CN106688261B

CN106688261B - Resource allocation method, sending end equipment and receiving end equipment

Info

Publication number: CN106688261B
Application number: CN201580047945.1A
Authority: CN
Inventors: 淦明; 林梅露; 刘乐
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-06-16
Filing date: 2015-06-16
Publication date: 2020-11-06
Anticipated expiration: 2035-06-16
Also published as: WO2016201627A1; CN106688261A

Abstract

The embodiment of the invention provides a resource allocation method, sending end equipment and receiving end equipment. The method comprises the following steps: the sending end equipment determines resource indication information for resource allocation in a time domain and a frequency domain, wherein the resource indication information comprises time indication information and indication information for resource allocation in the frequency domain, and the time indication information comprises the number of time periods or the number of the time periods and the length of the time periods; and sending the resource indication information to the receiving end equipment so that the receiving end equipment can determine the allocated time-frequency resources according to the resource indication information. In the embodiment of the present invention, a sending end device sends, to a receiving end device, indication information for resource allocation in a frequency domain and time indication information for resource allocation in a time domain. Therefore, resource allocation is indicated in two dimensions of frequency and time, and time-frequency resources are allocated in a time domain and a frequency domain, namely, the resource division is carried out by simultaneously adopting frequency division multiplexing and time division multiplexing.

Description

Resource allocation method, sending end equipment and receiving end equipment

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method for resource allocation, a sending end device, and a receiving end device.

Background

With the development of mobile internet and the popularization of intelligent terminals, data traffic is rapidly increasing. Wireless Local Area Network (WLAN) is one of the mainstream mobile broadband access technologies due to its advantages of high speed and low cost.

In the next generation WLAN system, the division of resource blocks in 802.11ax for the next generation standard may be: the division of the resource blocks may be 1 × 26, 2 × 26, 4 × 26 or 242, where 1 × 26 denotes that 26 subcarriers are one resource block, 2 × 26 denotes that 52 subcarriers are one resource block, 4 × 26 denotes that 106 subcarriers are one resource block, and 242 denotes that 242 subcarriers are one resource block. Taking 20MHz bandwidth as an example, a block diagram of 20MHz bandwidth may be formed by combining the above resource blocks.

In the existing resource allocation method, after receiving the resource indication information, the receiving end device can obtain the current transmission frequency domain resource allocation condition. Taking 20MHz bandwidth as an example, a station can obtain the current frequency domain resource allocation situation on 20 MHz. Then, the scheduled station is known from the resource indication information, and the scheduled station can receive or send data at the scheduled corresponding position. The corresponding location includes both frequency and time dimensions. In the existing resource allocation method, the resource blocks are subjected to frequency division multiplexing, only the frequency dimension is indicated, and the resource blocks are not divided by adopting time division multiplexing. Therefore, how to allocate resources when the resource blocks are divided by time division multiplexing is a problem to be solved at present.

Disclosure of Invention

Embodiments of the present invention provide a resource allocation method, a sending end device, and a receiving end device, which can perform resource allocation when resource blocks are divided by using time division multiplexing.

In a first aspect, a method for resource allocation is provided, including: the sending end equipment determines resource indication information used for resource allocation in a time domain and a frequency domain, wherein the resource indication information comprises time indication information and first indication information used for resource allocation in the frequency domain, and the time indication information comprises the number of time periods for resource allocation in the time domain or the number of time periods and the length of the time periods for resource allocation in the time domain; and sending the resource indication information to the receiving end equipment so that the receiving end equipment can determine the allocated time-frequency resource according to the resource indication information.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the first indication information includes station identification information, where the resource indication information further includes station identification repetition information, and the station identification repetition information is used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in an adjacent time period.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the station identification repetition information is specifically used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in the previous time period, and the station identification repetition information set does not include the station identification repetition information corresponding to the station identification information allocated to all frequency bands in the first time period.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the station identification repetition information is specifically used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in a later time period, and the station identification repetition information set does not include the station identification repetition information corresponding to the station identification information allocated to all frequency bands in the last time period.

With reference to the second or third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the site identity repetition information set does not include site identity repetition information corresponding to the site identity information allocated by the first time-frequency resource block, frequency divisions of a frequency band of the first time-frequency resource block in a time period in which the first time-frequency resource block is located and a previous time period are different and allocated different site identity information is different, or frequency divisions of a frequency band corresponding to the first time-frequency resource block in a time period in which the first time-frequency resource block is located and a subsequent time period are different and allocated different site identity information is included.

With reference to any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the station identification repetition information is first station identification repetition information corresponding to first station identification information, and the first station identification repetition information is 1-bit information and is appended after the first station identification information.

With reference to any one of the first to fourth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the station identification repetition information is second station identification repetition information corresponding to the station identification information allocated in the first time period, and the second station identification repetition information is at least one bit of information.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the first indication information includes frequency domain resource allocation indication information used for indicating frequency division, and the second station identification repetition information is appended to the frequency domain resource allocation indication information.

With reference to the first aspect or any one of the first to seventh possible implementation manners of the first aspect, in an eighth possible implementation manner of the first aspect, the first indication information, the station identification repetition information, and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a medium access control layer.

With reference to the first aspect, in a ninth possible implementation manner of the first aspect, the first indication information includes station parameter information, and the station parameter information includes a time period index, where the time period index is used to indicate a time period for allocating station identification information.

With reference to the first aspect or any one of the first to ninth possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect, a time period for performing resource allocation in a time domain is equal, and the time indication information only includes the number of time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of the time periods.

With reference to the first aspect or any one possible implementation manner of the first to tenth possible implementation manners of the first aspect, in an eleventh possible implementation manner of the first aspect, the time indication information further includes broadcast frame indication information, and the broadcast frame indication information is used to indicate a time period for transmitting a broadcast frame.

In a second aspect, a method for resource allocation is provided, including: receiving end equipment receives resource indication information used for resource allocation in a time domain and a frequency domain from sending end equipment, wherein the resource indication information comprises time indication information and first indication information used for resource allocation in the frequency domain, and the time indication information comprises the number of time periods for resource allocation in the time domain or the number of time periods and the length of the time periods for resource allocation in the time domain; and determining the allocated time-frequency resources according to the resource indication information.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the first indication information includes station identification information, where the resource indication information further includes station identification repetition information, and the station identification repetition information is used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in an adjacent time period.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the station identification repetition information is first station identification repetition information corresponding to first station identification information, and the first station identification repetition information is 1-bit information and is appended after the first station identification information.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the station identification repetition information is second station identification repetition information corresponding to the station identification information allocated in the first time period, and the second station identification repetition information is at least one bit of information.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the first indication information includes frequency domain resource allocation indication information used for indicating frequency division, and the second station identification repetition information is appended to the frequency domain resource allocation indication information.

With reference to the second aspect or any one of the first to the fourth possible implementation manners of the second aspect, in a fifth possible implementation manner of the second aspect, the first indication information, the station identification repetition information, and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a medium access control layer.

With reference to the second aspect, in a sixth possible implementation manner of the second aspect, the first indication information includes station parameter information, and the station parameter information includes a time period index, where the time period index is used to indicate a time period allocated by the station identification information.

With reference to the second aspect or any one of the first to sixth possible implementation manners of the second aspect, in a seventh possible implementation manner of the second aspect, a time period for performing resource allocation in a time domain is equal in length, and the time indication information only includes the number of time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of the time periods.

With reference to the second aspect or any one of the first to the seventh possible implementation manners of the second aspect, in an eighth possible implementation manner of the second aspect, the time indication information further includes broadcast frame indication information, and the broadcast frame indication information is used to indicate a time period for transmitting a broadcast frame.

In a third aspect, a sending end device is provided, which includes: a determining unit, configured to determine resource indication information for resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and first indication information for resource allocation in the frequency domain, and the time indication information includes the number of time segments for resource allocation in the time domain or the number of time segments and the length of time segments for resource allocation in the time domain; a sending unit, configured to send the resource indication information to a receiving end device, so that the receiving end device determines the allocated time-frequency resource according to the resource indication information.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the first indication information includes station identification information, where the resource indication information further includes station identification repetition information, and the station identification repetition information is used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in an adjacent time period.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the station identification repetition information is specifically used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in the previous time period, and the station identification repetition information set does not include the station identification repetition information corresponding to the station identification information allocated to all frequency bands in the first time period.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the station identification repetition information is specifically used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in a later time period, and the station identification repetition information set does not include the station identification repetition information corresponding to the station identification information allocated to all frequency bands in the last time period.

With reference to the second or third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the site identity repetition information set does not include site identity repetition information corresponding to the site identity information allocated to the first time-frequency resource block, frequency divisions of a frequency band of the first time-frequency resource block in a time period in which the first time-frequency resource block is located and a previous time period are different and allocated different site identity information is different, or frequency divisions of a frequency band corresponding to the first time-frequency resource block in a time period in which the first time-frequency resource block is located and a subsequent time period are different and allocated different site identity information is included.

With reference to any one of the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the station identification repetition information is first station identification repetition information corresponding to first station identification information, and the first station identification repetition information is 1-bit information and is appended after the first station identification information.

With reference to any one possible implementation manner of the first to fourth possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the station identification repetition information is second station identification repetition information corresponding to the station identification information allocated in the first time period, and the second station identification repetition information is at least one bit of information.

With reference to the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the first indication information includes frequency domain resource allocation indication information used for indicating frequency division, and the second station identification repetition information is appended to the frequency domain resource allocation indication information.

With reference to the third aspect or any one possible implementation manner of the first to seventh possible implementation manners of the third aspect, in an eighth possible implementation manner of the third aspect, the first indication information, the station identification repetition information, and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a medium access control layer.

With reference to the third aspect, in a ninth possible implementation manner of the third aspect, the first indication information includes station parameter information, and the station parameter information includes a time period index, where the time period index is used to indicate a time period for allocation of the station identification information.

With reference to the third aspect or any possible implementation manner of the first to ninth possible implementation manners of the third aspect, in a tenth possible implementation manner of the third aspect, a time period for performing resource allocation in a time domain is equal in length, and the time indication information only includes the number of time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of the time periods.

With reference to the third aspect or any possible implementation manner of the first to tenth possible implementation manners of the third aspect, in an eleventh possible implementation manner of the third aspect, the time indication information further includes broadcast frame indication information, and the broadcast frame indication information is used to indicate a time period for transmitting a broadcast frame.

In a fourth aspect, a receiving end device is provided, which includes: a receiving unit, configured to receive, from a sending end device, resource indication information for performing resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and first indication information for performing resource allocation in the frequency domain, and the time indication information includes the number of time periods for performing resource allocation in the time domain or the time indication information includes the number of time periods and the length of time periods for performing resource allocation in the time domain; and the determining unit is used for determining the allocated time-frequency resources according to the resource indication information.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the first indication information includes station identifier information, where the resource indication information further includes station identifier repetition information, and the station identifier repetition information is used to indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in an adjacent time period.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the station identification repetition information is first station identification repetition information corresponding to first station identification information, and the first station identification repetition information is 1-bit information and is appended after the first station identification information.

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the station identification repetition information is second station identification repetition information corresponding to the station identification information allocated in the first time period, and the second station identification repetition information is at least one bit of information.

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the first indication information includes frequency domain resource allocation indication information used for indicating frequency division, and the second station identification repetition information is appended to the frequency domain resource allocation indication information.

With reference to the fourth aspect or any one of the first to fourth possible implementation manners of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the first indication information, the station identification repetition information, and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a medium access control layer.

With reference to the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the first indication information includes station parameter information, and the station parameter information includes a time period index, where the time period index is used to indicate a time period for allocation of the station identification information.

With reference to the fourth aspect or any possible implementation manner of the first to sixth possible implementation manners of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, a time period for performing resource allocation in the time domain is equal in length, and the time indication information only includes the number of time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of the time periods.

With reference to the fourth aspect or any one of the first to the seventh possible implementation manners of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the time indication information further includes broadcast frame indication information, and the broadcast frame indication information is used to indicate a time period for transmitting a broadcast frame.

In the embodiment of the present invention, a sending end device sends, to a receiving end device, indication information for performing resource allocation in a frequency domain and time indication information for performing resource allocation in a time domain. Thus, the embodiment of the invention indicates resource allocation in two dimensions of frequency and time, and realizes the allocation of time-frequency resources in time domain and frequency domain, namely, the resource division is carried out by adopting frequency division multiplexing and time division multiplexing simultaneously.

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 diagram of a WLAN system.

Fig. 2 is a schematic block diagram of a non-time division multiplexed PPDU.

Fig. 3 is a schematic structural diagram of a time division multiplexing PPDU according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the location of a resource block with a bandwidth of 20 MHz.

Fig. 5 is a diagram of a 20MHz bandwidth spectral tile.

Fig. 6 is a schematic flow chart of a method of resource allocation of one embodiment of the present invention.

Fig. 7 is a schematic diagram of time-frequency resource allocation according to an embodiment of the present invention.

Fig. 8 is a diagram of resource indication information according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of resource indication information according to another embodiment of the present invention.

Fig. 10 is a schematic diagram of resource indication information according to another embodiment of the present invention.

Fig. 11 is a schematic flow chart of a method of resource allocation according to another embodiment of the present invention.

Fig. 12 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention.

Fig. 13 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention.

Fig. 14a is a schematic block diagram of resource indication information of a medium access control layer according to an embodiment of the present invention.

Fig. 14b is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention.

Fig. 14c is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention.

Fig. 15 is a schematic block diagram of resource indication information according to another embodiment of the present invention.

Fig. 16 is a schematic flow chart of a method of resource allocation according to another embodiment of the present invention.

Fig. 17 is a schematic block diagram of a transmitting-end device of an embodiment of the present invention.

Fig. 18 is a schematic block diagram of a transmitting-end device of an embodiment of the present invention.

Fig. 19 is a schematic block diagram of a transmitting-end device according to another embodiment of the present invention.

Fig. 20 is a schematic block diagram of a receiving-end apparatus 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 diagram of a WLAN system. As shown in fig. 1, the WLAN system includes one or more access points AP 11 and one or more stations STA 12. 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, and 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 with 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 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) System, Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE) System.

Accordingly, the network device may be a Base Transceiver 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), and the present invention is not limited thereto. 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).

Fig. 2 is a schematic block diagram of a non-time division multiplexed PPDU.

In a non-time division multiplexing physical layer convergence Procedure Protocol Data Unit (PPDU) of a next generation standard 802.11ax, the non-time division multiplexing PPDU includes a preamble and a data field. The preamble portion includes a legacy preamble followed by a High Efficiency (HE) preamble. The Legacy preamble includes a Legacy short Training Field (L-STF), a Legacy Long Training Field (L-LTF), and a Legacy signaling Field (L-SIG). . The High efficiency preamble includes a repeated signaling Field (Rsensed Legacy Signal Field, RL-SIG), a High efficiency signaling Field A (HE-SIGA), a High efficiency signaling Field B (HE-SIGB), a High efficiency short Training Field (HE-STF) and a High efficiency Long Training Field (HE-LTF). It should be understood that multiple HE-LTFs may be included in a non-time multiplexed PPDU. The data field in the non-time division multiplexed PPDU may be located after the preamble. Specifically, a schematic structural diagram of a non-time-division-multiplexed PPDU may be as shown in fig. 2.

Specifically, a length (length) field may be included in the L-SIG, which is the length of the non-time division multiplexed PPDU minus the length of the legacy preamble, i.e., the length from the end of the L-SIG to the end of the non-time division multiplexed PPDU.

The time division multiplexed PPDU structure of the next generation standard 802.11ax may be as shown in fig. 3. Specifically, the time division multiplexed PPDU includes a preamble and a plurality of data fields in time. The preamble includes a legacy preamble and a high efficiency preamble. The legacy preamble includes L-STF, L-LTF and L-SIG, and the high efficiency preamble includes RL-SIG, HE-SIGA, HE-SIGB, HE-STF and HE-LTF. The time-division multiplexed PPDU may include a plurality of HE-LTFs, each data field being preceded by a corresponding HE-STF and HE-LTF for automatic gain control and channel estimation. The L-SIG in the time division multiplexed PPDU may include a length field indicating a length that may be the length of the time division multiplexed PPDU minus the length of the legacy preamble.

The data field shown in fig. 3 may be a broadcast frame (e.g., a multicast frame) that is used to trigger uplink multi-user transmission, including a resource allocation indication for multiple users. The multicast frame may be only placed in a first time period of the multiple time periods divided by the primary scheduling, may be only placed in a last time period of the multiple time periods divided by the primary scheduling, and may also be placed in several time periods of other time periods, which is not limited in this embodiment of the present invention.

The existing indication information for Resource Allocation in the Frequency domain may include public parameter information (CommonParameters), Frequency domain Resource Allocation (Frequency Resource Allocation) indication information, Station identification (STA ID) information, and per-scheduled Station parameter information (User Parameters). The indication information for resource allocation in the frequency domain may be located in the high efficiency signaling field B, or in a frame of Media Access Control (MAC), or in a part of the frame of the MAC. For example, the frequency domain resource allocation indication information, the station identification information and the station parameter information in the indication information may be located in a frame body of the MAC.

The current rule for resource block size division determined by 802.11ax is to use 26 subcarriers as a resource block, here denoted by 1 × 26. As shown in fig. 4, taking 20MHz bandwidth as an example, the number of Discrete Fourier transform/Inverse Discrete Fourier transform (DFT/IDFT) points of 802.11ax in the data symbol portion is 256, that is, there are 256 subcarriers. The subcarriers-1, 0, and 1 are Direct Current (DC) subcarriers, and the left subcarrier from subcarrier-122 to subcarrier-2 and the right subcarrier from subcarrier-2 to subcarrier 122 are used for carrying data information, that is, 242 subcarriers are used for carrying data information. Sub-carrier-128 to sub-carrier-123 and sub-carrier 123 to sub-carrier 128 are guard bands. The 242 subcarriers are divided into 9 resource blocks of 26 subcarriers each, and 8 unused subcarriers remain.

Fig. 5 is a diagram of a 20MHz bandwidth spectral tile.

As shown in fig. 5, the frequency domain resources of 20MHz bandwidth may include the following four types of frequency domain resource blocks, namely:

1 × 26, indicating that one frequency domain resource block is composed of one sub-frequency domain resource block (i.e., 26 subcarriers).

2 × 26, one frequency domain resource block is represented by two sub-frequency domain resource blocks (i.e., 2 × 26 subcarriers).

4 × 26, indicating that one frequency domain resource block is composed of four sub-frequency domain resource blocks (i.e., 4 × 26 subcarriers).

242, one frequency domain resource block is composed of 242 subcarriers.

The frequency domain resource block of 4 × 26 type includes 106 subcarriers, that is, 102 data subcarriers and 4 pilot subcarriers, and in the following, for avoiding redundancy, description of the same or similar cases is omitted.

As shown in fig. 5, the frequency domain resource block distribution map of the frequency domain resources with the 20MHz bandwidth may be divided into four layers, where the first layer is a frequency domain resource block distribution map of 1 × 26 type, the second layer is a frequency domain resource block distribution map of 2 × 26 type and a frequency domain resource block distribution map of 1 × 26 type, the third layer is a frequency domain resource block distribution map of 4 × 26 type and a frequency domain resource block distribution map of 1 × 26 type, and the fourth layer is a frequency domain resource block distribution map of 242 type.

The frequency domain resource of the 20MHz bandwidth (i.e., an example of the target frequency domain resource) may be formed by combining any frequency domain resource block in the first layer to the third layer, and includes 242 subcarriers, and each station can only allocate one of the frequency domain resource blocks.

Alternatively, the frequency domain resource spectrum of the 20MHz bandwidth may be composed of frequency domain resource blocks in the fourth layer, in which case, the frequency domain resource of the 20MHz bandwidth is allocated to one station, and the condition of resource allocation may be indicated by the bandwidth indication information in the preamble and the single user transmission indication bit.

The resource scheduling method of the present invention mainly relates to a case where frequency domain resources of 20MHz bandwidth are combined by any frequency domain resource blocks in the first layer to the third layer and allocated to a plurality of stations.

Fig. 5 shows only a spectral block diagram for a 20MHz bandwidth. A 40MHz bandwidth spectral block diagram and an 80MHz bandwidth spectral block diagram can also be analogized to a 20MHz bandwidth spectral block diagram. The resource blocks of the 40MHz bandwidth may be defined as 1 × 26, 2 × 26, 4 × 26, 242, 2 × 242. The frequency spectrum block diagram of the 40MHz bandwidth can be divided into five layers, and the position of the middle gap can be a direct current subcarrier. The first layer was a1 × 26 profile, the second layer was 2 × 26 and 1 × 26 profiles, the third layer was a4 × 26 and 1 × 26 profiles, the fourth layer was a 242 profile, and the fifth layer was a2 × 242 profile. The spectrum profile of the 40MHz bandwidth may be a spectrum of 484 subcarriers for any combination of resource blocks in these four layers. Moreover, each station can only allocate one of the resource blocks.

Alternatively, the frequency domain resource spectrum of the 40MHz bandwidth may be composed of frequency domain resource blocks in the fifth layer, in this case, the frequency domain resource of the 40MHz bandwidth is allocated to one station, and the condition of resource allocation may be indicated by bandwidth indication information in the preamble and a single user transmission indication bit.

The resource blocks of the 80MHz bandwidth may be defined as 1 × 26, 2 × 26, 4 × 26, 242, 2 × 242, and 996. The frequency spectrum block diagram of the 80MHz bandwidth can be divided into six layers, and the position of the middle gap can be a direct current subcarrier. The first layer was the 1 × 26 profile, the second layer was the 2 × 26 and 1 × 26 profiles, the third layer was the 4 × 26 and 1 × 26 profiles, the fourth layer was the 242 profile, the fifth layer was the 2 × 242 profile, and the sixth layer was the 996 profile. The spectrum distribution diagram of the 80MHz bandwidth can be a spectrum with the size of 484 subcarriers formed by combining any resource blocks in the five layers. Moreover, each station can only allocate one of the resource blocks.

Alternatively, the frequency domain resource spectrum of the 80MHz bandwidth may be composed of frequency domain resource blocks in the sixth layer, in this case, the frequency domain resource of the 80MHz bandwidth is allocated to one station, and the condition of resource allocation may be indicated by the bandwidth indication information in the preamble and the single user transmission indication bit. It will be appreciated that, analogous to the spectral profile described above, it is also possible to extend to 160MHz etc.

It should be understood that resource allocation is divided into two types, one is a centralized resource allocation method, that is, one indication information (a set of frequency domain resource allocation indications) in a frequency domain resource allocation indication set that all stations are allocated, and the station identification information is concentrated in one indication information (a set of station identification information). Another method is a distributed resource allocation method based on each station, namely, spectrum resource allocation indication and station identification information for allocating the station are distributed in the station parameter information of each station. The centralized resource allocation methods described in fig. 6 to 14 are all the first. Depicted in fig. 15 is another method of distributed resource allocation on a per-site basis.

Fig. 6 is a schematic flow chart of a method of resource allocation of one embodiment of the present invention. The method shown in fig. 6 may be executed by a sending end device, where the sending end device may be an access point or a station. The method shown in fig. 6 includes:

the sending end device determines resource indication information used for resource allocation in the time domain and the frequency domain, where the resource indication information includes time indication information and first indication information used for resource allocation in the frequency domain, where the time indication information includes the number of time periods for resource allocation in the time domain or the time indication information includes the number of time periods and the length of time periods for resource allocation in the time domain;

and 620, sending resource indication information to the receiving end equipment so that the receiving end equipment can determine the allocated time-frequency resources according to the resource indication information.

In the embodiment of the present invention, a sending end device sends, to a receiving end, indication information for performing resource allocation in a frequency domain and time indication information for performing resource allocation in a time domain. Thus, the embodiment of the invention indicates resource allocation in two dimensions of frequency and time, and realizes the allocation of time-frequency resources in time domain and frequency domain, namely, the resource division is carried out by adopting frequency division multiplexing and time division multiplexing simultaneously.

It should be understood that the first indication information may be used for resource allocation in the frequency domain. The first indication information may be resource indication information in an existing resource allocation method adopting frequency division multiplexing, that is, may be partial information in the HE-SIGB. Based on the first centralized resource allocation method, the first indication information may include frequency domain resource allocation indication information indicating frequency division, station identification information, and station parameter information. In addition, tail bits for convolutional coding and cyclic redundancy codes for error detection may also be included in the efficient signaling field B.

The embodiment of the invention can add time indication information in the public parameter information. As an embodiment, the number of the plurality of bit indication periods may be added to the common parameter information. For example, 1 bit is added for achieving an indication of at most 2 time periods; as another example, 2 bits are added for achieving an indication of a maximum of 4 time periods. Optionally, the time indication information may also be placed in other positions in the HE-SIG-B, which is not limited in the embodiment of the present invention.

Optionally, as an embodiment, the time period for performing resource allocation in the time domain is equal in length, and the time indication information only includes the number of the time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of the time periods.

Specifically, the time slot lengths divided in a certain schedule may be the same. At this time, the time indication information may only include the number of time segments, and the length of the time segments may be implicitly represented. Each equal length slot length may be implicitly indicated according to the number of slots and the total length of the data field. The total length of the data fields may be the sum of all data fields in the time division multiplexed PPDU, which may be calculated by subtracting the HE-STF and HE-LTF lengths before the HE-SIG-A, HE-SIF-B and the respective data fields from the length indicated by the length field in the L-SIG. When the total length of the data field cannot be divided by the number of time segments, the length of the last time segment may be smaller than the lengths of other time segments of equal length. Optionally, as another embodiment, the time indication information with the same time period length may also include the number of time periods and the time period length. The time period length may be one, that is, the length of the time period with equal length is indicated. The time period lengths may also be two, i.e. indicating the length of the time period and the length of the last time period being equal.

Optionally, as another embodiment, the time periods divided in a certain schedule may have different lengths. Specifically, the time indication information may include the number of time periods and the length of the time periods. The time period length may correspond to the number of time periods one to one. For example, if a schedule is divided into 4 time segments, i.e. the number of time segments is 4, the length of each time segment may be 4 values, which respectively indicate the length of each time segment.

Optionally, as another embodiment, the time indication information further includes broadcast frame indication information, and the broadcast frame indication information is used to indicate a time period for transmitting the broadcast frame.

Specifically, the broadcast frame indication information may indicate which time period is used to transmit a broadcast frame (e.g., a multicast frame). Optionally, as an embodiment, the number of time slots divided by a certain schedule is 4, and the broadcast frame indication information for indicating a multicast frame may be "1010", which indicates that the 1 st time slot and the 3 rd time slot are broadcast frames, and the 2 nd time slot and the 4 th time slot are normal data frames.

Optionally, as another embodiment, when a broadcast frame (such as a multicast frame) is transmitted only in the 1 st time period, the broadcast frame indication information may also indicate whether the broadcast frame is transmitted in the first time period by using 1 bit. For example, if the number of slots is 4 and the broadcast frame indication information may be "1", it indicates that the 1 st slot is a broadcast frame (multicast frame), and the other 3 slots are normal data frames. The broadcast frame indication information may be "0", which indicates that all 4 time segments are normal data frames.

Optionally, as another embodiment, when a broadcast frame (such as a multicast frame) is transmitted only in the last 1 time period, the broadcast frame indication information may also indicate whether the broadcast frame is transmitted in the first time period by using 1 bit. For example, if the number of time slots is 4 and the broadcast frame indication information may be "1", it indicates that the last 1 time slot is a broadcast frame (multicast frame), and the other 3 time slots are normal data frames. The broadcast frame indication information may be "0", which indicates that all 4 time segments are normal data frames.

It should be understood that, in the embodiment of the present invention, based on fig. 7, fig. 12, and the schematic diagram of time-frequency resource allocation in fig. 13, the time period described in the embodiment is a time period corresponding to a normal data frame, that is, the time period described in the embodiment does not include a time period for sending a broadcast frame. As an embodiment, the number of periods for transmitting the broadcast frame may be one. For example, the number of time periods divided by a certain schedule is 4, the bit indication of the broadcast frame indication information is "1000", which indicates that the first time period is used for transmitting a broadcast frame, and the other three time periods are normal data frames. Then, in the embodiment of the present invention, based on fig. 7, the descriptions of fig. 12 and fig. 13 only refer to the other 3 time periods excluding the first time period, and then the resource indication on the time frequency is discussed based on the 3 time periods. The embodiment of the present invention may also transmit the broadcast frame in the last time period, that is, the bit indication of the broadcast frame indication information is "0001". It should be understood that the time period for transmitting the broadcast frame is not limited in the embodiments of the present invention. Optionally, as another embodiment, the number of time periods for transmitting the broadcast frame may also be multiple. For example, the number of the time segments divided by a certain schedule is 6, the bit of the broadcast frame indication information is indicated as "101000", which indicates that the first time segment and the third time segment are used for transmitting the broadcast frame, and the other four time segments are normal data frames. Then, the embodiment of the present invention is based on fig. 7, fig. 12, and fig. 13, and the embodiment of the present invention has only 4 time periods, and then the resource indication on the time frequency is discussed based on these 4 time periods. It should also be understood that for the embodiment description of the normal data frame, the remaining 4 time segments are considered adjacent to each other, i.e. the 2 nd and 4 th time segments of the 6 time segments are adjacent.

The time indication information may also be obtained by including a time start point indication and a time offset indication in each station parameter information. However, this method has a large bit overhead. In the existing protocol of 802.11ax, an Orthogonal Frequency Division Multiplexing (OFDM) data symbol length is 12.8us, and assuming that a contention period length is 0.8us, the OFDM symbol length is 13.6 us. The maximum transmission opportunity occupied by an ap is 5.484ms, and if the time indication is in units of 8 OFDM symbols, 5.484ms/(13.6 × 8) us ═ 51 OFDM symbols, that is, the time starting point and the time offset each require 6(log (51)) bits of indication. At most 9 sites can be invoked in a 20MHz bandwidth, then a total of 108 bits are required for indication. For larger bandwidths (40/80/160MHz), if a maximum of 16 stations can be scheduled, a total 192-bit indication is required. Therefore, such an embodiment requires that the resource allocation in time be indicated separately for each station, with a large bit overhead.

As an embodiment, the resource indication information in the embodiment of the present invention may include first indication information and time indication information. The first indication information may include frequency domain resource allocation indication information, station identification information, and station parameter information during a one-time scheduling period. The frequency domain resource allocation indication information of the multiple time periods may form a frequency domain resource allocation indication information set, the multiple pieces of station identification information may form a station identification information set, and the station parameter information may include station parameter information of the first station, station parameter information of the second station, station parameter information of the third station, and the like.

The frequency domain resource allocation indication information may be a frequency spectrum division condition corresponding to each time segment. The description of the frequency domain resource allocation indication information may be as follows: the frequency domain resource allocation indication information is used for indicating frequency division. Specifically, each time segment has a corresponding frequency domain resource allocation indication information on the frequency band, and a plurality of frequency domain resource allocation indication information corresponding to a plurality of time segments form a frequency domain resource allocation indication set. The embodiment of the invention does not limit the form of the frequency domain resource allocation indication information. For example, the frequency domain resource allocation indication information may be a bitmap (bitmap) indication, that is, resource blocks allocated to the same station are represented by consecutive "1 (0)", and switching to another station is represented by a transition of 1- > 0 or 0- > 1. As shown in the schematic diagram of time-frequency resource allocation shown in fig. 7, the frequency-domain resource allocation indication information obtained by the method may be 001101100 in time period 1 and 001101111 in time period 2. It should be understood that the method can be read from the top down or from the bottom up in the vertical axis of fig. 7.

Specifically, if the schematic diagram of time-frequency resource allocation shown in fig. 7 in the following text is taken as an example, and a bitmap (bitmap) indication in the above example is taken as the frequency domain resource allocation indication information, the frequency domain resource allocation indication information may be: 001101100001101111, the site identification information set may be: AID1AID2 AID3 AID4 AID5 AID1AID 6 AID7AID 8.

Therefore, the embodiment of the invention avoids independently indicating the resource allocation on time for each site, and can save bit overhead.

Optionally, as another embodiment, the first indication information may include station identification information, where the resource indication information may further include station identification repetition information, and the station identification repetition information is used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in the adjacent time period.

It should be understood that the station identification information may be identification information of a certain station. The set of site identification information in the embodiments may be understood as a set of site identification information of a plurality of sites. It should also be understood that the station identification repetition information is used to indicate whether the station identification information of a certain resource block is the same as the station identification information of an adjacent resource block of an adjacent time period, and the station identification repetition information set may include a set of station identification repetition information corresponding to each station identification information.

In addition, in the embodiment of the present invention, repeated information may be further identified to a sending station of a receiving end device to indicate whether station identification information allocated to a certain resource block in a current time period is the same as station identification information allocated to a resource block adjacent to the resource block in an adjacent time period. Therefore, the embodiment of the invention can omit part of the site identification information and further save the bit overhead.

Fig. 7 is a schematic diagram of time-frequency resource allocation according to an embodiment of the present invention. Fig. 8 is a diagram of resource indication information according to an embodiment of the present invention. The resource indication information according to an embodiment of the present invention will be described with reference to fig. 7 and 8.

The station identification repetition information is first station identification repetition information corresponding to the first station identification information, and the first station identification repetition information is 1-bit information and is appended behind the first station identification information.

The station identifier repetition information may indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the previous time period, or may indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the subsequent time period. That is, the indication method of the station identification information may include the above two methods.

Assuming that the station identification information filled in each resource block is as shown in fig. 7, for simplicity of description, the station identification information may be represented by aid n, where n is a sequence number. Each station identification information may be represented by 11-bit data. As shown in fig. 7, the station identification information filled in the first resource block in the time period 1 is AID5, the station identification information filled in the third resource block is AID3, and the station identification information filled in the fifth resource block is AID 1. As can be seen from fig. 7, the station identification information filled in the resource blocks of the time period is overlapped, and the station identification information generally needs 11 bits of data to be represented, so that the bit overhead is relatively large. The embodiment of the invention can add 1 bit of information to each site identification information to indicate whether the site identification information allocated to the first frequency band in the current time period is the same as the site identification information allocated to the first frequency band in the adjacent time period. Therefore, the embodiment of the invention can avoid indicating repeated site identification information and save bit overhead.

Forward comparison: in the first method, the station identifier repetition information may indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the previous time period.

Specifically, when the first station identifier repetition information of 1-bit information appended after the first station identifier information is 1, it may indicate that the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the previous time period; when the first station identifier repetition information is 0, it may indicate that the station identifier information allocated to the first frequency band in the current time period is different from the station identifier information allocated to the first frequency band in the previous time period. It should be understood that the first frequency band may be any frequency band in the entire frequency band, and the first station identification information may be station identification information allocated to any resource block.

The 1-bit information appended after the station identification information in the first time period may be defaulted to 0. Since the forward comparison method of the first method is adopted and the same station identification information is included in the second time period, the station identification information repeated in the first time period and the corresponding station identification repetition information can be omitted in order to save the repeated station identification information. For example, taking fig. 5 as an example, the station identification information (STA ID) + station identification repetition information (which may be represented by repeat bits) in the first time period may be: AID 20 AID 30 AID 40 AID 50, STA ID + repeat bits on the second time period may be AID11AID 60 AID 70 AID 80.

And (3) backward comparison: in the second method, the station identifier repetition information may also indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the subsequent time period.

Specifically, when the first station identifier repetition information of 1-bit information appended after the first station identifier information is 1, it may indicate that the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the subsequent time period; when the first station identifier repetition information is 0, it may indicate that the station identifier information allocated to the first frequency band in the current time period is different from the station identifier information allocated to the first frequency band in the later time period. It should be understood that the first frequency band may be any frequency band in the entire frequency band, and the first station identification information may be any station identification information in all station identification information allocated to all resource blocks.

The 1-bit information appended after the station identification information in the last time period may be defaulted to 0. Taking fig. 7 as an example, since the backward comparison method of the second method is adopted and the same station id information is included in the second time period, in order to save duplicated station id information, the station id information duplicated in the second time period and the corresponding station id duplicated information are omitted. For example, taking fig. 7 as an example, the station identification information (STA ID) + station identification repetition information (which may be represented by repeat bits) in the first time period may be: AID11AID 20 AID 30 AID 40 AID 50, STA ID + repeat bits on the second time period may be AID 60 AID 70 AID 80.

In the above two methods, the resource indication information may be summarized as the resource indication information shown in fig. 8, that is, the resource indication information shown in fig. 8 may include a Frequency resource allocation indication information set (which may be represented by a Frequency resource allocation List), a (site identification information + site identification repetition information) set, and site parameter information (which may be represented by STA Parameters) of each site. The station parameter information may include station parameter information of the first station, station parameter information of the second station, and the like. The resource indication information may further include public parameter information. The station parameter information of the first station may include a Modulation and Coding Scheme (MCS), a Number of Streams (Number of Streams, Nsts), a Coding type (Coding type), transmit beamforming (TxBF), or Space Time Block Code (STBC).

Optionally, as another embodiment, the station identification repetition information is second station identification repetition information corresponding to the station identification information allocated in the first time period, and the second station identification repetition information is at least one bit of information.

Specifically, if the number of the station identification information allocated in a certain time period (i.e., the first time period) is at least one, the second station identification repetition information is corresponding at least one bit of information. The first time period may be any time period, and the second station identifier repetition information is station identifier repetition information corresponding to any time period. For example, if 5 pieces of station identification information are allocated to five resource blocks in a certain time period, the second station identification repetition information is 5 bits of information. The set of station identity repetition information identifies a set of repetition information for a plurality of second stations.

It should be understood that the station identification repetition information described in fig. 8 is 1-bit information, and the station identification repetition information may be appended to the station identification information. When the station identification repetition information indicates second station identification repetition information corresponding to the station identification information allocated in a certain time period, the second station identification repetition information is at least one bit of information, and the second station identification repetition information at this time can be stored independently without being attached to other information. For example, a station identification repetition information set composed of a plurality of second station identification repetition information corresponding to a plurality of time periods may be located between the frequency domain resource allocation indication information set and the station identification information set. This embodiment may be as shown in fig. 9. Fig. 9 is a schematic diagram of resource indication information according to another embodiment of the present invention.

The resource indication information shown in fig. 9 may include a frequency resource allocation indication information set, a station identification repetition information set, and station parameter information (which may be denoted by STA Parameters) of each station. The station parameter information of each station may include station parameter information of the first station, station parameter information of the second station, and the like. The resource indication information shown in fig. 7 may further include public parameter information. The station parameter information of the first station may include a Modulation and Coding Scheme (MCS), a Number of streams (Number of streams, Nsts), a Coding type (Coding type), Transmit Beamforming (TxBF), or Space Time Block Code (STBC).

In fig. 9, the station identity repeated information corresponding to each station identity information may be extracted separately and located between the frequency domain resource allocation indication information set and the station identity information set. Corresponding to the above two comparison methods of forward and backward directions, in conjunction with fig. 7 and 9, the resource indication information can be expressed as:

the method I': the station identification repetition information set is 00001000, and the station identification information set is STA2STA 3STA4 STA5 STA1 STA6 STA7 STA 8.

In method one', there may be another embodiment. The station identification repetition information set may be 000001000, and the station identification information set may be STA1 STA2STA 3STA4 STA5 STA6 STA7 STA 8. In summary, both embodiments in the first method can avoid repeated site identification information, and save bit overhead.

The method II': the station identification repetition information set is 10000000, and the station identification information set is STA1 STA2STA 3STA4 STA5 STA6 STA7 STA 8.

Optionally, as another embodiment, the first indication information includes frequency domain resource allocation indication information for indicating frequency division, and the second station identifier repetition information is appended to the frequency domain resource allocation indication information.

Specifically, the second station identifier repetition information may be added to the corresponding frequency domain resource allocation indication information according to the division of the time periods, and the frequency domain resource allocation indication information of all the time periods and the second station identifier repetition information jointly form a set, that is, a set (frequency domain resource allocation indication information + station identifier repetition information). This embodiment may be as shown in fig. 10. Fig. 10 is a schematic diagram of resource indication information according to another embodiment of the present invention. The resource indication information shown in fig. 10 may include a (frequency resource allocation indication information + station identification repetition information) set, a station identification information set, and station parameter information (which may be denoted by STA Parameters) of each station. The station parameter information of each station may include station parameter information of the first station, station parameter information of the second station, and the like. The resource indication information shown in fig. 10 may further include public parameter information. The station parameter information of the first station may include a Modulation and Coding Scheme (MCS), a Number of Streams (Number of Streams, Nsts), a coding type (coding type), Transmit Beamforming (TxBF), or Space Time Block Code (STBC).

In fig. 10, in the embodiment of the present invention, the station identifier repetition information corresponding to the station identifier information in each time period may be extracted respectively, and is appended to the frequency domain resource allocation indication information in the corresponding time period. Corresponding to the above two comparison methods of forward and backward directions, in conjunction with fig. 7 and 10, the resource indication information can be expressed as:

the method I comprises the following steps: the frequency domain resource allocation over the first time period is indicated as 001101100, the additional corresponding second station identification repetition information is 0000, and the station identification information set is AID2 AID3 AID4 AID 5. The frequency domain resource allocation over the second time period is indicated as 001101111, the additional corresponding second station identification repetition information is 1000, and the station identification information set is AID1AID 6 AID7AID 8. The (frequency domain resource allocation indication information + station identity repetition information) set is: 00110110000000011011111000.

in method one ", other embodiments may also be included. The frequency domain resource allocation indication information in the first time slot is 001101100, the additional corresponding second station identification repetition information is 00000, and the corresponding plurality of station identification information is AID1AID2 AID3 AID4 AID 5. The frequency domain resource allocation indication information in the second time slot is 001101111, the appended corresponding second station identification repetition information is 1000, and the corresponding plurality of station identification information is AID6 AID7AID 8. The (frequency domain resource allocation indication information + station identity repetition information) set is: 001101100000000011011111000. such an embodiment may also omit the bit overhead of the station identification information.

The second method comprises the following steps: the frequency domain resource allocation over the first time period is indicated as 001101100, the additional corresponding second station identification repetition information is 10000, and the corresponding multiple station identification information AID1AID2 AID3 AID4 AID 5. The frequency domain resource allocation over the second time period is indicated as 001101111, the additional corresponding second station identification repetition information is 000, and the corresponding multiple station identification information is AID6 AID7AID 8. The (frequency domain resource allocation indication information + station identity repetition information) set is: 00110110010000001101111000.

fig. 11 is a schematic flow chart of a method of resource allocation according to another embodiment of the present invention. The steps in fig. 9 that are the same as in fig. 6 may be numbered the same, and prior to 620, the method shown in fig. 11 further includes:

and 630, performing compression operation on the station identifier repeated information set, where the station identifier repeated information set includes station identifier repeated information corresponding to the station identifier information allocated to all resource blocks.

In addition, after the station identification repeated information set is compressed, the bit overhead can be further saved.

It should be understood that, in the embodiment of the present invention, the compression operation may not be performed, and part of the information may be omitted when the resource indication information is generated.

Optionally, as another embodiment, in 630, when the station identifier repetition information is specifically used to indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the previous time period, the station identifier repetition information set does not include the station identifier repetition information corresponding to the station identifier information allocated to all frequency bands in the first time period; when the station identifier repetition information is specifically used to indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the subsequent time period, the station identifier repetition information set does not include the station identifier repetition information corresponding to the station identifier information allocated to all the frequency bands in the last time period. The two parallel methods may be referred to as a first compression method.

The above-mentioned method one, method two, method one ', method two', method one ", and method two" will be described separately below in conjunction with the first compression method.

Specifically, for method one, the (station identification information + station identification repetition information) set compressed in the first time period may be: AID2 AID3 AID4 AID5, the (station identification information + station identification repetition information) set on the second time period may be AID11AID 60 AID 70 AID 80.

For method two, the (station id information + station id repetition information) set compressed in the first time period may be: AID11AID 20 AID 30 AID 40 AID 50, the (station identity information + station identity repetition information) set over the second time period may be: AID6 AID7AID 8.

For the first method, the two embodiments that may be included in the first method may both adopt the first compression method, and the obtained compressed site identity repeated information sets are both 1000.

For method two', the set of site identity repetition information is 10000.

For both embodiments included in method one ", this compression method may be adopted, and the obtained compressed (frequency domain resource allocation indication information + station identity repetition information) set may be: 0011011000011011111000.

for method two, ((frequency domain resource allocation indication information + station identity repetition information)) set may be: 00110110010000001101111.

optionally, as another embodiment, the station identifier repetition information set does not include station identifier repetition information corresponding to the station identifier information allocated to the first time-frequency resource block, where the frequency band of the first time-frequency resource block is divided differently in the time period of the first time-frequency resource block and the previous time period and the allocated station identifier information is different, or the frequency band corresponding to the first time-frequency resource block is divided differently in the time period of the first time-frequency resource block and the subsequent time period and the allocated station identifier information is different.

Specifically, at 630, the compressing operation may further include: and deleting the station identification repeated information corresponding to the station identification information allocated to the first time-frequency resource block in the station identification repeated information set, wherein the frequency division of the frequency band of the first time-frequency resource block in the time period of the first time-frequency resource block is different from the frequency division of the frequency band of the previous time period and the allocated station identification information is different, or the frequency division of the frequency band corresponding to the first time-frequency resource block in the time period of the first time-frequency resource block is different from the frequency division of the frequency band of the next time period and the allocated station identification information is different. This method may be referred to as a second compression method.

The second compression method of this embodiment will be described in detail with reference to fig. 12 and 13.

Fig. 12 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention. The allocation map of fig. 12 includes 4 time periods. The time-frequency resource allocation shown in fig. 12 may adopt the second compression method. Taking the example that the station identifier repetition information is stored separately, the obtained resource indication information may be as follows:

if the second embodiment in the first method is adopted, the frequency domain resource allocation indication information set is 001101100000010000001101111001101100, the station identification repetition information set is 00000010001110100, and the station identification information set is AID1AID2 AID3 AID4 AID5 AID6 AID7AID8 AID9 AID10 AID11AID 12. The first compression method shown in fig. 11 is adopted to obtain: the station identification repetition information set is 010001110100.

If the method two is adopted, the frequency domain resource allocation indication information set is 001101100000010000001101111001101100, the station identification repeated information set is 00100011101000000, and the station identification information set is AID1AID2 AID3 AID4 AID5 AID6 AID7AID8 AID9 AID10 AID11AID 12. The first compression method shown in fig. 11 is adopted to obtain: the station identification repetition information set is 001000111010.

On the basis of this first compression, a second compression can be carried out again. The process of performing the compression again will be described below.

In the resource allocation of time division multiplexing, when a resource block allocated to the same site is allocated, the resource block allocated in the previous time period is not smaller than the resource block allocated in the next time period, and the small resource block is in the large resource block frequency band set. We may simply refer to this condition as a condition for time division multiplex resource allocation. Under the condition of satisfying time division multiplexing resource allocation, assuming that the sizes of resource blocks allocated by the same site in the previous and subsequent time periods are the same, the second compression can be performed again on the basis of the first compression. The process of performing the compression again will be described below.

The time-frequency resource allocation map shown in fig. 12 has the following characteristics:

the method I': the frequency band of the first time-frequency resource block is divided differently in the time period of the first time-frequency resource block and the frequency band of the previous time period, and the allocated station identification information is different. For example, the time frequency resource block in which the AID6 is located in the time period 2 may satisfy the condition of the first time frequency resource block. The frequency bands corresponding to the AID6 are divided differently in the time segment 1, that is, the frequency band in the time segment 1 is divided into two segments 2 × 26, and the frequency band in the time segment 2 is divided into 1 segment 4 × 26. And the frequency band corresponding to the time frequency resource block where the AID6 is located is allocated to the AID1 and the AID2 in the time slot 1, and is allocated to the AID6 in the time slot 2. That is, the frequency band has different frequency band division in time period 1 and time period 2 and different allocated station identification information. Specifically, the size of the resource block allocated in slot 1 is (2 × 262 × 261 × 262 × 26), the size of the resource block allocated in slot 2 is (4 × 261 × 264 × 26), and the sizes of the resource blocks are all changed except for the middle resource block. According to the period 2, the station identification repetition information corresponding to the AID6 and the AID7 may be omitted on the period 2 compared to that of the previous period.

The method II': correspondingly, the frequency band of the first time-frequency resource block is divided differently in the time period of the first time-frequency resource block and the frequency band of the latter time period, and the allocated station identification information is different. For example, the time frequency resource block in which the AID6 is located in the time period 2 may satisfy the condition of the first time frequency resource block. The frequency bands corresponding to the AID6 are divided differently in the time segment 3, that is, the frequency band in the time segment 3 is divided into two segments 2 × 26, and the frequency band in the time segment 2 is divided into 1 segment 4 × 26. And the frequency band corresponding to the time frequency resource block where the AID6 is located is allocated to the AID6 in the time slot 2, and is allocated to the AID8 and the AID9 in the time slot 3. That is, the frequency band is divided differently in time period 2 and time period 3 and the allocated station id information is different. Specifically, the size of the resource block allocated in slot 2 is (4 × 261 × 264 × 26), the size of the resource block allocated in slot 3 is (2 × 262 × 261 × 264 × 26), and the sizes of the resource blocks other than the sizes of the resource blocks where AID3 and AID7 are located are not changed. According to the comparison of the time slot 2 and the later time slot, the station identification repetition information corresponding to the AID6 in the time slot 2 can be omitted.

If method one' is used, the first compression method shown in fig. 11 is used to obtain: the station identification repetition information set is 001000111010. Based on the second compression method shown in fig. 11, the following results are obtained: the station identification repetition information set is 111101.

If the method two' is adopted, the first compression method shown in FIG. 11 is adopted to obtain: the station identification repetition information set is 001000111010. Based on the second compression method shown in fig. 11, the following results are obtained: the station identification repetition information set is 111101.

Fig. 13 is a schematic diagram of time-frequency resource allocation according to another embodiment of the present invention. The allocation map of fig. 13 includes 4 time periods. The time-frequency resource allocation shown in fig. 13 may adopt the compression method shown in fig. 11 described above. Taking the example that the station identifier repetition information is stored separately, the obtained resource indication information may be as follows:

if the second embodiment of the first method is adopted, the set of frequency domain resource allocation indication information is 000010000001101100001101111001101100, and the set of station identity repetition information is 00010100011010100. The first compression method shown in fig. 11 is adopted to obtain: the station identification repetition information set is 10100011010100.

If the method two is adopted, the frequency domain resource allocation indication information set is 000010000001101100001101111001101100, and the station identity repetition information set is 11001100101000000. The first compression method shown in fig. 11 is adopted to obtain: the station identification repetition information set is 110011001010.

On top of this compression, the second compression method can be carried out again. The process of performing the compression again will be described below.

Under the condition of meeting the allocation condition of time division multiplexing resources, the sizes of the resource blocks allocated to the same station in the front time period and the back time period are assumed to be different, namely, if the resource blocks are allocated to the front time period and the back time period of one station, the resource blocks allocated in the back time period are smaller than the resource blocks allocated in the front time period, and the frequency band of the small resource blocks allocated in the back time period is in the subset of the large resource blocks allocated in the front time period. For example, if the station identification information spans multiple time periods, and the small resource blocks are fixed within the relative frequency bands of the large resource blocks, such as the upper frequency band or the lower frequency band of the large resource blocks, rather than selecting one of them. At this time, the method of time-frequency resource allocation shown in fig. 13 is also applicable to the second compression method shown in fig. 11.

In the compression method, the frequency band of the first time-frequency resource block is divided differently in the time period of the first time-frequency resource block and the frequency band of the previous time period, and the allocated station identification information is different. For example, the time frequency resource block in which the AID4 is located in the time period 2 may satisfy the condition of the first time frequency resource block. The frequency band corresponding to the AID4 has different frequency band divisions in the time segment 2 and the time segment 1, that is, the frequency band division in the time segment 1 is a part of 4 × 26, and the frequency band division in the time segment 2 is 1 by 2 × 26. And the frequency band corresponding to the time frequency resource block where the AID4 is located is allocated to the AID1 in the time slot 1 and is allocated to the AID4 in the time slot 2. That is, the frequency band has different frequency band division in time period 1 and time period 2 and different allocated station identification information. According to the comparison of the time slot 2 with the previous time slot, the station identification repetition information corresponding to the AID4 in the time slot 2 can be omitted.

In the compression method, the frequency band of the first time-frequency resource block is divided differently in the time period of the first time-frequency resource block and the frequency band of the latter time period, and the allocated site identification information is different. For example, the time-frequency resource block in which the AID3 is located in the time period 1 may satisfy the condition of the first time-frequency resource block. The frequency bands corresponding to the AID3 are divided differently in the time segment 1 and the time segment 2, that is, the frequency band in the time segment 1 is divided into 4 × 26, and the frequency band in the time segment 2 is divided into two 2 × 26. And the frequency band corresponding to the time frequency resource block where the AID3 is located is allocated to the AID3 in the time slot 1, and is allocated to the AID5 and the AID6 in the time slot 2. That is, the frequency band has different frequency band division in time period 1 and time period 2 and different allocated station identification information. According to the comparison of the time slot 1 and the later time slot, the station identification repetition information corresponding to the AID3 in the time slot 1 can be omitted.

If the method one' is adopted, the first compression method is adopted to obtain: the station identification repetition information set is 10100011010100. Based on a second compression method, the method comprises the following steps: the station identification repetition information set is 11011101.

If the method II' is adopted, the first compression method is adopted to obtain the following products: the station identification repetition information set is 110011001010. Based on a second compression method, the method comprises the following steps: the station identification repetition information set is 11011101.

Optionally, as another embodiment, the first indication information, the station identification repetition information, and the time indication information may be located in the high efficiency signaling field B of the physical layer preamble or in a frame body of the medium access control layer.

Fig. 14a is a schematic block diagram of resource indication information of a medium access control layer according to an embodiment of the present invention. As shown in fig. 14a, a MAC frame is shown. The MAC frame includes a control frame, duration/identification information, a reception address, a transmission address, a frame body, and a frame check sequence. The frame body of the MAC frame may include: a set of frequency domain resource allocation indication information, a set of (site identification information + site identification repetition information), time indication information, and site parameter information. Wherein, the time indication information may be located in the public parameter information. The station parameter information includes station parameter information of the first station, station parameter information of the second station, and the like.

Fig. 14b is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention. As shown in fig. 14b, a MAC frame is shown. The MAC frame includes a control frame, duration/identification information, a reception address, a transmission address, a frame body, and a frame check sequence. The frame body of the MAC frame may include: the method comprises the steps of a frequency domain resource allocation indication information set, a site identification repetition information set, a site identification information set, time indication information and site parameter information. Wherein, the time indication information may be located in the public parameter information. The station parameter information includes first station parameter information, second station parameter information, and the like.

Fig. 14c is a schematic block diagram of resource indication information of a medium access control layer according to another embodiment of the present invention. As shown in fig. 14c, a MAC frame is shown. The MAC frame includes a control frame, duration/identification information, a reception address, a transmission address, a frame body, and a frame check sequence. The frame body of the MAC frame may include a (frequency domain resource allocation indication information + station identification repetition information) set, a station identification information set, time indication information, and station parameter information. Wherein, the time indication information may be located in the public parameter information. The station parameter information includes first station parameter information, second station parameter information, and the like.

As shown in fig. 15, the station parameter information of the first station may include station identification information (STA ID), Modulation and Coding Scheme (MCS), Number of Streams (Nsts), Coding type (Coding type), Transmit Beamforming (TxBF), Space Time Block Code (STBC), frequency domain resource allocation indication information, and a slot index. The station parameter information of the second station, the station parameter information of the third station, and the like are similar to the station parameter information of the first station.

Based on the resource block allocation map of 20MHz (fig. 5), the possibility of allocating resource blocks to each station is 15, that is, the position of the frequency resource block allocated to the station (i.e., frequency domain resource allocation indication information) can be indicated by 4-bit index. This example is described below in conjunction with tables 1 and 2. Table 1 is a correspondence table between frequency domain resource allocation indication information and an index. Table 2 is a time period index table.

TABLE 1

Index number	Frequency resource block location
		0000	1 st 1 x 26 resource block
0001	2 nd 1 x 26 resource block
		0010	3 rd 1 x 26 resource block
0011	4 th 1 x 26 resource block
		0100	The 5 th 1 x 26 resource block
0101	6 th 1 x 26 resource block
		0110	7 th 1 x 26 resource block
0111	8 th 1 x 26 resource block
		1000	9 th 1 x 26 resource block
1001	1 st 2 x 26 resource block
		1010	2 nd 2 x 26 resource block
1011	3 rd 2 x 26 resource block
		1100	4 th 2 x 26 resource block
1101	1 st 4 x 26 resource block
		1110	2 nd 4 x 26 resource block

TABLE 2

Index number	Time period sequence number
		00	Time period 1
01	Time period 2
		10	Time period 1 and time period 2

In particular, the embodiment is also described in connection with the time-frequency resource allocation case of fig. 7. The station identification information included in the station parameter information of the station 1 is AID1, the frequency domain resource allocation indication information is "1001", and the time period index is "10". Thus, AID1 corresponds to period 1 and period 2. The station identification information included in the station parameter information of the station 3 is AID3, the frequency domain resource allocation indication information is "0100", and the time period index is "00". The station identification information included in the station parameter information of the station 8 is AID8, the frequency domain resource allocation indication information is "1110", and the time slot index is "01".

It should be understood that the time indication information may include broadcast frame indication information, and the following description will be made in conjunction with the time-frequency resource allocation case shown in fig. 12:

the broadcast frame indication information may be '1010', and the period 1 and the period 3 are used to transmit the broadcast frame. The period 2 and the period 4 are normal data frames. The time period index for this embodiment may be as shown in table 3.

TABLE 3

Index number	Time period sequence number
		00	Time period 2
01	Time period 4
		10	Time period 2 and time period 4

In particular, the embodiment is also described in connection with the time-frequency resource allocation case of fig. 12. The station identification information included in the station parameter information of the station 3 is AID3, the frequency domain resource allocation indication information is "0100", and the time period index is "10". Thus, AID3 corresponds to period 2 and period 4. The station identification information included in the station parameter information of the station 6 is AID6, the frequency domain resource allocation indication information is "1101", and the time slot index is "00". The station identification information included in the station parameter information of the station 7 is AID7, the frequency domain resource allocation indication information is "1110", and the time slot index is "00".

Fig. 16 is a schematic flow chart of a method of resource allocation according to another embodiment of the present invention. The method shown in fig. 16 may be performed by a sink device. The receiving end device may be a station or an access point. The method shown in fig. 16 includes:

1610, a receiving end device receives resource indication information for resource allocation in time domain and frequency domain from a sending end device, where the resource indication information includes time indication information and first indication information for resource allocation in frequency domain, where the time indication information includes the number of time segments for resource allocation in time domain or the time indication information includes the number of time segments for resource allocation in time domain and the length of the time segments;

1620, determining the allocated time frequency resource according to the resource indication information.

It should be understood that the first indication information may be used for resource allocation in the frequency domain. The first indication information may be resource indication information in an existing resource allocation method adopting frequency division multiplexing, that is, may be partial information in the HE-SIGB. The first indication information may include frequency domain resource allocation indication information indicating frequency division, station identification information, and station parameter information.

Specifically, the broadcast frame indication information may indicate which time period is used to transmit a broadcast frame (e.g., a multicast frame). Optionally, as an embodiment, the number of time slots divided by a certain schedule is 4, and the broadcast frame indication information for indicating a multicast frame may be "1010", which indicates that the 1 st time slot and the 3 rd time slot are broadcast frames, and the 2 nd time slot and the 4 th time slot are normal data frames. Optionally, as another embodiment, when a broadcast frame (such as a multicast frame) is transmitted only in the 1 st time period, the broadcast frame indication information may also indicate whether the broadcast frame is transmitted in the first time period by using 1 bit. For example, if the number of slots is 4 and the broadcast frame indication information may be "1", it indicates that the 1 st slot is a broadcast frame (multicast frame), and the other 3 slots are normal data frames.

Optionally, as another embodiment, the first indication information includes station identifier information, where the resource indication information further includes station identifier repetition information, and the station identifier repetition information is used to indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in the adjacent time period.

It should be understood that the station identification information may be identification information of a certain station. The site identification information set in the present application may be understood as a set of site identification information of a plurality of sites. It should also be understood that the station identification repetition information is used to indicate whether the station identification information of a certain resource block is the same as the station identification information of an adjacent resource block of an adjacent time period, and the station identification repetition information set may be a set of repetition information corresponding to each station identification information.

Optionally, as another embodiment, the station identification repetition information is first station identification repetition information corresponding to the first station identification information, and the first station identification repetition information is 1-bit information and is appended after the first station identification information.

Specifically, the resource indication information of this embodiment may be as shown in fig. 8 and described above, and is not described in detail here to avoid repetition.

Specifically, the resource indication information of this embodiment may be as shown in fig. 9 and described above, and is not described in detail here to avoid repetition.

Specifically, the resource indication information of this embodiment can be as shown in fig. 10 and described above, and is not described in detail here to avoid repetition.

Optionally, as another embodiment, the first indication information, the station identification repetition information, and the time indication information are located in the high efficiency signaling field B of the physical layer preamble or in a frame body of the medium access control layer.

Specifically, the resource indication information of this embodiment may be as shown in fig. 14a, fig. 14b and fig. 14c and their descriptions, and in order to avoid repetition, it is not described in detail here.

It should be understood that, in the embodiment of the present invention, the compression operation may also be performed on the station identification repeated information set, and the specific description may be as described in fig. 11 to fig. 13, and in order to avoid repetition, the detailed description is not described here.

Optionally, as another embodiment, the first indication information includes station parameter information, and the station parameter information includes a time period index, where the time period index is used to indicate a time period allocated by the station identification information.

Specifically, the resource indication information of this embodiment may be as shown in fig. 15 and described above, and is not described in detail here to avoid repetition.

Fig. 17 is a schematic block diagram of a transmitting-end device of an embodiment of the present invention. The transmitting device 1700 shown in fig. 17 may implement the method described above with reference to fig. 6 or fig. 11, and in order to avoid repetition, the detailed description is omitted here. The transmitting-end device 1700 includes:

determining unit 1701 resource indication information for resource allocation in time domain and frequency domain, where the resource indication information includes time indication information and first indication information for resource allocation in frequency domain, where the time indication information includes the number of time periods for resource allocation in time domain or the time indication information includes the number of time periods for resource allocation in time domain and the length of the time periods;

the sending unit 1702 sends the resource indication information to the receiving end device, so that the receiving end device determines the allocated time-frequency resource according to the resource indication information.

Optionally, as another embodiment, the station identification repetition information is specifically used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in the previous time period, and the station identification repetition information set does not include the station identification repetition information corresponding to the station identification information allocated to all frequency bands in the first time period.

Optionally, as another embodiment, the station identifier repetition information is specifically used to indicate whether the station identifier information allocated to the first frequency band in the current time period is the same as the station identifier information allocated to the first frequency band in a later time period, and the station identifier repetition information set does not include the station identifier repetition information corresponding to the station identifier information allocated to all frequency bands in the last time period.

Optionally, as another embodiment, the time period for performing resource allocation in the time domain is equal in length, and the time indication information only includes the number of the time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of the time periods.

Fig. 18 is a schematic block diagram of a transmitting-end device of an embodiment of the present invention. The transmitting-end device 1800 shown in fig. 15 may implement the method as described above with reference to fig. 14, and will not be described in detail here to avoid repetition. The transmitting-end apparatus 1800 includes:

a receiving unit 1801 receives, from a sending end device, resource indication information for performing resource allocation in a time domain and a frequency domain, where the resource indication information includes time indication information and first indication information for performing resource allocation in the frequency domain, and the time indication information includes the number of time periods for performing resource allocation in the time domain or the time indication information includes the number of time periods for performing resource allocation in the time domain and a time period length;

a determining unit 1802 determines the allocated time-frequency resources according to the resource indication information.

Fig. 19 is a schematic block diagram of a transmitting-end device according to another embodiment of the present invention. The sender apparatus 1900 of fig. 19 may be configured to implement the steps and methods in the foregoing method embodiments. The transmitting end device 1900 of fig. 19 includes a processor 1901, a memory 1902, and a transmitting circuit 1904. The processor 1901, memory 1902, and transmit circuitry 1904 may be connected by a bus system 119.

Further, the transmitting-end device 1900 may further include an antenna 1905 and the like. The processor 1901 controls the operation of the initiator device 1900. The memory 1902 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1901. The various components of the initiator device 1900 are coupled together by a bus system 1909, where the bus system 1909 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are designated in the figure as the bus system 1909.

The processor 1901 may be an integrated circuit chip having signal processing capabilities. The processor 1901 may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. Processor 1901 reads information in memory 1902, in conjunction with its hardware, sends various components of apparatus 1900.

The method of fig. 6 may be implemented in the transmitting-end device 1900 of fig. 19 and will not be described in detail to avoid repetition.

Specifically, under the control of the processor 1901, the sender device 1900 performs the following operations:

the sending end equipment determines resource indication information used for resource allocation in a time domain and a frequency domain, wherein the resource indication information comprises time indication information and first indication information used for resource allocation in the frequency domain, and the time indication information comprises the number of time periods for resource allocation in the time domain or the time indication information comprises the number of time periods and the length of the time periods for resource allocation in the time domain;

and sending the resource indication information to the receiving end equipment so that the receiving end equipment can determine the allocated time-frequency resources according to the resource indication information.

Fig. 20 is a schematic block diagram of a receiving-end apparatus according to another embodiment of the present invention. The receiving end device 2000 of fig. 20 may be used to implement the steps and methods in the above method embodiments. The reception-side apparatus 2000 of fig. 20 includes a processor 2001, a memory 2002, and a reception circuit 2003. The processor 2001, the memory 2002, and the receiving circuit 2003 are connected by a bus system 2009.

Further, the receiving-end device 2000 may further include an antenna 2005 and the like. The processor 2001 controls the operation of the reception-side apparatus 2000. The memory 2002 may include read-only memory and random-access memory, and provides instructions and data to the processor 2001. A portion of the memory 2002 may also include non-volatile row random access memory (NVRAM). The various components of the sink device 2000 are coupled together by a bus system 2009, where the bus system 2009 includes, in addition to a data bus, a power bus, a control bus, and a status signal bus. For clarity of illustration, however, the various buses are designated in the figure as the bus system 2009.

The processor 2001 may be an integrated circuit chip having signal processing capabilities. The processor 2001 described above may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The processor 2001 reads information in the memory 2002, and controls the respective components of the reception-side device 2000 in conjunction with its hardware.

The method of fig. 16 may be implemented in the receiving-end device 2000 of fig. 20, and is not described in detail to avoid repetition.

Specifically, under the control of the processor 2001, the receiving-end device 2000 performs the following operations:

receiving end equipment receives resource indication information used for resource allocation in a time domain and a frequency domain from sending end equipment, wherein the resource indication information comprises time indication information and first indication information used for resource allocation in the frequency domain, and the time indication information comprises the number of time periods for resource allocation in the time domain or the time indication information comprises the number of time periods for resource allocation in the time domain and the length of the time periods;

and determining the allocated time-frequency resources according to the resource indication information.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. 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. 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.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. 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.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that in the present embodiment, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. 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, a division of a unit is merely a logical division, and an actual implementation may have another division, 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 also be an electric, mechanical or other form of connection.

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 of the present invention.

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. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: the computer-readable medium may include Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), a Compact Disc Read Only Memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to carry or store desired program code in the form of instructions or data structures and which can be accessed by a computer. Furthermore, the method is simple. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, a server, or other remote sources using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Station Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy Disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method of resource allocation, comprising:

the sending end equipment determines resource indication information used for resource allocation of a plurality of sites in a time domain and a frequency domain, wherein the resource indication information comprises time indication information and first indication information used for resource allocation in a frequency domain, the time indication information comprises the number of time periods for resource allocation in the time domain, or the time indication information comprises the number of the time periods for resource allocation in the time domain and the length of the time periods, the first indication information comprises site identification information, the resource indication information further comprises site identification repetition information, and the site identification repetition information is used for indicating whether the site identification information allocated to a first frequency band in the current time period is the same as the site identification information allocated to the first frequency band in an adjacent time period;

and sending the resource indication information to receiving end equipment so that the receiving end equipment can determine the allocated time-frequency resources according to the resource indication information.

2. The method of claim 1,

the station identification repeated information is specifically used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in the previous time period, and the station identification repeated information set does not include the station identification repeated information corresponding to the station identification information allocated to all the frequency bands in the first time period.

3. The method according to claim 1, wherein the station id repetition information is specifically used to indicate whether the station id information allocated to the first frequency band in the current time period is the same as the station id information allocated to the first frequency band in a later time period, and the station id repetition information set does not include the station id repetition information corresponding to the station id information allocated to all frequency bands in the last time period.

4. The method according to claim 2 or 3,

the station identification repeated information set does not include station identification repeated information corresponding to the station identification information allocated to the first time-frequency resource block, the frequency division of the frequency band of the first time-frequency resource block in the time period of the first time-frequency resource block is different from the frequency division of the previous time period and the allocated station identification information is different, or the frequency division of the frequency band corresponding to the first time-frequency resource block in the time period of the first time-frequency resource block is different from the frequency division of the frequency band in the later time period and the allocated station identification information is different.

5. A method according to any one of claims 1 to 3, wherein the station identity repetition information is first station identity repetition information corresponding to first station identity information, and the first station identity repetition information is 1-bit information and is appended after the first station identity information.

6. The method according to any one of claims 1 to 3, wherein the station identity repetition information is second station identity repetition information corresponding to the station identity information allocated in the first time period, and the second station identity repetition information is at least one bit of information.

7. The method according to claim 6, wherein the first indication information includes frequency domain resource allocation indication information for indicating frequency division, and the second station identification repetition information is appended to the frequency domain resource allocation indication information.

8. The method according to any of claims 1-3, wherein the first indication information, the station identity repetition information and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a media access control layer.

9. The method of claim 1, wherein the first indication information comprises station parameter information, and wherein the station parameter information comprises a time period index, and wherein the time period index is used for indicating a time period allocated by station identification information.

10. The method according to any of claims 1-3, wherein the time periods for resource allocation in the time domain are equal in length, and the time indication information only includes the number of time periods for resource allocation in the time domain, wherein the length of each time period is implicitly indicated according to the number of time periods.

11. The method according to any of claims 1-3, wherein the time indication information further comprises broadcast frame indication information indicating a time period for transmitting a broadcast frame.

12. A method of resource allocation, comprising:

receiving end equipment receives resource indication information used for resource allocation of a plurality of sites in a time domain and a frequency domain from sending end equipment, wherein the resource indication information comprises time indication information and first indication information used for resource allocation in a frequency domain, the time indication information comprises the number of time periods for resource allocation in the time domain or the time indication information comprises the number of the time periods for resource allocation in the time domain and the length of the time periods, the first indication information comprises site identification information, the resource indication information further comprises site identification repetition information, and the site identification repetition information is used for indicating whether the site identification information allocated to a first frequency band in the current time period is the same as the site identification information allocated to the first frequency band in an adjacent time period or not;

13. The method according to claim 12, wherein the station id repetition information is first station id repetition information corresponding to first station id information, and the first station id repetition information is 1-bit information and is appended after the first station id information.

14. The method according to claim 12, wherein the station id repetition information is second station id repetition information corresponding to the station id information allocated in the first time period, and the second station id repetition information is at least one bit of information.

15. The method of claim 14, wherein the first indication information comprises frequency domain resource allocation indication information indicating frequency division, and wherein the second station identification repetition information is appended to the frequency domain resource allocation indication information.

16. The method according to any of claims 12-15, wherein the first indication information, the station identity repetition information and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a medium access control layer.

17. The method of claim 12, wherein the first indication information comprises station parameter information, and wherein the station parameter information comprises a time period index, and wherein the time period index is used for indicating a time period allocated by station identification information.

18. The method according to any of claims 12-15, wherein the time periods for resource allocation in the time domain are equal in length, and the time indication information only includes the number of time periods for resource allocation in the time domain, wherein the length of each time period is implicitly indicated according to the number of time periods.

19. The method according to any of claims 12-15, wherein the time indication information further comprises broadcast frame indication information indicating a time period for transmitting a broadcast frame.

20. A transmitting-end device, comprising:

a determining unit, configured to perform resource allocation on a time domain and a frequency domain for a plurality of stations, where the resource indication information includes time indication information and first indication information used to perform resource allocation on a frequency domain, where the time indication information includes a number of time periods for performing resource allocation on the time domain or includes a number of time periods and a length of the time periods for performing resource allocation on the time domain, and the first indication information includes station identifier information, where the resource indication information further includes station identifier repetition information, and the station identifier repetition information is used to indicate whether station identifier information allocated to a first frequency band in a current time period is the same as station identifier information allocated to the first frequency band in an adjacent time period;

and the sending unit is used for sending the resource indication information to receiving end equipment so that the receiving end equipment can determine the allocated time-frequency resource according to the resource indication information.

21. The sending end device of claim 20, wherein the station identification repetition information is specifically used to indicate whether the station identification information allocated to the first frequency band in the current time period is the same as the station identification information allocated to the first frequency band in the previous time period, and the station identification repetition information set does not include the station identification repetition information corresponding to the station identification information allocated to all frequency bands in the first time period.

22. The sending end device of claim 20, wherein the station id repetition information is specifically used to indicate whether the station id information allocated to the first frequency band in the current time period is the same as the station id information allocated to the first frequency band in a later time period, and the station id repetition information set does not include the station id repetition information corresponding to the station id information allocated to all frequency bands in the last time period.

23. The sending end device of claim 21 or 22, wherein the site identity repetition information set does not include site identity repetition information corresponding to the site identity information allocated by a first time-frequency resource block, and frequency division of a frequency band of the first time-frequency resource block in a time period in which the first time-frequency resource block is located and a previous time period is different and allocated site identity information is different, or frequency division of a frequency band corresponding to the first time-frequency resource block in a time period in which the first time-frequency resource block is located and a subsequent time period is different and allocated site identity information is different.

24. The sender apparatus according to any one of claims 20 to 22, wherein the station identification repetition information is first station identification repetition information corresponding to first station identification information, and the first station identification repetition information is 1-bit information and is appended after the first station identification information.

25. The sender apparatus according to any one of claims 20 to 22, wherein the station identification repetition information is second station identification repetition information corresponding to the station identification information allocated in the first time period, and the second station identification repetition information is at least one bit of information.

26. The transmitter apparatus of claim 25, wherein the first indication information includes frequency domain resource allocation indication information for indicating frequency division, and the second station identifier repetition information is appended to the frequency domain resource allocation indication information.

27. The sender device of any one of claims 20 to 22, wherein the first indication information, the station identity repetition information and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a medium access control layer.

28. The sender apparatus of claim 20, wherein the first indication information includes site parameter information, and the site parameter information includes a time period index, and the time period index is used to indicate a time period allocated by the site identification information.

29. The sender apparatus of any one of claims 20 to 22, wherein a time period for performing resource allocation in a time domain is equal in length, and the time indication information only includes a number of time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of time periods.

30. The transmitting end device of any of claims 20-22, wherein the time indication information further includes broadcast frame indication information, and the broadcast frame indication information is used for indicating a time period for transmitting a broadcast frame.

31. A receiving-end device, comprising:

a receiving unit, configured to receive, from a sending end device, resource indication information for resource allocation in a time domain and a frequency domain for a plurality of stations, where the resource indication information includes time indication information and first indication information for resource allocation in a frequency domain, where the time indication information includes a number of time periods for resource allocation in the time domain or includes a number of time periods and a length of the time periods for resource allocation in the time domain, and the first indication information includes station identifier information, where the resource indication information further includes station identifier repetition information, and the station identifier repetition information is used to indicate whether station identifier information allocated to a first frequency band in a current time period is the same as station identifier information allocated to the first frequency band in an adjacent time period;

and the determining unit is used for determining the allocated time-frequency resources according to the resource indication information.

32. The receiving end device of claim 31, wherein the station id repetition information is first station id repetition information corresponding to first station id information, and the first station id repetition information is 1-bit information and is appended after the first station id information.

33. The receiving end device of claim 31, wherein the station id repetition information is second station id repetition information corresponding to the station id information allocated in the first time period, and the second station id repetition information is at least one bit of information.

34. The receiving end device of claim 33, wherein the first indication information includes frequency domain resource allocation indication information for indicating frequency division, and the second station identifier repetition information is appended to the frequency domain resource allocation indication information.

35. The receiver apparatus of any of claims 31-34, wherein the first indication information, the station identity repetition information, and the time indication information are located in a high efficiency signaling field B of a physical layer preamble or in a frame body of a medium access control layer.

36. The receiving end device of claim 31, wherein the first indication information includes station parameter information, and the station parameter information includes a time period index, and the time period index is used to indicate a time period allocated by station identification information.

37. The receiving end device of any one of claims 31 to 34, wherein a time period for performing resource allocation in a time domain is equal in length, and the time indication information only includes a number of time periods for performing resource allocation in the time domain, where the length of each time period is implicitly indicated according to the number of time periods.

38. The receiving-end device according to any of claims 31-34, wherein the time indication information further includes broadcast frame indication information, and the broadcast frame indication information is used to indicate a time period for transmitting a broadcast frame.