CN108810980B

CN108810980B - Data transmission method, device and equipment

Info

Publication number: CN108810980B
Application number: CN201710293477.7A
Authority: CN
Inventors: 吴伟民; 王娟; 于健
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-04-28
Filing date: 2017-04-28
Publication date: 2020-10-23
Anticipated expiration: 2037-04-28
Also published as: CN108810980A

Abstract

The invention discloses a data transmission method, which comprises the steps that an awakening receiver on a terminal receives an awakening data packet sent by access equipment, the awakening data packet comprises a codebook set, the codebook set comprises M orthogonal codebooks which are arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to a terminal group, M is an integer larger than 1, the codebooks which correspond to the terminal groups where the terminals are located in the M orthogonal codebooks are determined according to the terminal groups indicated by the M orthogonal codebooks, and transmission resources used by a main radio and the access equipment for data transmission are determined according to the arrangement sequence of the M orthogonal codebooks. In the embodiment of the application, the codebook used for indicating the transmission resource is carried in the awakening data packet, and the terminal can acquire the resource used for data transmission only by analyzing the codebook, so that the triggering frame does not need to be sent again, the network overhead is saved, and the data transmission efficiency is improved.

Description

Data transmission method, device and equipment

Technical Field

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

Background

In the internet of things (IoT), an Access Point (AP) communicates with a Station (STA), and data transmission between the AP and the STA is performed at irregular time. Therefore, the STA needs to be in the listening state all the time to avoid not receiving the data transmitted by the AP.

The STA is always in the listening state, which wastes energy of the STA, and therefore, a sleep mechanism (sleep) is introduced, so that the STA can enter deep sleep when no data is transmitted or received, so as to reduce energy consumption caused by continuous listening. However, when the STA is in deep sleep, the AP cannot communicate with the STA, and data transmission between the STA and the AP can be performed only after the STA wakes up, which causes a certain delay (latency). In order to avoid the high delay caused by the sleep mechanism, the STA usually follows a certain sleep strategy, wakes up from time to check whether there is data to be received, but wakes up from time to time but does not have useful data to be received and transmitted, and consumes more energy compared with long-time sleep, which in turn reduces the sleep efficiency of the STA.

In addition to optimizing sleep strategies, another technical approach to reduce the energy waste caused by device listening is to use wake up radios (WURs for short). The core idea of WUR is that a receiving end device (e.g. STA) includes a conventional main radio (MR for short), and a wake up receiver (WURx for short) is newly added. When the MR enters deep sleep, the WURX with low power consumption starts to work. Other devices (such as an AP) need to communicate with a device (such as an STA) with a WURx, the AP first sends a wake up packet (WUP for short) to the WURx, the WURx correctly receives an MR for waking up the STA after the WUP is sent to the AP, and the AP communicates with the waking MR. When the MR is communicated with the AP, the AP enters the sleep mode, and the WURX starts to listen to whether the WUPs sent to the MR exist or not so as to wake up the MR. The technology adopts the WURX with low power consumption to replace the MR to monitor a channel when the medium is idle, so that the energy waste during equipment monitoring (idle) can be effectively reduced, and high time delay is avoided.

In the current wireless communication system, in order to further improve the transmission efficiency of the system, a multi-user transmission mode, such as a multi-user input/output (MIMO) and Orthogonal Frequency Division Multiple Access (OFDMA) transmission mode, is usually adopted for uplink or downlink, and a process of waking up a plurality of STAs by an AP to perform multi-user transmission is usually: the AP transmits a WUP first, where the WUP may include the ID of one STA, and may perform multiple WUP transmissions, or may include the IDs of multiple STAs. After the WURx of the STA wakes up the MR, it will actively send power save poll (PS-poll for short) to the AP to inform the AP that its MR has woken up. The uplink transmission of multiple users needs to be synchronized, and the position and physical layer parameters of the users during transmission are known in advance. Therefore, the AP needs to send a trigger frame (TF for short) to the STAs, and after receiving the trigger frame, the STAs perform uplink multi-user transmission simultaneously according to resource scheduling information in the trigger frame.

In the multi-user data transmission mode in the prior art, for the transmission of uplink multi-user data, an AP needs to send a resource indication to an STA through a trigger frame for resource notification, and then data transmission can be performed between the AP and the STA.

Disclosure of Invention

In order to reduce network overhead caused by resource indication in a multi-user data transmission process, embodiments of the present invention provide a data transmission method, which can perform resource indication through a codebook in a WUP, and does not need to send resource indication again after an STA sends an energy-saving poll, thereby saving network overhead and improving data transmission efficiency. The embodiment of the application also provides a corresponding device and equipment.

A first aspect of the present application provides a data transmission method, which may be applied to a terminal in an internet of things system, where when the method is applied to the internet of things system, the terminal may be a Station (STA), an access device may be an Access Point (AP), and the terminal includes a wake-up receiver and a primary wireless transmitter/receiver, and the method includes: the method comprises the steps that a wake-up receiver receives a wake-up data packet sent by access equipment, wherein the wake-up data packet comprises a codebook set, the codebook set comprises M orthogonal codebooks which are arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to a terminal group, and M is an integer greater than 1; in practice, the codebook set at this point is equivalent to a subset of the set formed by all codebooks, for example: when N codebooks are set for all terminal groups under the AP, the number of codebooks included in a set formed by all the codebooks is N, where N is greater than M. For example: a total of N codebooks, M1, M2, M3 and M44 codebooks are transmitted in WUP, so that N is 16 and M is 4. The awakening receiver determines a codebook corresponding to the terminal group containing the terminal in the M orthogonal codebooks according to the terminal group indicated by the M orthogonal codebooks; and the awakening receiver determines transmission resources used by the main radio and the access equipment for data transmission according to the arrangement sequence of the M orthogonal codebooks. As can be seen from the first aspect, the codebook used for indicating transmission resources is carried in the wakeup data packet, and the terminal can acquire the resources used for data transmission only by parsing out the codebook, so that the trigger frame does not need to be sent again, thereby saving network overhead and improving data transmission efficiency.

With reference to the first aspect, in a first possible implementation manner, the steps in the first aspect are: the awakening receiver determines transmission resources used by the main radio and the access equipment for data transmission according to the arrangement sequence of the M orthogonal codebooks, and the transmission resources comprise: if the arrangement sequence of the M orthogonal codebooks is a relative sequence, determining a target transmission resource used by the main radio and the access equipment for data transmission according to the relative sequence of the M orthogonal codebooks; the target transmission resource is one of M transmission resources adjacent in number, the ordering of the target transmission resource in the M transmission resources adjacent in number is the same as the ordering of an orthogonal codebook of the terminal in the M orthogonal codebooks, and the transmission resource comprises at least one of a channel resource in a frequency dimension and a resource unit RU in a time dimension. For example: four codebooks of M1, M2, M3 and M4 are transmitted in the WUP, and M1< M2< M3< M4, for the example of determining channel resources, the number of the determined channel can be 1, 2, 3 and 4, wherein M1 corresponds to channel 1, M2 corresponds to channel 2, M3 corresponds to channel 3, and M4 corresponds to channel 4. As can be seen from the first possible implementation manner of the first aspect, at least one of the channel resources in the frequency dimension and the resource units RU in the time dimension for transmitting data is indicated by the relative order of the M orthogonal codebooks, so that the network overhead is saved, and the efficiency of data transmission is improved.

With reference to the first aspect, in a second possible implementation manner, the steps in the first aspect are: the awakening receiver determines transmission resources used by the main radio and the access equipment for data transmission according to the arrangement sequence of the M orthogonal codebooks, and the transmission resources comprise: if the arrangement sequence of the M orthogonal codebooks is an absolute sequence, determining a target transmission resource used by the main radio and the access equipment for data transmission according to the absolute sequence of the M orthogonal codebooks; the target transmission resource is one of M transmission resources with the same number as that of the M orthogonal codebooks, the sequence of the target transmission resource in the M transmission resources with the same number as that of the M orthogonal codebooks is the same as that of the orthogonal codebooks of the terminal, and the transmission resource comprises at least one of channel resources in a frequency dimension and resource units RU in a time dimension. For example: four codebooks of M1, M2, M3 and M4 are transmitted in the WUP, and M1< M2< M3< M4, for the example of determining channel resources, the determined channel numbers can be M1, M2, M3 and M4, wherein M1 corresponds to channel M1, M2 corresponds to channel M2, M3 corresponds to channel M3, and M4 corresponds to channel M4. As can be seen from the second possible implementation manner of the first aspect, at least one of the channel resources in the frequency dimension and the resource units RU in the time dimension for transmitting data is indicated by the absolute order of the M orthogonal codebooks, so that the network overhead is saved, and the efficiency of data transmission is improved.

With reference to the first or second possible implementation manner of the first aspect, in a third possible implementation manner, when the transmission resource includes a channel resource, the wake-up receiver determines that the number of channels between the access device and the terminal is less than M, and determines a time-division interval and a target channel to which the main radio and the access device belong to perform data transmission according to a sorting position of a codebook corresponding to a terminal group where the terminal is located in M orthogonal codebooks. For example: the AP carries 6

codebooks

1,3,5,7,9 and 11 in the orthogonal sequence of WUPs, corresponding to 6 groups of STAs, which should occupy channels 1-6 respectively in relative order, but there are only 4 channels between the AP and the STAs. Thus

group

1,3,5,7 STAs occupy 4 channels of the first data packet first and group 9,11 STAs occupy 2 channels of the second data packet. As can be seen from the third possible implementation manner of the first aspect, when the number of channels is less than the number of orthogonal codebook data M, the indication of channel resources may be implemented in a packet receiving manner, so that it is ensured that the resource indication may be effectively implemented even with a small number of channels.

With reference to the second possible implementation manner of the first aspect, in a fourth possible implementation manner, when the transmission resource includes a resource unit RU, and the downlink data carried in the first RU and sent to the terminal by the access device carries a resource allocation continuous indication, the resource allocation continuous indication is used to indicate whether the downlink data carried in a second RU adjacent to the first RU belongs to the terminal or a terminal group where the terminal is located. As can be seen from the fourth possible implementation manner of the first aspect, when the transmission resource includes an RU, it may be indicated whether data on a next RU belongs to the terminal or the terminal group through the resource allocation continuous indication, so as to avoid acknowledging data one by one, and thus improve efficiency of data transmission.

With reference to the first aspect and any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner, the wake-up data packet further includes an identifier of a terminal that needs to be woken up in each terminal group, and the method further includes: and the awakening receiver awakens the main radio according to the identification of the terminal to which the awakening receiver belongs so that the awakened main radio can carry out data transmission with the access equipment through the transmission resource. As can be seen from the fifth possible implementation manner of the first aspect, the responding terminal is awakened according to the identifier of the terminal, so as to perform data transmission, and thus, data transmission delay can be avoided.

With reference to the first aspect and any one of the first to fourth possible implementation manners of the first aspect, in a sixth possible implementation manner, the wake-up data packet does not include an identifier of a terminal that needs to be woken up in each terminal group, and downlink data sent by the access device to the terminal includes an identifier of a terminal that needs to be woken up in each terminal group, where the method further includes: and the awakening receiver awakens the main radio according to the identifier of the terminal included in the downlink data so that the awakened main radio performs data transmission with the access equipment through the transmission resource. As can be seen from the sixth possible implementation manner of the first aspect, waking up a corresponding terminal in downlink data can reduce energy consumption of the terminal.

With reference to the first aspect and any one of the first to fourth possible implementation manners of the first aspect, in a seventh possible implementation manner, the wake-up data packet further includes an identifier of an access device that transmits the wake-up data packet, so that the wake-up receiver distinguishes wake-up indications of different access devices. As can be seen from the seventh possible implementation manner of the first aspect, through the identification of the AP, the AP from which the wake-up indication originates may be determined, so as to process data of the AP in a targeted manner.

A second aspect of the present application provides a data transmission method, where the method may be applied to an access device in an internet of things system, and when the method is applied to the internet of things system, a terminal may be a Station (STA), the access device may be An (AP), the access device configures an awake data packet for M terminal groups to which terminals that need to receive data belong, the awake data packet includes a codebook set, the codebook set includes M orthogonal codebooks arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to one terminal group, M is an integer greater than 1, and actually, the codebook set at this point is equivalent to a subset of a set formed by all codebooks, for example: when N codebooks are set for all terminal groups under the AP, the number of codebooks included in a set formed by all the codebooks is N, where N is greater than M. For example: a total of N codebooks, M1, M2, M3 and M44 codebooks are transmitted in WUP, so that N is 16 and M is 4. The arrangement sequence of the M orthogonal codebooks is used for a wake-up receiver of the terminal to determine transmission resources used for data transmission with the access equipment; the access equipment sends a wake-up data packet; the access device transmits data with the awakened primary radio on the terminal through the transmission resource. As can be seen from the second aspect, the codebook used for indicating transmission resources is carried in the wakeup data packet, and the terminal can acquire the resources used for data transmission only by parsing out the codebook, so that the trigger frame does not need to be sent again, thereby saving network overhead and improving data transmission efficiency.

With reference to the second aspect, in a first possible implementation manner, if the wake-up receiver determines that the number N of channels between the access device and the terminal is less than M, the access device allocates N channels to N terminals with codebook numbers sequenced at positions before N and N according to an order corresponding to the channel numbers during first time-sharing transmission, and in second time-sharing transmission, from the N +1 th codebook, allocates M-N channels of the N channels to terminals corresponding to M-N remaining codebooks according to an order of channel coding, where M-N is less than N. For example: the AP carries 6

codebooks

group

1,3,5,7 STAs occupy 4 channels of the first data packet first and group 9,11 STAs occupy 2 channels of the second data packet. As can be seen from the first possible implementation manner of the second aspect, when the number of channels is less than the number of orthogonal codebook data M, the indication of channel resources can be implemented in a packet transmission manner, so that it is ensured that the resource indication can be effectively implemented even with a small number of channels.

A third aspect of the present application provides a data transmission method, which may be applied to a terminal in an internet of things system, where the terminal may be a Station (STA) and an access device may be an Access Point (AP) when the method is applied to the internet of things system, and the terminal includes a wake-up receiver and a main radio, and the method includes: the method comprises the steps that a wake-up receiver receives a wake-up data packet sent by access equipment, wherein the wake-up data packet comprises a terminal identification set, the terminal identification set comprises M terminal identifications which are arranged in sequence, each terminal identification in the M terminal identifications corresponds to one terminal, and M is an integer greater than 1; and the awakening receiver determines transmission resources used by the main radio for data transmission with the access equipment according to the arrangement sequence of the M terminal identifiers. As can be seen from the third aspect, the terminal identifier for indicating the transmission resource is carried in the wakeup data packet, and the terminal can know the resource for data transmission only by analyzing the sequence of the terminal identifier, so that the trigger frame does not need to be sent again, thereby saving network overhead and improving data transmission efficiency.

A second aspect of the present application provides a data transmission method, which may be applied to an access device in an internet of things system, where when applied to the internet of things system, a terminal may be a Station (STA), the access device may be An (AP), a wake-up data packet includes a terminal identifier set, the terminal identifier set includes M terminal identifiers arranged in sequence, each terminal identifier in the M terminal identifiers corresponds to a terminal, M is an integer greater than 1, and the arrangement sequence of the M terminal identifiers is used for a wake-up receiver of the terminal to determine a transmission resource used for data transmission with the access device; the access equipment sends a wake-up data packet; the access device transmits data with the awakened primary radio on the terminal through the transmission resource. As can be seen from the fourth aspect, the terminal identifier for indicating the transmission resource is carried in the wakeup data packet, and the terminal can acquire the resource for data transmission only by analyzing the sequence of the terminal identifier, so that the trigger frame does not need to be sent again, thereby saving network overhead and improving data transmission efficiency.

A fifth aspect of the present application provides a wake-up receiver configured to implement the functions of the first aspect or any optional implementation manner of the first aspect and the method provided by the third aspect, where the wake-up receiver is implemented by hardware/software, and the hardware/software includes units corresponding to the functions.

A sixth aspect of the present application provides an access device configured to implement the functions of the methods provided in the second aspect, the first implementation manner of the second aspect, and the fourth aspect, and the functions are implemented by hardware/software, where the hardware/software includes units corresponding to the functions.

Yet another aspect of the present application provides a computer-readable storage medium having stored therein instructions, which when executed on a computer, cause the computer to perform the method of the above-described aspects.

Yet another aspect of the present application provides a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the above-described aspects.

Compared with the prior art that resource notification is carried out by sending a resource indication through a trigger frame for sending downlink multi-user data, and a large network overhead is caused, in the embodiment of the application, the codebook for indicating transmission resources is carried in the awakening data packet, and the terminal can acquire the resources for data transmission only by analyzing the codebook, so that the resource indication is not required to be sent again after the STA sends the energy-saving polling, the network overhead is saved, and the efficiency of data transmission is improved.

Drawings

FIG. 1A is a schematic diagram of one embodiment of a wireless communication system;

fig. 1B is a diagram of an embodiment of a transmitting end communicating with a receiving end in a wireless communication system;

fig. 1C is a schematic diagram of a hardware configuration of the terminal;

fig. 1D is a schematic diagram of a hardware structure of the access device;

FIG. 2 is a schematic diagram of an embodiment of a method for data transmission in an embodiment of the present application;

FIG. 3 is a schematic diagram of a WUP configuration in an embodiment of the present application;

FIG. 4 is a diagram illustrating relative sequential channel assignments using codebooks in an embodiment of the present application;

FIG. 5 is a diagram illustrating absolute sequential channel allocation using codebooks in an embodiment of the present application;

FIG. 6 is another schematic diagram of a WUP configuration in an embodiment of the present application;

fig. 7A is a schematic diagram of an example of carrying a terminal identifier in downlink data in the embodiment of the present application;

fig. 7B is a schematic diagram of an example of carrying terminal identifiers in downlink and uplink data in the embodiment of the present application;

FIG. 8 is a schematic diagram illustrating an embodiment of allocating RU resources in a relative order according to an embodiment of the present application;

FIG. 9 is a schematic diagram of an embodiment of allocating RU resources in absolute order according to an embodiment of the present application;

FIG. 10 is a schematic diagram of an example of resource continuous allocation in the embodiment of the present application;

FIG. 11 is a schematic diagram of relative sequential channel and RU assignments using codebooks in an embodiment of the present application;

FIG. 12 is a diagram illustrating relative sequential channel and RU assignments with terminal identification in an embodiment of the present application;

fig. 13 is a schematic diagram of an embodiment of a wake-up receiver on a terminal in an embodiment of the present application;

fig. 14 is a schematic diagram of an embodiment of an access device in an embodiment of the present application.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. As can be appreciated by those skilled in the art, as technology advances, the technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

The embodiment of the invention provides a data transmission method, which can perform resource indication through a codebook in a Wake-up data packet (WUP) and does not need to send a trigger frame again, thereby saving network overhead and improving data transmission efficiency. The embodiment of the application also provides a corresponding device and equipment. The following are detailed below.

Fig. 1 is a schematic diagram of an embodiment of a wireless communication system.

The wireless communication system comprises an access device and a plurality of terminals, and the access device is in wireless communication connection with the terminals.

The wireless communication system shown in fig. 1A may be an internet of things IoT system, where a downlink transmitting end in the internet of things system is typically an AP and a receiving end in the internet of things system is typically an STA. In the internet of things system, data transmission between the AP and the STA is usually narrowband transmission. Because of the devices such as sensors and meter reading devices, the requirement on the speed is not high, and the device is usually only dozens of kbps. In addition, for the service, the data volume is not very large, usually some meter reading data is uploaded, and usually a data packet is only dozens of bytes. For this kind of low demand on rate, for the IoT STAs, the demand is often longer transmission distance and lower power consumption. And therefore their data is often transmitted using a narrow band, typically 20MHz for WiFi signals at 2.4G and 5GHz, which typically means transmission less than 20MHz, such as 2MHz or 4 MHz.

In an internet of things system, in order to save energy consumption of a terminal and reduce high time delay of data transmission, a low-energy-consumption wake-up receiver WURx is generally installed on the terminal, as shown in fig. 1B, the wake-up receiver is always in an on state to monitor data sent by an access device, and when data sent to a terminal or a terminal group where the wake-up receiver is located is determined in a wake-up data packet sent from the access device, a main radio on the terminal is woken up, so that the main radio and the access device perform data transmission.

In the system shown in fig. 1A and 1B, the hardware configuration of the terminal can be understood with reference to fig. 1C, and as shown in fig. 1C, the terminal includes a processor 110, a main radio 120, a wake-up receiver 130, a memory 140, and a bus 150, and the processor 110, the main radio 120, the wake-up receiver 130, and the memory 140 are communicatively connected by the bus 150. The main radio 120 and the wake-up receiver 130 perform the functions of the corresponding steps in the embodiments of the present application, and implement data transmission with the access device.

In practice, the wake-up receiver may further comprise a transceiver, a memory and a processor, which are communicatively connected via a bus.

The hardware aspects of the access device may be understood with reference to fig. 1D, where as shown in fig. 1D, the access device includes a processor 210, a main radio 220, a memory 230, and a bus 240, and the processor 110, the processor 210, the main radio 220, and the memory 230 are communicatively coupled via the bus 240. The processor 210 and the main radio 220 perform the functions of the corresponding steps in the embodiments of the present application, and implement data transmission with the terminal.

It should be noted that, in the embodiment of the present application, the main radio on the AP and the main radio on the terminal include a transceiver, which can both receive and transmit, and is equivalent to a transceiver.

In the embodiment of the present application, as shown in fig. 2, an embodiment of data transmission between an access device and a terminal includes:

301. the access equipment configures awakening data packets for M terminal groups to which the terminals needing to receive data belong.

The wake-up data packet comprises a codebook set, the codebook set comprises M orthogonal codebooks arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to a terminal group, M is an integer greater than 1, and the arrangement sequence of the M orthogonal codebooks is used for a wake-up receiver of the terminal to determine transmission resources used for data transmission with the access device.

302. And the access equipment sends the awakening data packet.

303. And after receiving the awakening data packet sent by the access equipment, an awakening receiver on the terminal determines that the M orthogonal codebooks contain the codebook corresponding to the terminal group where the terminal is located according to the terminal group indicated by the M orthogonal codebooks.

304. And the awakening receiver on the terminal determines the transmission resources used by the main radio for data transmission with the access equipment according to the arrangement sequence of the M orthogonal codebooks.

305. And the access equipment performs data transmission with the awakened main radio on the terminal through the transmission resource.

Fig. 3 is a schematic diagram of a WUP in an embodiment of the present application.

As shown in fig. 3, the WUP includes Legacy Short Training Field (L-STF), Legacy Long Training Field (L-LTF), and Legacy signaling Field (L-SIG), wherein L-STF, L-LTF, and L-SIG are collectively referred to as Legacy preambles, which are used to ensure backward compatibility so that STAs of previous releases of standards can read the Legacy preamble part. Also included in the WUP structure is a wake-up preamble that carries an orthogonal codebook, such as an orthogonal codebook of Walsh codes of order N, PN sequences, and the like. In this embodiment, a transmission resource occupied by a data frame to be subsequently transmitted to a different STA is implicitly indicated by an order in which the awake preamble carries the orthogonal codebook, where the transmission resource includes at least one of a channel resource in a frequency dimension and a Resource Unit (RU) in a time dimension.

The duration indication in fig. 3 is to read the length in the L-SIG to know the time required for waiting, so as to prevent interference to WUP transmission. Sometimes there is a symbol coded as Binary Phase Shift Keying (BPSK) between L-SIG and wake-up preamble to prevent STAs in previous versions of the standard from mistakenly considering the WUP as a data packet of 802.11n and ignoring the length field in L-SIG, which cannot protect the WUP from transmission. Alternatively, in order to transmit the WUP and 802.11ax data packets in a mixed manner, a preamble of an 802.11ax multi-user format is used before the wakeup preamble. The scheme of the invention does not limit the structure of the field before the wake-up preamble.

The wake-up preamble function includes discovery of WUP, signal synchronization, and reading of signaling information. After the wake preamble is a wake-up payload for carrying some management and control information.

In the embodiment of the present application, orthogonal sequences exist in the part of the wake-up preamble, and one orthogonal sequence is referred to as one codebook. The AP allocates one orthogonal sequence, that is, one codebook to each terminal group, and as shown in fig. 3, there are 16 orthogonal sequences from left to right, so that all STAs can be divided into 16 groups, and each group is allocated 1 codebook. Therefore, the orthogonal sequence can be regarded as a group Identity (ID). Since the sequences are orthogonal, multiple orthogonal sequence codebooks may be simultaneously carried in the portion, while indicating that multiple groups of users need to wake up. For example, there are 2 sets of stations whose orthogonal sequences are codebook 2 and codebook 4 of a 16-set codebook, respectively, as shown by the codebooks enclosed by the boxes in fig. 3. Two sets of orthogonal sequences may be superimposed and transmitted to two sets of STAs simultaneously. The STAs in each group can find the codebook included in the WUP by performing correlation operation locally using different codebooks with the sequence in the WUP, so as to identify the identity of the group in the WUP that needs to be woken, for example: the terminals in the terminal group 2 can recognize that the WUP includes the codebook 2 and the codebook 4.

In addition to the orthogonal sequence serving as the group identifier of the terminal group that needs to wake up, the relative order and absolute order of the codebooks contained in the orthogonal sequence are also used to indicate the transmission resource order of the subsequently transmitted data packets, specifically, the channel order or RU order occupied by each terminal group in the present embodiment. In this embodiment, a channel order is described as an example.

If the arrangement sequence of the M orthogonal codebooks is a relative sequence, determining a target transmission resource used by the main radio for data transmission with the access equipment according to the relative sequence of the M orthogonal codebooks; the target transmission resource is one of M adjacent transmission resources with numbers, the ordering of the target transmission resource in the M adjacent transmission resources with numbers is the same as the ordering of the orthogonal codebook of the terminal in the M orthogonal codebooks, and the transmission resource comprises at least one of a channel resource in a frequency dimension and a resource unit RU in a time dimension.

If the arrangement sequence of the M orthogonal codebooks is an absolute sequence, determining target transmission resources used by the main radio for data transmission with the access equipment according to the absolute sequence of the M orthogonal codebooks; the target transmission resource is one of M transmission resources with the same number as the M orthogonal codebooks, the target transmission resource is ordered in the M transmission resources with the same number as the M orthogonal codebooks in the same order as the orthogonal codebooks of the terminal in the M orthogonal codebooks, and the transmission resource comprises at least one of channel resources in a frequency dimension and resource units RU in a time dimension.

For ease of presentation in the drawings, and also for closer application to communication standards, english acronyms are used in many places in the drawings. The following description is made in conjunction with the english and english abbreviations in fig. 4 to 12.

WUP, chinese full name: a wake-up data packet; english is called as a whole: wake up packet;

CH, Chinese full name: a channel; english is called as a whole: a channel;

DL, Chinese full name: descending; english is called as a whole: a downlink;

UL, Chinese full name: ascending; english is called as a whole: an uplink;

data, Chinese full name: data;

ACK, Chinese full name: confirming; english is called as a whole: an Acknowledgement;

group, terminal Group;

Sub-ID, identification of the terminal;

TF, Chinese full name: triggering a frame; english is called as a whole: trigger frame;

RU, chinese full name: a resource unit; english is called as a whole: resource Unit.

The case of the relative order is described first. Fig. 4 is a diagram illustrating relative sequential channel allocation using a codebook. For example: the whole codebook set has X codebooks, the AP carries the M1, M2, M3 and M4 codebooks of the X codebooks in the orthogonal sequence for transmitting the WUPs, and the X codebooks correspond to the M1, M2, M3 and M4 groups of STAs, wherein M1< M2< M3< M4. Then the order of the channels occupied by each group of STAs in the subsequent data transmission is the relative order of M1, M2, M3, M4. The channel occupied by the M1 th group of STAs is channel 1, the channel occupied by the M2 th group of STAs is channel 2, the channel occupied by the M3 th group of STAs is channel 3, and the channel occupied by the M4 th group of STAs is channel 4. Determining the data channel allocation sequence by using the relative sequence requires that the terminal positively correlates all codebooks, identifies all codebooks M1, M2, M3 and M4 carried by the orthogonal codes, determines the channel allocation sequence by using the relative sequence of all codebooks, and receives data on the corresponding channel after the MR is awakened by the WUR, wherein X is greater than or equal to 4 in the example, and the value of X is usually 16, 64 and 256, and can be set according to the requirement.

The following describes the absolute order case, and fig. 5 is a schematic diagram of channel allocation using the absolute order of the codebook. For example: the whole codebook has X codebooks, the AP carries M1, M2, M3 and M4 group codebooks in the X codebooks in the orthogonal sequence in the transmitted WUPs, and the M1, M2, M3 and M4 group STAs are corresponding, wherein M1< M2< M3< M4. In subsequent data transmission, the sequence of the channels occupied by each group of STAs is the absolute sequence of M1, M2, M3, M4. Then the channel occupied by the M1 th group of STAs is channel M1, the channel occupied by the M2 th group of STAs is channel M2, the channel occupied by the M3 th group of STAs is channel M3, and the channel occupied by the M4 th group of STAs is channel M4, for example: the codebooks M1, M2, M3 and M4 take values of 4, 5, 6 and 7 respectively, and the channels determined in absolute order are channel 4, channel 5, channel 6 and channel 7.

Whether channel resources or RUs are usually numbered, the number of the codebook may be determined by the position of the codebook in the orthogonal sequence, for example, codebook 2 and codebook 4 in fig. 3, and the numbers of the two codebooks may be considered as number 2 and number 4.

The absolute sequence is utilized to determine the data channel distribution sequence, and only the receiving party needs to carry out positive correlation on the codebook of the receiving party, identify whether the orthogonal code carries the codebook of the receiving party, and receive data on the channel corresponding to the codebook of the receiving party after the MR is awakened by the WURX. The codebooks of other terminal groups do not need to be identified, so that the speed of identifying the codebooks is improved.

Whether the relative order or the absolute order is used may be configured in advance, and the relative order is processed in the relative order when the relative order is used, and the absolute order is processed in the absolute order when the absolute order is used. It is also not possible to carry in the WUP, without prior agreement, an identification of the relative order or absolute order by which the terminal can determine whether the access device is setting the relative order or absolute order.

Because the orthogonal sequence in WUP cannot be too long in consideration of overhead, the orthogonal code with the length of 16, 64 or 256 is usually adopted, and therefore, the accuracy can only be achieved by a certain group of STAs, but not by a certain STA. It is therefore possible to further indicate which STA in a certain group is by a Sub-Identifier (Sub-Identifier) in addition to using orthogonal sequences.

In the embodiment of the present application, there are two indication modes for terminals in a terminal group, which are respectively:

the first mode is as follows: the wake-up data packet further includes an identifier of a terminal to be woken up in each terminal group, and the method further includes: and the awakening receiver awakens the main radio according to the identification of the terminal to which the awakening receiver belongs so that the awakened main radio performs data transmission with the access equipment through the transmission resource.

The second way is: the wake-up data packet does not include the identifier of the terminal to be woken up in each terminal group, and the downlink data sent by the access device to the terminal includes the identifier of the terminal to be woken up in each terminal group, the method further includes: and the awakening receiver awakens the main radio according to the identifier of the terminal included in the downlink data so as to enable the awakened main radio to perform data transmission with the access equipment through the transmission resource.

A first way may be to introduce a Sub-ID list of STAs in the WUP, indicating in sequence which STA in the group indicated by the orthogonal sequence is respectively.

As shown in fig. 6, a Sub-ID list is added to the wake-up load of the WUP, indicating for each group of terminals the identity of the terminals to be woken up in the group. As included in the Sub-ID list in fig. 6: Sub-ID1(Group M1), Sub-ID2(Group M2), Sub-ID3(Group M3) and Sub-ID4(Group M4), and Sub-ID1(Group M1) in the list indicates that the terminal in the wake-up terminal Group M1 is identified as the terminal of Sub-ID 1. Sub-ID2(Group M2) indicates that the terminal in the wake-up terminal Group M2 is identified as the terminal of Sub-ID 2. Sub-ID3(Group M3) indicates that the terminal in the wake-up terminal Group M3 is identified as the terminal of Sub-ID 3. Sub-ID4(Group M4) indicates that the terminal in the wake-up terminal Group M4 is identified as the terminal of Sub-ID 4.

The second way may be to wake up all terminals in the WUP after identifying the codebook of the terminal group in the WUP, and then the AP introduces a Sub-ID in the downlink data to indicate which STA in the corresponding group is.

As shown in fig. 7A, if the AP carries the terminal identifier in the downlink data sent to each terminal, and the Sub-ID1 is carried in the downlink data sent to Group M1, it indicates that the downlink data is sent to the terminal with the terminal identifier Sub-ID1 in the terminal Group M1. The downlink data sent to the Group M2 carries Sub-ID2, which indicates that the downlink data is sent to the terminal identified as Sub-ID2 in the terminal Group M2. The downlink data sent to the Group M3 carries Sub-ID3, which indicates that the downlink data is sent to the terminal identified as Sub-ID3 in the terminal Group M3. The downlink data sent to the Group M4 carries Sub-ID4, which indicates that the downlink data is sent to the terminal identified as Sub-ID4 in the terminal Group M4.

As shown in fig. 7B, after the AP notifies each terminal in the terminal group to use the corresponding channel resource for data transmission in the downlink data as described in fig. 7A, the terminal uses the corresponding channel resource when sending uplink data to the AP, and carries the terminal group identifier and the terminal identifier in the uplink data. As shown in fig. 7B, the AP carries the terminal identifier in the downlink data sent to each terminal, where the downlink data may be a trigger frame (TF for short). The downlink data sent to Group M1 carries Sub-ID1, and the terminal in the terminal Group M1 is identified as the terminal of Sub-ID 1. The downlink data sent to the Group M2 carries Sub-ID2, which indicates that the downlink data is sent to the terminal identified as Sub-ID2 in the terminal Group M2. The downlink data sent to the Group M3 carries Sub-ID3, which indicates that the downlink data is sent to the terminal identified as Sub-ID3 in the terminal Group M3. The downlink data sent to the Group M4 carries Sub-ID4, which indicates that the downlink data is sent to the terminal identified as Sub-ID4 in the terminal Group M4. When the terminal sends uplink data to the AP, the terminal with the terminal identification Sub-ID1 in the terminal group M1 sends the uplink data to the AP by using the channel M1, and the uplink data carries two identifications of the terminal group M1 and the terminal Sub-ID 1. Indicating to the AP the source of the uplink data. Similarly, the uplink data sent by other terminals also carry their respective group identifiers and terminal identifiers.

In addition, when the transmission resource includes the channel resource, the wake-up receiver determines that the number of channels between the access device and the terminal is less than M, and then determines a time-sharing interval and a target channel to which the main radio and the access device perform data transmission according to the sorting position of the codebook corresponding to the terminal group where the terminal is located in the M orthogonal codebooks.

That is, for the case where the number of codebooks carried by the WUP is greater than the number of channels, the AP may transmit in a time-sharing manner. Data is transmitted to the corresponding STA in multiple times. If the channel number M determined by the codebook sequence is greater than the total channel number N, the allocation may be performed again according to the channel number M-N in the second transmission. For example, the AP carries 6

codebooks

1,3,5,7,9 and 11 in the orthogonal sequence of WUPs, which correspond to 6 groups of STAs, and should occupy channels 1 to 6 respectively in a relative order, but there are only 4 channels between the AP and the STAs. Thus

group

1,3,5,7 STAs occupy 4 channels of the first data packet first and group 9,11 STAs occupy 2 channels of the second data packet. Of course, if the number of codebooks is larger, the transmission of the 2 time sharing transmission can not be finished, and the transmission can be continued when the time sharing transmission is carried out for the third time.

In addition, for the characteristic that the AP can simultaneously transmit broadband data and the STA can only receive narrowband data, the AP may limit resources within a certain 20MHz when indicating the resource order. For different 20MHz resources, different WUPs are sent to indicate.

The channel allocation of the data to be transmitted between the AP and the terminal is determined according to the relative sequence or the absolute sequence in the WUP codebook, and compared with a method of indicating through a trigger frame, the method saves network overhead. In addition, the STA is provided with long-time sleep and instant channel allocation after awakening, and the power consumption of the STA is also saved.

In addition to indicating the channel allocation order, the codebook order may be used to indicate the resource allocation in the time dimension as a relative order or an absolute order in the WUP codebook, which is similar in principle to the channel allocation.

Fig. 8 is a diagram of an embodiment of allocating RU resources in a relative order in the embodiment of the present application.

As shown in fig. 8, for example: the whole codebook set has X codebooks, the AP carries the M1, M2, M3 and M4 codebooks of the X codebooks in the orthogonal sequence for transmitting the WUPs, and the X codebooks correspond to the M1, M2, M3 and M4 groups of STAs, wherein M1< M2< M3< M4. Then the order of the RUs occupied by each group of STAs in the subsequent data transmission is the relative order of M1, M2, M3, M4. The RU occupied by the M1 th group STA is RU1, the RU occupied by the M2 th group STA is RU2, the RU occupied by the third group STA is RU3, and the RU occupied by the M4 th group STA is RU 4. Determining the RU allocation order by using the relative order requires that the terminal positively correlate all codebooks, identify all codebooks M1, M2, M3, and M4 carried by the orthogonal code, then determine the RU allocation order by using the relative order of all codebooks, receive data on the corresponding channel after the MR is awakened by the WUR, and return the confirmation frame to the AP by the terminal in fig. 8 in a return manner, which can be fed back simultaneously on different channels or in a time-sharing manner in sequence, which is not limited by the present invention.

Fig. 9 is a schematic diagram of an embodiment of allocating RU resources in absolute order in the embodiment of the present application.

As shown in fig. 9, such as: the whole codebook has X codebooks, the AP carries M1, M2, M3 and M4 group codebooks in the X codebooks in the orthogonal sequence in the transmitted WUPs, and the M1, M2, M3 and M4 group STAs are corresponding, wherein M1< M2< M3< M4. In subsequent data transmission, the sequence of RUs occupied by each group of STAs is the absolute sequence of M1, M2, M3, M4. The RU occupied by the STA group M1 is RU M1, the RU occupied by the STA group M2 is RU M2, the RU occupied by the STA group M3 is RU M3, and the RU occupied by the STA group M4 is RU M4. For example: codebooks M1, M2, M3, and M4 take values of 4, 5, 6, and 7, respectively, and then the channels determined in absolute order are RU4, RU5, RU6, and RU 7. In fig. 9, the reply mode of the terminal replying the acknowledgment frame to the AP may be feedback simultaneously on different channels or may be feedback in sequence in a time-sharing manner, which is not limited in the present invention.

For the RU allocation, the indication manner of the terminal in the terminal group can be understood by referring to the foregoing two indication manners, and details are not repeated here.

The advantage of specifying the order of the RUs in the absolute order of the codebooks is that the terminal only needs to identify its own codebook, and the disadvantage is that much resources may be wasted. Therefore, the present embodiment further proposes to carry a resource allocation continuous indication in downlink data transmitted by a certain RU, where the resource allocation continuous indication is used to indicate whether a subsequent RU still belongs to the STA or the group of STAs. If still belonging to the STA, the STA may continue to read the next resource unit.

As shown in fig. 10, if the resource allocation consecutive indication is set to 1, it indicates that the next RU still belongs to the STA; if set to 0, it indicates that the STA can end reading data. In fig. 10, the STAs in group M1 parse the data frame in the M1 RU, if the read resource allocation continuation indicator is 1, then continue to read the M1+1 RU, continue to parse the data frame, if the read resource allocation continuation indicator is 1, continue to read the M1+2 RU, continue to parse the data frame, if the read resource allocation continuation bit is 0, then stop continuing to read the next RU.

The resource allocation continuous indication provided in the embodiment of the application flexibly allocates resources to different groups of STAs, and solves the problem of resource waste caused by the use of a codebook absolute sequence time resource block allocation sequence.

Furthermore, it may be proposed to indicate the order of resources in both time and frequency domain dimensions simultaneously with codebook absolute or relative order based on the above-described simple extension of channel and RU allocation according to absolute or relative order. After the sequence indexes are performed on the time and frequency domain dimensions, the data of the user can be read from the corresponding channel and the corresponding time resource unit according to the resource indexes mapped in sequence.

As shown in fig. 11, taking the relative order as an example, for example: the whole codebook set has X codebooks, the AP carries the M1, M2, M3 and M4 codebooks of the X codebooks in the orthogonal sequence for transmitting the WUPs, and the X codebooks correspond to the M1, M2, M3 and M4 groups of STAs, wherein M1< M2< M3< M4. Then the order of the channels and RUs occupied by each group of STAs in the subsequent data transmission is the relative order of M1, M2, M3, M4. The channel occupied by the STA group M1 is channel 1, the RU occupied is RU1, the channel occupied by the STA group M2 is channel 1, the RU occupied is RU2, the channel occupied by the STA group M3 is channel 2, the RU occupied is RU3, the channel occupied by the STA group M4 is channel 2, and the RU occupied is RU 4.

In the embodiment of the present invention, the transmission resource allocation order is not limited to the above-described order of allocating transmission resources in the codebook, and the transmission resource allocation order may be determined by using the order of the STA IDs in the STA ID list in the WUP.

As shown in fig. 12, STA ID list includes ID1, ID2, ID3, and ID4 in the order of ID1, ID2, ID3 to ID 4. Taking the relative order as an example, in the subsequent data transmission, the order of the channel and RU occupied by each STA is the relative order of ID1, ID2, ID3 to ID 4. Then the channel occupied by the STA identified as ID1 is channel 1, the occupied RU is RU1, the channel occupied by the STA identified as ID1 is channel 1, the occupied RU is RU2, the channel occupied by the STA identified as ID1 is channel 2, the occupied RU is RU3, the channel occupied by the STA identified as ID1 is channel 2, and the occupied RU is RU 4. In fact, the principle is basically similar to the above principle of allocating transmission resources by using a codebook sequence, and can be understood by referring to a plurality of embodiments of the codebook sequence, which is not repeated in this embodiment.

In the above embodiment, the method mainly aims at a scenario where the AP performs downlink multi-user transmission to multiple STAs simultaneously. The invention is also applicable to a scene that the AP wakes up a plurality of STAs and triggers the STAs to perform uplink multi-user transmission, and the sequence of the uplink transmission resources of the multiple STAs after the STA is awakened is determined by the sequence (including at least one of absolute sequence and relative sequence) of the orthogonal sequence codebook.

As shown in fig. 13, the present embodiment also provides a wake-up receiver 40 on a terminal, where the terminal may include a main radio, and the wake-up receiver 40 includes: a receiving unit 401, a first determining unit 402, and a second determining unit 403;

wherein the receiving unit 401 may perform the step of WUP reception;

the first determining unit 402 may perform step 303;

the second determination unit may perform step 304.

As shown in fig. 14, an embodiment of the present application further provides an access device, where the access device includes: a configuration unit 501 and a transceiving unit 502,

the configuration unit 501 is configured to perform step 301, and the transceiving unit 502 is configured to perform steps 302 and 305.

The functions of the above units can be understood by referring to the relevant descriptions corresponding to the parts of fig. 1A to fig. 12, and are not repeated herein.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.

The method and the device for data transmission provided by the embodiment of the present invention are described in detail above, and a specific example is applied in the text to explain the principle and the embodiment of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A method for data transmission, the method being applied to a terminal comprising a wake-up receiver and a primary radio, the method comprising:

the wake-up receiver receives a wake-up data packet sent by access equipment, wherein the wake-up data packet comprises a codebook set, the codebook set comprises M orthogonal codebooks which are arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to a terminal group, and M is an integer greater than 1;

the awakening receiver determines that the M orthogonal codebooks contain codebooks corresponding to the terminal group where the terminal is located according to the terminal group indicated by the M orthogonal codebooks;

and the awakening receiver determines transmission resources used by the main radio for data transmission with the access equipment according to the arrangement sequence of the M orthogonal codebooks, wherein the arrangement sequence of the M orthogonal codebooks is used for indicating the transmission resource sequence for data transmission.

2. The method of claim 1, wherein the determining, by the wake-up receiver, transmission resources used by the master radio for data transmission with the access device according to the permutation order of the M orthogonal codebooks comprises:

if the arrangement sequence of the M orthogonal codebooks is a relative sequence, determining a target transmission resource used by the main radio for data transmission with the access equipment according to the relative sequence of the M orthogonal codebooks;

the target transmission resource is one of M adjacent transmission resources with numbers, the ordering of the target transmission resource in the M adjacent transmission resources with numbers is the same as the ordering of the orthogonal codebook of the terminal in the M orthogonal codebooks, and the transmission resource comprises at least one of a channel resource in a frequency dimension and a resource unit RU in a time dimension.

3. The method of claim 1, wherein the determining, by the wake-up receiver, transmission resources used by the master radio for data transmission with the access device according to the permutation order of the M orthogonal codebooks comprises:

if the arrangement sequence of the M orthogonal codebooks is an absolute sequence, determining target transmission resources used by the main radio for data transmission with the access equipment according to the absolute sequence of the M orthogonal codebooks;

the target transmission resource is one of M transmission resources with the same number as the M orthogonal codebooks, the target transmission resource is ordered in the M transmission resources with the same number as the M orthogonal codebooks in the same order as the orthogonal codebooks of the terminal in the M orthogonal codebooks, and the transmission resource comprises at least one of channel resources in a frequency dimension and resource units RU in a time dimension.

4. The method according to claim 2 or 3, wherein when the transmission resource includes the channel resource, the wake-up receiver determines that the number of channels between the access device and the terminal is less than M, and then determines the time-sharing interval and the target channel to which the main radio and the access device belong for data transmission according to the sorting positions of the codebooks corresponding to the terminal group where the terminal is located in the M orthogonal codebooks.

5. The method of claim 3, wherein when the transmission resource comprises the resource units RU, and the downlink data of the first RU carried by the bearer sent by the access device to the terminal carries the resource allocation continuation indication, the resource allocation continuation indication is used to indicate whether the downlink data carried on the second RU adjacent to the first RU belongs to the terminal or a terminal group where the terminal is located.

6. The method of claim 1, 2, 3 or 5, wherein the wake-up data packet further includes an identifier of a terminal in each terminal group that needs to be woken up, and the method further includes:

and the awakening receiver awakens the main radio according to the identification of the terminal to which the awakening receiver belongs so that the awakened main radio performs data transmission with the access equipment through the transmission resource.

7. The method according to claim 1, 2, 3 or 5, wherein the wake-up data packet does not include an identifier of a terminal that needs to be woken up in each terminal group, and the downlink data sent by the access device to the terminal includes an identifier of a terminal that needs to be woken up in each terminal group, the method further comprising:

and the awakening receiver awakens the main radio according to the identifier of the terminal included in the downlink data so as to enable the awakened main radio to perform data transmission with the access equipment through the transmission resource.

8. The method of claim 1, 2, 3, or 5, wherein the wake-up data packet further comprises an identification of an access device that sent the wake-up data packet, such that the wake-up receiver distinguishes wake-up indications for different access devices.

9. A method for data transmission, characterized in that the method is applied to an access device,

the access equipment configures an awakening data packet for M terminal groups to which terminals needing to receive data belong, wherein the awakening data packet comprises a codebook set, the codebook set comprises M orthogonal codebooks which are arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to one terminal group, M is an integer larger than 1, the arrangement sequence of the M orthogonal codebooks is used for an awakening receiver of the terminal to determine transmission resources used for data transmission with the access equipment, and the arrangement sequence of the M orthogonal codebooks is used for indicating the transmission resource sequence for data transmission;

the access device sends the wake-up data packet;

and the access equipment performs data transmission with the awakened main radio on the terminal through the transmission resource.

10. The method of claim 9,

if the awakening receiver determines that the number N of the channels between the access equipment and the terminal is smaller than M, the access equipment allocates the N channels to N terminals which are positioned at positions before N and N in the code book numbering sequence according to the sequence corresponding to the channel numbers in the first time-sharing transmission, and in the second time-sharing transmission, M-N channels in the N channels are allocated to the terminals corresponding to M-N rest code books according to the sequence of channel coding from the (N + 1) th code book, wherein M-N is smaller than N.

11. A wake-up receiver, characterized in that the wake-up receiver is applied to a terminal, which further comprises a main receiver; the wake-up receiver includes:

a receiving unit, configured to receive a wake-up data packet sent by an access device, where the wake-up data packet includes a codebook set, the codebook set includes M orthogonal codebooks arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to a terminal group, and M is an integer greater than 1;

a first determining unit, configured to determine, according to the terminal group indicated by the M orthogonal codebooks received by the receiving unit, that the M orthogonal codebooks include a codebook corresponding to the terminal group where the terminal is located;

a second determining unit, configured to determine, after the first determining unit determines that the M orthogonal codebooks include a codebook corresponding to a terminal group in which the terminal is located, transmission resources used by the primary radio for data transmission with the access device according to an arrangement order of the M orthogonal codebooks, where the arrangement order of the M orthogonal codebooks is used to indicate a transmission resource order for data transmission.

12. Wake-up receiver according to claim 11,

the second determining unit is specifically configured to:

13. Wake-up receiver according to claim 11,

the second determining unit is specifically configured to:

14. An access device, comprising:

a configuration unit, configured to configure an awake data packet for M terminal groups to which a terminal that needs to receive data belongs, where the awake data packet includes a codebook set, the codebook set includes M orthogonal codebooks arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to one terminal group, M is an integer greater than 1, an arrangement sequence of the M orthogonal codebooks is used by an awake receiver of the terminal to determine transmission resources used for data transmission with the access device, and an arrangement sequence of the M orthogonal codebooks is used to indicate a transmission resource sequence for data transmission;

and the transceiving unit is used for sending the awakening data packet configured by the configuration unit and carrying out data transmission with the awakened main radio on the terminal through the transmission resource.

15. A wake-up receiver, characterized in that the wake-up receiver is applied to a terminal, which further comprises a main receiver; the wake-up receiver includes: a main radio, a processor, and a memory, the memory having stored therein a program for data transmission;

the main radio is used for receiving a wake-up data packet sent by an access device, the wake-up data packet includes a codebook set, the codebook set includes M orthogonal codebooks arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to a terminal group, and M is an integer greater than 1;

the processors are respectively used for executing the following steps:

determining, according to the terminal group indicated by the M orthogonal codebooks, that the M orthogonal codebooks include a codebook corresponding to the terminal group where the terminal is located;

and determining transmission resources used by the master radio for data transmission with the access equipment according to the arrangement sequence of the M orthogonal codebooks, wherein the arrangement sequence of the M orthogonal codebooks is used for indicating the transmission resource sequence for data transmission.

16. An access device, comprising: a main radio, a processor, and a memory, the memory having stored therein a program for data transmission;

the processor is configured to configure an awake data packet for M terminal groups to which a terminal that needs to receive data belongs, where the awake data packet includes a codebook set, the codebook set includes M orthogonal codebooks arranged in sequence, each orthogonal codebook in the M orthogonal codebooks corresponds to one terminal group, M is an integer greater than 1, the arrangement order of the M orthogonal codebooks is used by an awake receiver of the terminal to determine transmission resources used for data transmission with the access device, and the arrangement order of the M orthogonal codebooks is used to indicate the transmission resource order for data transmission;

and the main radio is used for sending the awakening data packet and carrying out data transmission with the awakened main radio on the terminal through the transmission resource.

17. A computer-readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1-8.

18. A computer-readable storage medium having stored thereon instructions which, when run on a computer, cause the computer to perform the method of claim 9 or 10.