message to target BS, finishes the access again of target BS network;
One configuration module 4024, receiving described target BS is the dependent user terminal and/or the dependent repeater station distribution network sign of described relay station and described relay station thereof, and carries out corresponding configuration.
Described parameter is set up module 403 and is further comprised:
One parameter configuration module 4031, being used to receive described target BS is the priority message that described dependent user terminal and/or dependent repeater station are redistributed by scanning, ambience listening and Ranging, and is configured.
The concrete operational mode and the above-mentioned changing method of each module of said apparatus are consistent, and do not give unnecessary details.
Adopt the method for the invention and device, compared with prior art, by simple introducing and the closely-related priority message of channel information quality CQI, realized working as relay station RS because of interpolation/deletion relay station RS in the existing network, by scanning, ambience listening and Ranging add/remove relay station RS on the existing communication path, new relay station RS login/when logining again, relay station RS and all user terminal UT that are attached to this relay station RS use the quick switching of the relay station RS that priority message carry out, guaranteed the channel quality of the communication path after the quick switching simultaneously, all user terminal UT that reduced relay station RS in original switching and be attached to this relay station RS will scan, time delay during changeover program such as ambience listening and Ranging and complexity.
Though the present invention discloses with aforesaid preferred embodiment, be not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention, the modification of being done all is included in the application's the scope.
Claims (11)
1, a kind of relay station fast switch over method is used to have the cordless communication network that relay station and this relay station have dependent user terminal and/or dependent repeater station, it is characterized in that this method comprises:
Step 1, described relay station is determined priority message according to the channel quality information of described dependent user terminal and/or dependent repeater station;
Step 2, when communication path changed, described priority message was in the described relay station in the preset threshold scope, and the dependent user terminal of described relay station and/or dependent repeater station are directly switch to new communication path;
Step 3, after the switching, target BS is that described dependent user terminal and/or dependent repeater station rebulid priority message.
2, the method for claim 1 is characterized in that, described step 2 further comprises:
Step 201, described relay station base station under it is current sends the handoff request message that comprises priority message;
Step 202, the described relay station of described current affiliated base station in priority message is in the preset threshold scope sends the switching response message that comprises priority message;
Step 203, described relay station send priority message and switch indicating information arrives described current affiliated base station;
Step 204, the Ranging request message that described relay station transmission comprises priority message and switches identification message is finished the access again of target BS network to target BS;
Step 205, described target BS are described relay station, and the described dependent user terminal of described relay station and/or dependent repeater station distribution network sign.
3, method as claimed in claim 2 is characterized in that, further comprises, has set in advance priority message sum and threshold range in the described current affiliated base station.
4, method as claimed in claim 3, it is characterized in that, described step 202 further comprises: described current affiliated base station judges whether described priority message is in the described threshold range, if be in, send the switching response message that comprises priority message to described relay station, otherwise carry out switching according to prior art.
5, the method for claim 1 is characterized in that, described step 3 further comprises:
Described target BS is that described dependent user terminal and/or dependent repeater station are redistributed priority message by scanning, ambience listening and Ranging, and notifies described relay station with newly assigned priority message.
6, method as claimed in claim 3 is characterized in that, the priority message sum that sets in advance in the described current affiliated base station and the change of threshold range comprise the steps:
Priority message rank and switching threshold information is after changing reset in described current affiliated base station;
Described current affiliated base station sends scanning, ambience listening and the Ranging request that has priority message after changing;
Described relay station and whole user terminal send the response that has priority message after changing and arrive described current affiliated base station;
Described current under the base station use after changing priority message rank and switching threshold to upgrade described relay station and whole priority message of user terminals.
7, method as claimed in claim 3 is characterized in that, the priority message sum that sets in advance in the described current affiliated base station and the change of threshold range comprise the steps:
Reset after changing priority message rank and switching threshold information in the described current affiliated base station;
Described current under the base station send the Ranging request, notify all user terminal scanning and to ambience listening;
All user terminal feedback Ranging respond to described current affiliated base station;
Priority message and switching threshold priority message classification are after changing finished in described current affiliated base station.
8, the quick device for switching of a kind of relay station is used to have the cordless communication network that relay station and this relay station have dependent user terminal and/or dependent repeater station, and described device is arranged in the described relay station, it is characterized in that, this device comprises:
One parameter determination module is used for determining priority message according to the dependent user terminal of described relay station and/or the channel quality information of dependent repeater station;
All die change pieces when communication path changes, are in described relay station in the preset threshold scope with described priority message, and the dependent user terminal of described relay station and/or dependent repeater station are directly switch to new communication path;
One parameter is set up module, is used to dependent user terminal and/or dependent repeater station to rebulid priority message.
9, device as claimed in claim 8 is characterized in that, described handover module further comprises:
A handover request sending module is used for sending the handoff request message that comprises priority message to its current affiliated base station;
One switches the response receiver module, is used to receive the switching response message that comprises priority message that described base station sends to described relay station;
One access module again is used to send priority message and switch indicating information to described base station, and sends the Ranging request message that comprises priority message and switch identification message to target BS, finishes the access again of target BS network;
One configuration module, receiving described target BS is the dependent user terminal and/or the dependent repeater station distribution network sign of described relay station and described relay station thereof, and carries out corresponding configuration.
10, device as claimed in claim 9 is characterized in that, described parameter is set up module and further comprised:
One parameter configuration module, to be used to receive described target BS be the priority message redistributed of described dependent user terminal and/or dependent repeater station by scanning, ambience listening and Ranging and be configured.
11, a kind of cordless communication network that utilizes any described method among the claim 1-7, comprise that relay station and this relay station have dependent user terminal and/or dependent repeater station, one relay station apparatus for fast switching is set in the described relay station, it is characterized in that, described device comprises again:
One parameter determination module is used for determining priority message according to the dependent user terminal of described relay station and/or the channel quality information of dependent repeater station;
All die change pieces when communication path changes, are in described relay station in the preset threshold scope with described priority message, and the dependent user terminal of described relay station and/or dependent repeater station are directly switch to new communication path;
One parameter is set up module, is used to dependent user terminal and/or dependent repeater station to rebulid priority message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101177831A CN101330308B (en) | 2007-06-22 | 2007-06-22 | Method for rapidly switching relay station, apparatus and wireless communication network |
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| CN2007101177831A CN101330308B (en) | 2007-06-22 | 2007-06-22 | Method for rapidly switching relay station, apparatus and wireless communication network |
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| CN101330308A true CN101330308A (en) | 2008-12-24 |
| CN101330308B CN101330308B (en) | 2012-05-16 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137460A (en) * | 2010-01-21 | 2011-07-27 | 中兴通讯股份有限公司 | Cell selecting and switching method and system in relay network |
| CN102273171A (en) * | 2009-03-19 | 2011-12-07 | 上海贝尔股份有限公司 | Method, device and computer program for interacting shared information between communication units |
| CN109347902A (en) * | 2018-08-27 | 2019-02-15 | 西北大学 | The data collaborative transmission method of priority and fairness is taken into account in edge calculations network |
| WO2019114670A1 (en) * | 2017-12-12 | 2019-06-20 | 华为技术有限公司 | Access method and device for relay system |
| CN116546577A (en) * | 2023-07-07 | 2023-08-04 | 中赣通信(集团)有限公司 | Multi-base-station intelligent scheduling method and system for communication switching |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6735417B2 (en) * | 2002-08-15 | 2004-05-11 | Motorola, Inc. | Method and apparatus for relaying information in an AD-HOC network |
| JP4881564B2 (en) * | 2005-02-04 | 2012-02-22 | 株式会社日立製作所 | Data transfer device, multicast system, and program |
| CN101547485B (en) * | 2008-03-26 | 2011-09-21 | 中兴通讯股份有限公司 | Relay station and method for switching relay station between different base stations |
-
2007
- 2007-06-22 CN CN2007101177831A patent/CN101330308B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273171A (en) * | 2009-03-19 | 2011-12-07 | 上海贝尔股份有限公司 | Method, device and computer program for interacting shared information between communication units |
| CN102137460A (en) * | 2010-01-21 | 2011-07-27 | 中兴通讯股份有限公司 | Cell selecting and switching method and system in relay network |
| WO2019114670A1 (en) * | 2017-12-12 | 2019-06-20 | 华为技术有限公司 | Access method and device for relay system |
| CN109922512A (en) * | 2017-12-12 | 2019-06-21 | 华为技术有限公司 | A kind of relay system cut-in method and device |
| CN109347902A (en) * | 2018-08-27 | 2019-02-15 | 西北大学 | The data collaborative transmission method of priority and fairness is taken into account in edge calculations network |
| CN116546577A (en) * | 2023-07-07 | 2023-08-04 | 中赣通信(集团)有限公司 | Multi-base-station intelligent scheduling method and system for communication switching |
| CN116546577B (en) * | 2023-07-07 | 2023-09-26 | 中赣通信(集团)有限公司 | Multi-base-station intelligent scheduling method and system for communication switching |
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|---|---|
| CN101330308B (en) | 2012-05-16 |
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