CN102791031A

CN102791031A - Method, device and system for resource request

Info

Publication number: CN102791031A
Application number: CN 201110188593
Authority: CN
Inventors: 周玉宝; 于晓燕; 姚惠娟; 刘乐光; 鲍东山
Original assignee: Beijing Nufront Wireless Technology Co Ltd
Current assignee: Beijing Nufront Wireless Technology Co Ltd
Priority date: 2011-03-31
Filing date: 2011-07-06
Publication date: 2012-11-21
Also published as: CN102740476A; CN102739349B; CN102739375B; CN102739375A; CN102740476B; CN102739349A

Abstract

The invention provides a method, a device and a system used for resource request. The method includes transmitting a first transmission resource request, receiving response of the first transmission resource request in the way that the response of the first transmission resource request carries first transmission resource indication, utilizing the first transmission resource to transmit a second transmission resource request, receiving response of the second transmission resource request in the way that the response of the second transmission resource request carries second transmission resource indication and utilizing the second transmission resource to transmit data. By means of the method, resources required by up link transmission data are effectively acquired, and the method, the device and the system are suitable for scenes without up transmission resources.

Description

A kind of method, Apparatus and system that is used for resource request

It is 2011.3.31 that the application requires the applying date, and application number is 201110081288.6, and denomination of invention is a kind of priority in first to file of wireless communications method, should all embody in this application at the full content of first to file.

Technical field

The invention belongs to wireless communication field, relate in particular to a kind of resource request method, Apparatus and system of being used for.

Background technology

In recent years, radio network technique have based on the WLAN WiFi of 802.11 standards technology, based on 802.15 bluetooth Bluetooth system and by GSM derive and come towards Femto technology of indoor application or the like.

WiFi technology based on IEEE 802.11 is the current the widest a kind of wireless network transmission technology of using.Be mainly used in radio local network environment, application scenarios also can be applicable to outdoor environment with indoor in the majority.802.11 system is evolved to 802.11a and 802.11g based on the OFDM technology by the initial 802.11b based on the CDMA transmission mechanism.Although in up-to-date IEEE 802.11n-2009 standard; Make 802.11n physical layer peak rate can reach 600Mbps through introducing many antennas (MIMO) technology; But usually medium access control (MAC, Media ACess Control) layer only handles up that maximum can reach 300Mbps.So for traditional wlan system, the MAC layer design that inserts based on the single user of CSMA/CA (carrier sense/conflict is avoided) is the bottleneck of network performance always.So, although existing Wi-Fi technology is to a certain extent for the user provides cheap user mode access, the very difficult multimedia service demand that adapts to the two-forty of the current and following develop rapidly again.

Femto technology based on the 3GPP standard is from GSM evolution and the new technology that covers in a kind of faced chamber that comes; Adopt the CDMA transmission mechanism based on the Femto of 3G system technology, then adopt the OFDM transmission mechanism towards the Femto technology of LTE or WiMAX system.Its multiple access access mechanism is that different users distributes mutually orthogonal access-in resource through time, frequency, code word, and this inserts with CSMA/CA random division multiple accessing towards competition has essence different.But the Femto technology is derived by the 3G/LTE/WiMAX system towards GSM.Because the mobile communication scene that the 3G/LTE/WiMAX system mainly covers towards wide area, its system features is not optimized for short-distance and medium-distance radio communication scene.Simultaneously based on the upper-layer protocol design of 3G/LTE/WiMAX more complicated and PHY layer to synchronous etc. strict demand, cause equipment cost can not accomplish the cheap of picture 802.11, this also is one of present major reason that always is not widely used of Femto technology.

Face the multimedia service application demand of develop rapidly day by day,, need to propose suitable more implementation in order to satisfy the short-distance and medium-distance wireless communication needs better.

In view of this, a kind of short-distance and medium-distance wireless communication system protocol infrastructure of redetermination has been proposed at present.Referring to Fig. 1; The figure shows the reference model (system reference model described herein mainly is meant the air interface reference model) of short-distance and medium-distance wireless communication system of the present invention; Comprise MAC layer unit and physical layer element (PHY layer); Through appropriate design MAC layer unit and PHY unit, realize high data throughput:

The MAC layer is the intermediate layer between high-rise and transmitting-receiving PHY layer, is generally used for managing and controlling distribution and the shared physical layer transmission resource between a plurality of users.The MAC layer comprises IP unit, adaptive sublayer and media access control sublayer unit, and wherein the major function of each unit is following:

Unit, the adaptive sublayer of IP: mapping and the function of conversion between external network data and the MAC layer service agreement unit (MSDU) mainly are provided;

Media access control sublayer unit: MAC except taking on the medium access control function, also comprises management and control and responsible control and the physical medium that is connected the PHY layer to system as media access control layer; It has defined packet and how on medium, to have transmitted, and in addition, the pass order of frame, whether the frame of receiving is confirmed and selectable flow control etc. also can realize at this one deck.

PHY layer unit mainly provides the PHY transmission mechanism that mac-layer protocol data cell (MPDU) is mapped to corresponding physical channel, for example OFDM (OFDM) and multiple-input, multiple-output (MIMO) technology.

Referring to Fig. 2, the figure shows the PHY layer frame structure of the short-distance and medium-distance wireless communication system of redetermination, the definition of each subchannel is as shown in table 1 in the frame structure.

Table 1

Usually, short-distance and medium-distance wireless communication system connecting system is made up of access point (CAP) and terminal (STA), and wherein the terminal comprises existing various data equipment, for example: PDA, notebook, camera, video camera etc.As shown in Figure 3, terminal STA 1 inserts CAP with terminal STA 2 through air interface protocol, and CAP sets up through wired or wireless and existing external network (like IP backbone, Ethernet) and communicates by letter.Wherein the agreement of CAP composition is by air interface layer, comprises the two-layer composition of MAC layer and PHY.The STA agreement is formed and is made up of application layer (CAP plication), transmission control layer (TCP), network layer (IP layer), MAC layer and PHY layer.

Referring to Fig. 4; The figure shows the sketch map of process of transmission and the reception of protocol data between STA and the CAP, for example: STA wants to send data to CAP, and STA at first handles application data (like VoIP, video etc.) and packing through application layer, tcp/ip layer; The form of dividing into groups with IP sends to the IP adaptation layer; Changed and shone upon by the IP adaptation layer, send to the MAC layer, the MAC layer is through operations such as burst, encryption, framing, polymerizations; Issue the PHY layer, finally be mapped to the enterprising data transfer of wireless channel by PHY.

In actual communication process, the transmission of data needs available transmission resources, at STA during to the CAP uplink transmission data, needs to obtain to be used for earlier the resource of uplink transmission data.But in the short-distance and medium-distance wireless communication system agreement of redetermination, the resource that how STA is not obtained uplink transmission data is described.

Summary of the invention

The technical problem that the present invention will solve is a kind of method, Apparatus and system that is used for resource request to be provided, in order to obtain the required resource of uplink transmission data.

In order to solve the problems of the technologies described above, the present invention proposes a kind of method that is used for resource request, comprising:

Send first transmission resource request;

Receive first transmission resource request and reply, carry the indication of first transfer resource during said first transmission resource request is replied;

Utilize said first transfer resource to send second transmission resource request;

Receive second transmission resource request and reply, carry the indication of second transfer resource during said second transmission resource request is replied;

Utilize said second transfer resource to send data.

Further, said method also can have following characteristics:

With a plurality of Business Streams each self-corresponding transfer resource transmitting data in said second transfer resource.

Further, said method also can have following characteristics:

Said first transmission resource request is a uplink scheduling request sequence;

Said first resource request is replied the sign of carrying said uplink scheduling request sequence.

Further, said method also can have following characteristics:

Send said first transmission resource request at uplink scheduling request channel;

Said first transmission resource request is replied the sign of carrying said uplink scheduling request channel.

Further, said method also can have following characteristics:

The sign of said uplink scheduling request sequence is the sequence number of said uplink scheduling request sequence.

Further, said method also can have following characteristics:

The sign of said uplink scheduling request channel is the positional information of said uplink scheduling request channel.

Further, said method also can have following characteristics:

On transmitting control channel, receiving said first transmission resource request replys.

Further, said method also can have following characteristics:

The size that comprises the bandwidth resources of each the Business Stream needs in one or more Business Stream in said second transmission resource request.

Further, said method also can have following characteristics:

The sign that also comprises said each Business Stream in said second transmission resource request.

Further, said method also can have following characteristics:

The type that also comprises the bandwidth resources of said each Business Stream needs in said second transmission resource request.

Further, said method also can have following characteristics:

The type of said bandwidth resources comprises:

The increment bandwidth is used in reference to when being shown traffic flow assignment second transfer resource, on the basis of the bandwidth resources size of having distributed for said Business Stream, increases or reduce the size of the bandwidth resources of said this request of Business Stream;

The total amount bandwidth is used in reference to when being shown traffic flow assignment second transfer resource, uses the size of the bandwidth resources of said this request of Business Stream to replace with the bandwidth resources size that said Business Stream has distributed.

Further, said method also can have following characteristics:

The size that comprises total bandwidth resources of the STA needs of initiating said second transmission resource request in said second transmission resource request.

Further, said method also can have following characteristics:

The type that also comprises bandwidth resources in said second transmission resource request.

Further, said method also can have following characteristics:

The type of said bandwidth resources comprises:

The increment bandwidth is used in reference to when being shown STA and distributing second transfer resource, on the basis of the bandwidth resources size of having distributed for said STA, increases or reduce the size of the bandwidth resources of said this request of STA;

The total amount bandwidth is used in reference to when being shown STA and distributing second transfer resource, uses the size of the bandwidth resources of said this request of STA to replace with the bandwidth resources size that said STA has distributed.

Further, said method also can have following characteristics:

The sign that comprises the STA that sends said second transmission resource request in said second transmission resource request;

Said second transmission resource request is replied the sign that carries said STA.

Further, said method also can have following characteristics:

The size of said bandwidth resources is with the index indication of said bandwidth resources in preset resource table.

Further, said method also can have following characteristics:

Said preset resource table comprises the resource table of multiple accuracy rating.

Further, said method also can have following characteristics:

On transmitting control channel, receiving said second transmission resource request replys.

In order to solve the problems of the technologies described above, the present invention also proposes a kind of method that is used for resource request, comprising:

Receive first transmission resource request, for the STA of correspondence distributes first transfer resource;

Send first transmission resource request and reply the STA to said correspondence, said first transmission resource request is replied and is carried the indication of first transfer resource;

Receive second transmission resource request, for the STA of correspondence distributes second transfer resource;

Send second transmission resource request and reply the STA to said correspondence, said second transmission resource request is replied and is carried the indication of second transfer resource;

Said first transfer resource is used for STA and sends second transmission resource request;

Said second transfer resource is used for STA and sends data.

Further, said method also can have following characteristics:

On uplink scheduling request channel, receive said first transmission resource request;

Further, said method also can have following characteristics:

On transmitting control channel, sending said first transmission resource request replys.

Further, said method also can have following characteristics:

Adopting broadcast mode to send said first transmission resource request replys.

Further, said method also can have following characteristics:

The type of said bandwidth resources comprises:

Further, said method also can have following characteristics:

The type of said bandwidth resources comprises:

Further, said method also can have following characteristics:

On transmitting control channel, sending said second transmission resource request replys.

Further, said method also can have following characteristics:

Adopting mode of unicast to send said second transmission resource request replys.

In order to solve the problems of the technologies described above, the present invention proposes a kind of method that is used for resource request again, comprising:

Generate transmission resource request, comprise the size of the bandwidth resources of each the Business Stream needs in one or more Business Stream in the said transmission resource request;

Send said transmission resource request.

Further, said method also can have following characteristics:

The sign that also comprises said each Business Stream in the said transmission resource request.

Further, said method also can have following characteristics:

The type that also comprises the bandwidth resources of said each Business Stream needs in the said transmission resource request.

Further, said method also can have following characteristics:

The type of said bandwidth resources comprises:

The increment bandwidth is used in reference to when being shown the traffic flow assignment transfer resource, on the basis of the bandwidth resources size of having distributed for said Business Stream, increases or reduce the size of the bandwidth resources of said this request of Business Stream;

The total amount bandwidth is used in reference to when being shown the traffic flow assignment transfer resource, uses the size of the bandwidth resources of said this request of Business Stream to replace with the bandwidth resources size that said Business Stream has distributed.

Further, said method also can have following characteristics:

The sign that comprises the STA that sends said transmission resource request in the said transmission resource request.

Further, said method also can have following characteristics:

Generate transmission resource request, comprise the size of total bandwidth resources of STA needs in the said transmission resource request;

Send said transmission resource request.

Further, said method also can have following characteristics:

The type that also comprises bandwidth resources in the said transmission resource request.

Further, said method also can have following characteristics:

The type of said bandwidth resources comprises:

The increment bandwidth is used in reference to when being shown the STA allocation of transmission resources, on the basis of the bandwidth resources size of having distributed for said STA, increases or reduce the size of the bandwidth resources of said this request of STA;

The total amount bandwidth is used in reference to when being shown the STA allocation of transmission resources, uses the size of the bandwidth resources of said this request of STA to replace with the bandwidth resources size that said STA has distributed.

Further, said method also can have following characteristics:

In order to solve the problems of the technologies described above, the present invention proposes a kind of terminal STA that is used for resource request again, comprising:

First sending module is used to send first transmission resource request;

First receiver module is used to receive first transmission resource request and replys, and carries the indication of first transfer resource during said first transmission resource request is replied;

Second sending module is used to utilize said first transfer resource to send second transmission resource request;

Second receiver module is used to receive second transmission resource request and replys, and carries the indication of second transfer resource during said second transmission resource request is replied;

The 3rd sending module is used to utilize said second transfer resource to send data.

Further, above-mentioned STA also can have following characteristics:

Resource distribution module is used for a plurality of Business Streams at each self-corresponding transfer resource transmitting data of said second transfer resource.

Further, above-mentioned STA also can have following characteristics:

Said first sending module is used for sending said first transmission resource request at uplink scheduling request channel;

Further, above-mentioned STA also can have following characteristics:

Said first receiver module is used on transmitting control channel, receiving said first transmission resource request and replys.

Further, above-mentioned STA also can have following characteristics:

The type of said bandwidth resources comprises:

Further, above-mentioned STA also can have following characteristics:

The type of said bandwidth resources comprises:

Further, above-mentioned STA also can have following characteristics:

Said second receiver module is used on transmitting control channel, receiving said second transmission resource request and replys.

In order to solve the problems of the technologies described above, the present invention proposes a kind of central access point CAP that is used for resource request again, comprising:

First receiver module is used to receive first transmission resource request, for the STA of correspondence distributes first transfer resource;

First sending module is used to send first transmission resource request and replys the STA to said correspondence, and said first transmission resource request is replied and carried the indication of first transfer resource;

Second receiver module is used to receive second transmission resource request, for the STA of correspondence distributes second transfer resource;

Second sending module is used to send second transmission resource request and replys the STA to said correspondence, and said second transmission resource request is replied and carried the indication of second transfer resource;

Said second transfer resource is used for STA and sends data.

Further, above-mentioned CAP also can have following characteristics:

Said first receiver module is used on transmitting control channel, sending said first transmission resource request and replys.

Further, above-mentioned CAP also can have following characteristics:

Said first receiver module is used to adopt broadcast mode to send said first transmission resource request and replys.

Further, above-mentioned CAP also can have following characteristics:

The type of said bandwidth resources comprises:

Further, above-mentioned CAP also can have following characteristics:

The type of said bandwidth resources comprises:

Further, above-mentioned CAP also can have following characteristics:

Said second sending module is used on transmitting control channel, sending said second transmission resource request and replys.

Further, above-mentioned CAP also can have following characteristics:

Said second sending module is used to adopt mode of unicast to send said second transmission resource request and replys.

In order to solve the problems of the technologies described above, the present invention proposes a kind of system that is used for resource request again, comprises above-mentioned STA and CAP, and both are mutual, realizes resource request.

A kind of method, Apparatus and system that is used for resource request provided by the invention is in order to obtain the required resource of uplink transmission data.

Figure of description

Fig. 1 is the system architecture sketch map of the short-distance and medium-distance wireless communication system of redetermination;

Fig. 2 is the PHY layer frame structure of the short-distance and medium-distance wireless communication system of redetermination;

Fig. 3 is the sketch map that the agreement of terminal and access point constitutes in the short-distance and medium-distance wireless communication system of redetermination;

Fig. 4 is the sketch map that the protocol data of STA and CAP sends and receives in the short-distance and medium-distance wireless communication system of redetermination;

Fig. 5 is the method flow diagram of a kind of resource request of first embodiment of the invention;

Fig. 6 is an embodiment of the invention dispatch request sequence generating method schematic flow sheet;

Fig. 7 is an embodiment of the invention PN sequence generator principle schematic;

Fig. 8 is an embodiment of the invention independent resource claim frame structural representation;

Fig. 9 is the STA device block diagram that is used to realize the competitive resource request of first embodiment;

Figure 10 is the CAP device block diagram that is used to realize the competitive resource request of first embodiment;

Figure 11 is a kind of method flow diagram with the road resource request of second embodiment of the invention;

Figure 12 is the STA device block diagram with the road resource request that is used to realize second embodiment;

Figure 13 is the CAP device block diagram with the road resource request that is used to realize second embodiment;

Figure 14 is the method flow diagram of a kind of poll resource request of third embodiment of the invention;

Figure 15 is the CAP device block diagram that is used to realize the poll resource request of the 3rd embodiment;

Figure 16 is the method flow diagram of a kind of poll resource request of fourth embodiment of the invention;

Figure 17 is the CAP device block diagram that is used to realize the poll resource request of the 4th embodiment;

Figure 18 is the method flow diagram of a kind of poll resource request of fifth embodiment of the invention;

Figure 19 is the CAP device block diagram that is used to realize the poll resource request of the 5th embodiment;

Figure 20 is the method flow diagram of a kind of poll resource request of sixth embodiment of the invention;

Figure 21 is the CAP device block diagram that is used to realize the poll resource request of the 6th embodiment.

Embodiment

Below description and accompanying drawing illustrate specific embodiments of the present invention fully, to enable those skilled in the art to put into practice them.Other embodiments can comprise structure, logic, electric, process and other change.Embodiment only represents possible variation.Only if explicitly call for, otherwise independent assembly and function are optional, and the order of operation can change.The part of some embodiments and characteristic can be included in or replace the part and the characteristic of other embodiments.The scope of embodiment of the present invention comprises the gamut of claims, and all obtainable equivalents of claims.In this article; These embodiments of the present invention can be represented with term " invention " individually or always; This only is for ease, and if in fact disclose and surpass one invention, not that the scope that will automatically limit this application is any single invention or inventive concept.

First embodiment

The embodiment of the invention provides a kind of method of resource request, initiatively initiates transmission resource request to CAP by the STA that needs uplink transmission data, obtains uplink transmission resource through competitive way, and is specifically as shown in Figure 5, comprises step:

Step S501:STA sends first transmission resource request;

Step S502:CAP receives said first transmission resource request, for said STA distributes first transfer resource;

Step S503: said CAP sends first transmission resource request and replys to said STA, carries the indication of first transfer resource during said first transmission resource request is replied;

Step S504: said STA receives said first transmission resource request and replys;

Step S505: said STA utilizes said first transfer resource to send second transmission resource request;

Step S506: said CAP receives said second transmission resource request, for said STA distributes second transfer resource;

Step S507: said CAP sends second transmission resource request and replys to said STA, carries the indication of second transfer resource during said second transmission resource request is replied;

Step S508: said STA receives said second transmission resource request and replys;

Step S509: said STA utilizes said second transfer resource to send data.

The method of the above-mentioned resource request of the embodiment of the invention is initiatively initiated transmission resource request to CAP by STA, and is mutual through twice; Promptly initiate first transmission resource request earlier, trigger the resource request process, ask first transfer resource; Utilize first transfer resource to send second transmission resource request again; Ask to be used for second transfer resource of uplink transmission data, thereby accomplish whole resource request process, obtain the required resource of uplink transmission data.

Preferably, said first transmission resource request can be initiated through the uplink scheduling mode.Certainly, in another embodiment, said first transmission resource request also can adopt other modes to initiate; For example utilize idle uplink transmission resource to initiate; Perhaps be carried in the uplink data frames with Frame and send initiating, or the like, the present invention does not limit at this.To the mode that the embodiment of the invention adopts scheduling mode to initiate first transmission resource request be further specified below.

Said first transmission resource request specifically can be a uplink scheduling request sequence.After CAP receives the uplink scheduling request sequence as first transmission resource request,, first transmission resource request carries the sign of said uplink scheduling request sequence in replying.Certainly, in another embodiment, said first transmission resource request also can adopt other forms, and the present invention does not limit at this.To design the uplink scheduling request sequence to the embodiment of the invention below describes as the mode of first transmission resource request.

Can design a plurality of uplink scheduling request sequences that can be used as first transmission resource request in advance; STA is when initiating first transmission resource request; Can select one as first transmission resource request from said a plurality of uplink scheduling request sequences according to predetermined rule.Selection mode can be provided with as required, equiprobability selection mode for example, or the like.

When the sign of design uplink scheduling request sequence, can be to can being elected to be a plurality of uplink scheduling request sequences numberings of first transmission resource request, with the sequence number of up dispatch request sequence sign as said uplink scheduling request sequence.Certainly, can otherwise identify different uplink scheduling request sequences, the present invention does not limit at this yet.

The embodiment of the invention gives a kind of concrete grammar that generates the uplink scheduling request sequence; As shown in Figure 6; Comprise step successively: generate PN sequence, constellation mapping, subcarrier mapping, generation cyclically shifted sequences, invert fast fourier transformation (Inverse Fast Fourier Transform is called for short FFT), add CP.Among Fig. 6, CAP_MAC refers to minimum 7 bits of the MAC Address of CAP, and i is PN sequence index (0≤i＜4), { δ _CSBe the cyclic shift parameter set, j is cyclic shift parameter reference (0≤j＜8).

Generate the PN sequence step, can adopt mode as shown in Figure 7 to realize.That is, PN sequence employing generator polynomial is 1+X ¹¹+ X ¹⁵Maximum length linear feedback shift register sequence.The initial value r of register _Init=[00101011r ₆r ₅r ₄r ₃r ₂r ₁r ₀] _b, MSB is on a left side, and LSB is on the right side; [r wherein ₆r ₅r ₄r ₃r ₂r ₁r ₀] _b=CAP_MAC is minimum 7 bits of the MAC Address of CAP.

The constellation mapping step can adopt the BPSK modulation system.As shown in table 2, sequence S _iAfter the BPSK modulation, obtain sequence C _i

Table 2

Input bit (b ₀)	The output of I road	The output of Q road
			0	-1	0
1	1	0

The subcarrier mapping step can be according to following formula, with sequence C _iCarry out the subcarrier mapping according to following formula, obtain sequence M _i

M_{i, k} = \{\begin{matrix} C_{i, k + 112} & if - 112 \leq k < 0 \\ C_{i, k + 111} & if 1 \leq k < 113 \\ 0 & otherwise \end{matrix} . . . (1)

Generate the cyclically shifted sequences step, can be to the sequence M after the subcarrier mapping _iAccording to the following formula cyclic shift, obtain sequence

T_{i, k}^{j} = M_{i, k} e^{- j \frac{2 πk δ_{CS}^{j}}{N_{IFFT}}} . . . (1)

In the formula: N _IFFTBe counting of IFFT,

Be the cyclic shift parameter, unit is the sampled point number.For 20MHz system, N _IFFT=256, { δ _CS}={ 0 32 64 96 128 160192 224}.

Afterwards; After cyclically shifted sequences

carried out IFFT and add CP and handle, obtain the dispatch request sequence.Adopt this method will obtain 32 dispatch request sequences.Afterwards, said dispatch request sequence promptly capable of using has been initiated the competitive resource request.

Certainly, in another embodiment, can adopt other modes to generate the uplink scheduling request sequence, the present invention does not limit at this yet.

Preferably, said first transmission resource request can be sent on uplink scheduling request channel.After CAP receives first transmission resource request,, first transmission resource request carries the sign of said uplink scheduling request channel in replying.The embodiment of the invention is initiated first transmission resource request through uplink scheduling request channel dexterously; Realize embodiment of the invention resource request process through competitive way; Whether thereby need not to monitor uplink transport channel has resource to use; Even do not having under the situation of uplink transmission resource, can carry out resource request yet.Certainly, in another embodiment, said first transmission resource request also can be initiated through other channels, for example utilizes uplink transport channel, and the present invention does not limit at this.

Adopt uplink scheduling request channel to initiate first transmission resource request, can design the sign of the positional information of uplink scheduling request channel as said uplink scheduling request channel.Certainly, in another embodiment, can otherwise identify different uplink scheduling request channels, the present invention does not limit at this yet.

When uplink scheduling request channel is initiated first transmission resource request, can be as required, for example adopt mode such as BPSK, QPSK that first transmission resource request is modulated on the uplink scheduling request channel and send out.

Preferably, said CAP can distribute indication through the transmitting control channel down distributing resource after distributing first transfer resource for said STA.That is, said CAP can send first transmission resource request and reply on transmitting control channel, wherein carries the indication of first transfer resource.Correspondingly, said STA will receive said first transmission resource request and reply on said transmitting control channel, therefrom be known as first transfer resource of its distribution.Certainly, in another embodiment, can design yet and issue said first transmission resource request through other channels and reply, the present invention does not limit at this.

Preferably, said CAP can send said first transmission resource request with the mode of broadcasting and reply after distributing first transfer resource for said STA.

Adopt broadcast mode to send first transmission resource request when replying, said STA will receive corresponding replying according to preset rule.For example; Employing with up dispatch request sequence as first transmission resource request; When it is modulated to the scheduling mode that sends on the uplink scheduling request channel and initiates first transmission resource request; The sign of the uplink scheduling request channel that can belong to the sign and the said uplink scheduling request sequence of up dispatch request sequence is as the correct basis for estimation that receives; STA is through the sign as the uplink scheduling request channel at the sign of the uplink scheduling request sequence of first transmission resource request and said uplink scheduling request sequence place with its transmission; The sign of the uplink scheduling request sequence in replying with first transmission resource request that receives and uplink scheduling request channel marking matched receives corresponding replying with correct.

Preferably, the embodiment of the invention provides a kind of form of second transmission resource request, supports to report institute's requested resource based on Business Stream.Wherein, comprise the sign of the STA that initiates said second transmission resource request in said second transmission resource request, the size of the bandwidth resources that each Business Stream in one or more Business Stream of said STA needs, and the sign of said each Business Stream.CAP can be known each Business Stream of said STA through resolving said second transmission resource request, and the resource requirement situation of said each Business Stream.

The type that preferably, can also comprise the bandwidth resources of said each Business Stream needs in said second transmission resource request.CAP supports the bandwidth resources type that STA is asked for the different service streams selection as required, and resource request is more flexible, and is more humane.

The type of optional bandwidth resources can comprise:

The increment bandwidth is used in reference to when being shown traffic flow assignment second transfer resource, on the basis of the bandwidth resources size of having distributed for said Business Stream, increases or reduce the size of the bandwidth resources of said this request of Business Stream.

Preferably, the embodiment of the invention also provides the form of another kind of second transmission resource request, supports to report institute's requested resource based on STA.Wherein, comprise the sign of the STA that initiates said second transmission resource request in said second transmission resource request, and the size of total bandwidth resources of said STA needs.

The type that preferably, can also comprise the bandwidth resources of said STA needs in said second transmission resource request.CAP supports STA to select the bandwidth resources type of being asked as required, and resource request is more flexible, and is more humane.

The type of optional bandwidth resources can comprise:

Preferably, the embodiment of the invention also provides a kind of bandwidth resources method for expressing, through the design resource table, indicates the size of the bandwidth resources of being asked with said bandwidth resources index in preset resource table.Thereby when reporting the bandwidth resources that need; Only need carry said bandwidth resources and get final product, especially when the bandwidth resources of asking are big, substitute concrete bandwidth resources numerical value with index value corresponding to the index value in the resource table; To significantly reduce shared bit, practice thrift transfer resource.For more directly perceived, provide a kind of resource table example below, as shown in table 3.

Table 3

Preferably, can design the resource table of multiple accuracy rating as required.The resource table that example is as shown in table 4, its precision is greater than the resource table shown in the table 3.When carrying out resource request; Can select the adequate resources table according to institute's requested resource; In resource request, carry the sign and the index of resource table, the CAP side is safeguarded same resource table, according to the sign and the index of the resource table in the resource request that receives; Navigate to the resource size of manipulative indexing in the corresponding resource table, thereby know the size of STA institute requested resource.

Table 4

Index	Resource size value [byte]	Index	Resource size value [byte]
				0	BS＝0	32	4940＜BS＜＝6074
1	0＜BS＜＝10	33	6074＜BS＜＝7469
				2	10＜BS＜＝13	34	7469＜BS＜＝9185
3	13＜BS＜＝16	35	9185＜BS＜＝11294
				4	16＜BS＜＝19	36	11294＜BS＜＝13888
5	19＜BS＜＝23	37	13888＜BS＜＝17077
				6	23＜BS＜＝29	38	17077＜BS＜＝20999
7	29＜BS＜＝35	39	20999＜BS＜＝25822
				8	35＜BS＜＝43	40	25822＜BS＜＝31752
9	43＜BS＜＝53	41	31752＜BS＜＝39045
				10	53＜BS＜＝65	42	39045＜BS＜＝48012
11	65＜BS＜＝80	43	48012＜BS＜＝59039
				12	80＜BS＜＝98	44	59039＜BS＜＝72598
13	98＜BS＜＝120	45	72598＜BS＜＝89272
				14	120＜BS＜＝147	46	89272＜BS＜＝109774
15	147＜BS＜＝181	47	109774＜BS＜＝134986
				16	181＜BS＜＝223	48	134986＜BS＜＝165989
17	223＜BS＜＝274	49	165989＜BS＜＝204111

18	274＜BS＜＝337	50	204111＜BS＜＝250990
				19	337＜BS＜＝414	51	250990＜BS＜＝308634
20	414＜BS＜＝509	52	308634＜BS＜＝379519
				21	509＜BS＜＝625	53	379519＜BS＜＝466683
22	625＜BS＜＝769	54	466683＜BS＜＝573866
				23	769＜BS＜＝945	55	573866＜BS＜＝705666
24	945＜BS＜＝1162	56	705666＜BS＜＝867737
				25	1162＜BS＜＝1429	57	867737＜BS＜＝1067031
26	1429＜BS＜＝1757	58	1067031＜BS＜＝1312097
				27	1757＜BS＜＝2161	59	1312097＜BS＜＝1613447
28	2161＜BS＜＝2657	60	1613447＜BS＜＝1984009
				29	2657＜BS＜＝3267	61	1984009＜BS＜＝2439678
30	3267＜BS＜＝4017	62	2439678＜BS＜＝3000000
				31	4017＜BS＜＝4940	63	BS＞3000000

In the embodiment of the invention, said second transmission resource request can be carried in the resource request frame sends.The embodiment of the invention is an example with the above-mentioned mode that reports based on Business Stream, has provided a kind of concrete resource request frame structure, and is as shown in Figure 8, comprises frame head, payload and check information part (FCS).Comprise frame control information in the frame head, for example frame type (being management frames), subtype (being the resource request frame here), version information etc. here; Comprise STAID, FID number in the payload, and the bandwidth resources solicited message of one or more Business Stream, wherein, comprise FID, the type of resource table, the RES-R of said Business Stream in the bandwidth resources solicited message of each Business Stream.Wherein, RES-R representes the index of bandwidth resources in resource table of being asked.Among Fig. 8, be type identification resource table, for example with resource table; Definition list 3 is the resource table of non-expansion; Table 4 is the resource table of expansion, and the type field of resource table is the resource table that non-expansion is used in 0 expression, and the type field of resource table is the resource table that expansion is used in 1 expression; Certainly can adopt other mode identifying resource tables in another embodiment, the present invention does not limit at this yet.In addition, in the time can supporting to distribute dissimilar resources, when for example supporting increment and total amount resource allocation, the information of the resource type of this traffic request of indication can also be set in the bandwidth resources solicited message of said Business Stream.

If adopt the above-mentioned mode that reports based on STA, the payload part that then only needs to change resource request frame shown in Figure 8 gets final product, and at payload part encapsulation STAID, the sign of resource table, RES-R, the embodiment of the invention repeats no more at this.

Said CAP can send said second transmission resource request with the mode of clean culture to reply after distributing second transfer resource for said STA, wherein carries the indication of second transfer resource.Said STA receives corresponding replying according to preset rule.For example; As the correct basis for estimation that receives, that is, STA carries the STAID of self in second transmission resource request with STAID; CAP is when returning second transmission resource request and reply for said STA; Also can in said second transmission resource request is replied, carry the STAID of said STA, whether second transmission resource request that STA receives through judgement carries the STAID of himself in replying, thereby determines whether correctly to receive corresponding replying.

Preferably, said CAP can distribute indication through the transmitting control channel down distributing resource after distributing second transfer resource for said STA.That is, said CAP can send second transmission resource request and reply on transmitting control channel, wherein carries the indication of second transfer resource.Correspondingly, said STA will receive said second transmission resource request and reply on said transmitting control channel, therefrom be known as second transfer resource of its distribution.Certainly, in another embodiment, can design yet and issue said second transmission resource request through other channels and reply, the present invention does not limit at this.

In order to realize the resource request method of above-mentioned employing competitive way, the embodiment of the invention also provides a kind of STA that is used to realize resource request, and is as shown in Figure 9, comprising:

First sending module is used to send first transmission resource request;

Preferably, said STA also comprises:

Preferably, said first transmission resource request can be a uplink scheduling request sequence; Said first resource request is replied the sign of carrying said uplink scheduling request sequence.

Preferably, said first sending module can send said first transmission resource request at uplink scheduling request channel; Said first transmission resource request is replied the sign of carrying said uplink scheduling request channel.

Preferably, the sign of said uplink scheduling request sequence can be the sequence number of said uplink scheduling request sequence.

Preferably, the sign of said uplink scheduling request channel can be the positional information of said uplink scheduling request channel.

Preferably, said first receiver module can receive said first transmission resource request and reply on transmitting control channel.

Preferably, said second transmission resource request can report resource request based on Business Stream:

It is the size that can comprise the bandwidth resources of each the Business Stream needs in one or more Business Stream in said second transmission resource request.The sign that wherein, can also comprise said each Business Stream in said second transmission resource request.

The type that preferably, can also comprise the bandwidth resources of said each Business Stream needs in said second transmission resource request.

Preferably, the type of said bandwidth resources can comprise:

Preferably, said second transmission resource request can also report resource request based on STA:

That is the size that, can comprise total bandwidth resources of the STA needs of initiating said second transmission resource request in said second transmission resource request.

Preferably, the type that also comprises bandwidth resources in said second transmission resource request.

Preferably, the type of said bandwidth resources can comprise:

Preferably, can indicate the size of the bandwidth resources of being asked with the index in the preset resource table.

Preferably, said preset resource table comprises the resource table of multiple accuracy rating.

Preferably, the sign that comprises the STA that sends said second transmission resource request in said second transmission resource request; Said second transmission resource request is replied the sign that carries said STA.

Preferably, said second receiver module can receive said second transmission resource request and reply on transmitting control channel.

In order to realize the resource request method of above-mentioned employing competitive way, the embodiment of the invention also provides a kind of CAP that is used to realize resource request, and is shown in figure 10, comprising:

Said second transfer resource is used for STA and sends data.

Preferably, can on uplink scheduling request channel, receive said first transmission resource request; Said first transmission resource request is replied the sign of carrying said uplink scheduling request channel.

Preferably, said first receiver module can send said first transmission resource request and reply on transmitting control channel.

Preferably, said first receiver module can adopt broadcast mode to send said first transmission resource request and reply.

That is the size that, can comprise the bandwidth resources of each the Business Stream needs in one or more Business Stream in said second transmission resource request.

The sign that preferably, can also comprise said each Business Stream in said second transmission resource request.

Preferably, the type of said bandwidth resources can comprise:

Preferably, said second transmission resource request can report resource request based on STA:

The type that preferably, can also comprise bandwidth resources in said second transmission resource request.

Preferably, the type of said bandwidth resources can comprise:

The sign that preferably, can comprise the STA that sends said second transmission resource request in said second transmission resource request; Said second transmission resource request is replied the sign that carries said STA.

Preferably, said second sending module can send said second transmission resource request and reply on transmitting control channel.

Preferably, said second sending module can adopt mode of unicast to send said second transmission resource request and reply.

In order to realize the resource request method of above-mentioned employing competitive way, the embodiment of the invention also provides a kind of system that is used to realize resource request, comprises aforesaid STA and CAP.

Second embodiment

The embodiment of the invention also provides a kind of method of resource request, utilizes the opportunity and the resource of transmit ascending data dexterously, and transmission resource request is sent to CAP with upstream data, and is specifically shown in figure 11, comprises step:

Step S1101:STA is carried on transmission resource request in the Frame;

Step S1102: said STA sends the said Frame that carries transmission resource request;

Step S1103:CAP receives the said Frame that carries transmission resource request;

Step S1104: said CAP parses said transmission resource request from said Frame;

Step S1105: said CAP is said STA allocation of transmission resources according to said transmission resource request;

Step S1106: said CAP sends transmission resource request and replys to said STA, and said transmission resource request is replied and carried the transfer resource indication;

Step S1107: said STA receives said defeated resource request and replys;

Step S1108: said STA utilizes said transfer resource to send data.

The embodiment of the invention adopts said method dexterously transmission resource request to be sent to CAP with upstream data, with request resource.Last when transmitting uplink data is arranged; Can adopt the embodiment of the invention above-mentioned with road resource request mode request resource; Thereby need not send the required uplink transmission resource of said transmission resource request for going for earlier to ask; In the implementation procedure of resource request interactive step still less, the required duration of request resource is shorter.

Preferably, STA can also carry in carrying the Frame of transmission resource request with road request indication, is used to indicate the existence of said transmission resource request.Correspondingly, CAP can judge whether carry transmission resource request in the said Frame through said with road request indication fast after receiving Frame.Certainly, in another embodiment, also can not carry and indicate with the road request; But, specific fields carries said transmission resource request through for example being set; Through resolving corresponding field, judge and whether carry transmission resource request in the said Frame, the present invention does not limit at this.

Consider that CAP when the resolution data frame, generally will resolve frame head earlier, therefore the information that gets parms, when encapsulation is indicated with the road request in Frame, can be encapsulated in the frame head of said Frame with road request indication said.

When specifically realizing indicating with the road request, can in the frame head of Frame, be provided with one with road request indication field, indicate the existence of said transmission resource request through the value of said field.For example, there is transmission resource request in 1 expression, and there is not transmission resource request in 0 expression.

Saidly can be a new field with road request indication field, also can use the existing field in the frame head, for example spare field is defined as with road request indication field again, and the present invention does not limit at this.Said can be with the position of request indication field in frame head, road according to preset rule setting, the present invention does not limit at this.

STA can be carried on said transmission resource request in the frame of said Frame.When concrete the realization, can in the frame of Frame, be provided with one with road resource request field, carry said transmission resource request.When not carrying transmission resource request in the Frame, then can in the frame of Frame, not be provided with road resource request field, perhaps also can be filled to a fixed value with road resource request field with said.

Saidly can be a new field with road resource request field, also can use the existing field in the frame, for example spare field is defined as with road resource request field again, and the present invention does not limit at this.Said with the position of resource request field in frame, road according to preset rule setting, for example can stipulate with road resource request field to be preceding several bits of frame, the present invention does not limit at this.

Preferably, the embodiment of the invention provides a kind of form of transmission resource request, supports to report institute's requested resource based on Business Stream.Wherein, comprise the sign of the STA that initiates said transmission resource request in the said transmission resource request, the size of the bandwidth resources that each Business Stream in one or more Business Stream of said STA needs, and the sign of said each Business Stream.CAP can be known each Business Stream of said STA through resolving said transmission resource request, and the resource requirement situation of said each Business Stream.

The type that preferably, can also comprise the bandwidth resources of said each Business Stream needs in the said transmission resource request.CAP supports the bandwidth resources type that STA is asked for the different service streams selection as required, and resource request is more flexible, and is more humane.

The type of optional bandwidth resources can comprise:

Preferably, the embodiment of the invention also provides the form of another kind of transmission resource request, supports to report institute's requested resource based on STA.Wherein, comprise the sign of the STA that initiates said transmission resource request in the said transmission resource request, and the size of total bandwidth resources of said STA needs.

The type that preferably, can also comprise the bandwidth resources of said STA needs in the said transmission resource request.CAP supports STA to select the bandwidth resources type of being asked as required, and resource request is more flexible, and is more humane.

The type of optional bandwidth resources can comprise:

Preferably, the embodiment of the invention also provides a kind of bandwidth resources method for expressing, through design resource table (for example table 3), indicates the size of the bandwidth resources of being asked with said bandwidth resources index in preset resource table.Thereby when reporting the bandwidth resources that need; Only need carry said bandwidth resources and get final product, especially when the bandwidth resources of asking are big, substitute concrete bandwidth resources numerical value with index value corresponding to the index value in the resource table; To significantly reduce shared bit, practice thrift transfer resource.

The embodiment of the invention has provided a kind of concrete data frame structure that comprises transmission resource request, comprises frame head, payload and check information part (FCS).Comprise in the frame head with road resource request field; When in the value indication frame with road resource request field transmission resource request being arranged; Comprise in the frame with road resource request field; Said with the bandwidth resources request that comprises one or more Business Stream in the resource request field of road, comprise FID, the type of resource table, the RES-R of said Business Stream in the bandwidth resources request of each Business Stream.Wherein, RES-R representes the index of bandwidth resources in resource table of being asked.Among Figure 10, be type identification resource table, for example with resource table; Definition list 3 is the resource table of non-expansion; Table 4 is the resource table of expansion, and the type field of resource table is the resource table that non-expansion is used in 0 expression, and the type field of resource table is the resource table that expansion is used in 1 expression; Certainly can adopt other mode identifying resource tables in another embodiment, the present invention does not limit at this yet.In addition, in the time can supporting to distribute dissimilar resources, when for example supporting increment and total amount resource allocation, the information of the resource type of this traffic request of indication can also be set in the bandwidth resources solicited message of said Business Stream.

If adopt the above-mentioned mode that reports based on STA, then only need to change and above-mentionedly carry content with road resource request field and get final product, the sign of bearing resource table, RES-R therein, the embodiment of the invention repeats no more at this.

Said CAP can send said transmission resource request with the mode of clean culture and reply after being said STA allocation of transmission resources, wherein carries the transfer resource indication.Said STA receives corresponding replying according to preset rule.For example; As the correct basis for estimation that receives, that is, STA carries the STAID of self in transmission resource request with STAID; CAP is when returning transmission resource request and reply for said STA; Also can in said transmission resource request is replied, carry the STAID of said STA, whether carry the STAID of himself during the transmission resource request that STA receives through judgement is replied, thereby determine whether correctly to receive corresponding replying.

Preferably, said CAP can distribute indication through the transmitting control channel down distributing resource after being said STA allocation of transmission resources.That is, said CAP can send transmission resource request and reply on transmitting control channel, wherein carries the transfer resource indication.Correspondingly, said STA will receive said transmission resource request and reply on said transmitting control channel, therefrom be known as the transfer resource of its distribution.Certainly, in another embodiment, can design yet and issue said transmission resource request through other channels and reply, the present invention does not limit at this.

In order to realize the resource request method of above-mentioned employing associated mode, the embodiment of the invention also provides a kind of being used to realize the STA with the road resource request, and is shown in figure 12, comprising:

Package module is used for transmission resource request is carried on Frame;

First sending module is used to send the said Frame that carries transmission resource request.

Receiver module is used to receive transmission resource request and replys, and carries the transfer resource indication during said transmission resource request is replied;

Second sending module is used to utilize said transfer resource to send data.

Preferably, can also comprise in the said Frame, be used to indicate the existence of said transmission resource request with road request indication.

Preferably, said package module can also encapsulate in Frame with road request indication, is used to indicate the existence of said transmission resource request.

Preferably, said package module can be carried in the frame head of said Frame with road request indication said.

Preferably, said package module can be provided with a field in the frame head of Frame, indicate the existence of said transmission resource request through the value of said field.

Preferably, said package module can be carried on said transmission resource request in the frame of said Frame.

Preferably, said package module can be provided with a field in the frame at Frame, carry said transmission resource request.

Preferably, said transmission resource request can report resource request based on Business Stream:

That is, can comprise the sign of individual or a plurality of Business Streams in the said transmission resource request, and the size of the bandwidth resources of each Business Stream needs.

The type that preferably, can also comprise the bandwidth resources of said each Business Stream needs in the said transmission resource request.

Preferably, the type of said bandwidth resources can comprise:

Preferably, said transmission resource request can report resource request based on STA:

That is the size that, can comprise total bandwidth resources of the STA needs of initiating said transmission resource request in the said transmission resource request.

The type that preferably, can also comprise bandwidth resources in the said transmission resource request.

Preferably, the type of said bandwidth resources can comprise:

Preferably, the sign that comprises the STA that sends said transmission resource request in the said transmission resource request; Said transmission resource request is replied the sign that carries said STA.

Preferably, can be with the size of the indication of the index in preset resource table bandwidth resources.

Preferably, said second sending module can be with a plurality of Business Streams each self-corresponding transfer resource transmitting data in said transfer resource.

Preferably, said receiver module can receive said transmission resource request and reply on transmitting control channel.

In order to realize the resource request method of above-mentioned employing associated mode, the embodiment of the invention also provides a kind of being used to realize the CAP with the road resource request, and is shown in figure 13, comprising:

Receiver module is used to receive the Frame that carries transmission resource request;

Parsing module is used for parsing said transmission resource request from said Frame;

Resource distribution module is used for according to said transmission resource request, for the terminal STA of correspondence is distributed first transfer resource;

Sending module is used to send transmission resource request and replys the STA to said correspondence, carries the transfer resource indication during said transmission resource request is replied.

Preferably, can also comprise in the said Frame, be used to indicate the existence of said transmission resource request with road request indication.Correspondingly, said parsing module can be known the existence of transmission resource request through indicating with the road request in the resolution data frame.

Preferably, be provided with a field in the frame head of Frame, the value of said field is indicated the existence of said transmission resource request.Correspondingly, said parsing module, can through in the frame head of resolution data frame with road request indication field, obtain saidly indicating with the road request.

Preferably, said transmission resource request is carried in the frame of said Frame.Correspondingly, said parsing module can obtain said transmission resource request through the frame of resolution data frame.

Preferably, be provided with a field in the frame of said Frame, carry said transmission resource request.Correspondingly, said parsing module, can through in the frame of resolution data frame with road resource request field, to obtain said transmission resource request.

That is, comprise the sign of one or more Business Stream in the said transmission resource request, and the size of the bandwidth resources of each Business Stream needs.

Preferably, the type of said bandwidth resources can comprise:

That is the size that, comprises total bandwidth resources of the STA needs of initiating said transmission resource request in the said transmission resource request.

Preferably, the type of said bandwidth resources can comprise:

Preferably, the sign that comprises the STA that sends said transmission resource request in the said transmission resource request; During replying, said transmission resource request carries the sign of said STA.

Preferably, said sending module can send said transmission resource request and reply the STA to said correspondence on transmitting control channel.

Preferably, said sending module can adopt mode of unicast to send said transmission resource request and reply the STA to said correspondence.

In order to realize the resource request method of above-mentioned employing associated mode, the embodiment of the invention also provides a kind of being used to realize the system with the road resource request, comprises aforesaid STA and CAP.

The 3rd embodiment

The embodiment of the invention also provides a kind of method of resource allocation, initiatively is that at least one STA poll branch is used in the resource of sending resource request by CAP, and is specifically shown in figure 14, comprises step:

At least one STA of step S1401:CAP poll is for each STA that is polled to distributes first transfer resource;

Step S1402: said CAP sends the STA that is polled to said that replys that carries the indication of first transfer resource;

Step S1403: said STA receives and carries replying of first transfer resource indication;

Step S1404: said STA utilizes said first transfer resource to send second transmission resource request;

Step S1405: said CAP receives said second transmission resource request, for the STA of correspondence distributes second transfer resource;

Step S1406: said CAP sends second transmission resource request and replys the STA to said correspondence, carries the indication of second transfer resource during said second transmission resource request is replied;

Step S1407: said STA receives said second transmission resource request and replys;

Step S1408: said STA utilizes said second transfer resource to send data.

It initiatively is that STA distributes first transfer resource that the embodiment of the invention adopts polling mode by CAP; Thereby make STA can utilize first transfer resource to initiate resource request; Solved well when request transmitting uplink data resource, how to have got access to the problem of the required transfer resource of the request of sending the request uplink transmission data.

Preferably, CAP can be according to preset poll strategy poll STA:

For example, the poll order can be set, poll parameters such as polling interval, resource allocation condition, and poll STA according to this.Resource allocation condition is set in the embodiment of the invention is all STA that are polled to Resources allocation all.

Preferably, whether said poll strategy: judging currently has transfer resource can supply to distribute if can also being set to; Current have transfer resource can supply the branch timing, starts the poll step.Thereby having transfer resource can supply the branch timing, initiatively is the STA allocation of transmission resources by CAP just, need not STA goes for to ask again, and has reduced the reciprocal process in the resource request process, can the whole resource request speed of elevator system.

Said CAP can trigger the judgement to current assignable bandwidth resources according to predetermined rule, for example can be periodically judgement, real-time judge, perhaps when meeting some condition, judge that the present invention does not limit at this.

Said CAP is for after said STA distributes first transfer resource, can send said the replying to said STA of first transfer resource indication of carrying with the mode of clean culture.

Preferably, said CAP can distribute indication through the transmitting control channel down distributing resource after distributing first transfer resource for said STA.That is, said CAP can send on transmitting control channel and carry replying of first transfer resource indication.Correspondingly, said STA will receive said the replying of first transfer resource indication of carrying on said transmitting control channel, therefrom be known as first transfer resource of its distribution.Certainly, in another embodiment, can design through other channels yet and issue said the replying of first transfer resource indication of carrying, the present invention does not limit at this.

Preferably, the embodiment of the invention provides a kind of form of second transmission resource request, supports to report institute's requested resource based on Business Stream.Wherein, comprise the sign of the STA that initiates said second transmission resource request in said second transmission resource request, the sign of one or more Business Stream, and the size of the bandwidth resources of each Business Stream needs.CAP can be known each Business Stream of said STA through resolving said second transmission resource request, and the resource requirement situation of said each Business Stream.

The type of optional bandwidth resources can comprise:

Preferably, the embodiment of the invention also provides a kind of bandwidth resources method for expressing, through the design resource table, indicates the size of the bandwidth resources of being asked with said bandwidth resources index in preset resource table.Thereby when reporting the bandwidth resources that need; Only need carry said bandwidth resources and get final product, especially when the bandwidth resources of asking are big, substitute concrete bandwidth resources numerical value with index value corresponding to the index value in the resource table; To significantly reduce shared bit, practice thrift transfer resource.Can be referring to shown in the table 3.

In the embodiment of the invention, said second transmission resource request can be carried in the resource request frame sends.The embodiment of the invention is an example with the above-mentioned mode that reports based on Business Stream, has provided a kind of concrete resource request frame structure, and is as shown in Figure 8, comprises frame head, payload and check information part (FCS).Comprise frame control information in the frame head, for example frame type (being management frames), subtype (resource request frame), version information etc. here; Comprise STAID, FID number in the payload, and the bandwidth resources solicited message of one or more Business Stream, wherein, comprise FID, the type of resource table, the RES-R of said Business Stream in the bandwidth resources solicited message of each Business Stream.Wherein, RES-R representes the index of bandwidth resources in resource table of being asked.Among Fig. 8, be type identification resource table, for example with resource table; Definition list 3 is the resource table of non-expansion; Table 4 is the resource table of expansion, and the type field of resource table is the resource table that non-expansion is used in 0 expression, and the type field of resource table is the resource table that expansion is used in 1 expression; Certainly can adopt other mode identifying resource tables in another embodiment, the present invention does not limit at this yet.In addition, in the time can supporting to distribute dissimilar resources, when for example supporting increment and total amount resource allocation, the information of the resource type of this traffic request of indication can also be set in the bandwidth resources solicited message of said Business Stream.。

Preferably, said CAP can send second transmission resource request through transmitting control channel and reply, and wherein carries the indication of second transfer resource.Correspondingly, said STA will receive said second transmission resource request and reply on said transmitting control channel, therefrom be known as second transfer resource of its distribution.Certainly, in another embodiment, also can design through other channels, for example descending transmission channel issues said second transmission resource request and replys, and the present invention does not limit at this.

In order to realize that above-mentioned poll distributes, the embodiment of the invention also provides a kind of CAP that is used to realize resource allocation, and is shown in figure 15, comprising:

First resource distribution module is used at least one terminal STA of poll, for each STA that is polled to distributes first transfer resource;

First sending module is used to send the STA that is polled to said that replys that carries the indication of first transfer resource;

Second resource distribution module is used to receive second transmission resource request, for the STA of correspondence distributes second transfer resource;

Said second transfer resource is used for STA and sends data.

Preferably, the said second resource distribution module support is to the processing of the resource request that reports based on Business Stream.The said resource request that reports based on Business Stream comprises: comprise the sign of STA, the sign of one or more Business Stream in said second transmission resource request, and the size of the bandwidth resources of each Business Stream needs.Said second resource distribution module can be known each Business Stream of said STA through resolving said second transmission resource request, and the resource requirement situation of said each Business Stream.

The type that preferably, can also comprise the bandwidth resources of said each Business Stream needs in said second transmission resource request.Said second resource distribution module is supported the bandwidth resources type that STA is asked for the different service streams selection as required, and resource request is more flexible, and is more humane.

The type of optional bandwidth resources can comprise:

Preferably, said second resource distribution module is also supported the processing to the resource request that reports based on STA.The said resource request that reports based on STA comprises: comprise the sign of the STA that initiates said second transmission resource request in said second transmission resource request, and the size of total bandwidth resources of said STA needs.Said second resource distribution module can be known the resource requirement situation that said STA is total through resolving said second transmission resource request.

The type that preferably, can also comprise the bandwidth resources of said STA needs in said second transmission resource request.Said second resource distribution module supports STA to select the bandwidth resources type of being asked as required, and resource request is more flexible, and is more humane.

The type of optional bandwidth resources can comprise:

Preferably, can indicate the size of the bandwidth resources of being asked with the index of said bandwidth resources in preset resource table.

Preferably, said first sending module can send said the replying of first transfer resource indication of carrying on transmitting control channel.

Preferably, said first sending module can adopt mode of unicast to send said the replying of first transfer resource indication of carrying.

Preferably, said CAP also can comprise:

Judge module, whether current have transfer resource can supply distribute, if current have transfer resource can supply the branch timing, send instruction of resource allocation to said first distribution module if being used to judge.Said first distribution module, receive said instruction of resource allocation after, carry out poll.

The 4th embodiment

The embodiment of the invention also provides the method for another kind of resource allocation, initiatively is that STA divides the resource that is used in the transmission data by CAP, and is shown in figure 16, comprises step:

At least one STA of step S1601:CAP poll is for each STA that is polled to distributes first transfer resource;

Step S1602: said CAP sends the STA that is polled to said that replys that carries the indication of first transfer resource;

Step S1603: said STA receives and carries replying of first transfer resource indication;

Step S1604: said STA utilizes said first transfer resource to send data.

Be that with resource allocation methods difference among the 3rd embodiment CAP is that what distribute that the STA poll distributes directly is exactly the resource that is used to send data, does not need STA to initiate resource request again and obtains to have sent the resource of data.

In order to realize that above-mentioned poll distributes, the embodiment of the invention also provides a kind of CAP that is used to realize resource allocation, and is shown in figure 17, comprising:

Said first transfer resource is used for STA and sends data.

Preferably, said CAP also can comprise:

The 5th embodiment

The embodiment of the invention also provides the method for another resource allocation, initiatively is that at least one STA poll branch is used in the resource of sending resource request by CAP, and is specifically shown in figure 18, comprises step:

At least one STA of step S1801:CAP poll is for each STA that is polled to and arrives its resource allocation cycle distributes first transfer resource;

Step S1801～step S1808: with step S1401～step S1408, the concrete processing method of each step is the same, and the present invention repeats no more at this.

The above embodiment of the present invention has increased the monitoring to the STA resource allocation cycle on the basis of the 3rd embodiment poll allocative decision, be preferably the STA Resources allocation that reaches resource allocation cycle, thereby makes that the distribution of resource is more reasonable.

CAP safeguards the resource allocation cycle of STA, after distributing first transfer resource for STA, will recomputate resource allocation cycle for the STA that is assigned with first transfer resource.

When concrete the realization, said CAP can utilize timer to safeguard the resource allocation cycle of STA, and timer expiry thinks that then STA reaches the resources configured assignment period, is said STA Resources allocation, and restarts said timer; If not overtime, think that then said STA does not also reach the resources configured assignment period, be not said STA Resources allocation.

Preferably, according to the resource allocation cycle of the present type of service calculation of parameter STA of STA.Said type of service parameter comprises parameters such as priority, time delay budget, packet loss budget.Thereby can be purpose can satisfy business demand according to the actual needs setting of business, make that the distribution of resource is more reasonable.

In order to realize that above-mentioned poll distributes, the embodiment of the invention also provides a kind of CAP that is used to realize resource allocation, and is shown in figure 19, comprising:

First resource distribution module is used at least one terminal STA of poll, for each STA that is polled to and arrives its resource allocation cycle distributes first transfer resource;

Said second transfer resource is used for STA and sends data.

Preferably, said first resource distribution module also recomputates resource allocation cycle for the STA that is assigned with first transfer resource.

When concrete the realization, said first resource distribution module can utilize timer to safeguard the resource allocation cycle of STA, and timer expiry thinks that then STA reaches the resources configured assignment period, is said STA Resources allocation, and restarts said timer; If not overtime, think that then said STA does not also reach the resources configured assignment period, be not said STA Resources allocation.

Preferably, said first resource distribution module can be according to the resource allocation cycle of the present type of service calculation of parameter STA of STA.Said type of service parameter comprises parameters such as priority, time delay budget, packet loss budget.

The type of optional bandwidth resources can comprise:

Preferably, said CAP also can comprise:

The 6th embodiment

The embodiment of the invention also provides the method for another resource allocation, initiatively is that STA divides the resource that is used in the transmission data by CAP, and is shown in figure 20, comprises step:

At least one STA of step S2001:CAP poll is for each STA that is polled to and arrives its resource allocation cycle distributes first transfer resource;

Step S2002: said CAP sends the STA that is polled to said that replys that carries the indication of first transfer resource;

Step S2003: said STA receives and carries replying of first transfer resource indication;

Step S2004: said STA utilizes said first transfer resource to send data.

Be that with resource allocation methods difference among the 5th embodiment CAP is that what distribute that the STA poll distributes directly is exactly the resource that is used to send data, does not need STA to initiate resource request again and obtains to have sent the resource of data.

In order to realize that above-mentioned poll distributes, the embodiment of the invention also provides a kind of CAP that is used to realize resource allocation, and is shown in figure 21, comprising:

Said first transfer resource is used for STA and sends data.

Preferably, said CAP also can comprise:

The 7th embodiment

Above-mentioned first to the 6th embodiment of the present invention has provided several kinds of modes that STA obtains the required resource of uplink transmission data, comprising: competitive resource request mode (first embodiment), with road resource request mode (second embodiment), the poll method of salary distribution (the 3rd to the 6th embodiment).Wherein:

Competitive resource request mode and all be that wherein: competitive resource request mode is to obtain resource through the competitive way active request by STA, applicable to the available scene of no up transfer resource by STA initiation request initiatively with road resource request mode; With road resource request mode is by STA resource request information to be carried in the Frame; Send with uplink transmission data; More be applicable to the current scene that data upstream transmission is arranged, can reduce the interaction times of resource request, the resource allocation speed that elevator system is whole.It initiatively is the mode of STA Resources allocation by CAP that the poll method of salary distribution then provides a kind of; Need not initiatively initiation request of STA, can the reasonable analysis resource, but initiatively be the STA distribution in the time spent; Can reduce the interaction times of resource request, the resource allocation speed that elevator system is whole.Therefore, if can rationally, will reach more excellent effect according to concrete scene with these 3 kinds of resource distribution mode reasonable combination.The embodiment of the invention provides a kind of mode of reasonable combination at this, as follows:

CAP will be the STA Resources allocation initiatively when available resources are arranged, and STA can utilize said uplink transmission resource to send resource request after knowing that CAP is the resource of its distribution, perhaps directly sends data; When CAP was not the STA Resources allocation, if current do not have a uplink transmission resource, the suitable competitive way that adopts of STA was initiated resource request; If current have a uplink transmission resource, suitablely adopt associated mode that resource request is carried in the Frame to send.

Preferably, embodiment of the invention designs C AP divides to STA and is used in the required resource of uplink transmission data and is based on that STAID realizes, promptly CAP is according to STA requested resource (based on the FID request or based on the STA request); Be calculated as total resource that STA distributes, the STA side then transferred in the distribution of resource between Business Stream accomplished, promptly; STA is after being known as total resource of its distribution; To pass through internal schedule, between Business Stream, carry out secondary distribution, be about to transfer resource and between a plurality of Business Streams, distribute; Afterwards, control said a plurality of Business Stream respectively at the transfer resource transmitting data of correspondence.The said mode that resource is distributed between Business Stream can be provided with as required, for example according to priority, divide equally or the like, the present invention does not limit at this.Adopt above-mentioned double distribution method, simplified the operation of CAP side, share part resource allocation work by the STA side; As far as many STA system, the whole resource allocation speed of elevator system greatly, and; STA can for example be provided with service priority according to the strategy of Demand Design resource allocation, thereby makes resource allocation more flexible; Can satisfy requirements of different users, the user experience effect is better.

Preferably, said STA judges also whether the resource of said distribution satisfies the demands after being known as the resource of its distribution; If satisfy the demands; Then utilize said transfer resource to send data to be sent,, then utilize said transfer resource to send the partial data in the data to be sent if do not satisfy the demands; According to the bandwidth resources of current needs, carry out resource request once more simultaneously.When carrying out resource request once more, owing to there is upstream data to send, therefore, preferable way is to adopt and realize resource request with road resource request mode.

Can be with the resource of distributing and institute's requested resource comparison, satisfy the demands judging whether, if less than requested resource, then thinking, the resource of said distribution do not satisfy the demands, otherwise, think to satisfy the demands.

Preferably, in the preset time range of said STA after sending a request message,, then think this request failure, will carry out resource request once more if do not receive corresponding replying.When adopting competitive resource request mode request resource; CAP is after receiving second transmission resource request; Also can echo reply (ACK) message; STA has received said second transmission resource request with notice, in the preset time range of STA after sending first transmission resource request, does not reply if receive first transmission resource request; Perhaps in the preset time range after sending second transmission resource request,, then think this request failure, will carry out resource request once more if do not receive corresponding ACK message.When adopting when realizing resource request with road resource request mode, in the preset time range after the Frame of resource request information is carried in transmission,, then think this request failure if do not receive corresponding replying, will carry out resource request once more.Carry out the concrete mode of resource request at this, also confirm, if current do not have uplink transmission resource, a suitable competitive way initiation resource request that adopts of STA according to scene at that time; If current have a uplink transmission resource, suitablely adopt associated mode that resource request is carried in the Frame to send.

According to said disclosed embodiment, can be so that those skilled in the art can realize or use the present invention.The scheme that STA provided by the invention obtains transfer resource not merely is limited to the short-distance and medium-distance wireless communication system; To those skilled in the art; The various modifications of these embodiment are conspicuous, and the general principles of definition here also can be applied to other embodiment on the basis that does not depart from the scope of the present invention with purport.Above-described embodiment is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a method that is used for resource request is characterized in that, comprising:

Send first transmission resource request;

Utilize said second transfer resource to send data.

2. the method for claim 1 is characterized in that:

3. a method that is used for resource request is characterized in that, comprising:

Said second transfer resource is used for STA and sends data.

4. like any one described method among the claim 1-3, it is characterized in that:

5. like any one described method among the claim 1-4, it is characterized in that:

6. method as claimed in claim 4 is characterized in that:

7. method as claimed in claim 5 is characterized in that:

8. like any one described method in the claim 1 to 7, it is characterized in that:

Said first transmission resource request is replied on transmitting control channel and is sent.

9. like any one described method in the claim 1 to 8, it is characterized in that:

Said first transmission resource request is replied and is adopted broadcast mode to send.

10. like any one described method among the claim 1-9, it is characterized in that:

Said second transmission resource request is replied on transmitting control channel and is sent.

11., it is characterized in that like any one described method among the claim 1-10:

Said second transmission resource request is replied and is adopted mode of unicast to send.

12., it is characterized in that like any one described method among the claim 1-11:

13., it is characterized in that like any one described method among the claim 1-12:

The sign that comprises one or more Business Stream in said second transmission resource request, and the size of the bandwidth resources of each Business Stream needs.

14. method as claimed in claim 13 is characterized in that:

The type that also comprises the bandwidth resources of each Business Stream needs in said second transmission resource request.

15. method as claimed in claim 14 is characterized in that, the type of said bandwidth resources comprises:

16., it is characterized in that like any one described method among the claim 1-12:

17. method as claimed in claim 16 is characterized in that:

18. method as claimed in claim 17 is characterized in that, the type of said bandwidth resources comprises:

19., it is characterized in that like any one described method among the claim 13-18:

20., it is characterized in that like any one described method in the claim 19:

21. a method that is used for resource request is characterized in that, comprising:

Generate transmission resource request, comprise the sign of STA, the sign of one or more Business Stream in the said transmission resource request, and the size of the bandwidth resources of each Business Stream needs.

22. method as claimed in claim 21 is characterized in that:

23. method as claimed in claim 22 is characterized in that, the type of said bandwidth resources comprises:

24. a method that is used for resource request is characterized in that, comprising:

Generate transmission resource request, comprise the size of total bandwidth resources of the sign of STA, said STA needs in the said transmission resource request;

Send said transmission resource request.

25. method as claimed in claim 24 is characterized in that:

26. method as claimed in claim 25 is characterized in that, the type of said bandwidth resources comprises:

27., it is characterized in that like any one described method among the claim 21-26:

28. method as claimed in claim 27 is characterized in that:

29. a terminal STA that is used for resource request is characterized in that, comprising:

First sending module is used to send first transmission resource request;

30. STA as claimed in claim 29 is characterized in that:

31. STA as claimed in claim 29 is characterized in that:

32. STA as claimed in claim 30 is characterized in that:

33. STA as claimed in claim 31 is characterized in that:

34., it is characterized in that like any one described STA in the claim 29 to 33:

35., it is characterized in that like any one described STA among the claim 29-34:

36., it is characterized in that like any one described STA among the claim 29-35:

37., it is characterized in that like any one described STA in the claim 29 to 36:

38. STA as claimed in claim 37 is characterized in that:

39. STA as claimed in claim 38 is characterized in that, the type of said bandwidth resources comprises:

40., it is characterized in that like any one described STA in the claim 29 to 36:

41. STA as claimed in claim 40 is characterized in that:

42. STA as claimed in claim 41 is characterized in that, the type of said bandwidth resources comprises:

43., it is characterized in that like any one described STA among the claim 37-42:

44., it is characterized in that like any one described STA in the claim 43:

45. like any one described STA among the claim 29-44, it is characterized in that, also comprise:

46. a central access point CAP who is used for resource request is characterized in that, comprising:

Said second transfer resource is used for STA and sends data.

47. CAP as claimed in claim 46 is characterized in that:

48. CAP as claimed in claim 46 is characterized in that:

49. CAP as claimed in claim 47 is characterized in that:

50. CAP as claimed in claim 48 is characterized in that:

51., it is characterized in that like any one described CAP among the claim 46-50:

52., it is characterized in that like any one described CAP among the claim 46-51:

53., it is characterized in that like any one described CAP among the claim 46-52:

54., it is characterized in that like any one described CAP among the claim 46-53:

55., it is characterized in that like any one described CAP among the claim 46-54:

56., it is characterized in that like any one described CAP among the claim 46-55:

57. CAP as claimed in claim 56 is characterized in that:

58. CAP as claimed in claim 57 is characterized in that, the type of said bandwidth resources comprises:

59., it is characterized in that like any one described CAP among the claim 44-55:

60. CAP as claimed in claim 59 is characterized in that:

61. CAP as claimed in claim 60 is characterized in that, the type of said bandwidth resources comprises:

62., it is characterized in that like any one described CAP among the claim 46-61:

63., it is characterized in that like any one described CAP in the claim 62: