CN103609189A

CN103609189A - Method and device for accessing wireless network

Info

Publication number: CN103609189A
Application number: CN201280012672.3A
Authority: CN
Inventors: 鲍东山; 姚惠娟; 周玉宝; 于晓燕; 雷俊; 刘慎发; 王竞; 潘立军; 闫志刚
Original assignee: Beijing Nufront Wireless Tech Co ltd
Current assignee: Beijing Nufront Wireless Tech Co ltd
Priority date: 2011-03-31
Filing date: 2012-03-07
Publication date: 2014-02-26
Anticipated expiration: 2032-03-07
Also published as: WO2012130025A1; CN103609189B; CN102625464A

Abstract

Disclosed is a method for accessing a wireless network, comprising: sending a terminal basic capability negotiation request to a central access point CAP; and receiving a terminal basic capability negotiation response sent by the CAP and carrying working sub-channel mapping information, the working sub-channel mapping information indicating a target sub-channel to which a station STA is to be switched. Further disclosed are a terminal side device and a network side device for accessing the wireless network.

Description

Method and device for accessing wireless network

It it is on March 31st, 2011 this application claims the applying date, a kind of Application No. 201110081288.6, entitled priority of the Chinese patent application of wireless communications method, the full content of the earlier application has embodied in this application.

It it is on March 31st, 2011 this application claims the applying date, Application No. 201110081193.4, a kind of priority of the Chinese patent application of entitled " wireless communications method, system and equipment ", the full content of the earlier application has embodied in this application.

It it is on May 19th, 2011 this application claims the applying date, a kind of Application No. 201110130194.3, the priority of the Chinese patent application of entitled " communication system ", the full content of the earlier application has embodied in this application.

It it is on July 6th, 2011 this application claims the applying date, Application No. 201110188873.6, the priority of the Chinese patent application of entitled " being used for the method and device for accessing wireless network ", the full content of the earlier application has embodied in this application.

It it is on 2 16th, 2012 this application claims the applying date, Application No. 201210035553.1, the priority of the Chinese patent application of entitled " being used for the method and device for accessing wireless network ", the full content of the earlier application has embodied in this application.

It it is on 2 29th, 2012 this application claims the applying date, Application No. 201210050568.5, the priority of the Chinese patent application of entitled " being used for the method and device for accessing wireless network ", the full content of the earlier application has embodied in this application.Technical field

The present invention relates to wireless communication field, the more particularly to method and device for accessing wireless network.Background technology

In recent years, wireless communication system is developed rapidly, such as wireless local area network technology WiFi based on 802.11 standards, based on 802.15 bluetooth（Bluetooth) system and by GSM ^ " it is raw and Lai towards Femto technologies of indoor application etc., be obtained for and be widely applied.

It is now using a kind of most wide wireless network transmission technology based on 802.11 WiFi technology.Because WiFi system employs carrier sense/conflict avoidance（CSMA/CA, Carrier Sense Multiple Access with Collision Avoidance) mechanism, system effectiveness compared with ^ [third constellations, it is larger to Radio Resource-waste.The basic reason for causing this problem is that CSMA/CA mechanism is a kind of based on the random multi-access channel mechanism striven unexpectedly, central access point（CAP, Access Point) and website（STA, Station) between, or between difference STA, the right to use of Radio Resource can be striven unexpectedly by CSMA/CA mechanism, while striving wireless channel unexpectedly, now just collided, cause the waste of Radio Resource.In order to avoid collision, CSMA/CA mechanism requires that CAP or STA needs random back when striving wireless channel unexpectedly, and when all CAP and STA keep out of the way, though wireless channel is available free, and is not used by, this is also the significant wastage to wireless channel.For these reasons, 802.11 system effectivenesies are relatively low.For example：802. l lg system physical layers peak rates are up to 54Mbps, but TCP layer achievable rate under big data bag downloading service is not higher than 30Mbps.Although there is disadvantages mentioned above, 802.11 systems flexibly, independent of centralized Control mechanism, therefore can also realize relatively low equipment cost.

Femto technologies based on 3GPP standards be from GSM evolution come a kind of new technology towards in-door covering.Based on the data statistics to 3G systems, about 70% data service all occurs indoors, therefore indoor high-speed rate data access scheme is just particularly important.Femto base stations, are referred to as micro, slight Base station, compact, deployment is flexible.Because from GSM evolution, Femto base stations almost inherit all features of GSM.Femto equipment is to combine its limited coverage, the application scenarios feature such as less accessing user, equipment disposal ability is reduced, and then reduce equipment cost.Consider from duplex mode, identical with GSM, Femto base stations can be divided into FDD and the duplexing mechanism of the classes of TDD two.FDD up-downgoings carrier resource is symmetrical, and the asymmetrical service feature of data service up-downgoing data traffic causes FDD system when facing data service in the presence of certain wasting of resources.TDD system uplink downlink is operated on same carrier wave, different Radio Resources is distributed for uplink downlink by dividing time resource, therefore can preferably be adapted to the asymmetrical data service of up-downgoing business demand compared with FDD.However, GSM（Including Femto systems）TDD duplex modes, up-downgoing resource static allocation, in face of the different Various types of data business of demand, for example：Browse webpage, mobile video, moving game etc., it is difficult to realize the dynamic adaptation that business demand is divided with resource.Compared with Wi-Fi, because Femto employs the centralized Control mechanism based on scheduling, it is not present between base station or CAP and terminal or terminal due to striving conflict and waste of radio resources caused by random back unexpectedly, therefore link efficiency is higher.

For wireless communication system, there is the demand of access wireless network.The content of the invention

First purpose of the present invention is to provide the method for accessing wireless network.

Second object of the present invention is to provide end side device and network side apparatus for accessing wireless network.

There is a basic understanding for some aspects of the embodiment to disclosure, shown below is the summary of cylinder list.The summarized section is not extensive overview, nor to determine key/critical component or describe the protection domain of these embodiments.Its sole purpose is that some concepts are presented with the form of cylinder list, and bright preamble is described in detail in this, as commenting below.

The technical proposal of the invention is realized in this way：

A kind of method for accessing wireless network, this method includes：

The uplink transmission resource distributed using central access point CAP, is sent terminal basic capability negotiating to the CAP and asked；

The terminal basic capability negotiating response for the carrying work subchannel mappings information that the CAP is sent is received, the work subchannel mappings information indicates the site STA target subchannel to be switched.

In a kind of embodiment, in addition to：It is properly received after the terminal basic capability negotiating response, sends and confirm to the CAP.

In a kind of embodiment, in addition to：The distribution for receiving the uplink transmission resource is indicated.

Optionally, in addition to：Setting frame number is waited after the completion of the random access procedure performed before sending the request of terminal basic capability negotiating, is indicated if not receiving the distribution, re-executes the random access procedure.

In a kind of embodiment, in addition to：Setting frame number is waited after the request of terminal basic capability negotiating is sent, if not receiving the terminal basic capability negotiating response, the random access procedure before sending the request of terminal basic capability negotiating is re-executed.

In a kind of embodiment, the terminal basic capability negotiating response also carries spectrum aggregating pattern information and/or formal mark；

The spectrum aggregating pattern information, indicates the relation between multiple target subchannels；The formal mark that the STA is formally designated in the range of the CAP.

In a kind of embodiment, the maximum of the STA is carried in the terminal basic capability negotiating request.

Optionally, the available subchannel informations of the STA are also carried in the terminal basic capability negotiating request. A kind of method for accessing wireless network, this method includes：

Receive the terminal basic capability negotiating request that STA is sent using the uplink transmission resource of distribution；The terminal basic capability negotiating response for carrying work subchannel mappings information is sent to the STA, the work subchannel mappings information indicates the STA target subchannels to be switched.

In a kind of embodiment, in addition to：Receive the confirmation that the STA is sent after the terminal basic capability negotiating response is properly received.

Optionally, in addition to：Wait setting frame number, if not receiving the confirmation, terminate flow after the terminal basic capability negotiating response is sent.

Optionally, in the setting frame number, resend the terminal basic capability negotiating to the STA and respond.

In a kind of embodiment, in addition to：Distribute the uplink transmission resource, and send to the STA instruction of the uplink transmission resource.

The spectrum aggregating pattern information, the relation between multiple target subchannels is determined for the STA；

It is described to be formally designated the formal mark that the STA is distributed in own range.

In a kind of embodiment, the maximum of the STA is carried in the terminal basic capability negotiating request；

Also include：Determine the work subchannel mappings information；

The bandwidth sum for the target subchannel that the work subchannel mappings information is indicated, less than or equal to the maximum of the STA.

Optionally, in addition to：Adjust the maximum of the STA；

The bandwidth sum for the target subchannel that the work subchannel mappings information is indicated, less than or equal to the maximum of the STA after adjustment.

Optionally, the available subchannel informations of the STA are also carried in the terminal basic capability negotiating request；

In the target subchannel that the work subchannel mappings information is indicated, include one or more available subchannels of the STA.

In a kind of embodiment, the work subchannel mappings information indicates one or more target subchannels using bit map.

A kind of end side device for being used to access wireless network, the device includes：

Capability negotiation request unit, for the uplink transmission resource distributed using CAP, is sent terminal basic capability negotiating to the CAP and asked；

Capability negotiation responds receiving unit, and the terminal basic capability negotiating response for receiving the carrying work subchannel mappings information that the CAP is sent, the work subchannel mappings information indicates the STA target subchannels to be switched.

In a kind of embodiment, the device also includes：Confirmation unit, for after capability negotiation response receiving unit is properly received the terminal basic capability negotiating response, sending and confirming to the CAP.

In a kind of embodiment, the distribution that the Capability negotiation request unit further receives the uplink transmission resource is indicated.

Optionally, the device also includes：First trigger element, for completing to monitor the Capability negotiation request unit in the setting frame number after operation in random access terminal side device, if the Capability negotiation request unit does not receive the distribution and indicated, triggering random access terminal side device re-executes operation.

In a kind of embodiment, the device also includes：Second trigger element, the capability negotiation sound is monitored for being sent in the Capability negotiation request unit in the setting frame number after the terminal basic capability negotiating request Receiving unit is answered, if capability negotiation response receiving unit is not received by the terminal basic capability negotiating response, triggering random access terminal side device re-executes operation.

The spectrum aggregating pattern information, for indicating the relation between multiple target subchannels；It is described to be formally designated the formal mark that the STA is distributed in the range of the CAP.

In a kind of embodiment, the device also includes：

Configuration parameter provides unit, for the maximum of the STA to be supplied into the Capability negotiation request unit, is sent for it in the request of terminal basic capability negotiating.

Optionally, the configuration parameter provides unit, is additionally operable to the available subchannel informations of the STA being supplied to the Capability negotiation request unit, is sent for it in the request of terminal basic capability negotiating.

A kind of network side apparatus for being used to access wireless network, the device includes：

Capability negotiation request receiving unit, receives the terminal basic capability negotiating request that STA is sent using the uplink transmission resource of distribution；

Capability negotiation response unit, sends to the STA and carries the response of work subchannel mappings information terminal basic capability negotiating, and the work subchannel mappings information indicates the STA target subchannels to be switched.

In a kind of embodiment, the device also includes：Confirm receiving unit, the confirmation sent after the terminal basic capability negotiating response is being properly received for receiving the STA.

Optionally, the device also includes：Monitoring unit, the confirmation receiving unit is monitored for being sent in the capability negotiation response unit in the setting frame number after the terminal basic capability negotiating response, if the confirmation receiving unit does not receive the confirmation, trigger the Capability negotiation request unit and the capability negotiation response unit terminates this operation.

Optionally, before being triggered by the monitoring unit, the capability negotiation response unit resends the terminal basic capability negotiating to the STA and responded.

In a kind of embodiment, the device also includes：Resource allocation unit, the uplink transmission resource of terminal basic capability negotiating request is sent for being distributed for the STA, and sends the distribution instruction of the uplink transmission resource.

In a kind of embodiment, the device also includes：Spectrum aggregating pattern information provides unit and/or formally identifies allocation unit；

The spectrum aggregating pattern information provides unit, for the spectrum aggregating pattern information of the relation between the multiple target subchannels of instruction to be supplied into the capability negotiation response unit, is sent for its carrying in the response of terminal basic capability negotiating；

The formal mark allocation unit, is sent to the capability negotiation response unit for distributing a formal mark in own range to the STA, and by the formal mark, is sent for its carrying in the response of terminal basic capability negotiating.

In a kind of embodiment, also include in the device：Worked subchannel mappings information determination unit, and the capability negotiation response unit is sent to for determining the work subchannel mappings information, and by the work subchannel mappings information, is sent for its carrying in the response of terminal basic capability negotiating；

Optionally, the work subchannel mappings information determination unit also adjusts the STA carried in the terminal basic capability negotiating request maximum；

The bandwidth sum for the target subchannel that the work subchannel mappings information is indicated, less than or equal to the maximum of the STA after adjustment. Optionally, in the target subchannel that the work subchannel mappings information is indicated, STA one or more available subchannels are included.

It can be seen that, the present invention also indicates the STA target subchannels to be switched to while capability negotiation is carried out, i.e., STA is carried out channel switching while capability negotiation, and on the basis of operating process is saved, balancing makes the load in each subchannel.

For above-mentioned and related purpose, one or more embodiments include the feature that will be explained in and be particularly pointed out in the claims below.Following explanation and accompanying drawing, which is commented, describes bright some illustrative aspects in detail, and some modes in the only utilizable various modes of principle of each embodiment of its instruction.Other benefits and novel features are by as following detailed description is considered in conjunction with the accompanying and becomes obvious, and the disclosed embodiments are to include all these aspects and they are equal.Brief description of the drawings

Fig. 1 is the method flow diagram of access wireless network in the present invention；

Fig. 2 is the method flow diagram of capability negotiation in the present invention；

Fig. 3 is the reference model of EUHT systems；

Fig. 4 constitutes for the access system of EUHT systems；

Fig. 5 is the process schematic sent and received of protocol data between STA and CAP；Fig. 6 is the method flow diagram of acquisition system synchronization in the embodiment of the present invention；

Fig. 7 be the embodiment of the present invention in keep synchronous method course diagram；

Fig. 8 is the method flow diagram of Stochastic accessing in the embodiment of the present invention；

Fig. 9 is the schematic diagram of transmission random access sequence in the embodiment of the present invention；

Figure 10 a 10c are the form of uplink random access channel in the embodiment of the present invention；

Figure 11 is the method flow diagram of capability negotiation in the embodiment of the present invention；

Figure 12 is the structural representation of the terminal side equipment of access wireless network in the present invention；

Figure 13 is a kind of structural representation of the device of acquisition system synchronization in the embodiment of the present invention；Figure 14 is another structural representation of the device of acquisition system synchronization in the embodiment of the present invention；Figure 15 is the structural representation of the first random access terminal side device in the embodiment of the present invention；Figure 16 is the structural representation of capability negotiation end side device in the embodiment of the present invention；

Figure 17 is the structural representation of the network side equipment of access wireless network in the present invention；

Figure 18 is the structural representation of the first random access radio network side device in the embodiment of the present invention；Figure 19 is the structural representation of capability negotiation network side apparatus in the embodiment of the present invention；

Figure 20 is a kind of flow chart for being used to access the method for wireless network in the present invention；

Figure 21 is another flow chart for being used to access the method for wireless network in the present invention；

The method that Figure 22 is used to access wireless network for another in the present invention.Embodiment

The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to put into practice them.Other embodiments can include structure, logic, electric, process and other changes.Embodiment only represents possible change.Unless explicitly requested, otherwise single component and function are optional, and the order operated can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The scope of embodiment of the present invention includes the gamut of claims, and claims all obtainable equivalents.Herein, these embodiments of the invention individually or can be represented generally with term " invention ", It is convenient that this is used for the purpose of, and if in fact disclosing the invention more than one, the scope for being not meant to automatically limit the application is any single invention or inventive concept.

Fig. 1 is accesses the method flow diagram of wireless network in the present invention, the flow includes：

Step 11:Obtain system synchronization.

Here acquisition system synchronization, including systematic parameter is obtained, equivalent to the process for carrying out system initialization.

Step 12:Stochastic accessing carries out capability negotiation to CAP, and with the CAP.

In this step, random access procedure is carried out based on the result performed in step 11, and capability negotiation procedure will be carried out using the result obtained after the completion of Stochastic accessing, and particular content will be described in detail hereinafter.

Operation is performed according to flow shown in Fig. 1, can be achieved to access wireless network in a wireless communication system.Refer to the concrete methods of realizing of capability negotiation procedure in the flow of above-mentioned access wireless network provided by the present invention for accessing the method for wireless network.

Fig. 2 is the method flow diagram of capability negotiation in the present invention, and the flow includes：

Step 21:The uplink transmission resource distributed using CAP, is sent terminal basic capability negotiating to CAP and asked.

Step 22:The terminal basic capability negotiating response for the carrying work subchannel mappings information that the CAP is sent is received, the work subchannel mappings information indicates the STA target subchannels to be switched.

The capability negotiation method that the present invention is provided, while capability negotiation is carried out, the STA target subchannels to be switched to also are indicated, i.e., STA is carried out channel switching while capability negotiation, on the basis of operating process is saved, the load in each subchannel is balanced.

In the embodiment of the present invention given below, using enhanced ultrahigh speed WLAN (EUHT) system that newly defines as application scenarios.Power system capacity greatly improved by technologies such as multi-channel transmission, multi-user's multiple-input, multiple-output (MU-MIMO) in EUHT.EUHT is also by using centralized dispatching mechanism, it is to avoid the collision eated dishes without rice or wine and keep out of the way, and can provide differentiated service to different business.EUHT systems can provide at least 1.2Gbps Annexation amounts of telling, to meet requirement of the active user to wireless network data transmission rate.

Fig. 3 is the reference model of EUHT systems.

System reference model shown in Fig. 3 is primarily referred to as air interface reference model, including：Medium education（MAC) layer and physics（PHY) layer, each layer major function cylinder state it is as follows：

1. MAC layer includes adaptation sublayer and media access control sublayer.

It is adapted to sublayer：It is main that external network data and MAC layer service agreement unit are provided（MSDU the function of mapping and conversion between).MSDU refers to MAC service accessing points（SAP the information delivered between) as unit.

Media access control sublayer：In addition to taking on medium education function, in addition to the management and control to system and the support of the specific function to PHY layer.

2. PHY layer：It is main to provide mac-layer protocol data cell（MPDU the PHY transmission mechanisms of corresponding physical channel, such as OFDM) are mapped to（) and multiple-input, multiple-output OFDM（MIMO) technology.MPDU services exchanged data cell using PHY layer between referring to two peer MAC entities.

Fig. 4 constitutes for the access system of EUHT systems, including central access point（CAP) and website (STA), wherein STA can be various data equipments, for example：PDA, notebook, camera, ability Nie camera, mobile phone, tablet personal computer, pad etc..As shown in figure 3, STA1 and STA2 by air interface protocol access CAP, CAP by it is wired or wirelessly with existing external network (such as net of IP bones thousand, Ethernet）Set up communication.Wherein CAP agreement composition includes MAC layer and PHY layer.STA agreements composition includes application（Application) layer, transmission control（TCP) layer, network（IP) layer, MAC layer and PHY layer. Based on the agreement composition shown in Fig. 4, Fig. 5 gives the process sent and received of protocol data between STA and CAP, for example：STA wants to send data to CAP, and STA is first by application data（Such as VoIP, video etc.）Handle and pack by application layer, TCP/IP layer, IP adaptation sublayers are sent in the form of IP is grouped, changed and mapped by IP adaptation sublayers, it is sent to media access control sublayer, MAC sublayers are by the operation such as burst, encryption, framing, polymerization, PHY layer is issued, is finally mapped on wireless channel and carried out data transmission by PHY.

The abnormality processing being related in Examples below is also possible to use system set-up parameters as shown in table 1, and unified introduction is provided here.Table 1

As a kind of optional embodiment, the step of acquisition system synchronization in flow shown in Fig. 1, that is, walking 11 can be realized by following sub-step：

Sub-step 1:Physical frame is found on current sub-channel.

Sub-step 2:Parse the system information channel in the physical frame searched out（SICH) and control channel (CCH), the SICH indicates the structure of the physical frame, and the CCH indicates the distribution of system resource.

The method for being used to access wireless network in the present invention, for Physical Frame Structure can the situation of dynamic configuration propose that the SICH in physical frame indicates the structure configuration of physical frame, for example, indicate the presence or absence of each channel and duration in physical frame.

CCH in physical frame indicates the distribution of system resource, including the instruction for the resource distributed for systematic parameter.

Sub-step 3:Using analysis result, systematic parameter is obtained from physical frame.

It can be seen that, provided by the present invention for accessing in the method for wireless network, for Physical Frame Structure can the situation of dynamic configuration realize acquisition system synchronization.

In EUHT systems, STA and CAP can support 20MHz, 40MHz and 80MHz, and the list of system predetermined channel indicates that in the subchannel of system, these subchannels one or more CAP work subchannel can be included.

Following table 2 gives a kind of citing of predetermined channel list under 2.4GHz frequency ranges.

Table 2

Channel number centre carrier frequency（ MHz ) 1 2412

2 2417

3 2422

4 2427

5 2432

6 2437

7 2442

8 2447

9 2452

10 2457

11 2462

12 2467

13 2472 Fig. 6 is are used for the method flow diagram for accessing wireless network in the embodiment of the present invention, this method includes obtaining synchronous flow, and the flow of the acquisition synchronization includes：

Step 61:Physical frame is found on current sub-channel, specifically, judging the frame head of physical frame whether is detected on current sub-channel, if, step 62 is performed, detection is otherwise continued executing with, until when exceeding the stand-by period of subchannel, being transferred to next sub-channels and continuing executing with step 61.

Step 62:Judge whether to parse the SICH and CCH in physical frame, if it is, performing step 63, otherwise continue executing with step 61, until when exceeding the stand-by period of subchannel, being transferred to next sub-channels and continuing executing with step 61.

In the targeted physical frame of the present invention, targeting sequencing and SICH position and duration are preset, and without dynamic configuration, position adjacent after SICH CCH, CCH duration can be with dynamic configuration.

SICH indicates the structure configuration of physical frame, can specifically indicate the presence or absence of each channel and/or duration in present physical frame.For example, the channel fixed for some durations, 1 bit can be used to indicate the presence or absence of the channel in SICH, the implicit indication duration of the channel；For the unfixed channel of some durations, in SICH many bits can be used to be indicated, by taking CCH as an example, 6 bits can be used in SICH, maximum may indicate that 63 OFDM symbols, and 1 OFDM symbol is minimum resource allocation unit, such as this 6 bit is 010000, it is 16 to be converted to decimal number, that is, corresponds to 16 OFDM symbols.

Positions and duration of the CCH in physical frame can be determined by parsing SICH, then broadcast scheduling signaling is detected from the CCH in physical frame, to be detected as the resource of BCF distribution.Following table 3 shows one kind citing of broadcast scheduling signaling, transmitted in signaling/feedback channels of the BCF shown in table 3, signaling/feedback channel is included in transmission channel.It is defined as downlink signaling/feedback channel resources when taking 0000 to indicate, determines there are BCF frames if taking 0,_{6 5}— ₂The position of instruction resource, Κ,_ΊIndicate the length of resource.Table 3

Definition

Bit

It is descending up

Broadcast type

bi b₃ b₂B ,=0000, downlink signaling/feedback channel resources are indicated

b₃ b₂ b_x=0001, up signaling/feedback channel resources indicate b₇ b₆ b₅ b₄Identical signaling/feedback can be set in 20MHz subchannels Bitmap, many sub-channels Channel

Signaling/feedback channel resources block starting OFDM symbol, thresholding：1 511 reserve

The symbolic number that signaling/feedback channel takes, thresholding： 0-63

00:Form 1

Reserved 01:Form 2

10-11 :It is reserved

0:Downlink broadcast channel allocative efficiency；

1 :Downlink broadcast channel distribution is invalid

The signaling that downlink broadcast channel takes/

It is reserved

Feedback channel starting index, thresholding：

1〜32

The signaling that downlink broadcast channel takes/

Feedback channel number, thresholding： 1〜8

b … b₄₀It is reserved

B, b_1Q "b₅₆16 bit CRC are by the B STAID outstanding steps 63 that add 4:Judge whether to detect broadcast message frame（BCF), down-going synchronous is if it is realized, otherwise returns and performs step 61, until when exceeding the stand-by period of the subchannel, being transferred to next sub-channels and continuing executing with step 61.

BCF is broadcast configuration message, by CAP in all working subchannel periodic broadcast, wherein carrying CAP MAC Address so that STA recognizes BCF transmitting terminal.Carrying system parameter is gone back in BCF.

The systematic parameter that BCF is carried is potentially included to be terminated to play the various parameters of indicative function in other rear flows to networking follow-up process or networking.

Following table 4 gives a kind of citing of BCF frame carrying information.Table 4

A^- oneself, length (ratio

Remarks

It is special）

The CAP of CAP MAC Address 48 unique mark

The channel number minimum value that the CAP of working channel number 8 takes

2 bandwidth of operation for broadcasting CAP,

0 represents 20MHz;

Bandwidth of operation 1 shows 40MHz;

2 show 80MHz;

3 retain.

3 are used to indicate the most antenna configuration in CAP ends.

0 represents 1 antenna；

1 represents the 2 blunt antennas of；

The antenna 2 at CAP ends represents 3 antennas；

Configuration 3 represents the 4 blunt antennas of；

4 represent 5 antennas；

5 represent 6 antennas；

6 represent 7 antennas； 7 represent 8 antennas；

Reserved 3, default setting is 0

The effective length of 8 network alias fields, span 1-31, network alias length

Unit byte.

248 character strings started with letter or number, maximum length is 31 network alias

Byte.

64 provide the common clock in a CAP, for timestamp at the beginning of STA

The system synchronization of beginningization, unit us.

BCF intervals 16 indicate the time cycle that BCF frames occur, unit ms.Stochastic accessing, which keeps out of the way 4, is used for the control that Stochastic accessing keeps out of the way window, the min-window value scope 02 that minimum window takesⁿ- l

Dispatch request, which keeps out of the way 4, is used for the minimum window system of the control for keeping out of the way window based on the resource request striven unexpectedly, minimum window span 02ⁿ- 1

Stochastic accessing, which keeps out of the way 8, is used for the control that Stochastic accessing keeps out of the way window, the max-window value scope 02 that maximized window takesⁿ- l

Dispatch request, which keeps out of the way 8, is used for the maximized window system of the control for keeping out of the way window based on the resource request striven unexpectedly, maximized window span 02ⁿ- l

8 indicate the current transmission powers of CAP

The decimal number of field correspondence tape symbol is n,

CAP transmission powers

(negative fraction is represented n=- 128- 127 with complement form）：CAP transmission powers are n dBm.

Reserved 5, default setting is 0

Descending detecting pilot frequency 3

Indicating downlink detecting pilot frequency drawing indexing

Pattern

Position descending sounding channel of the 8 indicating downlink sounding channels in DL-TCH channels is put.The field correspondence decimal number be η, η=0 255, the descending sounding channel in position DL-TCH channels are divided into front and rear two parts, rear portion has η OFDM symbol.Demodulate the OFDM symbol number that pilot tone time domain ^ 7 demodulates pilot time i or interval（The short interval of interval 0 configuration)

Demodulate the OFDM symbol number that pilot tone time domain ^ 9 demodulates pilot time domain interval（The long interval of interval 1 configuration)

2 descending and up conversion time schemes

0:Protection interval is 2 OFDM symbol cycles；

DGI

1：Protection interval is 4 OFDM symbol cycles； 2〜3：Retain

2 up and descending conversion time schemes

0:Protection interval is 2 OFDM symbol cycles；

UGI 1：Protection interval is 4 OFDM symbol cycles（Processing delay)；

2〜3：Retain

2 00:Stochastic accessing form 1

UL-RACH 01 :Stochastic accessing form 2

Channel format 10:Stochastic accessing form 3

11 :Retain Reserved 10 default settings are 0 as shown in table 4, and the information carried in BCF can be divided into following a few classes：

I) CAP MAC Address, STA just blunt can recognize the CAP for sending BCF according to the MAC Address.2) CAP working channel number and bandwidth of operation, with reference to working channel number and bandwidth of operation here,

STA can determine to broadcast the CAP of the BCF other work subchannels in addition to currently detected BCF subchannel.

3) CAP antenna configuration, STA will use the parameter after access wireless network success.

4) network alias, indicates network name so that STA can select the network to be added.

5) network alias length, indicates the length of network alias field, and the length fixation of network alias field can save expense, reduction parsing deviation.

6) timestamp of system common clock is indicated, STA can adjust the clock of oneself according to the timestamp.

7) the BCF intervals of BCF broadcast cycles are indicated, STA after systematic parameter is obtained first, and STA needs to confirm that oneself keeps in touch with CAP all the time by constantly receiving SICH and BCF, and according to the BCF intervals, STA can periodically obtain BCF.

8) conflict avoidance parameter, including：The maximized window that the minimum window and dispatch request that the maximized window and dispatch request that the minimum window and Stochastic accessing that Stochastic accessing is kept out of the way are kept out of the way are kept out of the way are kept out of the way.The maximized window that the minimum window and Stochastic accessing that STA can evade according to Stochastic accessing are kept out of the way, when multiple STA are clashed in follow-up random access procedure, is kept out of the way.The maximized window that the minimum window and dispatch request that STA can also keep out of the way according to dispatch request are kept out of the way, when dispatch request is clashed, is kept out of the way.The method kept out of the way specifically is performed to be described in detail below.

9) CAP transmission power, after access wireless network success, STA is just blunt can to carry out open loop power control according to the transmission power.

10) physical frame structure parameters, including：

For indicating downlink and the DGI of up conversion time, for indicating the up UGI with descending conversion time;

Position for the descending sounding channel of original position of the indicating downlink sounding channel in descending transmission channel；

The descending detecting pilot frequency pattern indexed for indicating downlink detecting pilot frequency pattern picture；

And i or interval during demodulation pilot tone for indicating demodulation pilot time i or interval.

The physical frame structure parameters carried in BCF frames, the part-structure in physical frame is indicated, this part-structure will not typically change in dynamic configuration Physical Frame Structure, so carrying unified in BCF indicate, thus without repeating to indicate in the sich, SICH expense is saved.

I I) it is used to indicate that the uplink random of Stochastic accessing form accesses channel（UL-RACH) form.In the present invention form that different uplink randoms access channel is set for different Stochastic accessing distances, to support to cover farther distance, by indicating that uplink random accesses channel format in BCF so that STA selects the form matched with Stochastic accessing distance.

The just specific application demand of blunt evidence, CAP can carry one or several of information shown in table 4 in the BCF of generation, then broadcast the BCF of generation.

STA is obtained after systematic parameter on certain sub-channels, is transferred to next sub-channels and is continued executing with step 61, until being carried out all subchannels in channel list single pass, completes to obtain synchronous flow.

After every sub-channels in channel list are carried out overscanning, STA may obtain systematic parameter in one or more subchannels, the one or more subchannel is probably same CAP work subchannel, it is also possible to the work subchannel including different CAP.STA will obtain systematic parameter All subchannels therefrom select any one as the synchronous flow of subsequent execution holding and the subchannel of random access procedure as available subchannel, while also defining the CAP to be accessed.

The method of the present invention also includes keeping synchronous flow, including：Physical frame is continually looked in the subchannel selected；Parse the SICH and CCH in the physical frame searched out;BCF is detected from the physical frame searched out using analysis result, to obtain systematic parameter.

Specifically, Fig. 7 is the flow chart of STA holding synchronizations in the embodiment of the present invention.From figure 7 it can be seen that in synchronous flow is kept, setting SICH timers and BCF timers, STA continually looks for physical frame in the subchannel selected, and starts SICH timers and BCF timers.If successfully parsing SICH before SICH timer expiries, SICH timers are reset, if successfully be detected BCF before BCF timer expiries, BCF timers is reset and continually looks for physical frame in the subchannel selected.When any one time-out in the two timers but detects corresponding information not successfully, then it is assumed that STA step-outs, it is necessary to scan channel again.Here the channel of scanning again specifically includes the following two kinds implementation：

Firstth, using the subchannel selected as starting point, re-executed according to channel list and obtain synchronous flow, until being obtained on a sub-channels after systematic parameter, the subchannel that the subchannel alternatively goes out directly is performed to the flow for keeping synchronous again, if scanning arrives last subchannel of channel list still without available subchannel, the first sub-channels of channel list are continued to scan on；

Secondth, re-executed according to channel list and obtain synchronous flow, be all scanned equivalent to each channel in channel list, then select an available subchannel to perform the flow for keeping synchronous again.

Both the above implementation, can be applied in the following two kinds scene：

1) after the flow for obtaining synchronization terminates, an available subchannel is only determined；

2) after the flow for obtaining synchronization terminates, if it exceeds setting time, the available subchannel determined in the synchronous flow of the acquisition is not just considered further that, it is expired that such case is also referred to as channel list.

Certainly, both the above implementation, is not necessarily to apply in both scenes, any of which implementation can serve as set operator scheme.

As optional another implementation, the subchannel that STA can alternatively go out another available subchannel after step-out performs the flow for keeping synchronous again.This implementation, can be applied in following application scenarios：Obtain after synchronous flow terminates and determine available subchannel more than one, and present channel list is not out of date.Certainly, if the expired limitation of channel list is not present in system, this implementation can also be as set operator scheme, during the available subchannel more than one determined when performing obtain synchronous flow first, it is possible to use the operator scheme.

The timing length of SICH timers and BCF timers, just blunt can flexibly be set according to application demand.As can be seen that it is that STA constantly looks for physical frame, and constantly parsing SICH and the process for detecting BCF in the subchannel selected to keep synchronous.The structure of physical frame belonging to SICH is indicated, STA can be during synchronization be kept, using current SICH analysis result, between knowing at the beginning of next physical frame.

As a kind of optional embodiment, Fig. 8 is the method flow diagram of Stochastic accessing in the embodiment of the present invention, and the flow includes：

Step 81:In any one sub-channels random access sequence is sent to CAP.

The purpose for sending random access sequence is to ask to send the uplink transmission resource of random access request to CAP.

Here any one subchannel, after the flow for referring to foregoing acquisition system synchronization, the available subchannel determined by STA, the selection of the channel has arbitrariness, thus, multiple STA can be dispersed in different subchannels and send random access sequence, it is to avoid be striven unexpectedly in a sub-channels, the probability that conflict occurs is reduced, the success rate of access wireless network is improved.

The specific process by shown in Fig. 9 when sending random access sequence, CAP-MAC therein refers to Minimum 7 bit of CAP MAC Address, be PN sequence index (0≤<4), } it is cyclic shift parameter set, _/is cyclic shift parameter reference（ 0≤_/ < 8 ).Random access sequence is sent in the uplink random access channel in physical frame, and channel format is accessed using the uplink random indicated in BCF.

Figure 10 a Figure 10 c give the BCF provided in the form that optional three kinds of uplink randoms in the embodiment of the present invention access channel, corresponding table 4 citing, and the selection of uplink random access channel format includes following situation：

When indicating 00 in the UL-RACH channel format fields in BCF, using the channel format in Figure 10 a, { (5 during at an ancient type of spoons_CS} = {0 l.6us 3.2us 4 s 6Aus S.Ous 9.6us 1 1.2^} ;When indicating 01 in the UL-RACH channel format fields in BCF, using the channel format in Figure 10 b, es during it an ancient type of spoons }={ 0 3.2us 6Aus 9.6us };

When indicating 10 in the UL-RACH channel format fields in BCF, using the channel format in Figure 10 c, during it an ancient type of spoons = 0 6Aus } ₀

Step 82:CAP indicates the just blunt uplink transmission resource distributed according to random access sequence.

CAP indicates the uplink transmission resource of distribution using broadcast signaling, and such as table 5 below shows the citing of each bit and its instruction implication in the broadcast signaling.Wherein distribution 1 and distribution 2 corresponds to a STA respectively, exemplified by distributing 1, the value that STA passes through recognizes that broadcast type is to distribute resource for random access request frame, and minimum 3 bit of System Frame Number three that STA is indexed by random access sequence, random access sequence frequency-domain circular displacement index and Stochastic accessing occur searches the corresponding uplink transmission resource of oneself from broadcast signaling.

PN sequences in table 5 refer to random access sequence, and signaling/feedback channel is to be used to transmit signaling and the channel fed back in transmission channel.

Transmitting timing advance amount instruction STA in table 5 need to be timed amount in advance in up transmitting.STA is timed in advance when subsequently sending all uplink frames according to the transmitting Timing Advance.Table 5

71 70 " ' if the bit CRC of ^56 16 add 4 by B STAID, outstanding STA is sent after random access sequence; waited more than Stochastic accessing maximum and the resource allocation information that CAP indicates uplink transmission resource is not still received after frame period; then think this random access failure; need to re-start random access procedure, i.e., resend random access sequence in current sub-channel.

Used here as frame number timing, compared to using timer timing, timing is more accurate.

The above-mentioned time for resending random access sequence, keep out of the way relevant with Stochastic accessing.

Collision conflict is handled using binary exponential backoff algorithm, illustrates complete process flow by following steps：

SS1 :When STA sends random access sequence, set and keep out of the way window inside it equal to the minimum window CfF that the Stochastic accessing carried in BCF frames is kept out of the way_min；

SS2:STA sends random access sequence in the RACH of any one sub-channels；

SS3:The distribution information for the uplink transmission resource that STA is carried in the subsequent medium resource allocation informations for being ready to use in random access request of CCH, i.e., above-mentioned broadcast signaling；

SS4:If STA receives resource allocation information, processing procedure terminates, and represents unfulfilled and strives conflict； SS5:If waiting the resource allocation information not detected in frame period in CCH for random access request in Stochastic accessing maximum, STA thinks to strive conflict unexpectedly；

SS6:STA [will randomly choose backoff value between 0 S^ C^mJ（Keep out of the way window and be not more than maximum Backoff window）, it is a frame to keep out of the way unit, and wherein m shows number of retransmissions；

SS7:STA resends random access sequence after backoff counter is 0.

Above-mentioned tetra- steps of SS4-SS7 are repeated, until reaching Stochastic accessing maximum reattempt times.

Step 83:The uplink transmission resource distributed using CAP, random access request frame is sent to CAP.Random access request in the present invention is encapsulated in random access request frame and realized, the frame that following table 6 gives random access request frame carries a kind of citing of information.Table 6

As shown in table 6, the information that the frame of random access request frame is carried includes following several：

1) STA MAC Address so that CAP can recognize the STA for sending random access request frame;CAP will preserve the STA unique mark, in case being subsequently the STA temporary marks distributed in the range of CAP and formal mark.

2) CAP MAC Address so that CAP can recognize the receiving terminal that oneself is the random access request frame；

3) power contorl parameters, including：Power adjusts surplus and STA current transmission powers.STA will carry out close-loop power control, and adjusting flow often through single power realizes, the embodiment of the present invention carries in random access request frame Power Control this parameter, can make STA during Stochastic accessing with regard to progress close-loop power control.

STA can generate random access request frame, and carry the one or more of information shown in table 6, then send the random access request frame of generation.

If STA is after random access request frame is sent, accidental access response frame is not still received after waiting frame period more than accidental access response maximum, then think this random access failure, need to re-start random access procedure, re-execute step 81, random access sequence now is resend in current sub-channel, the time resend is relevant with the random back introduced above.

Step 84:Receive the accidental access response frame that CAP is sent.

CAP is that STA indicates to send the downlink transfer resource of accidental access response frame by broadcast signaling.Table 7 gives the citing of each bit and its instruction implication in the broadcast signaling.The distribution of distribution 13 in table 7 corresponds to a STA respectively, and exemplified by distributing 1, STA passes through ^.Identification broadcast type is to distribute resource for accidental access response frame, downlink transfer resource of minimum 3 bit of System Frame Number this three that STA is indexed by random access sequence, random access sequence frequency-domain circular displacement index and Stochastic accessing occur to determine the correspondence accidental access response frame of oneself.PN sequences in table 7, which refer to, transmits downlink signaling and the channel of the feedback for uplink service in random access sequence, signaling/feedback letter Dow Jones index descending transmission channel.Table 7

Bit definitions

Broadcast type

bA^bi^bo b₃b₂b、b₀=0101, accidental access response frame（Resource is distributed for accidental access response frame) bA^bA is reserved

Λ, PN sequence index, 03

b_nb_xA., PN sequences frequency-domain circular displacement rope 1

The cyclic shift 32 of 000 cyclic shift 0,001, the like the b of 111 cyclic shift 224 23 22 ' ' ',_sb、₄B, the System Frame Number most bit of 4 third constellations 3 that Stochastic accessing occurs

Distribution 1

b_2lb₂₀ - - -b_l6, it is that the resource of accidental access response distribution is indexed in the original position of signaling/feedback channel, thresholding span 1 63, thresholding is the 0 invalid instruction b of expression₂₃b₂2 ' reserve

b b ₄, PN sequence index, thresholding 03

b₂,b₂₁b₂₆, PN sequences frequency-domain circular displacement rope 1

The cyclic shift 32 of 000 cyclic shift 0,001, the like the b of 111 cyclic shift 224 39 38 ... 24_3lb₃₀b₂₉, minimum 3 bit of System Frame Number that Stochastic accessing occurs

Distribution 2

b₃₁b₃₆ - - -b₃₂, it is that the resource of accidental access response distribution is indexed in the original position of signaling/feedback channel, thresholding span 1 63, thresholding is the 0 invalid instruction b of expression₃₉b_3&, reserve b_4lb₄₀, PN sequence index, thresholding 03

b₄₄b₄₃b₄₂, PN sequences frequency-domain circular displacement rope 1

The cyclic shift 32 of 000 cyclic shift 0,001, the like the b of 111 cyclic shift 224₄₇b₄₆b₄₅, minimum 3 bit of System Frame Number that Stochastic accessing occurs

Distribution 3

BH, is that the resource of accidental access response distribution is indexed in the original position of signaling/feedback channel, and thresholding span 1 63, thresholding is the 0 invalid instruction b of expression₅₅, reserve

B, b_1Q "b₅₆16 bit CRC are encapsulated in accidental access response frame by the accidental access response in the B STAID outstanding the present embodiment that adds 4 and realized.The random access request frame that is provided in corresponding table 6 carries the citing of information, and the frame that following table 8 gives corresponding accidental access response frame carries a kind of citing of information.Table 8

As shown in table 8, the information carried in accidental access response frame includes following several：

1) STA MAC Address.STA if it find that the STA wherein carried MAC Address is mismatched with Self address, then resends random access sequence after accidental access response frame is received.

2) the temporary mark TSTA ID distributed in the range of CAP for STA, for before the success of access wireless network, distributing the formal mark in the range of CAP to STA, identify the STA, the uplink transmission resource that CAP distributes to STA for example can be identified using TSTA ID in the resource of capability negotiation stage indicates broadcast signaling.Because STA may can not be successfully accessed wireless network due to a variety of causes, so if being the formal mark that STA is distributed in the range of CAP in accidental access stage, resource is identified by wasting.In order to not only meet mark STA demand again not ' waste identify resource, here selection distributes temporary mark for STA, the temporary mark can correspond to a return period, it is more than the time needed for STA completions network the return period, assuming that STA fails in the follow-up process of access wireless network, then reach after return period, distributing to the temporary mark of the STA will be retracted. 3) power contorl parameters adjusted value, indicates what kind of adjustment STA should carry out to power contorl parameters.CAP determines the adjusted value according to the power contorl parameters carried in random access request, specifically, CAP determines power contorl parameters adjusted value according to the adjustment surplus carried in random access request.

4) state is accessed, STA successes is indicated or abandons.

CAP determines access state according to the measurement result of upward signal, such as can according to the signal quality of up channel information determine access state.

When signal quality within the acceptable range when, access state is defined as success by CAP.

When signal quality not within the acceptable range when, access state is defined as abandoning by CAP, this random access failure.

When access state indicates to abandon, TSTA ID are not carried in accidental access response frame, or TSTA ID are set to invalid data.

STA can generate accidental access response frame, and carry the one or more of information shown in table 8, then send the accidental access response frame of generation.

It is used as a kind of optional embodiment, if Power Control need not be carried out under some application scenarios, the power contorl parameters of such as STA in system are fixed, power contorl parameters need not be now carried in random access request, accordingly, CAP is also without determination power contorl parameters adjusted value.

In the embodiment of accidental access method of the present invention, CAP is after the random access sequence of STA transmissions is received, if waiting Stochastic accessing maximum to wait the random access request frame for not receiving STA transmissions after frame period, the corresponding all information of the STA can also be deleted, or delete the corresponding information of random access sequence of the STA.

As a kind of optional embodiment, Figure 11 is the method flow diagram of capability negotiation in the embodiment of the present invention, and the flow includes：

Step 111:CAP distributes uplink transmission resource.

In this step, CAP actively can distribute uplink transmission resource, and indicate to the STA distribution for sending uplink transmission resource after Stochastic accessing completion to STA.It can be broadcast signaling that above-mentioned distribution, which is indicated, and its uplink transmission resource distributed is designated using STA TSTA ID in broadcast signaling.STA finds the uplink transmission resource that CAP is oneself distribution using the TSTA ID of oneself from above-mentioned broadcast signaling, and sends the request of terminal basic capability negotiating using the uplink transmission resource.

Optionally, STA is received after the accidental access response of CAP transmissions, the maximum of terminal basic capability negotiating claim frame can be waited to wait frame period, if not receiving distribution of the CAP to uplink transmission resource to indicate, then think the failure of this capability negotiation, it is necessary to re-execute random access procedure.

Step 112:Terminal basic capability negotiating claim frame is sent to CAP（ SBC-REQ ).

Terminal basic capability negotiating request in the present embodiment is encapsulated in terminal basic capability negotiating claim frame, and the frame that following table 9 gives terminal basic capability negotiating claim frame carries a kind of citing of information.Table 9

Name Length (ratio

It is special）

STA antenna number 30 represents 1 antenna;

1 represents 2 antennas;

2 represent 3 antennas;

3 represent 4 antennas;

4 represent 5 antennas

5 represent 6 antennas

6 represent 7 antennas

7 represent 8 antennas STA maximum functionals 20: 20MHz

Bandwidth 1: 40MHz

2: 80MHz

3:Retain

STA supports frequency spectrum 20:Do not support

Polymerization 1:Support spectrum aggregating pattern 1

2:Support spectrum aggregating pattern 23:Support spectrum aggregating pattern 1 and 2

The tune 10 that STA is supported:Only support time-division scheduling degree mechanism 1:Retain

Sub 4 subchannel 0 of STA work

Channel mapping subchannels 1

Subchannel 2

Subchannel 3

Bitmap or computing may indicate that iz and 80MHz terminal works 20MHz subchannels.Reserved 4, default setting is 0

STA emission maximums 30 represent that fluxion is 1

Fluxion 1 represents that number is 2

2 represent that fluxion is 3

3 represent that fluxion is 4

4 represent that fluxion is 5

5 represent that fluxion is 6

6 represent that fluxion is 7

7 represent that number is 8

STA maximums receive 30 and represent that fluxion is 1

Fluxion 1 represents that number is 2

2 represent that fluxion is 3

3 represent that fluxion is 4

4 represent that fluxion is 5

5 represent that fluxion is 6

6 represent that fluxion is 7

7 represent that number is 8

STA MCS energy 0 does not support 256-QAM

¹

Power indicates that 1 supports 256-QAM

STA UEQM energy 0 does not support UEQM

¹

Power indicates that 1 supports UEQM

STA LDPC energy 0 does not support LDPC code length 1

¹

Power indicates that 1 supports LDPC code length 1

STA Tx STBC 0 are not supported

¹

Ability indicates that 1 supports

STA Rx STBC 0 are not supported

¹

Ability indicates that 1 supports STA 1 0:Do not support

MU-MIMO energy 1:Support

Power is indicated

Reserved 1, default setting is 0

Subcarrier number in the expression group of subcarrier grouping 3：Ns feedback capabilities 0:It is individual that group includes 1 (FPI=1)

Subcarrier（It is not grouped）；

1 :It is individual that group includes 2 (FPI=2)

Subcarrier；

2:It is individual that group includes 4 (FPI=4)

Subcarrier；

3:It is individual that group includes 8 (FPI=8)

Subcarrier；

4:Group includes 16 (FPI=16)

Individual subcarrier；

5-7:Retain.

The MIMO 3 000 of support:Do not support feedback

Feedback model combination 001:CSI-MIMO feeds back

010:BFM-MIMO feeds back

100:Retain

Bitmap or computing may indicate that

STA supports the combination of various feedback

Up signaling/anti-1 0:Do not support

Present channel format 21:Support

Support to indicate

STA DGI demands 20:Need 2 OFDM symbols to protect and indicate shield

1 :Need 4 OFDM symbol guarantors

Shield

2〜3：Retain

STA UGI demands 20:Need 2 OFDM symbols to protect and indicate shield

1 :Need 4 OFDM symbol guarantors

Shield

2〜3：Retain

Reserved 64, default setting is 0 as shown in table 9, and the information of the frame carrying of terminal basic capability negotiating claim frame is including following several：1) parameter will be used in STA antenna number, the flow after access wireless network.

2) STA maximum, STA reports the maximum of oneself, and the maximum can determine one of STA foundations of target subchannel to be switched as CAP.

3) STA supports spectrum aggregating, can know that STA supports the situation of spectrum aggregating by parameter CAP.In the embodiment of the present invention, STA and CAP may support 20MHz, 40MHz and 80MHz bandwidth, and system includes 4 20MHz subchannel, and the general aggregation schemes 1 of frequency i represent 20MHz, 40MHz Individual transmission in one or more 20MHz subchannels can be scheduled in 80MHz STA, spectrum aggregating pattern 2 represents multiple continuous subchannel polymerizations, with continuous frequency spectrum, 40MHz and 80MHz STA frequency domain can be continuously transmitted on aggregated channel.

4) scheduling mechanism that STA is supported, can know that STA supports the situation of scheduling mechanism by parameter CAP.

5) STA work subchannel mappings, the parameter indicates the available subchannel that STA is selected in system synchronization procedure is obtained, and these subchannels can determine one of STA foundations of target subchannel to be switched as CAP.

6) STA emission maximums fluxion and STA maximums receive fluxion, can know STA supports transmitting fluxion by parameter CAP and receive the situation of fluxion.

7) indicate that the MCS of STA MCS abilities is indicated, STA MCS abilities can be known by parameter CAP.

8) indicate that the non-of STA waits modulation（UEQM) the STA UEQM abilities of ability are indicated, STA UEQM abilities can be known by parameter CAP.Here non-grade modulation refers to uses different modulation systems for different business stream.

9) indicate that the LDPC abilities of STA LDPC abilities are indicated, STA LDPC abilities can be known by parameter CAP.

10) indicate that the STBC abilities of STA Space Time Coding abilities are indicated, STA STBC abilities can be known by parameter CAP.

11) indicate that the STA of STA MU-MIMO abilities MU-MIMO is indicated, mouthful STA MU-MIMO abilities can be obtained by parameter CAP.

12) subcarrier grouping Ns feedback capabilities are STA reported to CAP oneself support per the sub-carrier number between feeding back twice.

13) the MIMO feedback models combination that STA is supported, is that STA reports the MIMO feedback models oneself supported to combine to CAP.

14) up signaling/feedback channel form 2 is supported to indicate, up signaling/feedback channel form 2 here indicates a kind of up signaling/feedback channel for supporting frequency division.

15) STA DGI demands are indicated and STA UGI demands are indicated.

A variety of parameters consulted for physical layer modes are carried in above-mentioned terminal basic capability negotiating claim frame, spectrum aggregating is supported including STA, the scheduling mechanism that STA is supported, STA emission maximums fluxion and STA maximums receive fluxion, STA UEQM abilities are indicated, STA MU-MIMO is indicated, up signaling/feedback channel form 2 is supported to indicate, STA DGI demands are indicated and STA UGI demands are indicated, because the physical layer modes in EUHT systems are very more, the negotiation of physical layer modes is carried out in capability negotiation stage, the complexity for being conducive to constraint to realize.

STA is after generation terminal basic capability negotiating claim frame, and then one or several parameters that can be according to application demand in table 9 is wherein carried send the terminal basic capability negotiating claim frame.

Optionally, after terminal basic capability negotiating claim frame is sent, the maximum of terminal basic capability negotiating response frame can be waited to wait frame period, if not receiving terminal basic capability negotiating response frame, then think the failure of this capability negotiation, it is necessary to re-start random access procedure.

Step 113:Receive the terminal basic capability negotiating response frame that CAP is sent（ SBC-RSP )„

CAP can indicate to receive the downlink transfer resource of terminal basic capability negotiating response before terminal basic capability negotiating response frame is sent.

In the present embodiment, the response of terminal basic capability negotiating is encapsulated in terminal basic capability negotiating response frame.Following table 10 gives a kind of citing of the frame carrying information of terminal basic capability negotiating response frame.Table 10 Name Length (bit）Value

STA ID 12 are used for other user

Work subchannel reflects 4 0001:Subchannel 0

Penetrate 0010:Subchannel 1

0100:Subchannel 2

1000:Subchannel 3

Bitmap or computing may indicate that

40MHz and 80MHz terminal works do not polymerize in multiple 20MHz sub-channel spectras aggregation schemes 20

(the discontinuous spectrum aggregating of 1, aggregation schemes 1）

(continuous frequency spectrum polymerize 2, aggregation schemes 2）

3 retain

The only time-division of scheduling mechanism 10 dispatches

1 retains

MCS indicate 1 ^ ' i shows whether STA supports

256-QAM

0 does not support 256-QAM

1 supports 256-QAM

UEQM indicates that 10 do not support UEQM

1 supports UEQM

LDPC indicates the coded system that 1 STA is supported：

0 does not support LDPC code length 1;

1 supports LDPC code length 1.

Tx STBC 10 are not supported

1 supports

Rx STBC 10 are not supported

1 supports

STA emission maximums 30 represent that fluxion is 1

Fluxion 1 represents that number is 2

2 represent that fluxion is 3

3 represent that fluxion is 4

4 represent that fluxion is 5

5 represent that fluxion is 6

6 represent that fluxion is 7

7 represent that number is 8

STA maximums receive 30 and represent that fluxion is 1

Fluxion 1 represents that number is 2

2 represent that fluxion is 3

3 represent that fluxion is 4

4 represent that fluxion is 5

5 represent that fluxion is 6

6 represent that fluxion is 7 7 represent that fluxion is 8;

MU-MIMO 1 0:Do not support

1 :Support

Reserved 1, default setting is 0

Subcarrier number in the expression groups of subcarrier grouping Ns 3：Feedback capability 0:It is individual that group includes 1 (FPI=1)

Subcarrier（It is not grouped）；

1 :Group includes 2 (FPI=2) individual subcarriers；

2:Group includes 4 (FPI=4) individual subcarriers；

3:Group includes 8 (FPI=8) individual subcarriers；

4:Group includes 16 (FPI=16) individual subcarriers；

5-7:Retain.

The MIMO 3 000 of support:Do not support feedback

Feedback model combination 001:CSI-MIMO feeds back

010:BFM-MIMO feeds back

100:Retain

Bitmap or computing can be confirmed

The combination of STA various feedbacks

Up signaling/feedback 10:Form 2 is not supported

Channel format 21:Support form 2

Reserved 1 acquiescence 0

STA DGI demands 20:Need 2 OFDM symbol guarantors

Shield

1 :Need 4 OFDM symbol protections

2〜3：Retain

STA UGI demands 20:Need 2 OFDM symbol guarantors

Shield

1 :Need 4 OFDM symbol protections

2〜3：Retain

As shown in table 10, the information carried in the frame of terminal basic capability negotiating response frame includes following several reserved 68 acquiescence 0：

1) the formal mark STA ID distributed in the range of CAP for STA, after networking successfully, STA will use the STA ID to be interacted with CAP, the TSTA ID failures of accidental access stage distribution.

2) work subchannel mappings, indicates the STA target subchannels to be switched to.CAP can be just in the blunt basic capacity claim frame according to terminal STA maximums and STA work subchannel mappings determine the parameter.Further, the maximum work that CAP can be reported according to situations such as actual channel loading to STA It is adjusted as bandwidth, such as STA reports the maximum of oneself to be 80MHz, CAP just blunt can be adjusted to 40MHz or 20MHz according to actual conditions.The subchannel that STA work subchannel mappings are indicated in terminal basic capability negotiating claim frame is defined as the STA target subchannels to be switched by CAP as far as possible, STA maximum can be also referred to simultaneously, or the maximum of the STA after adjustment, determine final work subchannel mappings information.

3) spectrum aggregating pattern, indicates the relation between the target subchannel in the work subchannel mappings, and spectrum aggregating pattern here is to support the general polymerizations of frequency i to determine according to the STA carried in terminal basic capability negotiating claim frame.

4) scheduling mechanism, is determined according to the STA carried in terminal basic capability negotiating claim frame the scheduling mechanisms supported.

5) MCS configured informations, UEQM configured informations, LDPC configured informations, Tx STBC information and Rx STBC information, are determined according to the parameters carried in terminal basic capability negotiating claim frame respectively.For example, it is assumed that STA supports 256QAM, and CAP does not support 256QAM, then CAP would not allow for STA and support 256QAM.

6) STA emission maximums fluxion and STA maximums receive fluxion, and receiving fluxion according to STA emission maximums fluxion and the STA maximum carried in terminal basic capability negotiating claim frame respectively determines.

7) MU-MIMO, is determined according to the STA carried in terminal basic capability negotiating claim frame the MU-MIMO supported.

8) subcarrier grouping Ns feedback capabilities, determine, STA can once be fed back every several subcarriers, save feedback overhead according to the subcarrier grouping Ns feedback capabilities carried in terminal basic capability negotiating claim frame.

9) the MIMO feedback models combination supported, combines according to the STA carried in terminal basic capability negotiating claim frame the MIMO feedback models supported and determines, can use a variety of MIMO feedback models.

10) up signaling/feedback channel form 2, STA DGI demands and STA UGI demands, are determined according to the items correspondence parameter carried in terminal basic capability negotiating claim frame respectively.

CAP is after generation terminal basic capability negotiating response frame, and then one or several parameters that can be according to application demand in table 10 is wherein carried send the terminal basic capability negotiating response frame.

In order that CAP knows whether STA proper reception of terminal basic capability negotiating response frame, STA can be sent when being properly received to CAP to be confirmed, STA can send ACK.Or, the embodiment of the present invention proposes a kind of group acknowledge（GroupAck) mode, group acknowledge frame includes management control framing bit, includes the bitmap of the same user's different business stream of correspondence（), bitmap STA can fill in the instruction whether response of instruction terminal basic capability negotiating is properly received in above-mentioned management controls framing bit here.Subsequently when being carried out data transmission based on Business Stream, STA can utilize the bitmap in group acknowledge frame, and the confirmation for different business stream is sent jointly into CAP.

Optionally, CAP waits the maximum of terminal basic capability negotiating response frame acknowledgment to wait frame period, if not receiving the confirmation of STA returns, then it is assumed that this capability negotiation fails after terminal basic capability negotiating response frame is sent.

Further, during the maximum wait frame period of terminal basic capability negotiating response frame acknowledgment is waited, if CAP has remaining downlink resource to distribute to the STA, terminal basic capability negotiating response frame can be retransmitted to the STA.In the case of repeating transmission terminal basic capability negotiating response frame is related to, CAP is only sent after terminal basic capability negotiating response frame first, can just be waited terminal basic capability negotiating to respond the maximum of frame acknowledgment and be waited frame period.

After capability negotiation terminates, STA will be switched in the target subchannel of CAP instructions.

Figure 12 is accesses the structural representation of the terminal side equipment of wireless network in the present invention, the equipment includes：Obtain device 121, random access terminal side device 122 and the capability negotiation end side device 123 of system synchronization. The device 121 of system synchronization is obtained, the process of system synchronization is obtained for being performed with CAP.

Random access terminal side device 122, for Stochastic accessing to above-mentioned CAP.

Capability negotiation end side device 123, for carrying out capability negotiation with above-mentioned CAP.

The device of system synchronization is obtained in the present invention to be included：Synchronous module is obtained, the synchronous module of the acquisition includes：First detection unit, the first resolution unit and first acquisition unit.

First detection unit, for finding physical frame on current sub-channel.

First resolution unit, for parsing in the physical frame that first detection unit is searched out

SICH and CCH, wherein the SICH indicates the structure of physical frame, the CCH indicates the distribution of system resource.

The first acquisition unit, for the result parsed using first resolution unit, systematic parameter is obtained in the physical frame searched out from first detection unit.

Figure 13 is a kind of structural representation of the device of acquisition system synchronization in the embodiment of the present invention, and the device includes：Synchronous module 131 is obtained, obtaining synchronous module 131 includes：First detection unit 1311, the first resolution unit 1312 and first acquisition unit 1313.

First detection unit 1311, for finding physical frame on current sub-channel.

First resolution unit 1312, for parsing SICH and CCH in the physical frame that the first detection unit 1311 is searched out, wherein the SICH indicates the structure of physical frame, the CCH indicates the distribution of system resource.

First acquisition unit 1313, for the result parsed using the first resolution unit 1312, systematic parameter is obtained in the physical frame searched out from the first detection unit 1311.

Further, first acquisition unit 1313 can be after systematic parameter be obtained, and the first detection unit 1311 of triggering is transferred to next sub-channels and continually looks for physical frame, until each sub-channels in traversal predetermined channel list.

Further, first acquisition unit 1313 can will obtain all subchannels of systematic parameter as available subchannel, and therefrom select any one subchannel.

As a kind of optional embodiment, the first detection unit 1311 on current sub-channel by detecting the frame head of physical frame, to find physical frame.

Further, when the first detection unit 1311 is not detected by frame head on current sub-channel, detection is continued executing with, until when exceeding the stand-by period of subchannel, being transferred to next sub-channels and continually looking for physical frame.

It is used as a kind of optional embodiment, when first resolution unit 1312 parses SICH and CCH unsuccessful, trigger the first detection unit 1311 and continue executing with operation, until when exceeding the stand-by period of subchannel, the first detection unit 1311 of triggering is transferred to next sub-channels and continually looks for physical frame.

As a kind of optional embodiment, first acquisition unit 1313 detects broadcast message frame BCF from the physical frame, then obtains systematic parameter from the BCF.

Further, when first acquisition unit 1313 is not detected by BCF, the first detection unit 1311 of triggering continues executing with operation, until when exceeding the stand-by period of subchannel, the first detection unit 1311 of triggering is transferred to next sub-channels and continually looks for physical frame.

Based on the device for obtaining system synchronization in synchronous module 131, the embodiment of the present invention is obtained also including keeping synchronous module 132, synchronous module 132 is kept to include：Second detection unit 1321, the second resolution unit 1322 and second acquisition unit 1323.

Second detection unit 1321, for continually looking for physical frame in the subchannel selected.

Second resolution unit 1322, for parsing SICH and CCH in the physical frame that the second detection unit 1321 is found.

Second acquisition unit 1323, for the analysis result using the second resolution unit 1322, BCF is detected in the physical frame found from the second detection unit 1321, to obtain ear systematic parameter again. As the first optional embodiment for keeping synchronous module 132, synchronous module 132 is kept also to include：SICH timers 1324, BCF timers 1325 and judging unit 1326.

Second detection unit 1321, further when beginning look for physical frame, starts SICH timers 1324 and BCF timers 1325.

Judging unit 1326, for judging whether the second resolution unit 1322 before the time-out of SICH timers 1324 successfully parses SICH, if it is, resetting SICH timers 1324, otherwise triggering obtains synchronous module 131 and re-executes operation according to the channel list；Judge whether second acquisition unit 1323 detects BCF before the time-out of BCF timers 1325, if, reset BCF timers 1325 and trigger the second detection unit 1321 and physical frame is continually looked in the subchannel selected, otherwise triggering obtains synchronous module 131 and re-executes operation according to the channel list.

It is identical with the structure shown in Figure 13 as second of optional embodiment for keeping synchronous module 132, keep synchronous module 131 also to include：SICH timers 1324, BCF timers 1325 and judging unit 1326.

Judging unit 1326, for judging whether the second resolution unit 1322 before the time-out of SICH timers 1324 successfully parses SICH, if, SICH timers 1324 are reset, otherwise triggering obtains synchronous module 131 using the subchannel selected as starting point and re-executes operation according to the channel list；Judge whether second acquisition unit 1323 detects BCF before the time-out of BCF timers 1325, if, reset BCF timers 1325 and trigger the second detection unit 1321 and physical frame is continually looked in the subchannel selected, otherwise triggering obtains synchronous module 131 using the subchannel selected as starting point and re-executes operation according to the channel list.

On this basis, first acquisition unit 1313, further during operation is re-executed, are obtained after systematic parameter on a sub-channels, and the subchannel that directly triggering keeps synchronous module 132 alternatively to go out with the subchannel re-executes operation.

As the third optional embodiment for keeping synchronous module 132, structure as shown in figure 14 keeps synchronous module 132 also to include：SICH timers 1324, BCF timers 1325 and judging unit 1326.

Judging unit 1326, for judging whether the second resolution unit 1322 before the time-out of SICH timers 1324 successfully parses SICH, if it is, resetting SICH timers 1324, otherwise trigger first acquisition unit 1313 and select one in available subchannel again；Judge whether second acquisition unit 1323 detects BCF before the time-out of BCF timers 1325, if, reset BCF timers 1325 and trigger the second detection unit 1321 and physical frame is continually looked in the subchannel selected, otherwise trigger first acquisition unit 1313 and select one in available subchannel again.

In three kinds of alternative embodiments of the synchronous module 132 of above-mentioned holding, if it is considered that the expired application scenarios limitation of channel list, the module for determining whether channel list is expired can also be included in the device, the module can monitor the operation for obtaining synchronous module 131, start timing after it completes channel list scanning, reach after setting time, draw the expired result of channel list.Or, if end side has in itself determines the whether expired module of channel list, the whether expired result of the channel list that keeps synchronous module 132 directly can draw using the module.

In three kinds of alternative embodiments of the synchronous module 132 of above-mentioned holding, the second detection unit 1321 can be in the subchannel selected using the SICH in the present physical frame searched out, between determining at the beginning of next physical frame. It is same to keep synchronous module, can be with the 26S Proteasome Structure and Function in integrated three kinds of embodiments as shown in figure 13 above and Figure 14.

It is synchronous with CAP setup times in order to realize, it can also include in the device that system synchronization is obtained in the embodiment of the present invention：Synchronization unit, it is synchronous with CAP foundation using the system common clock in systematic parameter.

The first random access terminal side device that the present invention is provided includes：Resource request unit, random access request unit and accidental access response receiving unit.

The resource request unit, for sending random access sequence in any one sub-channels.

The random access request unit, for the uplink transmission resource distributed using CAP according to random access sequence, random access request is sent to CAP.

The accidental access response receiving unit, the accidental access response for receiving CAP transmissions.As a kind of optional embodiment, Figure 15 is the structural representation of the first random access terminal side device in the embodiment of the present invention, and the device includes：Resource request unit 151, random access request unit 152, accidental access response receiving unit 153, the first trigger element 154, power contorl parameters reporting unit 155, resource indicate receiving unit 156, the second trigger element 157 and power contorl parameters adjustment unit 158.

Resource request unit 151, for sending random access sequence in any one sub-channels；Instructions of the CAP to uplink transmission resource is received in the setting frame number after sending random access sequence, if being not received by the instruction of uplink transmission resource, random access sequence is resend.Here the instruction of uplink transmission resource is carried in system signaling, and with the indexing of the random access sequence, the system frame number identification that the index that the random access sequence frequency-domain circular is shifted and Stochastic accessing occur.Further, transmitting Timing Advance is also carried in the instruction of the uplink transmission resource.

Random access request unit 152, for the uplink transmission resource distributed using CAP according to random access sequence, random access request is sent to CAP.Random access request unit 152 will be timed in advance when sending random access request to CAP according to transmitting Timing Advance.

Accidental access response receiving unit 153, the accidental access response for receiving CAP transmissions.Further, the access state for indicating successfully or to abandon can be carried in accidental access response, when access state is indicated successfully, interim mark i distributed for the STA belonging to the device in the range of CAP can also be carried in accidental access response.

First trigger element 154, for the monitoring accidental access response receiving unit 153 in the setting frame number after random access request unit 152 sends random access request, if accidental access response receiving unit 153 is not received by the accidental access response, triggering resource request unit 151 sends random access sequence.

Power contorl parameters reporting unit 155, for the power contorl parameters for notifying random access request unit 152 to report, sends for its carrying in random access request.

Resource indicates receiving unit 156, for receiving instructions of the CAP to the downlink transfer resource of the transmission accidental access response.Here the instruction to the downlink transfer resource is carried in system signaling, and the system frame number identification occurred with the index and Stochastic accessing of the indexing of the random access sequence, the random access sequence frequency i or cyclic shift.

Second trigger element 157, the address for comparing the address carried in the accidental access response and affiliated STA, if mismatched, triggering resource request unit 151 sends random access sequence to the CAP again.

Power contorl parameters adjustment unit 158, power contorl parameters are adjusted for the power contorl parameters adjusted value in accidental access response.

The first random access terminal side device in the embodiment of the present invention, can include whole units as shown in Figure 15 inside it, but it is also possible to the blunt difference according to application demand of, only include the part shown in Figure 15 Unit, therefore Figure 15 only gives a kind of structure example of random access terminal side device, is not the restriction to its structure.

Second of random access terminal side that the present invention is provided includes：Random access request unit and accidental access response connect) unit.

The random access request unit, the random access request of power contorl parameters is carried for being sent to CAP.

The accidental access response receiving unit, for receiving the accidental access response that the CAP is sent.Further, it can also include in second of random access terminal side device of the invention：Resource request unit, for sending random access sequence to CAP in any one sub-channels, to ask the uplink transmission resource for sending the random access request.

It is used as a kind of optional embodiment, second of random access terminal side device of the invention, there can be the internal structure similar with shown in Figure 15, but without single power contorl parameters reporting unit, the random access request for carrying power contorl parameters is directly transmitted by random access request unit, the function phase of other units is same.

Capability negotiation end side device in the present invention includes：Capability negotiation request unit and capability negotiation response receiving unit.

The Capability negotiation request unit, for the uplink transmission resource distributed using CAP, is sent terminal basic capability negotiating to CAP and asked.

The capability negotiation responds receiving unit, the terminal basic capability negotiating response of the carrying work subchannel mappings information for receiving CAP transmissions.Above-mentioned work subchannel mappings information indicates the STA target subchannels to be switched.

Figure 16 is the structural representation of capability negotiation end side device in the embodiment of the present invention, and the device includes：Capability negotiation request unit 161, capability negotiation response receiving unit 162, confirmation unit 163, the first trigger element 164, the second trigger element 165 and configuration parameter provide unit 166.

Capability negotiation request unit 161, the distribution for receiving the uplink transmission resource is indicated；The uplink transmission resource distributed using CAP, is sent terminal basic capability negotiating to CAP and asked.

Capability negotiation responds receiving unit 162, the terminal basic capability negotiating response of the carrying work subchannel mappings information for receiving CAP transmissions.Above-mentioned work subchannel mappings information indicates the STA target subchannels to be switched.Further, the response of terminal basic capability negotiating can also carry spectrum aggregating pattern information and/or formal mark, wherein spectrum aggregating pattern information is used to indicate the relation between the target subchannel, and formal mark is the formal mark that the STA is distributed in the range of the CAP.

Confirmation unit 163, for after capability negotiation response receiving unit 162 is properly received the response of terminal basic capability negotiating, sending and confirming to CAP.

First trigger element 164, consult request unit 161 for completing monitoring capacity in the setting frame number after operation in random access terminal side device, if Capability negotiation request unit 161 does not receive the instruction of uplink transmission resource, triggering random access terminal side device re-executes operation.

Second trigger element 165, consult response receiving unit 162 for sending monitoring capacity in the setting frame number after the request of terminal basic capability negotiating in Capability negotiation request unit 161, if capability negotiation response receiving unit 162 is not received by the response of terminal basic capability negotiating, triggering random access terminal side device re-executes operation.

Configuration parameter provides unit 166, for the maximum of the STA to be supplied into Capability negotiation request unit 161, is sent for it in the request of terminal basic capability negotiating.Further, configuration parameter provides unit 166, is additionally operable to the available subchannel informations of the STA being supplied to Capability negotiation request unit 161, is sent for it in the request of terminal basic capability negotiating.

Capability negotiation end side device in the embodiment of the present invention, can include whole units as shown in figure 16, but it is also possible to according to the difference of application demand, only include the unit shown in Figure 16 inside it, Therefore Figure 16 only gives a kind of structure example of capability negotiation end side device, is not the restriction to its structure.

Figure 17 is accesses the structural representation of the network side equipment of wireless network in the present invention, the equipment includes：Systematic parameter dispensing device 171, Network with Random Multiple Access System side device 172 and capability negotiation network side apparatus 173.

Systematic parameter dispensing device 171, for system parameters.

Network with Random Multiple Access System side device 172, for permitting terminal side equipment Stochastic accessing.

Capability negotiation network side apparatus 173, for carrying out capability negotiation with terminal side equipment.

The first Network with Random Multiple Access System side device that the present invention is provided, including：Resource allocation unit, random access request receiving unit and accidental access response unit.

The resource allocation unit, for receiving the random access sequence that STA is sent on any one sub-channels, and it is just blunt according to random access sequence distribution uplink transmission resource.

The random access request receiving unit, for receiving the random access request that the STA utilizes the uplink transmission resource to send.

The accidental access response unit, for sending accidental access response to the STA.

As a kind of optional embodiment, Figure 18 is the structural representation of the first random access radio network side device in the embodiment of the present invention, and the device includes：Resource allocation unit 181, random access request receiving unit 182, accidental access response unit 183, deletion unit 184, access state determining unit 185, temporary mark allocation unit 186, power contorl parameters adjusted value determining unit 187.

Resource allocation unit 181, uplink transmission resource is distributed for receiving the random access sequence that STA is sent on any one sub-channels, and according to the random access sequence；Send the instruction to the uplink transmission resource；For accidental access response allocation of downlink transfer resource, and send the instruction to downlink transfer resource.Here the instruction of the uplink transmission resource is carried in system signaling, and with the indexing of the random sequence, the system frame number identification that the index that the random access sequence frequency-domain circular is shifted and Stochastic accessing occur.Further, transmitting Timing Advance is also carried in the instruction of the uplink transmission resource, Timing Advance during up transmitting is indicated.Here the instruction to downlink transfer resource is carried in system signaling, and the system frame number identification occurred with the index and Stochastic accessing of the indexing of the random access sequence, the random access sequence frequency i or cyclic shift.

Random access request receiving unit 182, for receiving the random access request sent using the uplink transmission resource.

Accidental access response unit 183, for sending accidental access response to STA.

Delete unit 184, for the monitoring random access request receiving unit 182 in the setting frame number after resource allocation unit 181 receives the random access sequence that the STA is sent, if random access request receiving unit 182 does not receive the random access request that the STA is sent, the corresponding all information of the STA are deleted, or delete the corresponding information of the random access sequence.

Access state determining unit 185, determines that the access state of the STA is successfully or abandoned for the just blunt measurement result according to upward signal, and access state is sent into accidental access response unit 183, is sent for its carrying in accidental access response.

Temporary mark allocation unit 186, for when access state determining unit 185 determines that access state is indicated successfully, temporary mark is distributed in own range for STA, and the temporary mark is sent to accidental access response unit 183, is sent for its carrying in accidental access response.

Power contorl parameters adjusted value determining unit 187, for the power contorl parameters reported carried in the random access request that is received according to random access request receiving unit 182, determine power contorl parameters adjusted value, and power contorl parameters adjusted value is sent to accidental access response unit 183, sent for its carrying in accidental access response. Network with Random Multiple Access System side device in the embodiment of the present invention, whole units as shown in figure 18 can be included inside it, but can also be according to the difference of application demand, only include the unit shown in Figure 18, therefore Figure 18 only gives a kind of structure example of Network with Random Multiple Access System side device, is not the restriction to its structure.

Second of Network with Random Multiple Access System side device that the present invention is provided, including：Random access request receiving unit and accidental access response unit.

The random access request receiving unit, the random access request of the carrying power contorl parameters for receiving STA transmissions.

Further, it can also include in second of Network with Random Multiple Access System side device of the invention：Resource allocation unit, for receiving the random access sequence that STA is sent, and the just blunt uplink transmission resource that the transmission random access request is distributed according to the random access sequence on any one sub-channels.

As a kind of optional embodiment, the internal structure of second of Network with Random Multiple Access System side device provided in an embodiment of the present invention is same as shown in Figure 18, and the function of each unit is also similar.

Network side apparatus provided by the present invention for accessing wireless network, refers to capability negotiation network side apparatus.

Capability negotiation network side apparatus includes in the present invention：Capability negotiation request receiving unit and capability negotiation response unit.

The Capability negotiation request receiving unit, receives the terminal basic capability negotiating request that STA is sent using the uplink transmission resource of distribution.

The capability negotiation response unit, sends the terminal basic capability negotiating response for carrying work subchannel mappings information, and work subchannel mappings information here indicates the STA target subchannels to be switched.

Figure 19 is the structural representation of capability negotiation network side apparatus in the embodiment of the present invention, and the device includes：Capability negotiation request receiving unit 191, capability negotiation response unit 192, confirmation receiving unit 193, monitoring unit 194, resource allocation unit 195, work subchannel mappings information determination unit 196, spectrum aggregating pattern information provide unit 197, formal mark allocation unit 198.

Capability negotiation request receiving unit 191, receives the terminal basic capability negotiating request that STA is sent using the uplink transmission resource of distribution.

Capability negotiation response unit 192, sends the terminal basic capability negotiating response for carrying work subchannel mappings information, and work subchannel mappings information here indicates the STA target subchannels to be switched.

Confirm receiving unit 193, the confirmation sent after the response of terminal basic capability negotiating is being properly received for receiving the STA.

Monitoring unit 194, confirm receiving unit 193 for sending monitoring in the setting frame number after the response of terminal basic capability negotiating in capability negotiation response unit 192, if it is confirmed that receiving unit 193 does not receive the confirmation, notification capabilities consult request reception unit 191 and capability negotiation response unit 192 terminates this operation.Further, before the triggering of monitored unit 194, capability negotiation response unit 192 can resend the response of terminal basic capability negotiating to the STA.

Resource allocation unit 195, the uplink transmission resource of terminal basic capability negotiating request is sent for being distributed for the STA, and sends the distribution instruction of the uplink transmission resource.

Worked subchannel mappings information determination unit 196, and capability negotiation response unit 192 is sent to for determining work subchannel mappings information, and by the work subchannel mappings information, is sent for its carrying in the response of terminal basic capability negotiating.The bandwidth sum for the target subchannel that the work subchannel mappings information determined is indicated, less than or equal to the maximum of the STA.On this basis, further, work subchannel mappings information determination unit 196 can also adjust the STA carried in the terminal basic capability negotiating request maximum, now, the bandwidth sum for the target subchannel that the subchannel mappings information that works is indicated, less than or equal to the maximum of the STA after adjustment.On this basis, Further, in the target subchannel that the work subchannel mappings information that work subchannel mappings information determination unit 196 is determined is indicated, STA one or more available subchannels are included.

Spectrum aggregating pattern information provides unit 197, for the general pattern informations of frequency i of the relation between instruction target subchannel to be supplied into capability negotiation response unit 192, is sent for its carrying in the response of terminal basic capability negotiating.

Formal mark allocation unit 198, for a formal mark to be distributed in own range to the STA for sending the request of terminal basic capability negotiating, and the formal mark is sent to capability negotiation response unit 192, sent for its carrying in the response of terminal basic capability negotiating.Formal mark allocation unit 198 can obtain the STA of current request capability negotiation information from Capability negotiation request receiving unit 191, and a formal mark is distributed in own range for the STA.

Capability negotiation network side apparatus in the embodiment of the present invention, whole units as shown in figure 19 can be included inside it, but can also be according to the difference of application demand, only include the unit shown in Figure 19, therefore Figure 19 only gives a kind of structure example of capability negotiation network side apparatus, is not the restriction to its structure.

Figure 20 is a kind of flow chart for being used to access the method for wireless network in the present invention, and this method includes：Step 201:Generation carries the terminal basic capability negotiating request of STA maximums, and the STA maximums indicate STA maximum；

Step 202:Send the terminal basic capability negotiating request.

Further, above-mentioned terminal basic capability negotiating request is encapsulated in terminal basic capability negotiating claim frame.Figure 21 is another flow chart for being used to access the method for wireless network in the present invention, and this method includes

Step 211:Generation carries the terminal basic capability negotiating request of STA work subchannel mappings, and the STA work subchannel mappings indicate the available subchannels of STA；

Step 212:Send the terminal basic capability negotiating request.

Further, above-mentioned terminal basic capability negotiating request is encapsulated in terminal basic capability negotiating claim frame.The method that Figure 22 is used to access wireless network for another in the present invention, this method includes：Step 221:Generation carries the terminal basic capability negotiating response of work subchannel mappings information so that the STA for receiving the terminal basic capability negotiating response is switched to target subchannel according to the work subchannel mappings information；

Step 222:Send the terminal basic capability negotiating response.

The method that corresponding diagram 20 is used to access wireless network to four kinds shown in Figure 22, the present invention also provides four kinds of devices for being used to access wireless network, these four devices include generation unit and transmitting element, the information in generation step wherein in generation unit generation corresponding method, transmitting element sends the information of generation unit generation.

It should be understood that the particular order or level the step of during disclosed are the examples of illustrative methods.Based on design preference, it should be appreciated that during the step of particular order or level can be rearranged in the case where not departing from the protection domain of the disclosure.Appended claim to a method gives the key element of various steps with exemplary order, and not to be limited to described particular order or level.

In above-mentioned detailed description, various features are combined in single embodiment together, with the cylinder disclosure.This open method should not be construed to reflect such intention, i.e. the embodiment of theme claimed needs features more more than the feature clearly stated in each claim.On the contrary, as the following claims reflect, the present invention is in the state fewer than whole features of disclosed single embodiment.Therefore, appended claims is hereby expressly incorporated into detailed description, and wherein each claim is alone as the single preferred embodiment of the present invention.

Described above includes the citing of one or more embodiments.Certainly, it is impossible part or all possible combination of method to be described to describe above-described embodiment, but those of ordinary skill in the art It should be appreciated that each embodiment can do further combinations and permutations.Therefore, embodiment described herein is intended to all such changes, modifications and variations fallen within scope of appended claims.In addition, with regard to the term " including " used in specification or claims, the word covers mode similar to term " including ", is connect in the claims as # as word explains just as " including, ".In addition, using in the specification of claims any one term " or " be to represent " non-exclusionism or ".

Claims

Claims

1. a kind of method for accessing wireless network, it is characterised in that this method includes：The uplink transmission resource distributed using central access point CAP, is sent terminal basic capability negotiating to the CAP and asked；

The terminal basic capability negotiating response for the carrying work subchannel mappings information that the CAP is sent is received, the work subchannel mappings information indicates the site STA target subchannel to be switched.

2. the method as described in claim 1, it is characterised in that also include：It is properly received after the terminal basic capability negotiating response, sends and confirm to the CAP.

3. the method as described in claim 1, it is characterised in that also include：The distribution for receiving the uplink transmission resource is indicated.

4. method as claimed in claim 3, it is characterised in that also include：Setting frame number is waited after the completion of the random access procedure performed before sending the request of terminal basic capability negotiating, is indicated if not receiving the distribution, re-executes the random access procedure.

5. the method as described in claim 1, it is characterised in that also include：Setting frame number is waited after the request of terminal basic capability negotiating is sent, if not receiving the terminal basic capability negotiating response, the random access procedure before sending the request of terminal basic capability negotiating is re-executed.

6. the method as described in claim 1, it is characterised in that the terminal basic capability negotiating response also carries spectrum aggregating pattern information and/or formal mark；

The spectrum aggregating pattern information, indicates the relation between multiple target subchannels；The formal mark that the STA is formally designated in the range of the CAP.

7. the method as described in claim 1, it is characterised in that the maximum of the STA is carried in the terminal basic capability negotiating request.

8. method as claimed in claim 7, it is characterised in that also carry the available subchannel informations of the STA in the terminal basic capability negotiating request.

9. a kind of method for accessing wireless network, it is characterised in that this method includes：Receive the terminal basic capability negotiating request that STA is sent using the uplink transmission resource of distribution；The terminal basic capability negotiating response for carrying work subchannel mappings information is sent to the STA, the work subchannel mappings information indicates the STA target subchannels to be switched.

10. method as claimed in claim 9, it is characterised in that also include：Receive the confirmation that the STA is sent after the terminal basic capability negotiating response is properly received.

11. method as claimed in claim 10, its ^, which is levied, to be, in addition to：Wait setting frame number, if not receiving the confirmation, terminate flow after the terminal basic capability negotiating response is sent.

12. method as claimed in claim 11, it is characterised in that in the setting frame number, resends the terminal basic capability negotiating to the STA and responds.

13. method as claimed in claim 9, it is characterised in that also include：Distribute the uplink transmission resource, and send to the STA instruction of the uplink transmission resource.

14. method as claimed in claim 9, it is characterised in that the terminal basic capability negotiating response also carries spectrum aggregating pattern information and/or formal mark；

The spectrum aggregating pattern information, the relation between multiple target subchannels is determined for the STA；

It is described to be formally designated the formal mark that the STA is distributed in own range.

15. method as claimed in claim 9, it is characterised in that the maximum of the STA is carried in the terminal basic capability negotiating request； Also include：Determine the work subchannel mappings information；

The bandwidth sum for the target subchannel that the work subchannel mappings information is indicated, less than or equal to the maximum of the STA.

16. method as claimed in claim 15, it is characterised in that also include：Adjust the maximum of the STA；

The bandwidth sum for the target subchannel that the work subchannel mappings information is indicated, less than or equal to the maximum of the STA after adjustment.

17. the method as described in claim 15 or 16, it is characterised in that also carry the available subchannel informations of the STA in the terminal basic capability negotiating request；

In the target subchannel that the work subchannel mappings information is indicated, include one or more available subchannels of the STA.

18. the method as described in claim 1 or 9, it is characterised in that the work subchannel mappings information indicates one or more target subchannels using bit map.

19. a kind of end side device for being used to access wireless network, it is characterised in that the device includes：Capability negotiation request unit, for the uplink transmission resource distributed using CAP, is sent terminal basic capability negotiating to the CAP and asked；

Capability negotiation responds receiving unit, and the terminal basic capability negotiating response for receiving the carrying work subchannel mappings information that the CAP is sent, the work subchannel mappings information indicates the STA target subchannels to be switched.

20. device as claimed in claim 19, it is characterised in that the device also includes：Confirmation unit, for after capability negotiation response receiving unit is properly received the terminal basic capability negotiating response, sending and confirming to the CAP.

21. device as claimed in claim 19, it is characterised in that the distribution that the Capability negotiation request unit further receives the uplink transmission resource is indicated.

22. device as claimed in claim 21, it is characterised in that the device also includes：First trigger element, for completing to monitor the Capability negotiation request unit in the setting frame number after operation in random access terminal side device, if the Capability negotiation request unit does not receive the distribution and indicated, triggering random access terminal side device re-executes operation.

23. device as claimed in claim 19, it is characterised in that the device also includes：Second trigger element, the capability negotiation response receiving unit is monitored in the setting frame number after the terminal basic capability negotiating request for being sent in the Capability negotiation request unit, if the capability negotiation response receiving unit is not received by the terminal basic capability negotiating response, triggering random access terminal side device re-executes operation.

24. device as claimed in claim 19, it is characterised in that the terminal basic capability negotiating response also carries spectrum aggregating pattern information and/or formal mark；

The spectrum aggregating pattern information, for indicating the relation between multiple target subchannels；It is described to be formally designated the formal mark that the STA is distributed in the range of the CAP.

25. device as claimed in claim 19, it is characterised in that the device also includes：Configuration parameter provides unit, for the maximum of the STA to be supplied into the Capability negotiation request unit, is sent for it in the request of terminal basic capability negotiating.

26. device as claimed in claim 25, it is characterised in that the configuration parameter provides unit, is additionally operable to the available subchannel informations of the STA being supplied to the Capability negotiation request unit, sends for it in the request of terminal basic capability negotiating.

27. a kind of network side apparatus for being used to access wireless network, it is characterised in that the device includes：Capability negotiation request receiving unit, receives the terminal basic capability negotiating request that STA is sent using the uplink transmission resource of distribution； Capability negotiation response unit, sends to the STA and carries the response of work subchannel mappings information terminal basic capability negotiating, and the work subchannel mappings information indicates the STA target subchannels to be switched.

28. device as claimed in claim 27, it is characterised in that the device also includes：Confirm receiving unit, the confirmation sent after the terminal basic capability negotiating response is being properly received for receiving the STA.

29. device as claimed in claim 28, it is characterised in that the device also includes：Monitoring unit, the confirmation receiving unit is monitored for being sent in the capability negotiation response unit in the setting frame number after the terminal basic capability negotiating response, if the confirmation receiving unit does not receive the confirmation, trigger the Capability negotiation request unit and the capability negotiation response unit terminates this operation.

30. device as claimed in claim 29, it is characterised in that before being triggered by the monitoring unit, the capability negotiation response unit resends the terminal basic capability negotiating to the STA and responded.

31. method as claimed in claim 27, it is characterised in that the device also includes：Resource allocation unit, the uplink transmission resource of terminal basic capability negotiating request is sent for being distributed for the STA, and sends the distribution instruction of the uplink transmission resource.

32. device as claimed in claim 27, it is characterised in that the device also includes：Spectrum aggregating pattern information provides unit and/or formally identifies allocation unit；

The spectrum aggregating pattern information provides unit, for the spectrum aggregating pattern information of the relation between the multiple target subchannels of instruction to be supplied into the capability negotiation response unit, is sent for its carrying in the response of terminal basic capability negotiating；

The formal mark allocation unit, is sent to the capability negotiation response unit for distributing a formal mark in own range to the STA, and by the formal mark, is sent for its carrying in the response of terminal basic capability negotiating.

33. device as claimed in claim 27, it is characterised in that also include in the device：Worked subchannel mappings information determination unit, and the capability negotiation response unit is sent to for determining the work subchannel mappings information, and by the work subchannel mappings information, is sent for its carrying in the response of terminal basic capability negotiating；

The bandwidth sum for the target subchannel that the work subchannel mappings information is indicated, less than or equal to the maximum of the STA.

34. device as claimed in claim 33, it is characterised in that the work subchannel mappings information determination unit also adjusts the STA carried in the terminal basic capability negotiating request maximum；

The bandwidth sum for the target subchannel that the work subchannel mappings information is indicated, less than or equal to the maximum of the STA after adjustment.

35. the device as described in claim 33 or 34, it is characterised in that in the target subchannel that the work subchannel mappings information is indicated, include STA one or more available subchannels.

36. the device as described in claim 19 or 27, it is characterised in that the work subchannel mappings information indicates one or more target subchannels using bit map.