CN107534604B

CN107534604B - Data processing method and device

Info

Publication number: CN107534604B
Application number: CN201580079744.XA
Authority: CN
Inventors: 乔登宇; 丁志明; 杜振国
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-05-29
Filing date: 2015-05-29
Publication date: 2020-05-08
Anticipated expiration: 2035-05-29
Also published as: WO2016191986A1; CN107534604A

Abstract

The embodiment of the invention provides a data processing method and device, relates to the field of communication, and can effectively reduce the length of resource allocation information and improve the utilization rate of bandwidth. Generating resource allocation information, wherein the resource allocation information comprises a plurality of resource allocation records, and each resource allocation record comprises link type identification information, link identification information and channel resource information; and sending the resource allocation information to the sites so as to facilitate the sites indicated by the site identifiers of the non-direct link sites to perform non-direct communication or the sites indicated by the direct link identifiers to perform direct communication. The data processing method and the data processing device are used for processing data.

Description

Data processing method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a data processing method and apparatus.

Background

Wireless Fidelity (WiFi) is a Wireless local area network technology based on the IEEE802.11 standard of the Institute of Electrical and Electronics Engineers (IEEE), and implements a Computer network composed of terminals such as a Personal Computer (PC), User Equipment (UE) and the like in a Wireless manner. The WiFi device may include an Access Point (AP) and a user Station (Station, STA), and a communication link between the Access Point and the Station is referred to as a non-direct link. In order to improve the efficiency of bandwidth usage, the IEEE802.11 standard specifies a direct link technology, i.e., communication links between stations do not need to pass through an access point, but only one pair of stations of the direct link is allowed to communicate at the same time. For example, as shown in fig. 1, a typical application scenario of a direct link and a non-direct link includes a first station 1, a second station 2, a third station 3, a fourth station 4, a fifth station 5, a sixth station 6, and an access point AP 1. A direct link is arranged between the first site 1 and the second site 2; a direct link is arranged between the third site 3 and the fourth site 4; the fifth station 5 and the sixth station 6 establish a non-direct link with the access point respectively. Although the first station and the second station are connected to the AP1 and controlled by the access point, they communicate through a direct link without forwarding through the access point. While the fifth and sixth stations communicate and must be forwarded through the access point because no direct link is established.

In the future high-density scene, the IEEE intends to establish a new generation of IEEE802.11 supplementary standard, and an OFDMA (Orthogonal Frequency-Division Multiple Access) technology is introduced, and the use of the OFDMA technology can improve the bandwidth resource utilization efficiency. The OFDMA technique divides the transmission bandwidth into orthogonal non-overlapping sets of subcarriers, and allocates different sets of subcarriers to different stations, so that an access point can communicate with multiple stations at the same time. Meanwhile, the OFDMA technology can dynamically allocate the available bandwidth resources to the required sites, thereby realizing the optimal utilization of the system resources. According to the different data transmission directions, the DL-OFDMA (Downlink-OFDMA) technology can be divided into transmitting data from the access point to the station, and the UL-OFDMA (Uplink-OFDMA) technology can be divided into transmitting data from the station to the access point. DL-OFDMA techniques may enable an access point to transmit data to multiple stations simultaneously by occupying non-overlapping sets of subcarriers. Likewise, UL-OFDMA enables multiple stations to transmit data to an access point simultaneously. Since link resources such as subcarriers are dynamically allocated, the access point needs to inform the stations of the allocated resource information in advance before establishing the OFDMA-based non-direct link for communication. The resource allocation information may be carried by a physical Header (PHY Header) and a Media Access Control (MAC) layer.

The new generation of IEEE802.11 supplementary standard that IEEE intends to establish or will enhance the original direct link part to further adapt to the future high-density scene. In the current enhancement scheme of the direct link, the direct link is simultaneously scheduled in a scheduling period of a non-direct link of a DL-OFDMA or a UL-OFDMA, so that the coexistence of the direct link and the non-direct link is realized, and the influence of the direct link on the non-direct link is reduced as much as possible. And the access point is also required to send a direct link resource allocation record in advance, so that the direct link station can perform direct communication according to the allocated resources. The resource allocation object is indicated in the resource allocation information using an identification of the station (e.g., an association identification) and an identification of the direct link. However, in order to reduce the length of the resource allocation information, the identification of the station and the identification of the direct link in the resource allocation information are represented by a truncation method, for example, in the ieee802.11ac standard, the resource allocation information only allocates a field of 8 bits to represent the station identification originally having 16 bits, so that it is easy to make an ambiguity whether a piece of resource allocation information belongs to a non-direct station or a direct communication station, and adding an additional field or information bit to indicate this information tends to increase overhead, contrary to reducing the length of the resource allocation information as much as possible.

Disclosure of Invention

Embodiments of the present invention provide a data processing method and apparatus, which can effectively reduce the length of resource allocation information and improve the utilization rate of bandwidth.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in a first aspect, a data processing method applied to an access point is provided, including:

generating resource allocation information, said resource allocation information comprising a plurality of resource allocation records, each said resource allocation record comprising link type identification information, link identification information and channel resource information,

wherein, when the link type identification information in a resource allocation record takes a first range value, the link identification information in the resource allocation record includes a station identifier of a non-direct-connected link station, a value of the link type identification information in the resource allocation record is used for indicating a data transmission rate when the non-direct-connected link station communicates with the access point, and the channel resource information in the resource allocation record is used for indicating a channel resource required by the communication between the non-direct-connected link station and the access point,

when the link type identification information in one resource allocation record takes a second range value, the link identification information in the resource allocation record contains a direct-connection link identification, the value of the link type identification information in the resource allocation record is used for indicating that the resource allocation record is a resource allocation record for performing direct-connection communication by a direct-connection link site, and the channel resource information in the resource allocation record is used for indicating channel resources required by the direct-connection link site for performing the direct-connection communication;

and sending the resource allocation information to the sites so as to facilitate the sites indicated by the site identifiers of the non-direct link sites to perform non-direct communication or the sites indicated by the direct link identifiers to perform direct communication.

In combination with the first aspect, in a first implementable manner,

sending a direct link identification message to the direct link site, wherein the direct link identification message comprises a direct link identification, and the direct link identification is used for identifying a direct link where the direct link site is located.

With reference to the first aspect or the first implementable manner, in a second implementable manner,

the first range value of the link type identification information is a value space of the data transmission rate of the non-direct link;

and the value space of the second range value of the link type identification information is beyond the first range value.

In a second aspect, a data processing method is provided, which is applied to a direct link site, where the direct link site refers to a site that has already established a direct link, and includes:

receiving resource allocation information sent by an access point, wherein the resource allocation information comprises a plurality of resource allocation records, each resource allocation record comprises link type identification information, link identification information and channel resource information,

and processing the resource allocation information.

With reference to the second aspect, in a first implementable manner, the processing the resource allocation information includes:

searching for a resource allocation record in which link type identification information takes a first range value and the link identification information takes a value as a site identification of the directly connected link site in the resource allocation information;

if the link type identification information is found to take a first range value and the link identification information takes the value of the resource allocation record of the station identification of the directly-connected link station, using the channel resource information in the resource allocation record to perform non-directly-connected communication with the access point;

searching for a resource allocation record of a direct link identifier of a direct link where the direct link site is located by searching for link type identification information in the resource allocation information and taking a second range value as the link identification information;

and if the link type identification information is found to take a second range value and the link identification information is taken as a resource allocation record of a direct link identification of a direct link where the direct link site is located, using the channel resource information in the resource allocation record to perform direct communication with a site at the opposite end of the direct link indicated by the direct link identification of the direct link.

In a third aspect, an access point is provided, including:

a generating unit configured to generate resource allocation information, the resource allocation information including a plurality of resource allocation records, each of the resource allocation records including link type identification information, link identification information, and channel resource information,

a sending unit, configured to send the resource allocation information to a site, so that the site indicated by the site identifier of the non-direct link site performs non-direct communication or the site indicated by the direct link identifier performs direct communication.

With reference to the third aspect, in a first implementable manner,

the sending unit is further configured to send a direct link identification message to the direct link site before the generating unit generates the resource allocation information, where the direct link identification message includes a direct link identifier, and the direct link identifier is used to identify a direct link where the direct link site is located.

With reference to the third aspect or the first implementable manner, in a second implementable manner,

In a fourth aspect, a direct link station is provided, where the direct link station refers to a station that has established a direct link, and the method includes:

a receiving unit, configured to receive resource allocation information sent by an access point, where the resource allocation information includes a plurality of resource allocation records, each resource allocation record includes link type identification information, link identification information, and channel resource information,

a processing unit, configured to process the resource allocation information.

With reference to the fourth aspect, in a first implementable manner, the processing unit is specifically configured to:

In a fifth aspect, an access point is provided, comprising:

a memory for storing program code;

the processor is used for calling the program codes stored in the memory to execute the following method: generating resource allocation information, said resource allocation information comprising a plurality of resource allocation records, each said resource allocation record comprising link type identification information, link identification information and channel resource information,

and the transmitter is used for sending the resource allocation information to the sites so as to facilitate the sites indicated by the site identifiers of the non-direct link sites to perform non-direct communication or the sites indicated by the direct link identifiers to perform direct communication.

With reference to the fifth aspect, in a first implementable manner,

the transmitter is further configured to send a direct link identification message to the direct link site before the processor generates the resource allocation information, where the direct link identification message includes a direct link identifier, and the direct link identifier is used to identify a direct link where the direct link site is located.

With reference to the fifth aspect or the first implementable manner, in a second implementable manner,

A sixth aspect provides a direct link station, where the direct link station refers to a station that has established a direct link, and the method includes:

a receiver for receiving resource allocation information sent by an access point, the resource allocation information comprising a plurality of resource allocation records, each resource allocation record comprising link type identification information, link identification information, and channel resource information,

a memory for storing program code and the resource allocation information received by the receiver;

and the processor is used for calling the program codes stored in the memory to process the resource allocation information.

With reference to the sixth aspect, in a first implementable manner,

the processor is configured to call the program code stored in the memory to process the resource allocation information, specifically:

the processor is used for calling the program code stored in the memory, searching the resource allocation information for a resource allocation record of which the link type identification information takes a first range value and the link identification information takes a value as the site identification of the directly-connected link site;

The embodiment of the invention provides a data processing method and device. The resource allocation record of the direct connection link multiplexes the resource allocation record format of the non-direct connection link on the format, the resource allocation record is indicated to be the resource allocation record of the direct connection link or the resource allocation record of the non-direct connection link by taking the first range value or the second range value of the link type identification information in the resource allocation record, and meanwhile, the first range value of the link type identification information is used for indicating the transmission rate information required by the non-direct connection communication, so that the additional increase of a field as the identification information of the link type is avoided, the length of the resource allocation information is effectively reduced, and the utilization rate of the bandwidth is improved.

Drawings

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

FIG. 1 is a schematic diagram of a network architecture provided in the prior art;

fig. 2 is a schematic diagram illustrating a non-direct link resource allocation record structure provided in the prior art;

FIG. 3 is a flow chart of a data processing method according to an embodiment of the present invention;

FIG. 4 is a flow chart of another data processing method according to an embodiment of the present invention;

FIG. 5 is a flow chart of a further method for data processing according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a direct link resource allocation record structure according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an ap according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a direct link station according to an embodiment of the present invention;

fig. 9 is a schematic diagram of another ap configuration according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another direct link station according to an 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

The prior art provides a schematic diagram of a non-direct link resource allocation record structure, as shown in fig. 2, including a physical layer Preamble 11(PHY Preamble), a site identification field 12(STA ID), an Orthogonal Frequency Division Multiplexing (OFDM) subcarrier resource field 13 and a data transmission rate field 14. The data transmission rate field may be a Modulation and Coding Scheme (MCS) field. Each modulation and coding scheme corresponds to substantially one data transmission rate. In the non-direct link resource allocation record, there may be some fields with reserved value space, for example, a data transmission rate field, where the data transmission rate field in ieee802.11ac is 4 bits, and the 4-bit data transmission rate field may indicate 16 data transmission rates, but actually only 10 data transmission rates are used.

An embodiment of the present invention provides a data processing method applied to an access point, as shown in fig. 3, including:

step 101, the access point generates resource allocation information.

The resource allocation information comprises a plurality of resource allocation records, and each resource allocation record comprises link type identification information, link identification information and channel resource information.

the value space of the second range value is outside the first range value, and may be a value, that is, the value of the link type identification information may be a fixed value. The second range value may also be a value interval, that is, the value of the link type identification information may not be a fixed value at this time, and may be any value in the value interval.

Step 102, sending the resource allocation information to a site, so that the site indicated by the site identifier of the non-direct link site performs non-direct communication or the site indicated by the direct link identifier performs direct communication.

One site can be a direct link site or a non-direct link site, and the direct link site can perform direct communication and/or non-direct communication according to the resource allocation record. In this embodiment scenario, the non-direct link station performs non-direct communication only according to the resource allocation record.

Therefore, the resource allocation record of the direct link multiplexes the resource allocation record format of the non-direct link on the format, the resource allocation record is indicated to be the resource allocation record of the direct link or the resource allocation record of the non-direct link by taking the first range value or the second range value of the link type identification information in the resource allocation record, and meanwhile, the first range value of the link type identification information is used for indicating the transmission rate information required by the non-direct link communication, so that the additional increase of a field as the identification information of the link type is avoided, the length of the resource allocation information is effectively reduced, and the utilization rate of the bandwidth is improved.

An embodiment of the present invention provides a data processing method, which is applied to a direct link site, where the direct link site is a site that has already established a direct link, and the direct link site may also establish a non-direct link with an access point at the same time, as shown in fig. 4, where the method includes:

step 201, receiving resource allocation information sent by an access point.

When the link type identification information in one resource allocation record takes a first range value, the link identification information in the resource allocation record includes a station identifier of a non-direct-connected link station, the value of the link type identification information in the resource allocation record is used for indicating the data transmission rate when the non-direct-connected link station communicates with the access point, and the channel resource information in the resource allocation record is used for indicating the channel resource required by the non-direct-connected link station to establish communication with the access point.

When the link type identification information in one resource allocation record takes a second range value, the link identification information in the resource allocation record contains a link identifier of a direct connection link, the value of the link type identification information in the resource allocation record is used for indicating that the resource allocation record is a resource allocation record for direct connection communication of a direct connection link station, and the channel resource information in the resource allocation record is used for indicating channel resources required by the direct connection link station for the direct connection communication.

The second range of values may be one value.

Step 202, processing the resource allocation information.

It should be noted that after receiving the resource allocation information, searching for a resource allocation record in the resource allocation information, where the link type identification information takes a first range value and the link identification information takes a value of the station identifier of the directly connected link station, and if the resource allocation record in the resource allocation record is found, where the link type identification information takes a first range value and the link identification information takes a value of the station identifier of the directly connected link station, performing non-direct communication with an access point using the channel resource information in the resource allocation record. And after receiving the resource allocation information, searching for a resource allocation record of a link identifier of a direct link where the link type identification information is located and taking a second range value in the resource allocation information, and if the link type identification information is found and the link identifier takes the second range value and the link identifier takes the link identifier of the direct link where the link type identification information is located and the link identifier takes the value of the direct link, performing direct communication with an opposite end site of the direct link indicated by the direct link identifier of the direct link in the resource allocation record.

Particularly, the invention does not pay attention to whether the site searches the resource allocation records of the direct connection link and the non-direct connection link after receiving the resource allocation information, or only searches the resource allocation record of one link type of the resource allocation records of the direct connection link and the non-direct connection link. For example, if the station knows in advance whether the station is scheduled for direct communication or non-direct communication at this time, it may only search for a resource allocation record of one link type. If the site cannot find the resource allocation record related to the site, it is indicated that the received resource allocation information does not relate to the direct link and the non-direct link where the site is located.

An embodiment of the present invention provides a data processing method, which is assumed to be applied to a WiFi scenario shown in fig. 1, where a station and an access point in the WiFi scenario use an OFDMA technique, and as shown in fig. 5, the method includes:

step 301, the access point generates resource allocation information.

In order to initiate both OFDMA-based non-direct and direct communications, an access point generates resource allocation information. The resource allocation information is used to indicate physical layer resources required for the direct connection link to perform direct communication or for the non-direct connection link to perform non-direct communication, and may include a direct connection link resource allocation record and a non-direct connection link resource allocation record.

A non-direct link refers to a communication link between an access point and a station. The non-direct link based on the OFDMA is a communication link for carrying out data transmission with a plurality of stations by an access point by adopting an OFDMA mechanism.

The non-direct link resource allocation record is used for indicating the access point to be the resource allocated by the non-direct link communication of the non-direct link between the non-direct link station and the access point. The non-direct link resource allocation record comprises link identification information, data transmission rate information, channel resource information and the like.

The link identification information includes a site identification of a non-direct link site. And the data transmission rate information is used for indicating the data transmission rate adopted by the communication between the non-direct link station and the access point. The channel resource information is used for indicating channel resources required by the non-direct link station to communicate with the access point.

It should be noted that, because the number of the data transmission rates of the non-direct-connected links supported by the system is usually smaller than the size of the value space of the data transmission rate information in the resource allocation record of the non-direct-connected links, a first range value and a second range value exist in the value space of the data transmission rate information. The first range value refers to a value space used for indicating a data transmission rate in the data transmission rate information, and the second range value may be a remaining value space in the value space of the data transmission rate information, except for the first range value, or may be a subspace of the remaining value space, or may be a value in the remaining value space. For example, a data transmission rate information field in ieee802.11ac is 4 bits and can indicate 16 data transmission rates, and a value space of the data transmission rate information field is 0-15, but an actual system only supports 10 data transmission rates, so that the data transmission rate information field in ieee802.11ac only uses a value space of 0-9 to indicate the data transmission rate, that is, the first range value, and then the second range value may be a value space composed of 10-15, may also be a subspace of the value space composed of 10-15, and may also be any one of 10-15.

The direct link resource allocation record is used for indicating the access point to allocate resources for direct communication between the direct link sites. The direct link resource allocation record comprises link identification information, link type identification information and channel resource information. The direct link resource allocation record multiplexes the non-direct link resource allocation record in format. The direct link refers to a link for direct communication between stations.

Wherein the link identification information includes a direct link identification for identifying a direct link. In fact, the direct link identification information field multiplexes the link identification information field in the non-direct link resource allocation record format, and is collectively referred to as a link identification information field. For the direct link identifier, the station identifier of one station in the direct link may be used as the identifier of the direct link, or may be additionally allocated by the access point in a value space parallel to the station identifier, and the invention does not pay attention to how to take the specific direct link identifier information. Only from the value of the link identifier, it is impossible to distinguish whether the relevant resource allocation record is allocated to a direct connection link or a non-direct connection link, and therefore the direct connection link resource allocation record needs to be added with the link type identification information.

The link type identification information is used for identifying whether the resource allocation record is the direct link resource allocation record or the non-direct link resource allocation record. For example, the link type identification information multiplexes the data transmission rate information field in the non-direct-connection link resource allocation record, and a second range value of the data transmission rate information field is used to indicate that the resource allocation record is a resource allocation record for direct-connection communication of a direct-connection link station.

Since the direct link resource allocation record may reuse the format of the non-direct link resource allocation information, the resource allocation record has a uniform format, and at least includes a link identification information field 21 and a data transmission rate/link type identification information field 22, as shown in fig. 6. And identifying whether the resource allocation record is a direct link resource allocation record or a non-direct link resource allocation record through the data transmission rate/link type identification information field. If the value of the data transmission rate/link type identification information is in the second range value, determining that the corresponding resource allocation information is the direct link resource allocation record; if the value of the data transmission rate/link type identification information is in the first range value, it is determined that the corresponding resource allocation information is the non-direct link resource allocation record, and the data transmission rate/link type identification information is still used for indicating the data transmission rate of the non-direct link.

Step 302, the access point sends the resource allocation information to the station.

And enabling the related sites of the resource allocation information to perform direct communication or non-direct communication according to the resource allocation records.

Step 303, the direct link station searches for the resource allocation information, where the link type identification information takes the first range value and the link identification information takes the resource allocation record of the station identification of the direct link station.

The direct link station refers to a station that has already established a direct link, and the direct link station may also establish a non-direct link with the access point at the same time.

If the first range value is found to be taken as the link type identification information and the value of the link identification information is the resource allocation record of the site identification of the directly connected link site, step 304 is executed.

If the first range value is not found from the link type identification information, and the value of the link identification information is the resource allocation record of the site identification of the directly connected link site, step 305 is executed.

Step 304, the direct link station performs non-direct communication with the access point by using the channel resource information in the resource allocation record found in step 303.

Step 305, the direct link site searches for a resource allocation record in which the link type identification information takes a second range value and the link identification information takes the value of the direct link identification of the direct link where the direct link site is located in the resource allocation information.

If the link type identification information is found to take the second range value and the value of the link identification information is the resource allocation record of the direct link identification of the direct link where the direct link site is located, step 306 is executed.

If the link type identification information is not found to take the second range value and the value of the link identification information is the resource allocation record of the direct link identification of the direct link where the direct link site is located, step 307 is executed.

Step 306, the direct link station performs direct connection communication with the direct link opposite end indicated by the direct link identifier by using the channel resource information in the resource allocation record found in step 305.

Step 307, the direct link station determines that the resource allocation information does not relate to the direct link and the non-direct link where the direct link station is located.

The data processing method of the embodiment of the invention firstly indicates whether the resource allocation record is a direct link resource allocation record or a non-direct link resource allocation record by taking a first range value or a second range value for a data transmission rate/link type identification information field in the resource allocation record, namely the direct link resource allocation record multiplexes a non-direct link resource allocation record format on the format, multiplexes a transmission rate information field which must be contained in the non-direct link resource allocation record into a link type identification information field, uses an unused value space in the transmission rate information field as a value space of the link type identification information field for indicating the resource allocation record as the direct link resource allocation record, thereby avoiding adding a field as link type identification information additionally and effectively reducing the length of the resource allocation information, the utilization rate of the bandwidth is improved.

Specifically, whether the resource allocation information includes a resource allocation record whose value of a link identification information field is the site identification or the direct link identification is checked; if the resource allocation information comprises a resource allocation record of which the value of the link identification information field is the site identification or the direct link identification, checking the value range of the link type identification information in the resource allocation record; and if the value of the link identification information field is not included in the resource allocation information, judging that the resource allocation information does not relate to a direct link and a non-direct link where the site is located.

When the value of the link identification information field in the resource allocation information is the resource allocation record of the site identification, if the value of the link type identification information in the resource allocation record belongs to a first range value, performing non-direct communication with an access point by using channel resource information in the resource allocation record; and if the value of the link type identification information in the resource allocation record belongs to a second range value, performing direct connection communication with the site which is indicated by the site and performs direct connection communication by using the channel resource information in the resource allocation record.

And when the value of the link type identification information in the resource allocation information is a resource allocation record of a direct link identifier, the value of the link type identification information in the resource allocation record belongs to a second range value, and the channel resource information in the resource allocation record is used for performing direct communication with a direct link opposite end indicated by the direct link identifier.

It should be noted that, before generating the resource allocation information, a direct link identification message is sent to the direct link site, where the direct link identification message includes a direct link identifier, and the direct link identifier is used to identify a direct link where the direct link site is located.

An embodiment of the present invention provides an access point 40, as shown in fig. 7, including:

a generating unit 401, configured to generate resource allocation information, where the resource allocation information includes a plurality of resource allocation records, each resource allocation record includes link type identification information, link identification information, and channel resource information,

a sending unit 402, configured to send the resource allocation information to a station, so that the station indicated by the station identifier of the non-direct link station performs non-direct communication or the station indicated by the direct link identifier performs direct communication.

Optionally, the sending unit 402 is further configured to send a direct link identification message to the direct link station before the generating unit 401 generates the resource allocation information, where the direct link identification message includes a direct link identifier, and the direct link identifier is used to identify a direct link where the direct link station is located.

Optionally, the first range value of the link type identification information is a value space of a data transmission rate of a non-direct link;

An embodiment of the present invention provides a direct link site 50, as shown in fig. 8, where the direct link site refers to a site that has already established a direct link, and the direct link site includes:

a receiving unit 501, configured to receive resource allocation information sent by an access point, where the resource allocation information includes a plurality of resource allocation records, each resource allocation record includes link type identification information, link identification information, and channel resource information,

a processing unit 502, configured to process the resource allocation information.

The processing unit 502 is specifically configured to:

An embodiment of the present invention provides an access point 60, as shown in fig. 9, including:

a memory 601 for storing program code;

the processor 602 is configured to call the program code stored in the memory to perform the following method: generating resource allocation information, said resource allocation information comprising a plurality of resource allocation records, each said resource allocation record comprising link type identification information, link identification information and channel resource information,

a transmitter 603, configured to send the resource allocation information to a station, so that the station indicated by the station identifier of the non-direct link station performs non-direct communication or the station indicated by the direct link identifier performs direct communication.

A bus 604 for connecting the memory 601, the processor 602 and the transmitter 603 to complete the communication.

Optionally, the transmitter 603 is further configured to send a direct link identification message to the direct link station before the processor 602 generates the resource allocation information, where the direct link identification message includes a direct link identifier, and the direct link identifier is used to identify a direct link where the direct link station is located.

An embodiment of the present invention provides a direct link station 70, as shown in fig. 10, where the direct link station refers to a station that has already established a direct link, and the direct link station includes:

a receiver 701, configured to receive resource allocation information sent by an access point, where the resource allocation information includes a plurality of resource allocation records, each resource allocation record includes link type identification information, link identification information, and channel resource information,

a memory 702 for storing program codes and the resource allocation information received by the receiver 701;

a processor 703, configured to call the program code stored in the memory to process the resource allocation information.

A bus 704 for connecting the receiver 701, the memory 702 and the processor 703 to complete communication.

The processor 703 is configured to call a program code stored in the memory 702 to process the resource allocation information, specifically:

the processor 703 is configured to call a program code stored in the memory 702, and search, in the resource allocation information, a resource allocation record in which the link type identification information takes a first range value and the link identification information takes a value as a site identification of the directly connected link site;

The memory is not limited to a single physical entity and may be a collection of physically separate parts.

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

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

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

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A data processing method, applied to an access point, includes:

2. The data processing method of claim 1, wherein prior to generating resource allocation information, the method further comprises:

3. The data processing method according to claim 1 or 2,

4. A data processing method is applied to a direct link site, wherein the direct link site refers to a site where a direct link is established, and the method comprises the following steps:

and processing the resource allocation information.

5. The data processing method of claim 4, wherein the processing the resource allocation information comprises:

6. An access point, comprising:

7. The access point of claim 6,

8. The access point of claim 6 or 7,

9. A direct link station, wherein the direct link station refers to a station that has established a direct link, and the method comprises:

a processing unit, configured to process the resource allocation information.

10. The direct link station of claim 9, wherein the processing unit is specifically configured to:

11. An access point, comprising:

a memory for storing program code;

12. The access point of claim 11,

13. The access point of claim 11 or 12,

14. A direct link station, wherein the direct link station refers to a station that has established a direct link, and the method comprises:

15. The direct link station of claim 14,