CN1943169A - Method for allocating radio resources for a wlan - Google Patents
Method for allocating radio resources for a wlan Download PDFInfo
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- CN1943169A CN1943169A CNA2005800106912A CN200580010691A CN1943169A CN 1943169 A CN1943169 A CN 1943169A CN A2005800106912 A CNA2005800106912 A CN A2005800106912A CN 200580010691 A CN200580010691 A CN 200580010691A CN 1943169 A CN1943169 A CN 1943169A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/15—Flow control; Congestion control in relation to multipoint traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/78—Architectures of resource allocation
- H04L47/788—Autonomous allocation of resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/824—Applicable to portable or mobile terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/83—Admission control; Resource allocation based on usage prediction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention relates to a method for allocating radio resources to radio stations (AP, N1, N2, MS1, MS2) of a radio communications system. In the radio communications system, message transmissions ensue between radio stations (AP, MS2) by routing these messages over other radio stations (N1, N2). Different classes of radio stations (AP, N1, N2, MS1, MS2) exist with regard to their function during the transmission of messages. A radio facility (BS) receives, from radio stations (AP, N1, N2, MS1, MS2), request messages (RR-MS, RR-N-N, RR-N-MS, RR-AP-MS, RR-AP-N) for requesting an allocation of radio resources for sending or routing messages directly or via one or more other radio stations (N2, AP). According to the invention, the radio facility (BS) allocates radio resources to radio stations (AP, N1, N2, MS1, MS2) that have requested the allocation of radio resources. This ensues while taking the classes of these radio stations (AP, N1, N2, MS1, MS2) into consideration. Lastly, the radio facility (ES) communicates the allocations by means of at least one message. The invention also relates to a radio facility (BS) for carrying out said method.
Description
The present invention relates to a kind of method that is used for to the radio station radio resource allocated of radio communications system, message is by transmitting these message via other radio stations and being transmitted between radio station in this radio communications system.In addition, the present invention relates to be used to carry out the wireless device of this method.
In radio communications system, between the radio station that sends and receive, transmit via radio interface by means of electromagnetic wave such as the message of speech message, message, video messaging, SMS (short message service), MMS (multimedia messaging service, MMS) or other data with image information.In the case, according to the concrete structure of radio communications system, radio station can be dissimilar user side radio station or the network-based radio station such as radio access point, transponder or base station.In mobile radio communicaltions system, at least a portion of user side radio station is a mobile radio station.Electromagnetic emission is carried out with carrier frequency, and this carrier frequency is arranged in the set frequency band for corresponding system.
Mobile radio communicaltions system often be constructed to have network infrastructure for example according to the cellular system of standard GSM (global system for mobile communications) or UMTS (Universal Mobile Telecommunications System), wherein said network infrastructure for example by the base station, be used to monitor and control the equipment of base station and other network equipment is formed.
Except (super local) honeycomb fashion classification radio net of these extensive tissues, also exist to have spatially to be subjected to the obviously WLAN (wireless local area network) (WLAN, Wireless Local Area Networks) of the radio coverage of bigger restriction usually.It is little that the sub-district that is covered by the radio access point (AP:Access Point) of WLAN is compared with common mobile radio sub-district with the diameter within the hundreds of rice.The example that is used for the various criterion of WLAN is HiperLAN, DECT, IEEE 802.11, bluetooth and WATM.
Usually the frequency range about the 2.4GHz that will not license is used for WLAN.Data transmission rate is within 11Mbit/s.WLAN in the future can work and reach the data transfer rate above 50Mbit/s in the 5GHz scope.Thus, obviously higher than that data transfer rate that is provided by third generation mobile radio data transfer rate can use for the user of WLAN.Therefore for the transmission of big data quantity, particularly insert in conjunction with the internet, it is favourable inserting WLAN for the connection of high bit rate.
Can realize to other communication systems, therefore for example to the connection of internet via WLAN radio access point.For this reason, the user side radio station of WLAN is directly communicated by letter with the radio access point, perhaps away from the situation of radio station under communicate by letter with the radio access point via other radio stations, described other radio stations are transmitted message between user side radio station and radio access point.Operational radio resource in short supply is usually shared by the radio station of WLAN, perhaps distributes between the radio station of WLAN.If for example so distribute, so that radio resource can use for the radio station of transmitting first message to a great extent, and radio resource can use for the radio station of transmitting second message hardly, the overload of congested, second radio station transmitted in the time of then may causing transmission of messages and finally cause information drop-out.
The present invention based on task be, a kind of effective ways that are used for radio resources allocation is given the radio station of radio communications system are described, the transmission of messages in this radio communications system between the radio station realizes by transmitting message via other radio stations.In addition, a kind of wireless device that is used to carry out the radio resource allocated of this method will be introduced.
The wireless device of the method for the feature of this task by having claim 1 and the feature by having claim 10 solves.
Favourable expansion scheme and improvement project are the themes of dependent claims.
The inventive method is used for radio resources allocation is given the radio station of radio communications system.In radio communications system, the transmission of messages between the radio station realizes by transmitting message via other radio stations.According to the function of radio station when the transmission of messages, there is different classes of radio station.Wireless device receives the request message be used to ask to distribute the radio resource that is used for sending or transmit message from radio station.According to the present invention, wireless device is given the radio station of having asked radio resources allocation with radio resources allocation, carries out this distribution or rather under the situation of the classification of considering these radio stations.In addition, described wireless device is by the described distribution of at least one message informing.
Can only be between the radio station of radio communications system by radio, also promptly do not comprising via the situation of the infrastructure of circuit message transfer under message transfer.The radio station of radio communications system for example can be the radio station of for example user side radio station, relay station and the radio access point form of WLAN.Wireless device for example can be the base station of cellular radio communication system.Each radio station that passes through radio participation transmission of messages of radio communications system belongs to one or more classification.In the case, classification relates to the function of radio station when transmission of messages.Gou Zao radio station may belong to different classifications in the same manner.If a radio station belongs to a plurality of classifications, then wireless device can identify from the request of this radio station to radio resource: which classification to carry out this request at.The affiliated relation of radio station and one or more classification can change along with the time.
The radio resource that wireless device is distributed to radio station for example can be one or more radio frequency (for example OFDM frequency band) and/or time slot and/or code and/or direction in space.The distribution of the combination of time slot and radio frequency is particularly advantageous.Under the situation of the classification of considering radio station by the wireless device radio resource allocated.This for example can be by carrying out priority arrangement and realize according to the order assignment radio resource of priority arrangement different classes of.Therefore, for example possible is, have only when do not exist the higher priority classification be not assigned with the radio station of the radio resource of being asked the time, just give other radio station of low priority class with radio resources allocation.Consideration to priority arrangement can be confined to some radio resource, so for example can realize different priority arrangement at different radio resources; And also can be confined to some radio station, so for example can be only consider the priority arrangement determined at the radio station of a certain geographic area.After the distribution of success, wireless device is notified described distribution.The transmission that has about the message of the information of this distribution can send to all radio stations by wireless device, perhaps only sends to those radio stations that are assigned to radio resource and/or send to next to other radio stations to transmit radio station about the information of this distribution.
In expansion scheme of the present invention, the radio station in the radio station of first category will be given other radio stations that are used to transmit message from the forwards that radio station receives.In the case, for example can relate to transponder or relay station, it is not incorporated into new message in the radio communications system, is incorporated into message in the radio communications system but transmit by other radio stations.The radio station of first category especially can be a network-based radio station.
In expansion scheme of the present invention, the radio station in the radio station of second classification will be given such radio station from the forwards that radio station receives, and corresponding message sends to this radio station.For example can relate to transponder or relay station in the case, it is not incorporated into new message in the radio communications system, is incorporated into message in the radio communications system but transmit by other radio stations.The radio station of second classification especially can be a network-based radio station.
A radio station can belong to the radio station of first and second classifications, so its classification institute attribute with regard to a certain message depends on: be ready for sending to which radio station by its reception and message that will transmit.
In expansion scheme of the present invention, the radio station in the radio station of the 3rd classification will be given the radio station that is used to transmit message from the forwards that another communication system receives.The radio station of the 3rd classification for example can be the radio access point that is connected the WLAN on the internet.Described another communication system can be constructed to radio communications system.The radio station of the 3rd classification especially can be made up of network-based radio station.
In expansion scheme of the present invention, the radio station in the radio station of the 4th classification will be given such radio station from the forwards that another communication system receives, and corresponding message sends to this radio station.The radio station of the 4th classification for example can be the radio access point that is connected the WLAN on the internet.Described another communication system can be constructed to radio communications system.The radio station of the 4th classification especially can be made up of network-based radio station.
A radio station can belong to the radio station of third and fourth classification, so its classification institute attribute with regard to a certain message depends on: be ready for sending to which radio station from another communication system message that receive and that will transmit by it.
In expansion scheme of the present invention, the radio station in the radio station of the 5th classification sends the message of self to radio station.The message of self is such message, and another radio station that this message is not used to transmit receives, but is resend in the radio communications system by this radio station.The radio station of the 5th classification especially can be the user side radio station.
If when radio resource allocated, so consider classification, make according to by first category at first, the priority arrangement of the radio station of the order of the 3rd classification distributes time slot at radio frequency then, then is favourable.In this case, first with the radio station of the 3rd classification in whole or at least a portion radio station use identical radio frequency.Preferably, the radio station of the first category of touching upon when radio resource allocated is also promptly transmitted those radio stations of the message that has existed in radio communications system.On the contrary, the radio station of the 3rd classification of low priority sends a message in the radio communications system again.Therefore, with respect to the message that has existed in radio communications system, the message that is sent to again in the radio communications system is placed at last.
In a kind of favourable improvement project of the present invention, when radio resource allocated, so consider classification, make according to by the second and the 4th classification at first, the priority arrangement of the radio station of the order of the 5th class row distributes time slot at one or more radio frequency then.In this case, higher priority due to the second and the 4th classification, also be two classifications that its radio station is given forwards the recipient of this message.Also can between the priority of these two classifications, distinguish.Again send a message in the radio communications system is again low priority.The second, the combination of the above-mentioned priority arrangement of the priority arrangement described here of the 4th and the 5th classification and the first and the 3rd classification also is possible.The second, the 4th with the radio station of the 5th classification in one or more radio frequency of being assigned with advantageously with the different radio frequency of that radio frequency that in the radio station of the first and the 3rd classification, is assigned with.
In expansion scheme of the present invention, the radio station of radio communications system communicates with one another using under the situation of first radio interface, and under the situation of using second radio interface with radio communication.First radio interface for example can be the radio interface of WLAN, and second radio interface can be the cellular radio electrical interface.
Be used for having to the wireless device of the present invention of the radio station of radio communications system radio resources allocation: be used to receive and handle the device of the request message of radio station, described request message is used to ask to distribute the radio resource that is used for sending or transmitting message; And be used under the situation of the classification of considering described radio station to the device of having asked the radio station radio resource allocated of radio resources allocation; And be used to create and send at least one and have device about the message of the information of radio resources allocation.
Wireless device of the present invention is particularly useful for carrying out the inventive method, and wherein this also is applicable to expansion scheme and improvement project.For this reason, described wireless device can have other suitable devices.Can realize wireless device of the present invention by a plurality of equipment that are connected to each other with related device.
By embodiment the present invention is described in more detail below.This:
Fig. 1 illustrates radio communications system,
The schematically illustrated content of Fig. 2 according to the message that the inventive method sent,
The structure of the schematically illustrated base station of the present invention of Fig. 3.
Figure 1 illustrates WLAN, this WLAN is made up of radio access point AP, two mobile radio station MS1 and MS2 and two relay station N1 and N2.Radio access point AP has to the connection of internet INTERNET.Relay station N1 and N2 are the network-based radio station of fixed-site, and this network-based radio station is used for transmitting message between mobile radio station MS1 and MS2 and radio access point AP.Additionally or alternatively, can either partially or fully carry out the forwarding of message by user side radio station fixed-site or that move.WLAN can comprise (unshowned in order to come into plain view property in Fig. 1) other radio access point, user side radio station and relay station.
In the transmission of messages that realizes under the situation of utilizing the WLAN radio interface between radio station AP, MS1, MS2, N1 and the N2.If the user side radio station, for example mobile radio station MS1 is positioned at the radio coverage of radio access point AP in Fig. 1, then this user side radio station can directly be communicated by letter with radio access point AP.Away from the situation of user side radio station under, for example in Fig. 1 under the situation of mobile radio station MS2, realize transmission of messages between radio access point AP and the user side radio station by transmit message by relay station.Therefore, message can be sent to mobile radio station MS2 from radio access point AP, and AP is sent to relay station N1 from the radio access point, and this relay station N1 gives relay station N2 with forwards, and this relay station N2 gives mobile radio station MS2 with forwards.
First radio frequency can use for WLAN, this first radio frequency be used between relay station N1 and the N2 and relay station N1 and N2 and radio access point AP between communicate by letter.Have three other radio frequencies available in addition, these three other radio frequencies be used between relay station N1 or N2 and mobile radio station MS1 or the MS2 and radio access point AP and mobile radio station MS1 and MS2 between communicate by letter.Therefore, if the user side radio station participates in communication, then always be to use these three other radio frequencies.
Radio station AP, MS1, MS2, N1 and the N2 of WLAN be positioned at cellular radio communication system (for example according to standard UMTS system) base station BS pass through the radio plot shown in the cloud form figure.Other parts of cellular radio communication system are not illustrated in order to come into plain view property.Under the situation of using the cellular radio electrical interface, radio access point AP, relay station N1 are with N2, mobile radio station MS1 can communicate by letter with base station BS with MS2 in case of necessity.Because the radio frequency lower than the radio frequency that is used for the communication within the WLAN is used in the communication of using under the cellular radio interface case, so radio access point AP, relay station N1 and N2, also have mobile radio station MS1 can directly communicate by letter in case of necessity, and need not to transmit message with base station BS with MS2.If the outfit of user side radio station does not allow to communicate by letter with base station BS under the situation of using the cellular radio electrical interface, communicating by letter between then corresponding user side radio station and the base station BS realizes that via relay station wherein this user side radio station is currently located near this relay station.If can not communicate under the situation of using the cellular radio electrical interface for mobile radio station MS2 for example, then this mobile radio station MS2 can communicate by letter with base station BS via relay station N2.
If mobile radio station MS1 or MS2 plan to send message, then this mobile radio station MS1 or MS2 ask radio resource for this reason.Mobile radio station MS1 or MS2 plan the message that sends and for example can be made up of the request to the data of internet INTERNET.Mobile radio station MS1 or MS2 send the request message RR-MS (RR: resource request) that is used for radio resource allocated.This request message RR-MS can directly be sent to base station BS, perhaps be sent to relay station N2 under the situation of mobile radio station MS2 or be sent to radio access point AP under the situation of mobile radio station MS1, this radio access point AP is transmitted to base station BS with this request message then.For request message RR-MS being sent to relay station or radio access point, the user side radio station uses one of three radio frequencies, and these three radio frequencies can be used to the communication of user side radio station.
If relay station N2 receives the message that will be transmitted to radio access point AP via relay station N1 from mobile radio station MS2, then this relay station N2 is to the base station BS RR-N-N that sends a request message, ask base station BS to give relay station N2 radio resource allocated thus, so that send message to another relay station.In the case, request message RR-N-N can comprise the identification information of relay station N1.But base station BS also can only be learnt from request message RR-N-N: relay station N2 need be used for sending to another relay station the radio resource of message.
If relay station N2 receives the message that will be transmitted to mobile radio station MS2 from relay station N1, then this relay station N2 is to the base station BS RR-N-MS that sends a request message.Base station BS identifies from this request message RR-N-MS: relay station N2 need be used for transmitting to the user side radio station radio resource of message.This request message RR-N-MS can comprise the identification information of mobile radio station MS2.
Correspondingly, message should be transmitted to relay station N2 or be transmitted to from relay station N2 under the situation of radio access point AP from radio access point AP at relay station N1, this relay station N1 is also to the base station BS RR-N-N that sends a request message.If the request message RR-N-N that is sent by relay station N1 and N2 does not comprise the identification information of those radio stations that message should be forwarded to, then can not learn from these request messages: message is should be forwarded to relay station N1 or N2 or should be forwarded to radio access point AP.Its reason is, be used for identical radio frequency between relay station N1 and the N2 and relay station N1 and radio access point AP between communication.
If in radio access point AP, there is the message of giving mobile radio station MS1 that receives from internet INTERNET, this radio access point RR-AP-MS that sends a request message then.Base station BS is inferred from this request message RR-AP-MS: message should directly send to the user side radio station by this radio access point AP, and need be used for the resource of this transmission.The identification information that in this request message RR-AP-MS, can comprise mobile radio station MS1.And if send to mobile radio station MS2 by radio access point AP from the message that internet INTERNET receives, then have following requests for content message RR-AP-N to the base station BS transmission in case of necessity under the situation of the identification information that provides relay station N1, promptly radio access point AP need be used for sending to relay station the resource of message.
Among described request message RR-MS, RR-N-N, RR-N-MS, RR-AP-MS, the RR-AP-N each can comprise the explanation about the scale of one or more message that will send respectively, so base station BS can be inferred from request message: the radio resource of which scope should be assigned to corresponding radio station.
Therefore there are request message RR-MS, RR-N-N, RR-N-MS, RR-AP-MS and RR-AP-N.Difference between the request message is by the function decision of radio station AP, MS1, MS2, N1 and the N2 of WLAN when the message transfer.That is to say that there is different classes of radio station in the function according to radio station AP, MS1, MS2, N1 and the N2 of WLAN when the message transfer.Request message RR-MS is from the user side radio station, and this user side radio station is not transmitted message, but sends new message.Request message RR-N-N is from relay station, and this relay station will be given other relay stations from other relay stations or from the user side radio station or from the forwards that the radio access point is received.Request message RR-N-MS is from relay station, and this relay station will be given the user side radio station that utilizes this message to be addressed from another relay station or from the forwards that the radio access point is received.Request message RR-AP-MS is from the radio access point, and this radio access point will directly be transmitted to this user side radio station from the message at the user side radio station that another communication system received.Request message RR-AP-N is from the radio access point, and this radio access point will be given relay station from the forwards that another communication system received, so that transmit this message.
According to the reception of request message, base station BS is given radio resources allocation with regular time intervals radio station AP, MS1, MS2, N1 and the N2 of WLAN.When which radio station was which radio resources allocation decision give, base station BS was considered the radio station of above-mentioned classification, and wherein base station BS receives corresponding request message from these radio stations.After decision distributed, base station BS sent message, and this base station BS utilizes this message that this distribution is notified to relevant radio station.
Fig. 2 illustrates this structure by the informational message RESSOURCE MESSAGE that base station BS sent.The PREAMBLE of first (header) of message RESSOURCE MESSAGE illustrates: the time interval begins with new radio resources allocation.Part notice radio station subsequently: which radio resource has been assigned to these radio stations.Base station BS sends message RESSOURCE MESSAGE to all relay stations that are assigned to radio resource and radio access point.For this reason, message RESSOURCE MESSAGE can send by broadcasting from base station BS.The user side radio station that is assigned to radio resource directly receives message RESSOURCEMESSAGE or receives message RESSOURCE MESSAGE by message RESSOURCE MESSAGE or about the forwarding of the information of the radio resource that is assigned to this user side radio station from relay station or radio access point from base station BS.
The first radio frequency F1 also promptly is used to all message within WLAN, that do not have the user side radio station to participate in and is sent or transmit by relay station N1 and N2 and radio access point AP use.Therefore, at the first radio frequency F1, base station BS is given radio station N1, N2 and AP with time slot allocation.The classification of radio station according to request message that is received or request radio resource is distributed.When distributing time slot at the first radio frequency F1, the relay station that has sent request message RR-N-N has limit priority.It after this relay station the access point that has sent request message RR-AP-N.Therefore, have only when radio resource is assigned to each relay station of the distribution of having asked radio resource with the required scale of relay station, just give the radio access point the time slot allocation of the first radio frequency F1.The reason of this processing mode is, other radio stations that will come from WLAN by the message that relay station is transmitted, and therefore should be apace, promptly under having, be not transferred to the radio station that is addressed owing to the situation that rests on the unnecessary delay that the relay station place causes for a long time yet.But the message that the radio access point is sent under the situation of using the resource of being distributed according to request message RR-AP-N arrives the WLAN again from this radio access point.Again be sent to message among the WLAN with respect to the quantity that preferentially will increase the current message that in WLAN, will transmit of the message among the WLAN Already in, and therefore when transmission of messages, cause long transmitting continuous time or congested and bottleneck.
Do not rely at the time slot allocation of the first radio frequency F1 and carry out time slot allocation at other three radio frequency F2, F2 and F4.Other radio frequency is used to the communication between user side radio station and relay station or the radio access point.At radio frequency F2, F3 and F4 distribution time slot the time, base station BS is also considered the priority of radio station.When resource allocation, should be directly with forwards give the relay station of user side radio station, those relay stations of also promptly having sent request message RR-N-MS have limit priority.Second priority is assigned to should be directly to be given forwards the radio access point of user side radio station, has also promptly sent those radio access points of request message RR-AP-MS.Also can belong to when resource allocation between the radio station of request message RR-N-MS and RR-AP-MS and not distinguish according to its priority, also be that the both takies limit priority.Lowest priority is assigned to the user side radio station that has sent request message RR-MS.Have only when time slot allocation is being given request message RR-N-MS institute from relay station and distribute to request message RR-AP-MS institute from the radio access point after when the time slot of free time is available in addition, the time slot of radio frequency F2, F3 and F4 just is assigned to these user side radio stations.
If at other three radio frequency F2, F2 and F4 distribution time slot the time, under the situation of use is only trooped the time slot allocation of one of radio frequency F2, F2 and F4 to each boundary condition, carry out described priority arrangement (Priorisierung), then be favourable, wherein said trooping is made up of relay station and the user side radio station that is assigned to this relay station.Can use for the communication of user side radio station if for example be divided into the frequency band of a plurality of OFDM frequency bands, then can between the difference of having asked radio resource is trooped, distribute the OFDM frequency band.As mentioned above, distribute the time slot of its frequency of trooping accordingly for the radio station of trooping.
The embodiment radio station like this of above-mentioned priority arrangement about radio station when the radio resource allocated is significant especially, and the signal of these radio stations may disturb with being out of favour.Therefore, for example can give mobile radio station MS2 and radio access point AP with the same frequency among the F4 with identical time slot allocation, because the signal of mobile radio station MS2 and radio access point AP does not disturb owing to the distance between mobile radio station MS2 and the radio access point AP at three radio frequency F2, F2.If distance between radio station AP, MS1, MS2, N1 and the N2 of WLAN or the network topology of WLAN are known for base station BS, then above-mentioned priority arrangement can be carried out at such radio station respectively in the base station, and the distribution of identical radio resource will cause transmission to be disturbed in these radio stations.In this case, carry out said method at limited geographic area.And if the distance between radio station AP, MS1, MS2, N1 and the N2 of WLAN is unknown for base station BS, then can carry out aforesaid priority arrangement at all radio station AP, MS1, MS2, N1 and the N2 of WLAN.
Under the situation of between the OFDM frequency band is being trooped, distributing, identical OFDM bandwidth assignment can be given each other fully trooping of interval.In one was trooped, time slot at first was assigned to relay station or radio access point, is assigned to the user side radio station subsequently.
The structure of the schematically illustrated base station BS of the present invention of Fig. 3.Antenna A is used for sending and receive message via the cellular radio electrical interface.The request message that is received via antenna A arrives among the device RECEIVE RR, in the processed and analysis of request message described in this device.In order in device DETERMINE ALLOCATION, to determine the distribution of radio resource, by device RECEIVERR deliver from request message, learn for information relevant according to the distribution of said method.After successfully decision distributed, information relevant for radio station was handed to device TRASNMIT RESSOURCE MESSAGE, and this device establishment is given the message of radio station and launched via antenna A.
Claims (10)
1. be used for radio resources allocation give radio communications system radio station (AP, N1, N2, MS1, method MS2), wherein
In described radio communications system, radio station (AP, MS2) transmission of messages between by via other radio stations (N1 N2) transmits message and realizes,
According to the function of radio station when the transmission of messages, exist different classes of radio station (AP, N1, N2, MS1, MS2),
Wireless device (BS) from radio station (AP, N1, N2, MS1, MS2) receive the request message be used to ask to distribute the radio resource that is used for sending or transmit message (RR-MS, RR-N-N, RR-N-MS, RR-AP-MS, RR-AP-N),
It is characterized in that,
Considering described radio station (AP, N1, N2, MS1 is under the situation of classification MS2), radio station (the AP that has asked radio resources allocation given radio resources allocation by described wireless device (BS), N1, N2, MS1, MS2), and by at least one message (RESSOURCE NESSAGE) notify described distribution.
2. in accordance with the method for claim 1, it is characterized in that,
Radio station in the radio station of first category (N1, N2) will from radio station (AP, MS2) forwards of Jie Shouing give other radio stations be used to transmit message (N2, N1).
3. according to claim 1 or 2 described methods, it is characterized in that,
Radio station in the radio station of second classification (N2) will be given such radio station (MS2) from the forwards that radio station (N1) receives, and wherein corresponding message sends to this radio station (MS2).
4. according to the described method of one of claim 1 to 3, it is characterized in that,
Radio station in the radio station of the 3rd classification (AP) will be given the radio station (N1) that is used to transmit message from the forwards that another communication system (INTERNET) receives.
5. according to the described method of one of claim 1 to 4, it is characterized in that,
Radio station in the radio station of the 4th classification (AP) will be given such radio station (MS1) from the forwards that another communication system (INTERNET) receives, and wherein corresponding message is to send to this radio station (MS1).
6. according to the described method of one of claim 1 to 5, it is characterized in that,
Radio station in the radio station of the 5th classification (MS1, MS2) self message is sent to radio station (N2, AP).
7. according to claim 2 and 4 described methods, it is characterized in that,
When radio resource allocated, so consider classification, make according to by first category at first, the priority arrangement of the radio station of the order of second classification (N1, N2, AP) distributes time slot at radio frequency (F1) then.
8. according to claim 3,5 and 6 described methods, it is characterized in that,
When radio resource allocated, so consider classification, make according to by at first second classification and the 4th classification, the radio station of the order of the 5th classification (N2, AP then, MS1, MS2) priority arrangement is come at one or more radio frequency (F2, F3, F4) distribution time slot.
9. according to the described method of one of claim 1 to 8, it is characterized in that,
The radio station of described radio communications system (AP, N1, N2, MS1 MS2) communicates with one another under the situation of using first radio interface, and communicates by letter with described wireless device (BS) under the situation of using second radio interface.
10. be used for radio resources allocation give radio communications system radio station (AP, N1, N2, MS1, wireless device MS2) (BS),
Wherein in described radio communications system radio station (AP, MS2) transmission of messages between by via other radio stations (N1 N2) transmits message and realizes, and
According to the function of radio station when the transmission of messages, exist different classes of radio station (AP, N1, N2, MS1, MS2),
This wireless device has:
Be used for receiving and handling (A, RECEIVERR) radio station (AP, N1, N2, MS1, request message (RR-MS, RR-N-N, RR-N-MS MS2), that be used to ask to distribute the radio resource that is used for sending or transmit message, RR-AP-MS, device RR-AP-N) is characterized in that
Described wireless device has in addition:
Be used for considering described radio station (AP, N1, N2, MS1 gives the radio station (AP that has asked radio resources allocation with radio resources allocation (CALCULATE ALLOCATION) under the situation of classification MS2), N1, N2, MS1, device MS2), (SEND RESSOURCE MESSAGE, A) at least one has the device of the message (RESSOURCE MESSAGE) about the information of radio resources allocation to be used for establishment and transmission.
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| Application Number | Priority Date | Filing Date | Title |
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| DE102004015897.5 | 2004-03-31 | ||
| DE102004015897A DE102004015897B3 (en) | 2004-03-31 | 2004-03-31 | Method for allocating radio resources for a WLAN |
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| CN1943169A true CN1943169A (en) | 2007-04-04 |
| CN100550802C CN100550802C (en) | 2009-10-14 |
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| CNB2005800106912A Expired - Fee Related CN100550802C (en) | 2004-03-31 | 2005-02-24 | Be used to the method and apparatus of WLAN radio resource allocated |
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| JP (1) | JP4382848B2 (en) |
| KR (1) | KR101090989B1 (en) |
| CN (1) | CN100550802C (en) |
| DE (1) | DE102004015897B3 (en) |
| MX (1) | MXPA06011076A (en) |
| UA (1) | UA88291C2 (en) |
| WO (1) | WO2005096552A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102461306A (en) * | 2009-06-12 | 2012-05-16 | 诺基亚公司 | Method and apparatus for facilitating relay node communications |
| WO2013127316A1 (en) * | 2012-02-27 | 2013-09-06 | 京信通信系统（中国）有限公司 | Gsm/gprs network and wi-fi network heterogeneity method and system |
| CN101883437B (en) * | 2009-05-05 | 2014-12-10 | 中兴通讯股份有限公司 | Random access method and base station |
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| JP4751451B2 (en) * | 2005-12-13 | 2011-08-17 | エルジー エレクトロニクス インコーポレイティド | Communication method using relay station in wireless communication system |
| EP1804430B1 (en) * | 2006-01-03 | 2013-05-15 | Samsung Electronics Co., Ltd. | Requesting and allocating upstream bandwidth in a multi-hop relay broadband wireless access communication system |
| JP4632368B2 (en) * | 2006-07-05 | 2011-02-16 | 株式会社Ｋｄｄｉ研究所 | Band request aggregation method, relay station, and program in relay station to which IEEE 802.16 is applied |
| WO2008044317A1 (en) * | 2006-10-13 | 2008-04-17 | Fujitsu Limited | Wireless base station, relay station and frequency band allocation method |
| JP5278523B2 (en) * | 2011-11-14 | 2013-09-04 | 富士通株式会社 | Relay station, bandwidth allocation method |
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| PT95300A (en) * | 1989-09-14 | 1992-03-31 | Pcn One Ltd | RADIO-MOVEL COMMUNICATIONS SYSTEM |
| US6788702B1 (en) * | 1999-10-15 | 2004-09-07 | Nokia Wireless Routers, Inc. | Protocol for neighborhood-established transmission scheduling |
| US6975613B1 (en) * | 1999-12-06 | 2005-12-13 | Telefonaktiebolaget L M Ericsson (Publ) | System and method for scheduling communication sessions in an ad-hoc network |
| US20030026208A1 (en) * | 2001-07-31 | 2003-02-06 | Dennis Bijwaard | Controlling levels of traffic in a telecommunications network with a relay node and a network node therefor |
| EP1398910A1 (en) * | 2002-09-13 | 2004-03-17 | Siemens Aktiengesellschaft | Position dependent routing of a connection between two mobile stations via one or more intermediate mobile stations |
| DE10350895B3 (en) * | 2003-10-31 | 2005-07-28 | Siemens Ag | Method and device for determining paths and allocating radio resources for the particular paths in a radio communication system |
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2004
- 2004-03-31 DE DE102004015897A patent/DE102004015897B3/en not_active Expired - Fee Related
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2005
- 2005-02-24 UA UAA200609689A patent/UA88291C2/en unknown
- 2005-02-24 WO PCT/EP2005/050794 patent/WO2005096552A1/en active Application Filing
- 2005-02-24 JP JP2007505532A patent/JP4382848B2/en not_active Expired - Fee Related
- 2005-02-24 MX MXPA06011076A patent/MXPA06011076A/en active IP Right Grant
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883437B (en) * | 2009-05-05 | 2014-12-10 | 中兴通讯股份有限公司 | Random access method and base station |
| CN102461306A (en) * | 2009-06-12 | 2012-05-16 | 诺基亚公司 | Method and apparatus for facilitating relay node communications |
| US8958357B2 (en) | 2009-06-12 | 2015-02-17 | Nokia Corporation | Method and apparatus for facilitating relay node communications |
| CN102461306B (en) * | 2009-06-12 | 2015-11-25 | 诺基亚公司 | Be convenient to the method and apparatus of via node communication |
| WO2013127316A1 (en) * | 2012-02-27 | 2013-09-06 | 京信通信系统（中国）有限公司 | Gsm/gprs network and wi-fi network heterogeneity method and system |
| CN103298077A (en) * | 2012-02-27 | 2013-09-11 | 京信通信系统（中国）有限公司 | Heterogeneous method and system of GSM/GPRS network and Wi-Fi network |
| CN103298077B (en) * | 2012-02-27 | 2016-02-10 | 京信通信系统（中国）有限公司 | GSM/GPRS network and Wi-Fi network isomery method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005096552A1 (en) | 2005-10-13 |
| UA88291C2 (en) | 2009-10-12 |
| MXPA06011076A (en) | 2007-01-25 |
| CN100550802C (en) | 2009-10-14 |
| JP4382848B2 (en) | 2009-12-16 |
| JP2007531439A (en) | 2007-11-01 |
| KR20060128014A (en) | 2006-12-13 |
| KR101090989B1 (en) | 2011-12-08 |
| DE102004015897B3 (en) | 2005-12-15 |
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