CN107534863B

CN107534863B - Resource scheduling method, device and equipment

Info

Publication number: CN107534863B
Application number: CN201580079141.XA
Authority: CN
Inventors: 于健; 乔登宇; 杨讯; 刘乐; 林梅露; 刘辰辰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-07-08
Filing date: 2015-07-08
Publication date: 2020-08-14
Anticipated expiration: 2035-07-08
Also published as: WO2017004819A1; CN107534863A

Abstract

The embodiment of the invention provides a resource scheduling method, which generates resource allocation information, wherein the resource allocation information comprises the following steps: aiming at the total bandwidth to be allocated, the method is used for simultaneously indicating the division condition of the default resource block and whether the target STA of each resource block is the index of the default STA; and sending the resource allocation information.

Description

Resource scheduling method, device and equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for resource scheduling.

Background

With the development of technologies such as Orthogonal Frequency Division Multiple Access (OFDMA) transmission technology, multi-User input/output (MU-MIMO) transmission technology, etc., current communication systems have been able to support multi-User transmission, i.e., support Multiple stations to transmit and receive data simultaneously.

However, the above-mentioned multi-user transmission (for example, including OFDMA, MU-MIMO or a hybrid transmission of OFDMA and MU-MIMO) needs to provide a solution for how to perform resource scheduling for multiple users.

Disclosure of Invention

The embodiment of the invention provides a method, a device and equipment for scheduling resources, which can support efficient indication of resource allocation information.

In one aspect, a method for resource scheduling is provided, which is applied to a wireless local area network, and includes

Generating resource allocation information, the resource allocation information comprising: aiming at the total bandwidth to be allocated, the method is used for simultaneously indicating the division condition of the default resource block and whether the target STA of each resource block is the index of the default STA;

and sending the resource allocation information.

In another aspect, a method for resource scheduling is provided, which is applied to a wireless local area network, and includes

Generating resource allocation information, the resource allocation information comprising: the indication of the resource block division condition, and for one or more divided resource blocks, information used for indicating whether a destination STA allocated within each resource block is a default STA, where the information includes an index, or a special station or station group identifier;

and sending the resource allocation information.

Preferably, the default STA is an STA participating in preamble transmission on a corresponding resource block, or an STA agreed in advance based on a beacon frame and a management frame.

In another aspect, a method for resource scheduling, applied to a wireless local area network, includes

Generating resource allocation information, the resource allocation information comprising: an indication of the condition of resource block partitioning, and, for one or more partitioned resource blocks, an index indicating that the MAC frame transmitted within each resource block contains a multicast MAC frame;

and sending the resource allocation information.

Correspondingly, a method for receiving resource scheduling is provided, which is characterized in that the method is applied to a wireless local area network and comprises the following steps

Receiving resource allocation information, the resource allocation information comprising: aiming at the total bandwidth to be allocated, the method is used for simultaneously indicating the division condition of the default resource block and whether a target station STA of each resource block is an index of the default station STA;

and if the STA is the default STA according to the index in the resource allocation information, transmitting data on the default resource block.

Receiving resource allocation information, the resource allocation information comprising: the indication of the resource block division condition, and for one or more divided resource blocks, information used for indicating whether a destination STA allocated within each resource block is a default STA, where the information includes an index, or a special station or station group identifier;

and according to the information in the resource allocation information, if the STA is a default STA, transmitting data on the default resource block. The transmission comprises either transmission or reception.

Correspondingly, the method for scheduling the resources is characterized by being applied to the wireless local area network and comprises the following steps

Receiving resource allocation information, the resource allocation information comprising: an indication of the condition of resource block partitioning, and, for one or more partitioned resource blocks, an index indicating that the MAC frame transmitted within each resource block contains a multicast MAC frame;

and according to the information in the resource allocation information, if the STA is a default STA, receiving multicast data on the default resource block.

Accordingly, apparatus is provided that may be used to perform the methods described above.

According to the method, the device and the equipment for resource scheduling provided by the embodiment of the invention, the indication of resource allocation can be carried out efficiently by simply indicating the default resource allocation information.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic flow chart of a method of resource scheduling according to an embodiment of the present invention.

Fig. 2 is a schematic architecture diagram of a WLAN system.

Fig. 3 is a simple diagram of one possible data structure of 802.11 ax.

Fig. 4 is a simplified schematic diagram of one possible structure of HE-SIG-B.

Fig. 5 is a simple diagram of the manner of resource block allocation for 20MHz bandwidth and its index.

Fig. 6 is a simple diagram of another resource block division and its index.

Fig. 7 is a simplified schematic of a default confirmation approach.

Fig. 8 is a simplified schematic diagram of another two default confirmation methods.

Fig. 9 is a simplified schematic of another default confirmation approach.

Fig. 10a and 10b are each a simplified schematic diagram of another default confirmation method.

Fig. 11a-11d are simplified schematic diagrams of default resource block allocation information and its index, respectively.

Fig. 12 is a simple diagram of a transmission flow of uplink OFDMA/MU-MIMO.

Fig. 13 is a simplified diagram of resource allocation information and its reception process.

Fig. 14 is a simplified schematic diagram of resource allocation information processing performed by one receiving end.

Fig. 15 is a simplified schematic diagram of another resource allocation information and its reception process.

Fig. 16 is a simple diagram of still another resource allocation information and a reception process thereof.

Fig. 17 is a schematic block diagram of an apparatus for resource scheduling according to an embodiment of the present invention.

Fig. 18 is a schematic block diagram of an apparatus for resource scheduling according to another embodiment of the present invention.

Fig. 19 is a schematic structural diagram of an apparatus for resource scheduling according to an embodiment of the present invention.

Fig. 20 is a schematic structural diagram of an apparatus for resource scheduling according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic flow chart of a method 100 for resource scheduling according to an embodiment of the present invention, which is described from the perspective of a transmitting end, the method 100 is applied to a wireless local area network, and the wireless local area network conforms to a next generation protocol in which one or more default resource block allocation information is agreed, as shown in fig. 1, and the method 100 includes:

s110, the sending end generates resource scheduling information, which includes an indication for the one or more default resource block allocation information. For example, the index is used for indicating the division condition of the resource block and the information of the default destination station at the same time; alternatively, in addition to the indication of resource block allocation, multicast is indicated by using the identifier of a specific station or station group, or a default destination station is indicated by using the identifier of a specific station or station group.

S120, sending the resource scheduling information.

Correspondingly, the receiving end method comprises the following steps:

s210, the receiving end receives resource scheduling information, which includes an indication for the one or more default resource block allocation information. For example, the index is used for indicating the division condition of the resource block and the information of the default destination station at the same time; or, in addition to the indication of resource block division, multicast is indicated by using an identifier of a specific station or station group, or a default destination station is indicated.

S220, if the resource scheduling information contains the indication of the default resource block allocation information and the receiving end needs to transmit according to the default resource block allocation information, the transmission is carried out according to a protocol convention or a manner agreed by both parties.

For the default STA, the receiving is consistent with the corresponding sending flow; for non-default STAs, no reception may be required and no transmission may be possible.

The method 100 can be applied to various communication systems that implement multi-user transmission by means of resource scheduling, for example, a system that performs communication by means of OFDMA or MU-MIMO.

Also, the method 100 may be applied to a Wireless Local Area Network (WLAN), such as a Wireless Fidelity (Wi-Fi).

Fig. 2 is a schematic diagram of a WLAN system. As shown in fig. 2, the WLAN system includes one or more access points AP21 and one or more stations STA 22. And carrying out data transmission between the access point and the station, wherein the station determines the resource scheduled to the station according to the lead code sent by the access point, and carrying out data transmission between the station and the access point based on the resource.

Optionally, the sending end is a network device, and the receiving end is a terminal device.

Specifically, as the sending end device, a network side device in the communication system may be enumerated, for example, an Access Point (AP) in the WLAN, where the AP may also be referred to as a wireless Access Point, a bridge, a hotspot, or the like, and may Access a server or a communication network.

As the receiving end device, a terminal device in the communication system may be enumerated, for example, a Station (STA) in the WLAN, the STA may also be referred to as a user, and may be a wireless sensor, a wireless communication terminal or a mobile terminal, such as a mobile phone (or referred to as a "cellular" phone) and a computer having a wireless communication function. For example, wireless communication devices, which may be portable, pocket-sized, hand-held, computer-embedded, wearable, or vehicle-mounted, exchange voice, data, etc., communication data with a radio access network.

It should be understood that the above-listed systems to which the method 100 of the embodiments of the present invention is applied are merely exemplary, and the present invention is not limited thereto, and for example, it is also possible to list: global System for mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), and Long Term Evolution (LTE).

Accordingly, the network device may be a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved node B (eNB or e-NodeB) in LTE, a Micro cell Base Station (Micro), a Pico Base Station (Pico), a home Base Station (femtocell), or a femto Base Station (femto), which is not limited in the present invention. The Terminal device may be a Mobile Terminal (Mobile Terminal), a Mobile user equipment, etc., such as a Mobile telephone (or so-called "cellular" telephone).

The rules for resource block size partitioning in WLAN systems are: the smallest resource block comprises 26 sub-carriers. In addition, resource blocks of 52 subcarriers, 106 subcarriers, 242 subcarriers, 484 subcarriers, 996 subcarriers are included. Correspondingly, the larger resource block can be seen as 2 times, 4 times, 9 times, 19 times, 38 times the smallest resource block of 26 sub-carriers.

As shown in fig. 3, 802.11ax is a possible data structure, in which an AP divides the entire bandwidth into multiple resource units (sub-bands) and uses the multiple resource units to perform data transmission for multiple STAs. In order for the STA to know whether it is the destination STA and to know the location of the resource block where the data is located and the physical layer parameters of the received data, the AP needs to indicate the resource scheduling information before transmitting the data. In general, HE-SIG-B includes resource scheduling information of a multi-user STA and instructs the multiple STAs to receive data.

FIG. 4 is one possible structure of HE-SIG-B, which includes a common part and a truncated part. The common domain includes some common information that all destination STAs need to read, such as Guard Intervals (GIs) of a data portion, location information allocated to resource blocks or resource units, the number of OFDM symbols of an HE-LTF (High efficiency Long Training sequence) that needs to be sent, and the like; the station-by-station domain includes information that each STA or a group of STAs in the same resource block need to read, wherein the information includes a station Identifier (STA ID), a Modulation and Coding Strategy (MCS) for indicating the Modulation and Coding strategy, a Number of Space-Time streams (NSTS) for indicating the Number of Space-Time streams used, and a Low Density Parity Check code (LDPC) for indicating whether an LDPC Coding mode is used; space Time Block Coding (STBC) is used to indicate whether STBC is used; beamforming (BF) is used to indicate whether Beamforming techniques are employed. Besides, it can also include Cyclic Redundancy Code (CRC) to store CRC check bit; the Tail bits (Tail) are used to store the 6-bit Tail of Binary Convolutional Code (BCC).

As shown in fig. 4, the resource block location information may be placed in a common domain, and may indicate the location of its resource block for each STA. That is, the resource block location information may be included only in the common domain, or the location of the resource block may be included only in the site domain section, or information about the location of the resource block may be included in both the common domain and the site domain. The specific manner of indicating it is not intended to be limiting herein.

Example one

At present, there are various indication modes of resource block positions, and a more efficient mode is to store all possible combinations in one table, and use indexes to indicate the allocation condition of each resource block. In 802.11ax, the sizes of various resource blocks are currently defined, and are divided into 26,52,106,242,484,996, and the like according to the number of subcarriers. Where 26 subcarriers correspond to approximately 2MHz, 52 subcarriers correspond to approximately 4MHz, 106 subcarriers correspond to approximately 10MHz, 242 subcarriers correspond to approximately 20MHz, 484 subcarriers correspond to approximately 40MHz, and 996 subcarriers correspond to approximately 80 MHz. But not exactly corresponding, for example, when the bandwidth is 80MHz, there are 4 large resource blocks of 242 sub-carriers, and besides there is a small resource block of 26 sub-carriers in the middle part.

Figure 5 is a possible combination of OFDMA resource blocks for a total bandwidth of 20MHz, for which the size of the resource blocks may be 26,52,106 (106 is represented by 102 in figure 3 since 102 was previously used), for a total of 25 cases, corresponding to 25 sequence indices, and then only ceil (log) need be carried in the common part₂25) All possible cases of 20MHz can be carried by 5 bits, where ceil denotes rounding up. For the case of total bandwidth of 40MHz, 80MHz, 160MHz, all possible cases can be enumerated as well, the list index is made, and finally all possible cases are indicated by several bits. Of course, for the case that the total bandwidth is 40MHz, 80MHz, and 160MHz, the list index may be performed for each 20MHz, and the indication is performed separately.

In addition, referring to fig. 6, in the OFDMA position allocation, it is also possible to consider multi-user MIMO (MU-MIMO) transmission at the same time, that is, perform multi-user allocation on spatial streams in a certain subband. For example, when the resource blocks are large enough, such as 106 or 242, this may allow further transmission using MU MIMO on that sub-band. In addition, all resource blocks are not occupied, that is, some resource blocks are empty and data transmission is not performed. Considering the above two cases, there is a table index including a more comprehensive allocation, and more bits are needed for indication compared to the former one. The resource blocks marked with 1-8 are respectively corresponding to an index for each case of 1 user to 8 users in order to satisfy the condition of transmitting MU-MIMO.

Of course, similar to the scheme mentioned in fig. 5, for the scheme shown in fig. 6, all possible cases can be enumerated to perform list indexing for the cases where the total bandwidths are 40MHz, 80MHz, and 160MHz, and the list indexing can also be performed separately for each 20MHz in the total bandwidth to perform indication separately.

In the embodiment provided by the invention, the indication of default resource allocation information is performed by means of list index. The resource allocation information may be indexed by reference to a table, such as those shown in fig. 5 and 6, which includes one or more indexes for indicating default resource allocation information.

The default resource allocation information includes:

1) and default resource block division. For example, the resource blocks agreed by the AP and the STA or specified by the protocol are divided such that, if the bandwidth is 40MHz, the entire bandwidth is divided into two resource blocks of 242 subcarriers; if the bandwidth is 80MHz, the whole bandwidth is divided into four resource blocks of 242 subcarriers and one resource block of 26 subcarriers. Or, according to the division of the resource block transmitted in the preamble, determining the division of the resource block currently transmitted, for example, when 20MHz is divided into 9 resource blocks of 26 subcarriers during uplink transmission in the preamble, the same resource block division manner as that during uplink transmission in the preamble is adopted during downlink transmission, and the resource blocks are likewise 9 resource blocks of 26 subcarriers. Alternatively, the first and second electrodes may be,

2) and destination STA of the default resource block (STA allocated on the resource block). That is, the STAs participating in preamble transmission receive/transmit data in the resource block according to a predetermined pattern. For example, for an STA participating in preamble transmission, data is received/transmitted in the same resource block as the preamble transmission or in a resource block of 242 subcarriers to which the resource block of the preamble transmission belongs in the current transmission. In addition to this, it is also possible to previously specify which STAs are to receive/transmit data in which resource blocks through a Beacon (Beacon) frame or some kind of management frame. Alternatively, the first and second electrodes may be,

3) as a special case, default acknowledgement frame reply mode. Including how resource blocks are allocated, on which resource blocks acknowledgement frames are sent, and by which STAs acknowledgement frames are sent. Wherein 3) includes the content of 1) and 2) that needs the default indication, and besides, 3) may further include the acknowledgement frame of what MAC frame type is replied by what manner, such as O-BA, M-BA, OFDMA M-BA and BA.

Specifically, the index in the first embodiment does not only indicate the division of the resource block, but includes the division of the resource block and the information of the destination STA of the resource block. Specifically, the method comprises two types, wherein the first type is as follows: for the total bandwidth to be allocated, the index is used for simultaneously indicating the division of the resource blocks and whether the target STA of each resource block is a default STA; the second method is as follows: the resource block division is indicated in some known or other manner, and the index is used to indicate whether the destination STA allocated in each resource block is a default STA.

A special case for the first is that the index is used to indicate a default acknowledgement mode, i.e. it defines that some MAC type of acknowledgement frame is carried in the resource block.

In addition, in addition to the instruction of transmitting the default resource allocation information, it is also possible to instruct the destination STA of the multicast frame after instructing the unicast frame or the multicast frame.

The default resource allocation information may be one of the above default allocation manners; the index may also be established separately for each separate indication. In the specific implementation process, each index and its corresponding resource allocation condition, and the condition of the target site and the like may be stored in the sending end or the receiving end respectively, or known to the sending end and the receiving end in other manners.

In one example, as shown in fig. 11a, a plurality of STAs perform uplink multi-user transmission frame transmission according to the scheduling of a trigger frame; when the AP replies to the downlink acknowledgment frame, the resource block allocation indication index is 26 (which may be another value for example only), and the resource block allocation is divided into two resource blocks of 242 subcarriers according to the allocation shown in fig. 7. And then, the resource block of 242 subcarriers is utilized to confirm the M-BA frame for the STA which transmits uplink data in the range of 242 subcarriers in the preamble.

As shown in fig. 11b, in another example, if the resource block allocation indication index is 27 (which may be another value for example only), the resource block allocation will be allocated according to the situation in (a) in fig. 8, the resource block allocation is the same as the resource block allocation of the preamble uplink data transmission, and if a certain sub-band of the preamble is data transmission of a single STA, an O-BA is replied; and if a certain sub-band of the preamble is the data transmission of the MU MIMO of a plurality of STAs, replying the M-BA.

In another example, the resource block allocation indication index is 28 (which may be another value for example only), and as shown in fig. 10a, the resource block ranked in the kth resource indication among the station-by-station indications is an M-BA frame by default. The resource block allocation indication index is 29 (for example only, it may be another value), as shown in fig. 9, the default replying manner is to perform an average allocation of resource blocks for the number of STAs that need to reply to the acknowledgement frame, and then reply to the O-BA in each resource block.

The method is also suitable for the indication of the uplink scheduling information resource block allocation in the trigger frame, and indicates the target STA which is required to acquire the immediate acknowledgement frame in the downlink frame to transmit the uplink acknowledgement frame on the corresponding resource block according to the default resource block allocation.

Fig. 11a and 11b show two cases of a method for indicating default resource allocation information for the entire bandwidth, that is, a value of an index is used to indicate that both the division of the resource block and the default resource allocation information of whether the destination STA is the default STA are included.

Further, as shown in fig. 11c, this may be indicated separately for each resource block. For example, the multicast data is transmitted only for the case where the resource block is large (a resource block larger than the

threshold

106 or 242 subcarriers), where one index value is assigned for each case of the number of MU MIMO users that are propagated by the resource block. Wherein fig. 11c is a simplified representation, the 1 st row actually corresponds to the centralized representation of 81 rows, corresponding to 81 index values, N1-N81, wherein the left and right 106 (1-9) respectively represent that the resource block with the size of 106 at the position is allocated to any one number of users from 1 to 8, and the 9 th case is used for indicating that the destination STA of the resource block is the default STA or for indicating that the resource block transmits the multicast frame. As can be seen from fig. 11c, the index value indicates the allocation of resource blocks on one hand: 106,26, 106, and on the other hand indicates whether the destination STA of a particular resource block is the default STA.

Fig. 11d shows an expanded identification method of fig. 11c, wherein an index N90 indicates that 20MHz is sequentially divided into 106,26,52,52 resource blocks, a destination STA of the first resource block with a size of 106 is a default STA, an index N99 indicates that 20MHz is taken as 1 complete resource block of 242 subcarriers, and the destination STA is the default STA.

The number of MU MIMO users is any one of 1 to 8, and in this embodiment, another index value may be further included, which corresponds to, for example, in case 9 of a larger resource block, an STA for indicating the purpose of the resource block as a default STA, for example, a station for preamble transmission of uplink information.

Furthermore, as shown in fig. 11c, for each resource block, it may also be indicated that the resource block is propagated by a multicast frame. Regarding the destination STA of the multicast frame, it is possible to limit the transmission of only one multicast MAC frame, and the STA participating in unicast reception does not need to receive the multicast frame. Therefore, when the STA knows that the STA does not participate in unicast transmission, the STA can read the multicast frame and identify whether the STA is the target STA of the multicast or not by reading the MAC address or the STA ID of the MAC frame body. It is also possible to indicate whether it is a multicast frame with fixed packets or a multicast frame with temporary packets by carrying a special multicast ID. Or, for a larger resource block, in case 10, the corresponding index value is used to indicate that the MAC frame transmitted by the resource block is a MAC frame (of a temporary packet) that needs to be read only by STAs participating in preamble uplink transmission, and correspondingly, the corresponding index value for case 9 is used to indicate multicast transmission of a fixed packet.

In the aforementioned multicast transmission of the temporary packet, a plurality of destination STAs (not necessarily all STAs in the cell) do not have a common multicast MAC address (non-broadcast MAC address) to identify the group of STAs. For example, for a plurality of STAs participating in uplink multi-user transmission scheduled arbitrarily, if the STAs reply in an M-BA manner, a plurality of destination STAs of the M-BA often do not have a common multicast MAC address. In the multicast transmission of the fixed packet, there is a common multicast MAC address allocated above the MAC layer, and it can be used to identify the destination STA of the multicast transmission of the fixed packet.

In the first embodiment, the indication of the unicast/multicast data and the indication of the default acknowledgement mode are performed by using more index values of the default resource allocation information. After the indication of the common part is performed, the resource scheduling parameter of the physical layer may be indicated for each STA or for an STA group (MU MIMO user group or multicast transmission user group) within each resource block. Since it is known in the common part that the MAC frame transmitted in each resource block is unicast/multicast, and if the MAC frame is unicast data, it is a single STA or a MU MIMO user group, a resource indication manner can be specifically designed for different transmission manners in each resource block from one station domain to another. For example, for the resource block indicated by the default resource allocation information, the STA ID of the station allocated on the resource block may not be indicated. For multicast transmission, because robustness of edge user reception is ensured, a lower MCS and a single data stream are often adopted, and thus default resource allocation information can be adopted for multicast data transmission without indicating related physical layer parameters, such as MCS, NSTS, LDPC, STBC, BF, and the like. One possible way is therefore to fully exploit the default resource allocation information for the default transmitted multicast data without indication from site-to-site domain. If the indicated default resource allocation information is that all the subsequent resource blocks adopt the default resource allocation information, the indication of the station domain by the station domain is not performed, and only the indication of the public domain is performed.

For the STA side, when the STA reads the resource allocation indication, the index of the read resource allocation indication is default resource allocation information, and the STA participates in the transmission of the preamble, and reads/sends the resource block according to the default resource allocation information; if the transmission of the preamble is not participated, the reading/sending is not continued.

Confirmation mode regarding default

A specific example of the default resource allocation information mentioned in the foregoing embodiment is a default confirmation manner. There are various default confirmation methods, and the embodiments do not limit this.

For example, a default acknowledgement frame reply mode 1, such as the default reply mode shown in fig. 7 below. That is, for an STA transmitting uplink within 20MHz (242 sub-carrier resource band), the AP aligns replies in the corresponding sub-band by means of M-BA. And transmitting the M-BA by an OFDMA mode aiming at the M-BA at different 20 MHz.

Also for example, a default acknowledgement frame reply mode 2 allocates the same OFDMA BA (O-BA) transmission as the preamble resource block for the resource. In addition, if a certain resource block is for MU-MIMO transmission, M-BA may be replied to the corresponding resource block or the resource block may continue to be evenly allocated for O-BA transmission, as shown in fig. 9.

As another example, a default ack frame reply mode 3 is an O-BA reply mode that evenly allocates the entire bandwidth. In order to balance the overhead of replying acknowledgement frames for each sub-band, the entire bandwidth is divided equally by the number of STAs, and O-BA replying is performed, as shown in FIG. 9.

For another example, a default acknowledgement frame reply method 4 is a multicast frame that is indicated to be transmitted by the kth of a per-site field (Dedicated part), and the destination STA is an STA that has participated in UL MU transmission in the preamble, and other resource blocks are continuously specified by the subsequent part, and a unicast frame or a multicast frame with fixed packets may be transmitted. Preferably, this case applies to the case of common part and site-by-site part joint coding. As shown in fig. 10a, the default first indication is a default multicast frame M-BA, and the location of the resource block may be indicated or may be default.

The above several default acknowledgement frame replying manners include default resource allocation information for resource block division, and include the destination STA in each resource block as a default STA. Of course, in other embodiments, only the division of the resource block may be included, for example, the division of the resource block is indicated according to the above 4 division methods, but the destination STA of each resource block is separately indicated; or the resource blocks may be divided first, and then the destination STA is indicated in each resource block as being not the default STA.

Destination STA (STA participating in preamble transmission) on default resource block

The destination STA of the aforementioned default (default) resource block may be an STA participating in preamble transmission, or an STA promised in advance based on a beacon frame and a management frame.

In addition to downlink multi-user transmission, multi-user uplink transmission is also introduced in 802.11ax, as shown in fig. 12. And the AP sends a trigger frame, wherein the trigger frame is used for triggering multi-user transmission and comprises resource scheduling information of multi-user uplink transmission. After receiving the trigger frame, the plurality of STAs transmit the uplink frame at almost the same time according to the resource scheduling information in the trigger frame. After receiving the uplink frame of multiple users, the AP sends a multi-user acknowledgement frame to multiple STAs simultaneously.

Specifically, the AP sends a trigger frame, the STA needs to transmit an uplink frame immediately after an X frame interval (X Inter-frame Space), and sets an acknowledgement rule (acknowledgement Policy), and if the acknowledgement rule is immediate feedback, the AP is required to reply an acknowledgement frame immediately after correctly receiving the data XIFS. For the acknowledgement frame, the "STA participating in preamble transmission" is the STA participating in uplink frame transmission. In addition, for the case where the STA participating in preamble transmission needs to receive data on which sub-channel depends on the default resource allocation.

If the AP sends downlink multiuser frames to multiple STAs and sets the acknowledgement rule as immediate feedback, the STAs need to reply with an acknowledgement frame immediately after correctly receiving data XIFS. The AP sends a trigger frame while sending downlink data, transfers scheduling information for triggering an acknowledgment frame, and instructs the STA how to reply the acknowledgment frame. Then the "STA participating in preamble transmission" indicated in the scheduling information in the trigger frame is the destination STA that retrieves the immediately replied downlink frame in the current downlink transmission, as shown in fig. 10 b.

If the AP/STA requesting the ack frame does not receive/correctly receive the corresponding ack frame within a fixed time period, it considers that the data is not correctly received or does not decode the ack frame, and then it no longer considers itself as the STA participating in preamble transmission.

Example two

Default resource indication with special STA ID

Referring to fig. 13, on the basis of the resource allocation information shown in fig. 4 as an example, except for the indication of the resource block location information (the specific manner is not limited), a special STA ID is used to indicate one or more destination STAs of the MAC frame in a certain resource block as STAs participating in uplink transmission in the preamble. And STAs not participating in preamble uplink transmission do not need to read the resource block. The special STA ID may be an all-0 or all-1 STA ID, or an STA ID agreed in advance by the AP and the STA participating in the preamble transmission.

The STA reads the STA ID, and if the STA ID is a special STA ID and the STA participates in uplink transmission on a corresponding resource block of the preamble, the MAC frame in the resource block is read; if the STA does not participate in the uplink transmission on the resource block corresponding to the preamble, the resource block does not need to be read. Wherein the corresponding resource block may be the same resource block as the resource block or a resource block belonging to the same 20MHz (242 subcarriers) in uplink transmission.

In addition, a special STA ID may be used to indicate whether the MAC frame in the resource block is a multicast MAC frame or a unicast MAC frame.

Of course, further referring to fig. 14, two special STA IDs may be reserved, and when the STA reads the special STA ID1, it is considered that the STA participating in the uplink transmission of the resource block corresponding to the preamble needs to read the special STA ID; and if the special STAID 2 is read, the frame is considered to be a multicast frame of a fixed packet, and selective reading is carried out according to certain rules. If the two special STA IDs are not available, if the STA participating in the unicast frame is specified not to read the multicast frame, whether to read is determined according to whether the unicast frame is sent to the STA. If the STA supports simultaneous reception of unicast data and multicast data, the STA can collectively perform reading.

It should be added that, for the MAC (Media Access Control) frame transmission method, there are unicast transmission (unicast), multicast transmission (multicast) and broadcast transmission (broadcast), wherein multicast transmission and broadcast transmission are also collectively referred to as multicast transmission (Groupcast). Unicast refers to a transmission mode in which a destination address is a single destination in the transmission of a packet in a computer network. It is the most widely used network nowadays, and the commonly used network protocols or services mostly use unicast transmission, such as all TCP based protocols. In addition to unicast transmission, there are broadcast and multicast. They differ from unicast in that the destination address of a broadcast is the global destination in the network, whereas the destination address of a multicast is a group of destinations, and the members joining the group are all the destinations of the packet. Here, the data transmitted by a single user is different from the data transmitted by multiple users. Video transmission/teaching content transmission by multicast is an important application scene in 802.11ax, and is widely applied in sports stadiums and stairclassrooms.

EXAMPLE III

Indication of default resource allocation information using special multicast ID

Referring to fig. 15, in addition to the resource allocation information shown in fig. 4 as an example, in addition to the indication of the resource block location information (the specific manner is not limited), the resource allocation information further includes an indication of unicast or multicast, and for multicast, a special multicast ID is used to indicate that the multicast is not a normal multicast frame sharing a common multicast MAC address, but a multicast frame that needs to be read by a default STA.

The indication of the unicast and multicast data may be indicated by using the index of the resource block location information mentioned in the first embodiment, or may be indicated by using other schemes, which is not limited in the present invention. Other schemes for indicating unicast and multicast include, for example, explicit indication by 1 bit or special STA ID, which indicates whether a MAC frame on a certain resource block is a multicast/broadcast MAC frame (multicast) or a unicast MAC frame. If the MAC frame of a certain resource block is indicated as a multicast/broadcast MAC frame by 1 bit, which multicast group is may be further indicated by a multicast ID.

Wherein the multicast ID may correspond to the multicast MAC address by the STA and the AP through handshake negotiation.

Accordingly, on the receiving side, the STA may confirm whether the MAC frame transmitted by some resource blocks is a multicast MAC frame or a unicast MAC frame by reading the received information. After distinguishing that the MAC frame in a certain resource block is a multicast frame, the STA reads the multicast ID, finds that the multicast ID is a special multicast ID, and receives multicast data according to default resource allocation information or reads the MAC frame in the resource block if the STA participates in uplink transmission on a resource block corresponding to the preamble; if the STA does not participate in the uplink transmission on the resource block corresponding to the preamble, the resource block does not need to be read.

For the second and third embodiments, it is to be noted that the STA ID or the multicast ID may also be implicitly carried by scrambling or xor, and the receiving end performs descrambling or xor by using the special ID to identify whether the AP implicitly carries the special ID, which is still within the considered scope of the present invention.

Example four

Indication of default resource allocation information using single user packet structure

802.11ax has three different packet structures, and for a single-user packet structure, only resource indication of a single STA needs to be performed, so that transmission of HE-SIG-B is not needed, and overhead of HE-SIG-B is saved. Therefore, in the fourth embodiment, the packet structure is first indicated to be a single-user packet structure, where the indication mode may be indicated by displaying in HE-SIG-a or may be implicitly carried by L-SIG + RL-SIG, and the scheme of the present invention is not limited. Then, the special STA ID or the special multicast ID indicates that the bandwidth of the packet structure is resource block allocation according to default resource allocation information, and the destination STA of the MAC frame in all resource blocks is a default STA, that is, an STA participating in preamble uplink transmission. The special multicast ID is a special ID, for example, all 0 s or all 1 s, or an ID predetermined by the AP and the STA when the address is confirmed as the multicast ID.

For this way, the MAC frames in multiple resource blocks can be uniformly indicated by using the physical layer parameters of a single station, where the physical layer parameters, as shown in fig. 16, may include MCS, NSTS, LDPC, STBC, or the like; default physical layer parameters may also be directly used without indication, for example, MCS is fixed to MCS0, NSTS is fixed to 1 spatial stream, LDPC is fixed to 0, i.e., BCC is used, STBC is fixed to 0, i.e., STBC is not used.

The STA reads the frame of which the frame is SU, and the STA ID/multicast ID is special STA ID/multicast ID, and the STA participates in the uplink transmission of the preorder, and reads the MAC frame in the resource block according to default resource allocation information; if the STA does not participate in the uplink transmission of the preamble, it is not necessary to read the resource block. And reading physical layer parameters of SU in the HE-SIG-A or reading the MAC frame according to default physical layer parameters.

EXAMPLE five

Explicit indication of default resource allocation information using information bits

And indicating default resource allocation information by carrying out implicitly carried bits in L-SIG and RL-SIG or directly using information bits in HE-SIG-A or HE-SIG-B. The 1-bit indication can be directly carried out for the whole bandwidth, and some default resource allocation information is adopted; or may indicate separately for a plurality of default resource allocation information. In addition to the resource allocation information illustrated in fig. 4, the resource allocation information may be indicated by 1 bit for each resource block in addition to the indication of the resource block position information (the specific embodiment is not limited). For example, the acknowledgement mode is indicated by 1 bit as some default resource allocation information, that is, a resource block is allocated according to some default resource allocation information, and the destination STA is an STA participating in preamble uplink transmission.

For an STA side, the STA reads the default resource allocation information bit indication in L-SIG and RL-SIG or HE-SIG-A or HE-SIG-B, if the indication bit default resource allocation information is read and the STA participates in the uplink transmission of a preamble, the MAC frame in the resource block is read according to the default resource allocation information; if the STA is not involved in the corresponding uplink transmission, it is not necessary to read the resource block.

EXAMPLE six

Indication of default resource allocation information by not transmitting STA ID

The AP instructs default resource allocation information by not transmitting a station-by-station field or not carrying an STA ID in the station-by-station field. On the other hand, the STA side can know whether the STA ID is included in the station-by-station domain or carried in the station-by-station domain part by comparing the symbol number of the HE-SIG-B, and whether the resource indication of the default resource allocation information is performed.

And carrying the symbol number indication of the HE-SIG-B in the HE-SIG-A. While the number of OFDM symbols occupied by the common part in HE-SIG-B is generally fixed. The HE-SIG-B part only contains the public part and does not contain the site-by-site part through sign number indication, namely the sign number of the HE-SIG-B indicated in the HE-SIG-A is equal to the sign number of the public part; furthermore, it is also possible to indicate that no sta id is contained in the site-by-site field by performing calculation of the number of HE-SIG-B symbols by information of the common part.

For example, if:

，

it means that the station-by-station domain does not contain the STA ID, and the destination STA of the MAC frame for subsequent transmission is implicitly indicated as the default STA by not containing the STA ID, i.e. the STA participating in preamble uplink transmission.

Other inventive embodiments

Furthermore, for the case that the HE-SIG-B common part is jointly encoded with an indication of one STA/MU MIMO user group/multicast user group of the STA-by-STA indication part and scrambled with identification information, it may be indicated that there is multicast transmission of the data part by carrying bits in the L-SIG and RL-SIG or HE-SIGA, and the order of resource indication for multicast transmission may be a default position (for example, it is assumed that the first indicated by the STA-by-STA field is always) or the order of multicast transmission indication (indicated as the K-th) is further indicated by information bits. When the STA knows that the second indicated in all the station-by-station domains is multicast transmission, the STA can descramble by using the multicast ID or the special multicast ID, thereby simplifying the receiving process of the STA. When the STA knows that the MAC frame transmitted at a certain position is a multicast frame, the STA can further distinguish the destination STA of the multicast frame by using the method described in the first embodiment.

For this case, the STA reads the multicast information bit indication in the L-SIG, RL-SIG, or HE-SIG-a, and if it indicates that there is multicast data transmission in the data portion, descrambles it with a special ID at the default position or the indicated position.

The method for scheduling resources according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 16, and the apparatus for scheduling resources according to the embodiment of the present invention is described in detail below with reference to fig. 17 to 18.

Fig. 17 shows a schematic block diagram of an apparatus 300 for resource scheduling according to an embodiment of the present invention, where the apparatus 300 is applied to a wireless local area network, and as shown in fig. 17, the apparatus 300 includes:

a generating unit 310 is configured to generate resource scheduling information, which includes an indication of default resource block allocation information. For example, the index is used for indicating the division condition of the resource block and the information of the default destination station at the same time; alternatively, in addition to the indication of resource block allocation, multicast is indicated by using the identifier of a specific station or station group, or a default destination station is indicated by using the identifier of a specific station or station group.

A sending unit 320, configured to send the resource scheduling information to a receiving end.

Optionally, the apparatus 300 is a network device, and the receiving end is a terminal device.

The apparatus 300 for resource scheduling according to the embodiment of the present invention may correspond to a sending end (e.g., a network device) in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the apparatus 300 for resource scheduling are respectively for implementing the corresponding flow of the method 100 in fig. 1, and are not described herein again for brevity.

Fig. 18 shows a schematic block diagram of an apparatus 400 for resource scheduling according to an embodiment of the present invention, the apparatus 400 is applied to a wireless local area network, the wireless local area network follows a next generation protocol in which resource block positions that may be divided for frequency domain resources to be allocated are agreed, and as shown in fig. 18, the apparatus 400 includes:

a receiving unit 410, the resource scheduling information comprising an indication for the one or more default resource block allocation information. For example, the index is used for indicating the division condition of the resource block and the information of the default destination station at the same time; or, in addition to the indication of resource block division, multicast is indicated by using an identifier of a specific station or station group, or a default destination station is indicated.

A processing unit 420, configured to transmit, according to the resource scheduling information, if the indication that there is default resource block allocation information is included and the receiving end needs to transmit according to the default resource block allocation information, according to a protocol convention or a manner agreed by both parties.

The apparatus 400 for resource scheduling according to the embodiment of the present invention may correspond to a sending end (e.g., a network device) in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the apparatus 400 for resource scheduling are respectively for implementing the corresponding flow of the method 100 in fig. 1, and are not described herein again for brevity.

The method for scheduling resources according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 16, and the apparatus for scheduling resources according to the embodiment of the present invention is described in detail below with reference to fig. 19 to 20.

Fig. 19 is a schematic block diagram of a resource scheduling apparatus 500 according to an embodiment of the present invention, where the apparatus 500 is applied to a wireless local area network, and default resource allocation information is agreed in a next generation protocol followed by the wireless local area network, or default resource allocation information is agreed between a transmitting end and a receiving end. As shown in fig. 19, the apparatus 500 includes:

a bus 510;

a processor 520 coupled to the bus;

a memory 530 connected to the bus;

a transmitter 540 connected to the bus;

wherein the processor invokes, via the bus, a program stored in the memory for generating resource scheduling information including an indication of default resource block allocation information. For example, the index is used for indicating the division condition of the resource block and the information of the default destination station at the same time; alternatively, in addition to the indication of resource block allocation, multicast is indicated by using the identifier of a specific station or station group, or a default destination station is indicated by using the identifier of a specific station or station group.

For controlling the transmitter to transmit the resource scheduling information to the receiving end.

Optionally, the frequency domain resource to be allocated includes a center of symmetry.

Optionally, the device 500 is a network device, and the receiving end is a terminal device.

The embodiment of the invention can be applied to various communication devices.

The transmitter of the device 500 may include transmit circuitry, a power controller, an encoder, and an antenna, and the device 500 may further include a receiver, which may include receive circuitry, a power controller, a decoder, and an antenna.

The processor may also be referred to as a CPU. The memory may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile row random access memory (NVRAM). In particular implementations, device 500 may be embedded in or may itself be a wireless communication device, such as a network device, and may further include a carrier that houses transmit and receive circuitry to allow data to be transmitted and received between device 500 and a remote location. The transmit circuitry and receive circuitry may be coupled to an antenna. The various components of device 500 are coupled together by a bus, which includes a power bus, a control bus, and a status signal bus, in addition to a data bus. But for the sake of clarity the various buses are labeled as buses in the figures. The decoder may be integrated with the processing unit in different products.

The processor may implement or perform the various steps and logic blocks disclosed in the method embodiments of the present invention. A general purpose processor may be a microprocessor or the processor may be any conventional processor, decoder, etc. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art.

It should be understood that, in the embodiments of the present invention, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory. For example, the memory may also store device type information.

The bus system may include a power bus, a control bus, a status signal bus, and the like, in addition to the data bus. For clarity of illustration, however, the various buses are labeled as a bus system in the figures.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.

The device 500 for resource scheduling according to the embodiment of the present invention may correspond to a sending end (e.g., a network device) in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the device 500 for resource scheduling are respectively for implementing the corresponding flow of the method 100 in fig. 1, and are not described herein again for brevity.

According to the resource scheduling device provided by the embodiment of the invention, at least part of bits in the bit sequence are used for indicating whether one or more resource block positions in the resource block positions into which the frequency domain resources to be allocated are possibly divided are the resource blocks to be allocated into which the frequency domain resources to be allocated are actually divided, so that the bit sequences with different lengths can be flexibly generated according to the distribution condition of the resource blocks to be allocated into which the frequency domain resources to be allocated are actually divided, and the reduction of the overhead of resource scheduling on transmission resources can be supported.

Fig. 20 shows a schematic block diagram of an apparatus 600 for resource scheduling according to an embodiment of the present invention, the apparatus 600 is applied to a wireless local area network, and as shown in fig. 20, the apparatus 600 includes:

a bus 610;

a processor 620 connected to the bus;

a memory 630 connected to the bus;

a receiver 640 connected to the bus;

the processor calls a program stored in the memory through the bus to control the receiver to receive resource scheduling information sent by the sending end, wherein the resource scheduling information includes an indication for default resource block allocation information. For example, the index is used for indicating the division condition of the resource block and the information of the default destination station at the same time; alternatively, in addition to the indication of resource block allocation, multicast is indicated by using the identifier of a specific station or station group, or a default destination station is indicated by using the identifier of a specific station or station group.

Optionally, the sending end is a network device, and the device 600 is a terminal device.

A receiver of the device 600 may include receive circuitry, a power controller, a decoder, and an antenna, and the device 600 may further include a transmitter, which may include transmit circuitry, a power controller, an encoder, and an antenna.

The processor may also be referred to as a CPU. The memory may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile row random access memory (NVRAM). In particular applications, device 600 may be embedded in or may itself be a wireless communication device, such as a terminal device, and may include a carrier that houses transmit and receive circuitry to allow data to be transmitted and received between device 600 and a remote location. The transmit circuitry and receive circuitry may be coupled to an antenna. The various components of device 600 are coupled together by a bus, which includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for the sake of clarity the various buses are labeled as buses in the figures. The decoder may be integrated with the processing unit in different products.

The device 600 for resource scheduling according to the embodiment of the present invention may correspond to a receiving end (e.g., a terminal device) in the method according to the embodiment of the present invention, and each unit, i.e., module, and the other operations and/or functions in the device 600 for resource scheduling are respectively for implementing the corresponding flow of the method 100 in fig. 1, and are not described herein again for brevity.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

This functionality, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a transmitting end) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

To make embodiments of the invention clearer, the following provides embodiments expressed in simplified language:

example of the AP side:

1. one or more kinds of default resource allocation information are added to the resource allocation indication in an existing manner. The allocation of resource blocks uses default resource allocation information.

2. Based on example 1, the destination STA or scheduled STA of the resource allocation is the default STA.

3. In the resource allocation indication table, for an existing resource block, an index case is added to indicate that a destination STA/scheduled STA in the resource block is a default STA or indicate that a transmitted MAC frame contains a multicast MAC frame.

4. One or more destination STAs of the MAC frame within the resource block are indicated as default STAs by a special STA ID. If the resource block is the default downlink STA, the downlink data of the resource block needs to be read; and the default STA does not need to read the downlink data of the resource block. If the uplink STA is the default uplink STA, the uplink data needs to be sent in the resource block; and the non-default STA may not transmit uplink data in the resource block.

5. One or more scheduled STAs within the resource block are indicated as default STAs by a special STA ID. If the STA is the default STA, the uplink data needs to be sent in the resource block; while non-default STAs may not transmit uplink data within the resource block.

6. Based on any one of example 2 to example 5, the default STA is an STA participating in preamble transmission on a corresponding resource block or an STA agreed in advance based on a beacon frame and a management frame.

7. Based on example 4 or example 5, the special STA ID may be carried by a trigger frame or a Beacon (Beacon) frame in which multiple users are scheduled to perform uplink transmission through the preamble.

8. After the indication of the multicast frame by using the display or implicit information bit, introducing a special multicast ID into a multicast address, and indicating that the STA which is the default needs to read the resource block; if not, the resource block does not need to be read.

9. Firstly indicating an SU frame, then indicating the frame as a multicast frame indicated by default resources by using a special STA ID/multicast ID, and adopting uniform physical layer parameters or default physical layer parameters for all multicast frames.

10. The L-SIG, RL-SIG, HE-SIG-A, and HE-SIG-B are explicitly indicated by default resource allocation information using information bits.

11. And indicating the existence of the multicast MAC frame in the current packet by using the information bits in the L-SIG and the RL-SIG or the HE-SIG-A. And the sequence of the multicast MAC frames in each station is a default sequence or the sequence of the multicast MAC frames is indicated at the same time.

12. An indication of default resource allocation information is implicitly indicated by not carrying the STA ID in a site-by-site domain.

Example on the STA side:

and 1, the STA reads the resource allocation indication, the index of the read resource indication is default resource allocation information, and the division of the resource blocks is divided according to the default resource allocation information.

2. Based on example 1, if the STA is the default STA, downlink data is read in a default resource block according to default resource block allocation; if the STA is not the default STA, the data does not need to be read.

3. Based on example 1, if the STA is the default STA, uplink data is transmitted in the default resource block according to the default resource block allocation; if the transmission of the preamble is not participated, the data can not be sent.

And 4, the STA reads the resource allocation indication table, and knows that the MAC frame of a certain resource block is a multicast MAC frame or the target STA/scheduled STA is a default STA by reading the index of the resource indication.

5. Based on example 4, if the STA is the default STA, reading downlink data in the resource block; if the data does not participate in the transmission of the preamble, the data does not need to be read.

6. Based on example 4, if the STA is the default STA, sending uplink data in the resource block; if the transmission of the preamble is not participated, the data can not be sent.

Reading the STA ID by the STA, and if the STA ID is a special STA ID and the STA is a default STA, reading downlink data in a corresponding resource block; if the STA is not the default STA, the downlink data in the corresponding resource block does not need to be read.

Reading the STA ID by the STA, and if the STA ID is a special STA ID and the STA is a default STA, sending uplink data in the resource block; if the STA is not the default STA, data may not be transmitted in the resource block.

9. Based on example 7 or example 8, the special STA ID may be carried by a trigger frame or a Beacon frame.

10, after the STA distinguishes the multicast frame, reading the multicast ID, finding that the multicast ID is a special multicast ID, and if the STA is a default STA, reading the data in the resource block; if the STA is not the default STA, the data in the resource block does not need to be read.

Reading a frame of which the frame is SU by the STA, wherein the STA ID is a special STA ID, and the STA is a default STA, and reading data in a corresponding resource block according to default resource block allocation; if the STA is not the default STA, the data in the resource block does not need to be read. Furthermore, all multicast frames adopt uniform physical layer parameters or default physical layer parameters.

Reading bit indications in L-SIG and RL-SIG or HE-SIG-A or HE-SIG-B by the STA, and reading data in a corresponding resource block according to default resource block allocation or explicitly specified resource block allocation if the indication is that default resource allocation information is read and the STA is a default STA; if the STA is a non-default STA, the data in the resource block does not need to be read.

The STA reads the bit indication in the L-SIG and the RL-SIG or the HE-SIG-A to know that the multicast MAC frame exists in the current packet, and the sequence of the multicast MAC frame in the station-by-station is a default sequence or the sequence of the multicast MAC frame is known by reading the sequence indication of the multicast MAC frame.

An STA reads the symbol number and MCS of the HE-SIG-B in the HE-SIG-A, and learns that the HE-SIG-B only contains a public part or further reads the public part through calculation, learns that the resource indication of the HE-SIG-B from station to station does not contain STA ID, and the STA is a default STA, and reads data in a resource block according to default resource block allocation or explicitly indicated resource block allocation in the corresponding resource block; if the STA is not the default STA, the data in the resource block does not need to be read.

15. Based on examples 1-14, the default STA is an STA participating in preamble transmission on a corresponding resource block or an STA agreed in advance based on a beacon frame and a management frame.

Claims

1. A method for scheduling resources is applied to a wireless local area network, and comprises the following steps:

generating resource allocation information, the resource allocation information comprising: aiming at the total bandwidth to be allocated, the method is used for simultaneously indicating the division condition of the default resource block and whether the target STA of each resource block is the index of the default STA; the default STA is an STA participating in preamble transmission on a corresponding resource block, or an STA agreed in advance based on a beacon frame and a management frame;

and sending the resource allocation information.

2. A method for scheduling resources is applied to a wireless local area network, and comprises the following steps:

sending the resource allocation information;

the default STA is an STA participating in preamble transmission on a corresponding resource block, or an STA agreed in advance based on a beacon frame and a management frame.

3. A method for scheduling resources is applied to a wireless local area network, and comprises the following steps:

and sending the resource allocation information.

4. A method for receiving resource scheduling, applied to a wireless local area network, includes:

receiving resource allocation information, the resource allocation information comprising: aiming at the total bandwidth to be allocated, the method is used for simultaneously indicating the division condition of the default resource block and whether a target station STA of each resource block is an index of the default station STA; the default STA is an STA participating in preamble transmission on a corresponding resource block, or an STA agreed in advance based on a beacon frame and a management frame;

5. A method for receiving resource scheduling, applied to a wireless local area network, includes:

and transmitting data on a default resource block if the STA is a default STA according to the information in the resource allocation information.

6. The method of claim 5, wherein the default STA is an STA participating in preamble transmission on a corresponding resource block, or an STA promised in advance based on a beacon frame and a management frame.

7. A method for scheduling resources is applied to a wireless local area network, and comprises the following steps:

and according to the information in the resource allocation information, if the STA is a default STA, receiving the multicast data on a default resource block.

8. An apparatus for resource scheduling, applied to a wireless local area network, comprising:

a generating unit configured to generate resource allocation information, the resource allocation information including: aiming at the total bandwidth to be allocated, the method is used for simultaneously indicating the division condition of the default resource block and whether the target STA of each resource block is the index of the default STA; the default STA is an STA participating in preamble transmission on a corresponding resource block, or an STA agreed in advance based on a beacon frame and a management frame;

a sending unit, configured to send the resource allocation information.

9. An apparatus for resource scheduling, applied to a wireless local area network, includes:

a generating unit configured to generate resource allocation information, the resource allocation information including: the indication of the resource block division condition, and for one or more divided resource blocks, information used for indicating whether a destination STA allocated within each resource block is a default STA, where the information includes an index, or a special station or station group identifier;

a transmitting unit, configured to transmit the resource allocation information;

10. An apparatus for resource scheduling, applied to a wireless local area network, includes:

a generating unit configured to generate resource allocation information, the resource allocation information including: an indication of the condition of resource block partitioning, and, for one or more partitioned resource blocks, an index indicating that the MAC frame transmitted within each resource block contains a multicast MAC frame;

a sending unit, configured to send the resource allocation information.

11. An apparatus for receiving resource scheduling, applied to a wireless local area network, comprising:

a receiving unit, configured to receive resource allocation information, where the resource allocation information includes: aiming at the total bandwidth to be allocated, the method is used for simultaneously indicating the division condition of the default resource block and whether a target station STA of each resource block is an index of the default station STA; the default STA is an STA participating in preamble transmission on a corresponding resource block, or an STA agreed in advance based on a beacon frame and a management frame;

and the processing unit is used for transmitting data on the default resource block if the index in the resource allocation information is the default STA.

12. An apparatus for receiving resource scheduling, applied to a wireless local area network, comprising:

a receiving unit, configured to receive resource allocation information, where the resource allocation information includes: the indication of the resource block division condition, and for one or more divided resource blocks, information used for indicating whether a destination STA allocated within each resource block is a default STA, where the information includes an index, or a special station or station group identifier;

and the processing unit is used for transmitting data on a default resource block if the STA is a default STA according to the information in the resource allocation information.

13. The apparatus of claim 12, wherein the default STA is a STA participating in preamble transmission on a corresponding resource block, or a STA promised in advance based on a beacon frame and a management frame.

14. An apparatus for resource scheduling, applied to a wireless local area network, includes:

a receiving unit, configured to receive resource allocation information, where the resource allocation information includes: an indication of the condition of resource block partitioning, and, for one or more partitioned resource blocks, an index indicating that the MAC frame transmitted within each resource block contains a multicast MAC frame;

and the processing unit is used for receiving the multicast data on a default resource block if the STA is a default STA according to the information in the resource allocation information.

15. A computer-readable storage medium, characterized in that it stores a computer program which, when executed by hardware, is capable of implementing the method of any one of claims 1 to 7.