CN104348593A - Method and device for frame confirmation - Google Patents
Method and device for frame confirmation Download PDFInfo
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- CN104348593A CN104348593A CN201310346467.7A CN201310346467A CN104348593A CN 104348593 A CN104348593 A CN 104348593A CN 201310346467 A CN201310346467 A CN 201310346467A CN 104348593 A CN104348593 A CN 104348593A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
The invention discloses a method for frame confirmation. The method comprises the following steps that after the downlink service data dispatching and resource allocation completion, feedback resources are allocated to the uplink of the current physical frame; or after the uplink service data dispatching and resource allocation completion, feedback resources are allocated at the downlink of a next frame and are used for sending a group confirming answer Group ACK; according to the allocated feedback resources, a corresponding feedback resource control signaling is encapsulated, and the feedback resource control signaling is used for indicating feedback resource allocation; and the feedback resource control signaling is sent at the physical frame control channel. The invention also discloses a device for frame confirmation. When the method and the device provided by the invention are adopted, in a wireless communication system with uplink and downlink frame structures based on integrated dispatching, the sending and the confirmation of the data grouping in an MAC frame form in the MAC grade are realized, the group confirmation realizes the lowest confirmation delay and very high reliability at lowest complexity degree, and the resource dispatching and the retransmission dispatching can be favorably realized.
Description
Technical field
The invention belongs to wireless communication field, particularly relate to a kind of method and apparatus for frame acknowledgment.
Background technology
IEEE802.11 system is the system based on competition, and the strategy of the instant type adopted response (ack) is simply effective.Such as, be widely used the strategy of ack in IEEE802.11a/b/g, namely website is receiving unicast frame (as DATA frame), and feeding back ACK frame confirms immediately.In IEEE802.11n system, have employed HT Block ACK mechanism and confirmation is combined to a collection of packet, thus improve efficiency.Especially, the block ack strategy of HT immediate-type be for HT website between the efficient Block ack mechanism of one, namely, when a HT website have sent a collection of aggregate frame and the ack policy position that it carries is set as normal ack, just acquiescence adopts immediate-type to confirm.In addition, IEEE802.11n also defines delaying type ack strategy, if adopt delaying type ACK, the transmission delay of grouping can strengthen, and is unfavorable for transmitting the business to delay sensitive.
The existing communication system based on centralized scheduling, as in IEEE802.16 and Long Term Evolution (Long Term Evolution is called for short LTE) system, all have employed based on hybrid automatic repeat-request (HARQ-ack) mechanism.HARQ mechanism confirms for Physical Resource Block, and ageing and validity is guaranteed, but it unavoidably brings the complexity of realization, and compared with the ACK mechanism of the MAC rank of IEEE802.11 system, its reliability is also had a greatly reduced quality.
The descending HARQ mechanism of LTE system is briefly described as follows, and the down channel of its system comprises control signal, reference signal and data-signal.Wherein DSCH Downlink Shared Channel (PDSCH) transmits descending data-signal, and descending control signaling (PDCCH) transmits data transmission scheduling result.Upward signal also comprises control signal and data-signal.Ascending control channel (PUSCH) can be utilized to transmit uplink control signal, comprise ACK/NACK, CQI instruction etc.HARQ-ack mechanism in LTE system confirms for physical sub-frame, and the rlc layer of LTE system needs the transmission block (TB) comparing complicated segmentation and recombinate to ensure to adapt to physical layer.
In IEEE802.16 system, also add H-ARQ strategy, need to compare complicated segmentation to form HARQ attached bag, H-ARQ confirms for HARQ attached bag.In a word, HARQ result in that the reliability of system is lower and implementation complexity is higher, and validity then increases.The MAC layer of 802.16 systems have employed optional ARQ strategy, but owing to being needed to dispatch as uplink data frames by ACK, cause the efficiency that confirms low and postpone comparatively large, implementation complexity is lower.
The ARQ function of the MAC layer of 802.16 systems is optional, and the scheduling of ACK is not instant, and it is also higher that it postpones larger scheduling complexity.Its ARQ requires to confirm ARQ-BLOCK simultaneously, and ARQ-BLOCK attached bag needs segmentation, causes the efficiency of frame acknowledgment lower.
Summary of the invention
In view of this, an object of the present invention is to provide a kind of method and apparatus for frame acknowledgment.There is a basic understanding some aspects in order to the embodiment to disclosure, shown below is simple summary.This summarized section is not extensive overview, neither determine key/critical component or describe the protection range of these embodiments.Its sole purpose presents some concepts by simple form, in this, as the preamble of following detailed description.
A kind of method for frame acknowledgment that another object of the present invention is to provide, comprising:
After the scheduling of downlink service data and Resourse Distribute complete, at the uplink assignment feedback resources of this physical frame; Or, after the scheduling of uplink business data and Resourse Distribute complete, at the descending distribution feedback resources of next frame, for sending group acknowledge response Group ACK;
According to the feedback resources distributed, the feedback resources control signal that encapsulation is corresponding, this feedback resources control signal is used to indicate the distribution of feedback resources;
This feedback resources control signal is sent at the control channel of physical frame.
In some optional embodiments, described feedback resources is: transmission channel resources, or, short signaling channel resource.
In some optional embodiments, after the scheduling of the downlink service data of N frame and Resourse Distribute complete, be the descending user be scheduled of N frame, up at N frame, distribute corresponding uplink transport channel resource or uplink short message signaling channel resource, for sending the group acknowledge response Group ACK of MAC layer;
According to the uplink transport channel resource of distributing or uplink short message signaling channel resource, the feedback resources control channel signaling that encapsulation is corresponding;
This feedback resources control signal is sent at the control channel of N frame.
In some optional embodiments, also comprise:
The descending user be scheduled carries out demodulation at N frame to control channel, obtains corresponding downlink transfer resource indication signaling information and feedback resources control signal information; Wherein, described feedback resources is: uplink transport channel resource or uplink short message signaling channel resource.
In some optional embodiments, also comprise:
User is after receiving the one or more MAC grouping MPDU in corresponding downlink transfer resource, generate the confirmation response of one or more MPDU, and be encapsulated as the group acknowledge response GroupACK of MAC layer, in the uplink transport channel or uplink short message signaling channel of N frame, send to CAP.
In some optional embodiments, also comprise:
After the scheduling of the uplink business data of N frame and Resourse Distribute complete, be the up user be scheduled of N frame, descending at N+1 frame, distributes corresponding descending transmission channel resource or downlink short message signaling channel resource, for sending the group acknowledge response Group ACK of MAC layer;
According to the descending transmission channel resource of distributing or downlink short message signaling channel resource, the feedback resources control signal that encapsulation is corresponding;
This feedback resources control signal is sent at the control channel of N+1 frame.
In some optional embodiments, also comprise:
The up user be scheduled carries out demodulation at N frame to control channel, obtains the indication signaling information of corresponding uplink transport channel resource, carries out demodulation at N+1 frame to control channel, obtains corresponding feedback resources control signal information; Wherein, described feedback resources is: descending transmission channel resource or downlink short message signaling channel resource.
In some optional embodiments, also comprise:
CAP is after one or more MAC that N frame receives in corresponding uplink transport channel resource divide into groups MPDU, generate the confirmation response of one or more MPDU, and be encapsulated as the group acknowledge response Group ACK of MAC layer, send in the descending transmission channel or downlink short message signaling channel of N+1 frame.
In some optional embodiments, the descending transmission channel of this frame that described control channel can indicate the up user be scheduled of previous frame corresponding or the feedback resource allocation of downlink short message signaling channel, send group acknowledge response Group ACK for CAP; And/or, indicate the uplink transport channel of the descending user be scheduled of this frame or the feedback resource allocation of uplink short message signaling channel, send group acknowledge response Group ACK for STA.
A kind of device for frame acknowledgment that another object of the present invention is to provide, comprising:
Distribution module, for after the scheduling of downlink service data and Resourse Distribute complete, at the uplink assignment feedback resources of this physical frame; Or, for after the scheduling of uplink business data and Resourse Distribute complete, at the descending distribution feedback resources of next frame, to send group acknowledge response Group ACK;
Package module, for the feedback resources according to distribution, the feedback resources control signal that encapsulation is corresponding, described feedback resources control signal is used to indicate the distribution of feedback resources; With,
Sending module, for sending described feedback resources control signal at the control channel of physical frame.
In some optional embodiments, described feedback resources is: transmission channel resources, or, short signaling channel resource.
In some optional embodiments, described distribution module, after completing specifically for the scheduling of the downlink service data at N frame and Resourse Distribute, be the descending user be scheduled of N frame, up at N frame, distribute corresponding uplink transport channel resource or uplink short message signaling channel resource, for sending the group acknowledge response Group ACK of MAC layer;
Described package module, specifically for according to the uplink transport channel resource of distributing or uplink short message signaling channel resource, encapsulates corresponding feedback resources control signal;
Described sending module, specifically for sending this feedback resources control signal at the control channel of N frame.
In some optional embodiments,
Described distribution module, after also completing for the scheduling of the uplink business data at N frame and Resourse Distribute, be the up user be scheduled of N frame, descending at N+1 frame, distribute corresponding descending transmission channel resource or downlink short message signaling channel resource, for sending group acknowledge response Group ACK;
Described package module, also for according to the descending transmission channel resource of distributing or downlink short message signaling channel resource, encapsulates corresponding feedback resources control signal;
Described sending module, specifically for sending this feedback resources control signal at the control channel of N+1 frame.
In some optional embodiments, also comprise:
Generation module, for after receiving the one or more MAC layer grouping MPDU in corresponding uplink transport channel resource, generates the confirmation response of one or more MPDU, and is encapsulated as the group acknowledge response Group ACK of MAC layer;
Second sending module, for sending this Group ACK in the descending transmission channel or downlink short message signaling channel of N+1 frame.
In some optional embodiments, the descending transmission channel of this frame that described control channel can indicate the up user be scheduled of previous frame corresponding or the Resourse Distribute of downlink short message signaling channel, send group acknowledge response Group ACK for CAP; And/or, indicate the uplink transport channel of the descending user be scheduled of this frame or the Resourse Distribute of uplink short message signaling channel, send Group ACK for STA.
A kind of device for frame acknowledgment that another object of the present invention is to provide, comprising:
Receiver module, for receiving downstream physical frame;
Demodulation module, for carrying out demodulation to the control channel of this physical frame, obtains corresponding downlink transfer resource indication signaling information and feedback resources control signal information.
In some optional embodiments, described feedback resources is: uplink transport channel resource or uplink short message signaling channel resource.
In some optional embodiments, also comprise:
Generation module, for after receiving the one or more MAC layer grouping MPDU in corresponding downlink transfer resource, generates the confirmation response of one or more MPDU, and is encapsulated as the group acknowledge response Group ACK of MAC layer; With,
Sending module, for sending this GroupACK in the uplink transport channel or uplink short message signaling channel of this frame.
A kind of device for frame acknowledgment that another object of the present invention is to provide, comprising:
Receiver module, for receiving downstream physical frame;
Demodulation module, for carrying out demodulation to the control channel of this physical frame, obtains corresponding uplink transmission resource indication signaling information, also for carrying out demodulation to the control channel of next frame, obtains corresponding feedback resources control signal information.
In some optional embodiments, described feedback resources is: descending transmission channel resource or downlink short message signaling channel resource.
Adopt method and apparatus of the present invention, have following effect:
1, have in the wireless communication system of uplink/downlink frames structure based on centralized scheduling, realize in MAC level transmission and the confirmation of carrying out packet with the form of mac frame, this group acknowledge for cost with minimum complexity, achieves minimum confirmation and postpones and very high reliability.
2, group aggregate frame G-MPDU seldom comprises burst, makes the use reducing burst.
3, source scheduling mode realizes the transmission of ACK, and configuration up-downgoing channel, considers from sequential angle, configuration short signaling channel is forward, dispatches and transmits in signaling feedback channel, makes to send out to turn to receive ACK quarter in time receiving, time delay is little, and reaction is fast, is conducive to the scheduling of scheduling of resource and re-transmission.
4, polymerization, G-ACK.
In order to above-mentioned and relevant object, will describe in detail and the feature particularly pointed out in the claims after one or more embodiment comprises.Explanation below and accompanying drawing describe some illustrative aspects in detail, and its instruction is only some modes in the utilizable various mode of principle of each embodiment.Other benefit and novel features become obvious by considering by reference to the accompanying drawings along with detailed description below, and the disclosed embodiments will comprise all these aspects and theirs is equivalent.
figure of description
Fig. 1 is the system architecture schematic diagram of the short-distance and medium-distance wireless communication system of new definition;
Fig. 2 is the schematic diagram of the another kind of frame structure that the embodiment of the present invention provides;
Fig. 3 is the structural representation of G-MPDU;
Fig. 4 is the structural representation of G-MPDU;
Fig. 5 is the schematic flow sheet of a kind of method for frame acknowledgment that the embodiment of the present invention one provides;
Fig. 6 is the schematic diagram of the system frame structure of the up-downgoing scheduled transmission process that the embodiment of the present invention two to four provides;
Fig. 7 is the schematic diagram of the another kind of frame structure that the embodiment of the present invention five provides;
Fig. 8 is the schematic diagram of the system frame structure of the up-downgoing scheduled transmission process that the embodiment of the present invention six to nine provides;
Fig. 9 is the schematic diagram of a kind of device for frame acknowledgment that the embodiment of the present invention ten provides;
Figure 10 is the schematic diagram of the another kind that provides of the embodiment of the present invention ten for the device of frame acknowledgment;
Figure 11 is the schematic diagram of the another kind that provides of the embodiment of the present invention 11 for the device of frame acknowledgment;
Figure 12 is the schematic diagram of the another kind that provides of the embodiment of the present invention 12 for the device of frame acknowledgment.
Embodiment
The following description and drawings illustrate specific embodiment of the invention scheme fully, to enable those skilled in the art to put into practice them.Other embodiments can comprise structure, logic, electric, process and other change.Embodiment only represents possible change.Unless explicitly requested, otherwise independent assembly and function are optional, and the order of operation 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 comprises the gamut of claims, and all obtainable equivalent of claims.In this article, these embodiments of the present invention can be represented with term " invention " individually or always, this is only used to conveniently, and if in fact disclose the invention more than, be not the scope that automatically will limit this application is any single invention or inventive concept.
The embodiment of the present invention realizes based on a kind of wireless communication system, and this system possesses following features, and be divided into the descending and uplink frame cycle in Physical Frame Structure, the uplink/downlink frames cycle includes data transmission channel and signaling channel.This wireless communication system needs centralized scheduling, and the resource needs in downlink frame cycle and uplink frame cycle are carried out the dispatching distribution concentrated by CAP.See Fig. 1, the figure shows the PHY layer frame structure of the short-distance and medium-distance wireless communication system of new definition, frame structure as shown in Figure 2.In frame structure, the definition of each subchannel is as shown in table 1.
Table 1
MAC PDU in this system need not carry out complicated burst and cutting, and the G-MPDU formed directly can send in DL-TCH and UL-TCH in Physical Frame Structure, as shown in Figure 3 and Figure 4.
Explain: ACK is usually scheduled in inside DL-TCH and UL-TCH and transmits, or be scheduled in inside the short signaling channel before transmission channel and transmit, when transmitting inside transmission channel, G-MPDU can be formed together with normal data frame.Above-mentioned G-MPDU is in order to decryption frame.
The embodiment of the present invention possesses in the employing centralized scheduling wireless communication system of up-downgoing structure at one, proposes a kind of in MAC rank, general immediate-type ACK strategy, thus realizes the confirmation of low delay and high reliability with minimum complexity.The method of the frame acknowledgment that the embodiment of the present invention provides, had both been applicable to management frames and had also been applicable to Frame.After transmitting terminal transmission frame, receiving terminal returns immediately and confirms response, to inform whether data described in transmitting terminal are successfully received, thus can send success or not to data and carries out effective monitoring.
In the embodiment of the present invention, central access point (CAP) is for the STA of access provides the entity of access services; STA has medium education (MAC) and physical layer (PHY) functional interface, the terminal equipment that can communicate with CAP.Communicated by physical frame between CAP and STA, each physical frame cycle comprises downstream cycle and upward cycle successively: CAP sends data at downstream cycle to STA; STA sends data at upward cycle to CAP.
In this wireless communication system, by distribution and the scheduling feature of CAP completion system resource, scheduling result is broadcast to user by Resourse Distribute control signal CCH.
Wherein the descending scheduling of CAP mainly completes the Resourse Distribute in the downlink frame cycle, comprising: the Resourse Distribute of DL-TCH business and the generation of CCH control signal.
Uplink scheduling mainly completes the Resourse Distribute in the uplink frame cycle, comprising: the Resourse Distribute of UL-TCH business and the generation of CCH control signal.
The instant type ACK method proposed in the embodiment of the present invention is scheduling by system and the corresponding CCH control signal produced realizes.The up-downgoing scheduling result information of N frame, needs to be ready in advance before N frame physical frame sends.
Embodiment one
The embodiment of the present invention one proposes a kind of method for frame acknowledgment, as shown in Figure 5, comprising:
Step S101: after the scheduling of downlink service data and Resourse Distribute complete, at the uplink assignment feedback resources of this physical frame; Or, after the scheduling of uplink business data and Resourse Distribute complete, at the descending distribution feedback resources of next frame, for sending group acknowledge response Group ACK;
Step S102: according to the feedback resources distributed, the feedback resources control signal that encapsulation is corresponding, this feedback resources control signal is used to indicate the distribution of feedback resources.
Step S103: send this feedback resources control signal at the control channel of physical frame.
Preferably, feedback resources is: transmission channel resources, or, short signaling channel resource.
Preferably, this control channel can indicate the descending transmission channel of this frame or the feedback resource allocation of downlink short message signaling channel of the correspondence of the up user be scheduled of previous frame, sends group acknowledge response Group ACK for CAP; And/or, indicate the uplink transport channel of the descending user be scheduled of this frame or the feedback resource allocation of uplink short message signaling channel, send Group ACK for STA.
Preferably, CAP, after the scheduling of downlink service data and Resourse Distribute complete, also encapsulates downlink transfer resource indication signaling, for sending business datum.And be also send to STA at the control channel at physical frame.
Preferably, CAP, after the scheduling of uplink business data and Resourse Distribute complete, also encapsulates uplink transmission resource indication signaling, for sending business datum.And be also send to STA at the control channel at physical frame.
Preferably, the instruction of the control channel of this physical frame be the resource allocation conditions of the uplink/downlink of this physical frame, specific as follows:
When the uplink assignment feedback resources at this physical frame, then accordingly, this feedback resources control signal is sent at the control channel of this physical frame;
When the descending distribution feedback resources at next frame, then accordingly, this feedback resources control signal is sent at the control channel of next frame.
Embodiment two
The embodiment of the present invention two proposes a kind of method for frame acknowledgment, as shown in Figure 6, comprising:
Step S201:CAP is after the scheduling of the downlink service data of N frame and Resourse Distribute complete, be the descending user be scheduled of N frame, in the uplink transport channel of N frame, distribute corresponding uplink feedback resource, for sending the group acknowledge response Group ACK of MAC layer.
Step S202:CAP is according to the uplink transmission resource of distributing, and encapsulate corresponding feedback resources control channel signaling, this feedback resources control signal is used to indicate the distribution of feedback resources;
Preferably, CAP, after the scheduling of downlink service data and Resourse Distribute complete, also encapsulates downlink transfer resource indication signaling, for sending downlink service data.
Step S203:CAP sends this feedback resources control signal at the control channel of N frame, and this feedback resources control signal is uplink transport channel resources control.
Preferably, CAP also sends downlink transfer resource indication signaling at the control channel of N frame.
Preferably, also comprise:
Step S204: the descending user STA be scheduled carries out demodulation at N frame to control channel, obtains corresponding downlink transfer resource indication signaling information and uplink transport channel resource control signaling information.
Preferably, also comprise:
Step S205: the descending user STA be scheduled after receiving the one or more MAC grouping MPDU in corresponding downlink transfer resource, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send to CAP in the uplink transport channel of N frame.
Preferably, the feedback resource allocation of the descending transmission channel of this frame that control channel can indicate the up user be scheduled of previous frame corresponding, sends group acknowledge response Group ACK for CAP; And/or, indicate the feedback resource allocation of the uplink transport channel of the descending user be scheduled of this frame, send Group ACK for STA.
Embodiment three
The embodiment of the present invention three proposes a kind of method for frame acknowledgment, as shown in Figure 6, comprising:
Step S301:CAP, after the scheduling of the uplink business data of N frame and Resourse Distribute complete, is the up user be scheduled of N frame, descending at N+1 frame, distributes corresponding descending transmission channel resource, for sending group acknowledge response Group ACK.
Step S302:CAP is according to the descending transmission channel resource of distributing, and encapsulate corresponding feedback resources control signal, this feedback resources control signal is used to indicate the distribution of feedback resources;
Preferably, CAP, after the scheduling of uplink business data and Resourse Distribute complete, also encapsulates uplink transmission resource indication signaling, for sending uplink business data.
Step S303:CAP sends this feedback resources control signal at the control channel of N+1 frame, and this feedback resources control signal is descending transmission channel resource control signaling.
Preferably, CAP also sends uplink transmission resource indication signaling at the control channel of N+1 frame.
Preferably, also comprise:
Step S304: the up user be scheduled carries out demodulation at N frame to control channel, obtains corresponding uplink transmission resource indication signaling information, and sends business datum to CAP; , at N+1 frame, demodulation is carried out to control channel, obtains corresponding descending transmission channel resource control signaling information.
Preferably, also comprise:
Step S305:CAP is after one or more MAC that N frame receives in corresponding uplink transmission resource divide into groups MPDU, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send in the descending transmission channel of N+1 frame.
Preferably, the feedback resource allocation of the descending transmission channel of this frame that control channel can indicate the up user be scheduled of previous frame corresponding, sends group acknowledge response Group ACK for CAP; And/or, indicate the feedback resource allocation of the uplink transport channel of the descending user be scheduled of this frame, send GroupACK for STA.
Embodiment four
The embodiment of the present invention four proposes a kind of method for frame acknowledgment, as shown in Figure 6, comprising:
Step S401:CAP is after the scheduling of the downlink service data of N frame and Resourse Distribute complete, be the descending user be scheduled of N frame, in the uplink transport channel of N frame, distribute corresponding uplink feedback resource, for sending the group acknowledge response Group ACK of MAC layer.
Step S402:CAP is according to the uplink transmission resource of distributing, and encapsulate corresponding feedback resources control channel signaling, this feedback resources control signal is used to indicate the distribution of feedback resources;
Preferably, CAP, after the scheduling of downlink service data and Resourse Distribute complete, also encapsulates downlink transfer resource indication signaling, for sending downlink service data.
Step S403:CAP sends this feedback resources control signal at the control channel of N frame, and this feedback resources control signal is uplink short message signaling channel resource control signaling.
Preferably, CAP also sends downlink transfer resource indication signaling at the control channel of N frame.
Preferably, also comprise:
Step S404: the descending user STA be scheduled carries out demodulation at N frame to control channel, obtains corresponding downlink transfer resource indication signaling information and uplink transport channel resource control signaling information.
Preferably, also comprise:
Step S405: the descending user STA be scheduled after receiving the one or more MAC grouping MPDU in corresponding downlink transfer resource, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send to CAP in the uplink transport channel of N frame.
Step S406:CAP, after the scheduling of the uplink business data of N frame and Resourse Distribute complete, is the up user be scheduled of N frame, descending at N+1 frame, distributes corresponding descending transmission channel resource, for sending group acknowledge response Group ACK.
Step S407:CAP, according to the descending transmission channel resource of distributing, encapsulates corresponding feedback resources control signal;
Preferably, CAP, after the scheduling of uplink business data and Resourse Distribute complete, also encapsulates uplink transmission resource indication signaling, for sending uplink business data.
Step S408:CAP sends this feedback resources control signal at the control channel of N+1 frame, and this feedback resources control signal is downlink short message signaling channel resource control signaling.
Preferably, CAP also sends uplink transmission resource indication signaling at the control channel of N+1 frame.
Preferably, also comprise:
Step S409: the up user be scheduled carries out demodulation at N frame to control channel, obtains corresponding uplink transmission resource indication signaling information, and sends business datum to CAP; At N+1 frame, demodulation is carried out to control channel, obtain corresponding descending transmission channel resource control signaling information.
Preferably, also comprise:
Step S410:CAP receives the one or more MAC groupings in corresponding uplink transmission resource at N frame after, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send in the descending transmission channel of N+1 frame.
Preferably, control channel is used to indicate the feedback resource allocation of the descending transmission channel of this frame corresponding to the up user be scheduled of previous frame, sends group acknowledge response Group ACK for CAP; And/or, indicate the feedback resource allocation of the uplink transport channel of the descending user be scheduled of this frame, send GroupACK for STA.
Embodiment five
As shown in Figure 7, be that the DL-TCH descending transmission channel in the frame structure of Fig. 2 is specifically divided into two parts: head part: DL-TCH downlink short message signaling channel, and rear section: DL-TCH descending transmission channel; UL-TCH uplink transport channel is specifically divided into two parts: head part: UL-TCH uplink short message signaling channel, and rear section: UL-TCH descending transmission channel.DL-TCH downlink short message signaling channel and UL-TCH uplink short message signaling channel are for sending ACK; DL-TCH descending transmission channel and UL-TCH uplink transport channel are for sending business datum.
Embodiment six
The embodiment of the present invention six proposes a kind of method for frame acknowledgment, as shown in Figure 8, comprising:
Step S501:CAP is after the scheduling of the downlink service data of N frame and Resourse Distribute complete, be the descending user be scheduled of N frame, up at N frame, distributes corresponding uplink short message signaling channel resource, for sending the group acknowledge response Group ACK of MAC layer.
Step S502:CAP is according to the uplink short message signaling channel resource of distributing, and encapsulate corresponding feedback resources control signal, this feedback resources control signal is used to indicate the distribution of feedback resources;
Preferably, CAP, after the scheduling of downlink service data and Resourse Distribute complete, also encapsulates downlink transfer resource indication signaling, for sending downlink service data.
Step S503:CAP sends this feedback resources control signal at the control channel of N frame, and this feedback resources control signal is uplink short message signaling channel resource control signaling.
Preferably, CAP also sends downlink transfer resource indication signaling at the control channel of N frame.
Also comprise:
Step S504: the descending user STA be scheduled carries out demodulation at N frame to control channel, obtains corresponding downlink transfer resource indicator information and uplink short message signaling channel resource control signaling information.
Also comprise:
Step S505: the descending user STA be scheduled after receiving the grouping in corresponding downlink transfer resource, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer.
Preferably, control channel is used to indicate the feedback resource allocation of the downlink short message signaling channel of this frame corresponding to the up user be scheduled of previous frame, sends group acknowledge response Group ACK for CAP; And/or, indicate the feedback resource allocation of the uplink short message signaling channel of the descending user be scheduled of this frame, send Group ACK for STA.
Embodiment seven
The embodiment of the present invention seven proposes a kind of method for frame acknowledgment, as shown in Figure 8, comprising:
Step S601:CAP, after the scheduling of the uplink business data of N frame and Resourse Distribute complete, is the up user be scheduled of N frame, descending at N+1 frame, distributes corresponding downlink short message signaling channel resource, for sending ACK.
Step S602:CAP is according to the downlink short message signaling channel resource of distributing, and encapsulate corresponding feedback resources control signal, this feedback resources control signal is used to indicate the distribution of feedback resources;
Preferably, CAP, after the scheduling of uplink business data and Resourse Distribute complete, also encapsulates uplink transmission resource indication signaling, for sending uplink business data.
Step S603:CAP sends this feedback resources control signal at the control channel of N+1 frame, and this feedback resources control signal is descending transmission channel resource control signaling.
Preferably, CAP also sends uplink transmission resource indication signaling at the control channel of N+1 frame.
Preferably, also comprise:
Step S604: the up user be scheduled carries out demodulation at N frame to control channel, obtains corresponding uplink transmission resource indication signaling, and sends business datum to CAP; At N+1 frame, demodulation is carried out to control channel, obtain corresponding descending transmission channel resource control signaling information.
Preferably, also comprise:
Step S605:CAP is after receiving the one or more MAC grouping MPDU in corresponding uplink transmission resource, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send in the downlink short message signaling channel of N+1 frame.
Preferably, the feedback resource allocation of the downlink short message signaling channel of this frame that control channel can indicate the up user be scheduled of previous frame corresponding, sends group acknowledge response Group ACK for CAP; And/or, indicate the feedback resource allocation of the uplink short message signaling channel of the descending user be scheduled of this frame, send Group ACK for STA.
Embodiment eight
The embodiment of the present invention eight proposes a kind of method for frame acknowledgment based on the frame structure of embodiment five, as shown in Figure 8, comprising:
Step S701:CAP, after the scheduling of the downlink service data of N frame and Resourse Distribute complete, is the descending user be scheduled of N frame, up at N frame, distributes corresponding uplink short message signaling channel resource, for sending group acknowledge response Group ACK.
Step S702:CAP is according to the uplink short message signaling channel resource of distributing, and encapsulate corresponding feedback resources control signal, this feedback resources control signal is used to indicate the distribution of feedback resources;
Step S703:CAP sends this feedback resources control signal at the control channel of N frame, and this feedback resources control signal is uplink short message signaling channel resource control signaling.
Preferably, CAP also sends downlink transfer resource indication signaling at the control channel of N frame.
Preferably, also comprise:
Step S704: the descending user STA be scheduled carries out demodulation at N frame to control channel, obtains corresponding downlink transfer resource indication signaling information and uplink short message signaling channel resource control signaling information.
Preferably, also comprise:
Step S705: the descending user STA be scheduled after receiving the one or more MAC grouping MPDU in corresponding downlink transfer resource, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send to CAP in the uplink short message signaling channel of N frame.
Preferably, also comprise:
Step S706:CAP, in the uplink business data scheduling of N frame with after Resourse Distribute completes, is the up user be scheduled of N frame, descending at N+1 frame, distributing corresponding downlink short message signaling channel resource, replying Group ACK for sending group acknowledge.
Step S707:CAP, according to the downlink short message signaling channel resource of distributing, encapsulates corresponding feedback resources control signal;
Step S708:CAP sends this feedback resources control signal at the control channel of N+1 frame, and this feedback resources control signal is downlink short message signaling channel resource control signaling.
Preferably, CAP also sends uplink transmission resource indication signaling at the control channel of N+1 frame.
Preferably, also comprise:
Step S709: the up user be scheduled carries out demodulation at N frame to control channel, obtains corresponding uplink transmission resource indication signaling information, and sends business datum to CAP; At N+1 frame, demodulation is carried out to control channel, obtain corresponding downlink short message signaling channel resource control signaling information.
Preferably, also comprise:
Step S710:CAP receives the one or more MAC groupings in corresponding uplink transmission resource at N frame after, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send in the downlink short message signaling channel of N+1 frame.
Preferably, the feedback resource allocation of the downlink short message signaling channel of this frame that control channel can indicate the up user be scheduled of previous frame corresponding, sends group acknowledge response Group ACK for CAP; And/or, indicate the feedback resource allocation of the uplink short message signaling channel of the descending user be scheduled of this frame, send Group ACK for STA.
Embodiment nine
The embodiment of the present invention nine is embody rule embodiment.
The schematic diagram of the system frame structure of the up-downgoing scheduled transmission process that Fig. 8 provides for application example.
As shown in Figure 8, frame is divided targeting sequencing, system information channel, control channel, downlink short message signaling channel, downlink traffic transmission channel, descending protection interval D GI, uplink detection channel, uplink scheduling request channel, uplink short message signaling channel, uplink traffic transmission channel, uplink random access channel and up protection interval UGI.
Wherein, targeting sequencing specifically comprises short leading and long preambles.
Certain CAP is associated with 3 STA:STA1, STA2 and STA3.
Wherein, descending general instant ack strategy comprises the steps:
Step S801:CAP is after the scheduling of the downlink service data of N frame and Resourse Distribute complete, for the descending user be scheduled at the corresponding feedback resources of the uplink assignment of N frame for sending Group ACK, as shown in Figure 8, be STA(1 inside the CCH of N frame) or STA(2) be assigned with up short signaling channel resource for sending Group ACK.
Step S802:CAP is that the scheduling result of above-mentioned ACK produces corresponding CCH signaling, and sends at the CCH control channel of N frame.
Step S803:STA(1) or STA(2) at N frame, demodulation is carried out to control channel CCH, the descending TCH resource of the correspondence of acquisition and up ACK feedback resources.After its one or more MAC received in corresponding DL-TCH divide into groups MPDU, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and the Group ACK sending instant type in the uplink short message signaling channel distributed confirms.
For up general instant ACK strategy, comprise following steps:
Step S804:CAP is when the uplink scheduling of N frame completes, and the transmission user determining the UL-TCH of N frame is STA(3), so need to guarantee that at N+1 frame be the uplink user STA(3 of N frame scheduling) allocation of downlink resource, for sending ACK immediately.Such as, in Fig. 8, the up STA3 of N frame scheduling, so N+1 frame can be STA(3) distribute DL short signaling resource for sending immediate-type ACK.
Step S805:CAP is that the scheduling result of above-mentioned ACK produces corresponding CCH signaling, and this signaling sends at the CCH control channel of N+1 frame.
Step S806:STA3 after N frame demodulation CCH, the up TCH resource of the correspondence of acquisition, and send business datum in UL-TCH.
Step S807:CAP is at N frame, the one or more MAC received in the UL-TCH of STA3 divide into groups after MPDU, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer, and send Group ACK in the downlink short message signaling channel of N+1 frame.
Embodiment ten
In order to realize said method, embodiments providing a kind of device for frame acknowledgment (network equipment CAP), as shown in Figure 9, comprising:
Distribution module 11, for after the scheduling of downlink service data and Resourse Distribute complete, at the uplink assignment feedback resources of this physical frame; Or, after the scheduling of uplink business data and Resourse Distribute complete, at the descending distribution feedback resources of next frame, to send group acknowledge response Group ACK;
Package module 12, for the feedback resources according to distribution, the feedback resources control signal that encapsulation is corresponding, this feedback resources control signal is used to indicate the distribution of feedback resources; With,
Sending module 13, for sending this feedback resources control signal at the control channel of physical frame.
Preferably, feedback resources is: transmission channel resources, or, short signaling channel resource.
Further, descending ACK strategy, said apparatus also can have following characteristics:
Distribution module 11, after completing specifically for the scheduling of the downlink service data at N frame and Resourse Distribute, be the descending user be scheduled of N frame, up at N frame, distribute corresponding uplink transport channel resource or uplink short message signaling channel resource, for sending the group acknowledge response GROUP ACK of MAC layer.
Package module 12, specifically for according to the uplink transport channel resource of distributing or uplink short message signaling channel resource, encapsulates corresponding feedback resources control channel signaling;
Sending module 13, specifically for sending this feedback resources control signal at the control channel of N frame.
Further, uplink ACK strategy, said apparatus also can have following characteristics:
Distribution module 11, after also completing for the scheduling of the uplink business data at N frame and Resourse Distribute, be the up user be scheduled of N frame, descending at N+1 frame, distribute corresponding descending transmission channel resource or downlink short message signaling channel resource, for sending group acknowledge response Group ACK;
Package module 12, also for according to the descending transmission channel resource of distributing or downlink short message signaling channel resource, encapsulates corresponding feedback resources control signal;
Sending module 13, specifically for sending this feedback resources control signal at the control channel of N+1 frame.
As shown in Figure 10, further, said apparatus also comprises:
Generation module 14, for after receiving the grouping in corresponding uplink transmission resource, generates the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer;
Second sending module 15, for sending this Group ACK in the descending transmission channel or downlink short message signaling channel of N+1 frame.
Further, said apparatus also can have following characteristics:
The descending transmission channel of this frame that control channel can indicate the up user be scheduled of previous frame corresponding or the feedback resource allocation of downlink short message signaling channel, send group acknowledge response Group ACK for CAP; And/or, indicate the uplink transport channel of the descending user be scheduled of this frame or the feedback resource allocation of uplink short message signaling channel, send Group ACK for STA.
Embodiment 11
In order to realize said method, embodiments providing a kind of device for frame acknowledgment (terminal equipment STA), as shown in figure 11, comprising:
Receiver module 21, for receiving downstream physical frame;
Demodulation module 22, for carrying out demodulation to the control channel of this physical frame, obtains corresponding downlink transfer resource indication signaling information and feedback resources control signal information;
Preferably, this feedback resources is: uplink transport channel resource or uplink short message signaling channel resource;
Preferably, also comprise:
Generation module 23, for after receiving the one or more groupings in corresponding downlink transfer resource, generate the confirmation response of one or more MPDU, and the confirmation of one or more MPDU described response is encapsulated as the group acknowledge response Group ACK of MAC layer; With,
Sending module 24, for sending this Group ACK in the uplink transport channel or uplink short message signaling channel of this frame.
Embodiment 12
In order to realize said method, the embodiment of the present invention additionally provides a kind of device for frame acknowledgment (terminal equipment STA), as shown in figure 12, comprising:
Receiver module 31, for receiving downstream physical frame;
Demodulation module 32, for carrying out demodulation to the control channel of this physical frame, obtains corresponding uplink transmission resource indication signaling information, also for carrying out demodulation to next frame to control channel, obtains corresponding feedback resources control signal information;
Preferably, this feedback resources is descending transmission channel resource or downlink short message signaling channel resource.
Adopt the method and apparatus that the embodiment of the present invention adopts, realize in MAC level transmission and the confirmation of carrying out packet with the form of mac frame, this group acknowledge for cost with minimum complexity, achieves minimum confirmation and postpones and very high reliability; Short signaling channel is forward, and time delay is little, and reaction is fast, is conducive to the scheduling of scheduling of resource and re-transmission; And organize aggregate frame G-MPDU and seldom comprise burst, reduce the use of burst.
Unless otherwise specific statement, term such as processes, calculate, computing, determine, to show etc. action and/or the process that can refer to one or more process or computing system or similar devices, the data manipulation that the physics (as electronics) be expressed as in the register for the treatment of system or memory is measured by described action and/or process and be converted into that the memory, register or other this type of informations that are expressed as treatment system similarly store, other data of physical quantity in transmitting or display device.Information and signal can use any one in multiple different techniques and methods to represent.Such as, the data mentioned in the description on run through, instruction, order, information, signal, bit, symbol and chip can represent with voltage, electric current, electromagnetic wave, magnetic field or particle, light field or particle or its combination in any.
Should be understood that the particular order of the step in disclosed process or level are the examples of illustrative methods.Based on design preference, should be appreciated that, the particular order of the step in process or level can be rearranged when not departing from protection range of the present disclosure.Appended claim to a method gives the key element of various step with exemplary order, and is not to be limited to described particular order or level.
In above-mentioned detailed description, various feature is combined in single embodiment together, to simplify the disclosure.This open method should be interpreted as reflecting such intention, that is, the embodiment of theme required for protection needs the more feature of feature clearly stated in each claim.On the contrary, as appending claims reflect, the present invention is in the state fewer than whole features of disclosed single embodiment.Therefore, appending claims is clearly merged in detailed description hereby, and wherein every claim is alone as the preferred embodiment that the present invention is independent.
Those skilled in the art it is also understood that various illustrative box, module, circuit and the algorithm steps combining embodiment herein and describe all can be embodied as electronic hardware, computer software or its combination.In order to the interchangeability between hardware and software is clearly described, all carry out usually describing around its function to various illustrative parts, frame, module, circuit and step above.Be embodied as hardware as this function or be embodied as software, the design constraint depending on specific application and whole system is applied.Those skilled in the art for each application-specific, can realize described function in the mode of accommodation, but, thisly realize decision-making and should not be construed as and deviate from protection range of the present disclosure.
Step in conjunction with the method described by embodiment herein or algorithm directly can be presented as hardware, the software module performed by processor or its combination.Software module can be arranged in the storage medium of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, mobile disk, CD-ROM or other form any well known in the art.Exemplary storage medium is connected to a processor, thus enables processor from this read information, and can to this storage medium written information.Certainly, storage medium also can be the part of processor.Processor and storage medium can be arranged in ASIC.This ASIC can be arranged in user terminal.Certainly, processor and storage medium also can be present in user terminal as discrete assembly.
For software simulating, the technology described in the application can realize by the module (such as, process, function etc.) performing function described in the application.These software codes can be stored in memory cell and be performed by processor.Memory cell can be implemented in processor, also can be implemented in outside processor, and in the case of the latter, it is coupled to processor by correspondence via various means, and these are all well known in the art.
Description above comprises the citing of one or more embodiment.Certainly, all possible combination describing parts or method in order to describe above-described embodiment is impossible, but those of ordinary skill in the art should be realized that, each embodiment can do further combinations and permutations.Therefore, embodiment described herein is intended to contain all such changes, modifications and variations fallen in the protection range of appended claims.In addition, " comprise " with regard to the term used in specification or claims, the mode that contains of this word is similar to term and " comprises ", just as " comprising, " be in the claims used as link word explain such.In addition, be used in any one term in the specification of claims " or " be to represent " non-exclusionism or ".
Claims (20)
1. for a method for frame acknowledgment, it is characterized in that, comprising:
After the scheduling of downlink service data and Resourse Distribute complete, at the uplink assignment feedback resources of this physical frame; Or, after the scheduling of uplink business data and Resourse Distribute complete, at the descending distribution feedback resources of next frame, for sending group acknowledge response Group ACK;
According to the feedback resources distributed, the feedback resources control signal that encapsulation is corresponding, this feedback resources control signal is used to indicate the distribution of feedback resources;
This feedback resources control signal is sent at the control channel of physical frame.
2. the method for claim 1, is characterized in that, described feedback resources is: transmission channel resources, or, short signaling channel resource.
3. method as claimed in claim 2, is characterized in that:
After the scheduling of the downlink service data of N frame and Resourse Distribute complete, be the descending user be scheduled of N frame, up at N frame, distributes corresponding uplink transport channel resource or uplink short message signaling channel resource, for sending the group acknowledge response Group ACK of MAC layer;
According to the uplink transport channel resource of distributing or uplink short message signaling channel resource, the feedback resources control channel signaling that encapsulation is corresponding;
This feedback resources control signal is sent at the control channel of N frame.
4. method as claimed in claim 3, is characterized in that, also comprise:
The descending user be scheduled carries out demodulation at N frame to control channel, obtains corresponding downlink transfer resource indication signaling information and feedback resources control signal information; Wherein, described feedback resources is: uplink transport channel resource or uplink short message signaling channel resource.
5. method as claimed in claim 4, is characterized in that, also comprise:
User is after receiving the one or more MAC grouping MPDU in corresponding downlink transfer resource, generate the confirmation response of one or more MPDU, and be encapsulated as the group acknowledge response GroupACK of MAC layer, in the uplink transport channel or uplink short message signaling channel of N frame, send to CAP.
6. the method as described in any one of claim 2 to 5, is characterized in that, also comprise:
After the scheduling of the uplink business data of N frame and Resourse Distribute complete, be the up user be scheduled of N frame, descending at N+1 frame, distributes corresponding descending transmission channel resource or downlink short message signaling channel resource, for sending the group acknowledge response Group ACK of MAC layer;
According to the descending transmission channel resource of distributing or downlink short message signaling channel resource, the feedback resources control signal that encapsulation is corresponding;
This feedback resources control signal is sent at the control channel of N+1 frame.
7. method as claimed in claim 6, is characterized in that, also comprise:
The up user be scheduled carries out demodulation at N frame to control channel, obtains the indication signaling information of corresponding uplink transport channel resource, carries out demodulation at N+1 frame to control channel, obtains corresponding feedback resources control signal information; Wherein, described feedback resources is: descending transmission channel resource or downlink short message signaling channel resource.
8. method as claimed in claim 7, is characterized in that, also comprise:
CAP is after one or more MAC that N frame receives in corresponding uplink transport channel resource divide into groups MPDU, generate the confirmation response of one or more MPDU, and be encapsulated as the group acknowledge response Group ACK of MAC layer, send in the descending transmission channel or downlink short message signaling channel of N+1 frame.
9. the method for claim 1, it is characterized in that, the descending transmission channel of this frame that described control channel can indicate the up user be scheduled of previous frame corresponding or the feedback resource allocation of downlink short message signaling channel, send group acknowledge response Group ACK for CAP; And/or, indicate the uplink transport channel of the descending user be scheduled of this frame or the feedback resource allocation of uplink short message signaling channel, send group acknowledge response Group ACK for STA.
10. for a device for frame acknowledgment, it is characterized in that, comprising:
Distribution module, for after the scheduling of downlink service data and Resourse Distribute complete, at the uplink assignment feedback resources of this physical frame; Or, for after the scheduling of uplink business data and Resourse Distribute complete, at the descending distribution feedback resources of next frame, to send group acknowledge response Group ACK;
Package module, for the feedback resources according to distribution, the feedback resources control signal that encapsulation is corresponding, described feedback resources control signal is used to indicate the distribution of feedback resources; With,
Sending module, for sending described feedback resources control signal at the control channel of physical frame.
11. devices as claimed in claim 10, it is characterized in that, described feedback resources is: transmission channel resources, or, short signaling channel resource.
12. devices as described in claim 10 or 11, is characterized in that:
Described distribution module, after completing specifically for the scheduling of the downlink service data at N frame and Resourse Distribute, be the descending user be scheduled of N frame, up at N frame, distribute corresponding uplink transport channel resource or uplink short message signaling channel resource, for sending the group acknowledge response Group ACK of MAC layer;
Described package module, specifically for according to the uplink transport channel resource of distributing or uplink short message signaling channel resource, encapsulates corresponding feedback resources control signal;
Described sending module, specifically for sending this feedback resources control signal at the control channel of N frame.
13. devices as described in claim 10,11 or 12, is characterized in that:
Described distribution module, after also completing for the scheduling of the uplink business data at N frame and Resourse Distribute, be the up user be scheduled of N frame, descending at N+1 frame, distribute corresponding descending transmission channel resource or downlink short message signaling channel resource, for sending group acknowledge response Group ACK;
Described package module, also for according to the descending transmission channel resource of distributing or downlink short message signaling channel resource, encapsulates corresponding feedback resources control signal;
Described sending module, specifically for sending this feedback resources control signal at the control channel of N+1 frame.
14. devices as claimed in claim 13, is characterized in that, also comprise:
Generation module, for after receiving the one or more MAC layer grouping MPDU in corresponding uplink transport channel resource, generates the confirmation response of one or more MPDU, and is encapsulated as the group acknowledge response Group ACK of MAC layer;
Second sending module, for sending this Group ACK in the descending transmission channel or downlink short message signaling channel of N+1 frame.
15. devices as claimed in claim 10, it is characterized in that, the descending transmission channel of this frame that described control channel can indicate the up user be scheduled of previous frame corresponding or the Resourse Distribute of downlink short message signaling channel, send group acknowledge response Group ACK for CAP; And/or, indicate the uplink transport channel of the descending user be scheduled of this frame or the Resourse Distribute of uplink short message signaling channel, send Group ACK for STA.
16. 1 kinds for the device of frame acknowledgment, is characterized in that, comprising:
Receiver module, for receiving downstream physical frame;
Demodulation module, for carrying out demodulation to the control channel of this physical frame, obtains corresponding downlink transfer resource indication signaling information and feedback resources control signal information.
17. devices as claimed in claim 16, it is characterized in that, described feedback resources is: uplink transport channel resource or uplink short message signaling channel resource.
18. devices as claimed in claim 17, is characterized in that, also comprise:
Generation module, for after receiving the one or more MAC layer grouping MPDU in corresponding downlink transfer resource, generates the confirmation response of one or more MPDU, and is encapsulated as the group acknowledge response Group ACK of MAC layer; With,
Sending module, for sending this GroupACK in the uplink transport channel or uplink short message signaling channel of this frame.
19. 1 kinds for the device of frame acknowledgment, is characterized in that, comprising:
Receiver module, for receiving downstream physical frame;
Demodulation module, for carrying out demodulation to the control channel of this physical frame, obtains corresponding uplink transmission resource indication signaling information, also for carrying out demodulation to the control channel of next frame, obtains corresponding feedback resources control signal information.
20. devices as claimed in claim 19, it is characterized in that, described feedback resources is: descending transmission channel resource or downlink short message signaling channel resource.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193946A1 (en) * | 2016-05-13 | 2017-11-16 | 电信科学技术研究院 | Feedback information transmission method, ue, base station, and system |
| CN109792323A (en) * | 2016-09-29 | 2019-05-21 | 高通股份有限公司 | Using delay/scheduling block affirmation mechanism reliable Wi-Fi be grouped transmission |
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2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193946A1 (en) * | 2016-05-13 | 2017-11-16 | 电信科学技术研究院 | Feedback information transmission method, ue, base station, and system |
| CN109792323A (en) * | 2016-09-29 | 2019-05-21 | 高通股份有限公司 | Using delay/scheduling block affirmation mechanism reliable Wi-Fi be grouped transmission |
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Application publication date: 20150211 |