CN114006908B

CN114006908B - Method and terminal for allocating point-to-point communication resources

Info

Publication number: CN114006908B
Application number: CN202010669864.8A
Authority: CN
Inventors: 吴昊; 谢芳; 廖杨
Original assignee: Chengdu Jimi Technology Co Ltd
Current assignee: Chengdu Jimi Technology Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2023-03-10
Anticipated expiration: 2040-07-13
Also published as: CN114006908A; WO2022011766A1

Abstract

The application relates to the technical field of point-to-point communication, in particular to a method and a terminal for allocating point-to-point communication resources, wherein the method comprises the steps of receiving a P2P indication message sent by network access equipment; performing P2P transmission with a target terminal according to the parameter 'P2P parameter set' and a P2P indication message sent by the network access equipment; the parameter includes a sub-field "P2P interval" indicating a period of the P2P slot allocation pattern and a sub-field "P2P bitmap" indicating a slot distribution situation for the P2P in one slot allocation period; by allocating and managing the P2P time slots, the time slots are effectively utilized for P2P communication.

Description

Method and terminal for allocating point-to-point communication resources

Technical Field

The present application relates to the field of peer-to-peer communication technologies, and in particular, to a method and a terminal for allocating peer-to-peer communication resources.

Background

802.11be networks, also known as Extreme High Throughput (EHT) networks, are enhanced by a range of system features and a variety of mechanisms to achieve very High Throughput. As the use of Wireless Local Area Networks (WLANs) continues to grow, it becomes increasingly important to provide wireless data services in many environments, such as homes, businesses, and hot spots. In particular, video traffic will continue to be the dominant type of traffic in many WLAN deployments. With the advent of 4k and 8k video (uncompressed rates of 20 Gbps), the throughput requirements for these applications are constantly evolving. New high throughput, low latency applications such as virtual reality or augmented reality, gaming, remote office and cloud computing will proliferate (e.g., latency for real-time gaming is less than 5 milliseconds).

In view of the high throughput and stringent real-time latency requirements of these applications, users expect higher throughput, higher reliability, less latency and jitter, and higher power efficiency when supporting their applications over a WLAN. Users desire improved integration with Time Sensitive Networks (TSNs) to support applications on heterogeneous ethernet and wireless LANs. 802.11be networks aim to ensure the competitiveness of WLANs by further increasing overall throughput and reducing latency, while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz,5GHz and 6GHz bands.

In an 802.11bc network, a point-to-point communication enhancement mode based on AP scheduling is provided, wireless resources are uniformly scheduled by the AP, and packet loss caused by interference during receiving and transmitting of other equipment in the network is avoided while intermediate transmission nodes are reduced and transmission delay is reduced.

The prior art includes a first scheme, as shown in fig. 2, in which an AP sends multicast-like information, called DiL-a, to notify that a peer-to-peer communication device needs to perform a time duration for performing peer-to-peer communication, in this time, a resource is occupied by two peer-to-peer communication devices, and after the end, one of the peer-to-peer communication devices initiates a request for ending peer-to-peer communication to the AP.

The disadvantages of the above scheme are: in order to avoid interference, when devices assigned to peer-to-peer communication transmit and receive data, other devices in the network cannot transmit and receive data, generally, peer-to-peer communication is assigned to consider that the amount of data between two devices is large and is sensitive to delay, such as video transmission, VR, and the like. In general, in the field of point-to-point application, such as video transmission, VR data is actually transmitted in frames, and there is no data to be transmitted for a while, thereby causing resource waste.

The prior art includes a second scheme, as shown in fig. 3, the scheme divides a transmission channel from a frequency domain, and bandwidth of a channel in which a BA Frame, a PHY Preamble, and a Direct link portion are located is allocated to a peer-to-peer communication device at a specified time for use, while other bandwidth may still be provided for other users for use, so that on the basis of the first scheme, a problem of large delay in data transmission of other devices during peer-to-peer communication can be avoided. However, the same method is to divide continuous time intervals to the point-to-point devices, which causes a large waste of resources for the impulse data traffic.

In summary, in the 802.11be network, in order to improve data throughput and reduce data transmission delay, a P2P transmission scheme controlled by a network access point AP is proposed. Before that, the 802.11 network supports direct connection of devices and is also a point-to-point transmission mode, but in the two previous scenarios, the first scenario is that no AP is provided, so that transmission does not interfere with transmission of other devices, and the second scenario is that an AP is provided, and after the two devices establish connection through the AP, the two devices directly transmit.

The invention provides a method and a terminal for allocating point-to-point communication resources on the basis of the background, which can ensure the performance of point-to-point communication transmission and limit the influence of the point-to-point communication transmission on the network performance.

Disclosure of Invention

In view of the above, the present application provides a method and a terminal for peer-to-peer communication resource allocation.

A method of peer-to-peer communication resource allocation, comprising:

receiving a P2P indication message sent by network access equipment;

performing P2P transmission with a target terminal according to the parameter 'P2P parameter set' and a P2P indication message sent by the network access equipment; the parameter includes a sub-field "P2P interval" indicating a period of the P2P slot allocation pattern and a sub-field "P2P bitmap" indicating a slot distribution situation for the P2P in one slot allocation period.

Preferably, the performing P2P transmission with the target terminal according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device includes:

the P2P bitmap is used for indicating time slots used for P2P services and time slots used for all services, and the time slots represent time units;

if the P2P indication message indicates that the P2P service is confirmed to be used;

the first terminal receives a message for confirming the use of the P2P service, and sends data to a target terminal in a time slot for the P2P service according to a P2P bitmap;

the target terminal receives the message confirming the use of the P2P service, and receives data from the first terminal in the time slot for the P2P service according to the P2P bitmap.

if the P2P indication message indicates a P2P service rejection message,

the first terminal receives a P2P indication message indicating that P2P operation is not to be accepted.

the P2P bitmap is used for indicating time slots used for P2P services and time slots used for all services, the time slots represent time units, and the time slots used for the P2P services comprise P2P sending time slots and P2P receiving time slots;

if the P2P indication message indicates that the P2P service message is acknowledged,

the first terminal receives a message for confirming the use of the P2P service, sends data to a target terminal in a P2P sending time slot according to a P2P bitmap, and receives the data from the target terminal in a P2P receiving time slot;

the target terminal receives the message confirming the use of the P2P service, receives data from the first terminal at the P2P sending time slot according to the P2P bitmap, and sends the data to the first terminal at the P2P receiving time slot.

Preferably, the network access device transmits a broadcast message including a parameter "P2P parameter set".

Preferably, the first terminal sends a P2P setup request message to the network access device, and the network access device generates a response message according to the P2P setup request message, where the response message includes a message indicating that the P2P service is confirmed to be used, and the response message includes a parameter "P2P parameter set".

Preferably, the P2P setup request message includes a parameter "P2P parameter set".

Preferably, the P2P setup request message includes parameters "service identifier" and buffer data size, or "service identifier", buffer data size and signal strength of the target terminal, or "service identifier", buffer data size and signal quality of the target terminal.

Preferably, the performing P2P transmission with the target terminal according to the parameter "P2P parameter set" and the response message sent by the network access device includes:

if the target terminal supports the P2P operation, the network access equipment sends a response message containing a P2P operation use confirmation instruction to the first terminal and the target terminal;

and if the target terminal does not support the P2P operation, the network access equipment sends a response message containing an indication of not accepting the use of the P2P operation to the first terminal.

Preferably, the determination that the target terminal supports P2P operation includes:

judging whether the target terminal supports P2P operation or not according to the capability information of the target terminal locally stored by the network access equipment;

or sending a request message to the target terminal through the network access equipment to request to acquire the capability of the target terminal, and judging whether the target terminal supports the P2P operation or not through the capability information fed back by the target terminal.

Preferably, the P2P setup request message includes a parameter P2P Option for indicating a type of the requested P2P operation and a parameter P2P STA for indicating a target terminal requiring connection, the P2P Option includes a "setup" indicating a request to establish a P2P connection or a "release" indicating a request to release a P2P connection, and the P2P STA includes an address or an identity of the target terminal.

Preferably, the network access device comprises at least one parameter set, the parameter "P2P parameter set" comprising MCS parameters for representing modulation and coding strategy indices.

A terminal comprising

A memory for storing a program;

a processor coupled to the memory, wherein the processor is configured to execute the program to cause the terminal to perform the method of peer-to-peer communication resource allocation as described above.

A terminal comprising

A message receiving module, configured to receive a P2P indication message sent by a network access device;

a P2P transmission module, configured to perform P2P transmission with a target terminal according to a parameter "P2P parameter set" and a P2P indication message sent by the network access device; the parameter includes a sub-field "P2P interval" indicating a period of the P2P slot allocation pattern and a sub-field "P2P bitmap" indicating a slot distribution situation for the P2P in one slot allocation period.

The method and the device have the advantages that the time slot period is allocated, the time slot period comprises the time slot for the P2P service and the time slots for all the services, the P2P time slot is set, the data transmission of P2P communication is ensured, meanwhile, the time slot is effectively utilized, and the defect that all the time slots are forbidden in the existing P2P communication is avoided; and meanwhile, judging whether the point-to-point communication is available or not according to the data type and setting the time slot of the point-to-point communication.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic flow chart of the method of example 1 of the present application;

FIG. 2 is a schematic diagram of a first prior art solution of the present application;

FIG. 3 is a schematic diagram of a first prior art solution of the present application;

FIG. 4 is a first diagram illustrating the distribution of timeslots in a timeslot period according to the parameters of the present application;

FIG. 5 is a second diagram illustrating the distribution of timeslots in a timeslot period according to the parameters of the present application;

FIG. 6 is a schematic diagram of the process of examples 2 and 3 of the present application;

fig. 7 is a schematic diagram of the method in example 4 of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Furthermore, it should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the following invention scheme, STA represents a terminal in a wireless local area network, AP represents a network access device in the wireless local area network, and a P2P service identifies a service that a data transmission path between terminals directly transmits between two terminals without passing through the AP.

STA1 and STA2 are two terminals within the coverage of the AP, and in the present invention, STA1 and STA2 communicate using the P2P scheme.

In the P2P mode, the STA that first initiates a request for P2P connection is the initiator, and the target STA that the initiator requests for connection is the peer.

STA3 is a terminal within the coverage of the AP, and uses a communication scheme of normal transmission with the AP in the present invention.

The Slot is the minimum time unit in the wireless local area network, for example, a Slot is set to be 9 microseconds, and then the transmission time is 5 slots, that is, 45 microseconds.

The way that the AP sets the P2P parameter set may be based on pre-evaluated traffic data model assignment, e.g., with video transmission traffic model as the standard for P2P traffic model,

frame rate: 60Hz;

resolution ratio: 3840x2160;

pixel size: 24bits/pixel;

compression ratio: 100, respectively;

then one frame of video data is sent every 16.7ms and the transmission rate is approximately 120Mbps.

Then, according to the MCS corresponding rate table, such as table 1, the transmission time is calculated, and then according to the time value of each slot, the number of slots required for transmitting one frame of data is determined.

TABLE 1 MCS corresponding speed table

Example 1

Referring to fig. 1, a flowchart of a method for allocating peer-to-peer communication resources according to an embodiment of the present application is shown, where a terminal may be a television, a projector, a smart phone, a tablet computer, and the like, and a network access device may be a router, and the like.

The inventor finds that, in the current P2P communication process, all timeslots are occupied, and the communication efficiency is low, and to solve the above problem, the applicant proposes a method for allocating peer-to-peer communication resources, as shown in fig. 1, including the steps of:

receiving a P2P indication message sent by network access equipment;

In the embodiment of the application, the P2P indication message sent by the network access device indicates to confirm to use the P2P service or to refuse to use the P2P service, and when the indication indicates to confirm to use the P2P service, performs P2P transmission with the target terminal according to the parameter "P2P parameter set"; specifically, a first terminal receives a message for confirming the use of the P2P service, and sends data to a target terminal in a time slot for the P2P service according to a P2P bitmap parameter; the target terminal receives the message for confirming the use of the P2P service, and receives data from the first terminal in the time slot for the P2P service according to the P2P bitmap parameter; and when the first terminal and the target terminal finish P2P communication, the time slot is used for all services. If the P2P indication message indicates a message rejecting the P2P service, the first terminal receives the P2P indication message and indicates not to accept the P2P operation.

In a use scene, the first terminal is a projector, the second terminal is a mobile smart phone, the third terminal is a smart television, the network access device is a router, when the projector and the mobile smart phone need P2P communication, the network access device configures time slots into time slots for P2P services and time slots for all services, the projector and the mobile smart phone perform P2P communication in the time slots for the P2P services, and after the P2P communication is finished, the projector, the mobile smart phone and the smart television perform communication in the time slots for all services.

Example 2

Based on embodiment 1, the parameter "P2P parameter set" is from AP broadcast message, as shown in fig. 6, the method includes the steps of:

step 01: STA1, STA2, and STA3 receive Beacon messages broadcasted by the AP, where the messages include a parameter "P2P parameter set" including a sub-field "P2P interval" indicating a period of a P2P timeslot assignment mode and a sub-field "P2P bitmap" indicating a timeslot distribution situation for P2P in one timeslot assignment period, and the settings are as shown in table 2:

TABLE 2 table of parameters "P2P parameter set

The above parameters may include different sets of P2P interval and P2P bitmap parameter values according to different MCS policies, for example, MCS is 0, P2P interval is 10, P2P bitmap is {1,1,1,0,0,0,0,0,0,0}, MCS is 1, P2P interval is 20, P2P bitmap is {1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1,1};

wherein, 1 represents a slot that can be used for P2P service transmission or represents a slot of all services, and 0 represents a slot of all services or represents a slot that can be used for P2P service transmission; P2P slots and Normal slots as in FIG. 4; the slot of the present embodiment includes 0 and 1, and may also adopt 00 and 01, etc., and may also adopt other forms such as letters, etc.

Step 02: STA1 needs to establish P2P connection with STA2 for P2P transmission, STA1 sends P2P setup request message to AP, the message includes parameters:

P2P Option: indicating a type of P2P operation requested; "setup", which means that the P2P connection is requested to be established, "release", which means that the P2P connection is requested to be released, and is set to "setup" here;

P2P STA: the target STA used for indicating the connection is needed and is set as the address or the identification of the STA 2;

optional parameters:

TID: the service identifier is used for identifying the service to which the request for sending the data belongs;

and 03: after receiving the P2P setup request message, the AP reads the content in the message, and determines whether the STA2 supports P2P operation, which may be determined in the following manner:

judging whether the STA2 supports P2P operation or not according to the capability information of the STA2 locally stored by the AP;

or sending a request message to the STA2 through the AP to request to acquire the capability of the STA2, and judging whether the STA2 supports the P2P operation or not through the capability information fed back by the STA 2;

step 04: if STA2 supports P2P operation, the AP sends P2P indication information to STA1 and STA2, wherein the P2P indication information comprises P2P setup confirm information, and the information indicates agreement to use P2P operation;

if STA2 does not support P2P operation, the AP sends a P2P setup request message to STA1, the P2P indication message comprises the P2P setup request message, and the message indicates that STA1 is not approved to use P2P operation;

if more than one parameter set is included in the P2P parameter set broadcast by the AP, MCS parameters need to be included in the P2P setup confirm to indicate which set of parameters STA1 and STA2 use.

Step 05: STA1 receives the message sent by AP, if the P2P setup confirm message is received, that is, the message indicating that the P2P operation is approved is received, data is sent to STA2 in the slot corresponding to the setting of '1' according to the P2P bitmap parameter.

In addition, if the P2P setup confirm message includes the MCS, the corresponding P2P bitmap parameter is first searched according to the MCS, and then the data is sent to the STA2 in the slot corresponding to the slot set to "1" according to the P2P bitmap parameter.

In addition, if the P2P setup request message contains a TID, when the TID contained in the data packet to be transmitted is the TID in the request message, the data is transmitted in the slot set to "1" according to the P2P bitmap parameter.

Step 06: STA2 receives the message sent by AP, if receiving P2P setup confirm message, that is, the message indicating agreement to use P2P operation, then according to P2P bitmap parameter, receiving data from STA1 in slot corresponding to setting "1".

In addition, the STA1 and the STA2 may also send data or receive data in the slot corresponding to the setting of "0" according to the P2P bitmap parameter;

during the P2P operation of STA1 and STA2, the AP does not allocate the slot for P2P in the P2P bitmap, that is, the slot indicated as "1" or "0", to other STAs to transmit data;

step 07: after the data transmission of the STA1 is finished, sending a P2P release request message to the AP and the STA 2;

step 08: after receiving the P2P release request message, the AP allocates the slot for P2P in the P2P bitmap, that is, the slot indicated as "1" or "0", to any STA to transmit data.

By allocating the time slot cycle, including the time slot for the P2P service and the time slots for all the services, and setting the P2P time slot, the data transmission of the P2P communication is ensured, and simultaneously, the time slot is effectively utilized, and the defect that all the time slots are forbidden in the prior P2P communication is avoided.

Example 3

Based on embodiment 1, the parameter "P2P parameter set" comes from the response message generated by the AP, as shown in fig. 6, the method includes the steps of:

step 001: STA1 needs to establish P2P connection with STA2 to perform P2P transmission mode, STA1 sends P2P setup request message to AP, the message includes parameters:

P2P Option: indicating a type of P2P operation requested; "setup" indicates a request to establish a P2P connection, and "release" indicates a request to release the P2P connection. Set here to "setup";

P2P STA: the target STA used for indicating the connection is needed is set as the address or the identification of the STA 2;

optional parameters:

P2P parameter set: same as in example 2;

step 002: after receiving the P2P setup request message, the AP reads the content in the message, and determines whether the STA2 supports P2P operation, which may be determined in the following manner:

step 003: if STA2 supports P2P operation, the AP sends a P2P indication message to STA1 and STA2, where the P2P indication message includes a P2P setup confirm message containing a parameter "P2P parameter set" in the details as shown in table 2:

if STA2 does not support P2P operation, the AP sends a P2P indication message to STA1, wherein the P2P indication message comprises a P2P setup reject message, and the message indicates that STA1 is not agreed to use P2P operation;

if the P2P setup request message received by the AP contains P2P parameter set, judging whether the parameters requested by the STA1 can be accepted according to the capability of the STA2 and the strategy of the AP, if so, containing the P2P parameter set requested by the STA1 in the P2P setup confirm message, if not, determining that the parameters in the P2P parameter set which can be supported are contained in the P2P setup confirm message.

Step 004: STA1 receives the message sent by AP, if P2P setup confirm message is received, namely the message indicating that P2P operation is approved, according to the P2P bitmap parameter, data is sent to STA2 in the slot set as '1'.

In addition, if the request message in step 2 contains a TID, when the TID contained in the data packet to be transmitted is the TID in the request message, the data is sent in the slot corresponding to the setting of "1" according to the P2P bitmap parameter.

Step 005: STA2 receives the message sent by AP, if receiving P2P setup confirm message, that is, the message indicating agreement to use P2P operation, then according to P2P bitmap parameter, receiving the data sent by STA1 at slot set as "1".

In addition, STA1 and STA2 may also send data or receive data in the slot set to "0" or "1" according to the P2P bitmap parameter;

during the P2P operation of STA1 and STA2, the AP does not allocate the slot used for P2P in the P2P bitmap, namely the slot indicated as '1', to other STAs to send data; in other words, only the slot indicated as "0" in the P2P bitmap is allocated to other STAs to transmit data.

Step 006: after the data transmission of the STA1 is finished, a P2P setup release message is sent to the AP and the STA2.

Step 007: after receiving the P2P release request message, the AP allocates the slot used for P2P in the P2P bitmap, that is, the slot indicated as "1", to any STA for transmitting data.

Example 4

Based on embodiment 1, the timeslot for P2P service of this embodiment is further optimized, as shown in fig. 7, the method includes the steps of:

step 0001: STA1, STA2, and STA3 receive the Beacon message broadcasted by the AP, where the message includes a parameter "P2P parameter set" including the sub-field "P2P bitmap" and the sub-field "P2P interval", and the settings are as shown in table 2:

the above parameters may include different sets of P2P interval and P2P bitmap parameter values according to different MCS policies, for example, MCS is 0, P2P interval is 10, and P2P bitmap is {1,1,1,0,0,0,0,0,0,2};

in this embodiment, the P2P bitmap parameter is used to indicate a time slot for a P2P service and time slots of all services, where the time slots represent time units, and as shown in fig. 5, the time slots for the P2P service include a P2P transmission time slot and a P2P reception time slot, that is, a P2P-F slot and a P2P-R slot; for example, 0 indicates a slot of all traffic, i.e., a Normal slot,1 indicates a P2P transmission slot among slots for P2P traffic, and 2 indicates a P2P reception slot among slots for P2P traffic. The slot value may take other numerical values in the form of a numerical value, or take other forms such as a letter.

Step 0002: STA1 needs to establish P2P connection with STA2 to perform P2P transmission mode, STA1 sends P2P setup request message to AP, the message includes parameters:

optional parameters:

step 0003: after receiving the P2P setup request message, the AP reads the content in the message, and confirms whether the STA2 supports P2P operation, which may be confirmed in the following manner:

step 0004: if STA2 supports P2P operation, the AP sends P2P indication information to STA1 and STA2, wherein the P2P indication information comprises P2P setup confirm information, and the information indicates agreement to use P2P operation;

if STA2 does not support P2P operation, the AP sends a P2P indication message to STA1, wherein the P2P indication message comprises a P2P setup request message, and the message indicates that STA1 is not approved to use P2P operation;

if more than one parameter set is included in the P2P parameter set broadcast by the AP, MCS parameters need to be included in the P2P setup confirm to indicate which set of parameters is used by STA1 and STA2.

Step 0005: STA1 receives the message sent by AP, if a P2P setup confirm message is received, namely a message indicating that P2P operation is approved, according to the P2P bitmap parameter, data is sent to STA2 at the slot set to be 1, and data from STA2 is received at the slot set to be 2.

In addition, if the P2P setup confirm message contains MCS, then first look up the corresponding P2P bitmap parameter according to MCS, and then send data at the slot set as "1" and receive data at the slot set as "2" according to the P2P bitmap parameter.

In addition, if the request message in step 2 includes a TID, when the TID included in the data packet to be transmitted is the TID in the request message, according to the P2P bitmap parameter, sending data at the slot corresponding to "1" and receiving data at the slot corresponding to "2".

Step 0006: STA2 receives the message sent by AP, if a P2P setup confirm message is received, namely a message indicating that P2P operation is approved, according to the P2P bitmap parameter, data from STA1 is received at the slot corresponding to the setting of '1', and data is sent to STA1 at the slot corresponding to the setting of '2'.

In addition, the STA1 and the STA2 may also send data in the slot corresponding to the setting of "0" according to the P2P bitmap parameter;

during the P2P operation of STA1 and STA2, the AP does not allocate the slots used for P2P in the P2P bitmap, namely the slots indicated as '1' and '2', to other STAs for transmitting data;

step 0007: and after finishing the data transmission of the STA1, sending a P2P release request message to the AP and the STA2.

Step 0008: after receiving the P2P release request message, the AP allocates slots used for P2P in the P2P bitmap, that is, slots indicated as "1" and "2", to any STA to transmit data.

In a use scene, the first terminal is a projector, the second terminal is a mobile smart phone, the third terminal is a smart television, and the network access device is a router, which is different from embodiment 1 in that the projector and the mobile smart phone of this embodiment both have a function of sending and receiving at the same time during P2P communication, so that the terminal is changed from a message passive side to an active side, for example, a message sent from the smart phone to the projector is changed to the projector, and the message can also be sent to the smart phone, thereby being beneficial to actively collecting data of the projector.

Meanwhile, the parameter "P2P parameter set" in this embodiment may be from a message broadcast by the AP.

Example 5

Based on any of the above embodiments, the P2P setup request message includes parameters "service identifier" and buffer data size, or "service identifier", buffer data size and signal strength of the target terminal, or "service identifier", buffer data size and signal quality of the target terminal. Setting the parameters as judgment parameters for AP to allocate P2P channels, for example, if the cache data volume is large, point-to-point communication can be performed, the data volume is small, and point-to-point communication channel allocation is not recommended; when the service identification is large data volume data, such as video data and the like, point-to-point communication is recommended; for example, the signal strength of the target terminal is weak, which is not favorable for performing point-to-point communication.

Example 6

Based on the same inventive concept as the method for allocating the peer-to-peer communication resource, the embodiment of the present application further provides a terminal. The terminal comprises

A memory for storing a program;

a processor coupled to the memory, wherein the processor is configured to execute the program to enable the terminal to perform the method for peer-to-peer communication resource allocation according to any of the embodiments.

The embodiment of the application also provides a terminal, which comprises

The message receiving module is used for receiving a P2P indication message sent by the network access equipment;

The P2P transmission module comprises a first transmission module and a second transmission module, wherein the first transmission module is used for receiving a message for confirming the use of the P2P service by a first terminal when the indication of the P2P indication message is that the use of the P2P service is confirmed, and sending data to a target terminal in a time slot for the P2P service according to a P2P bitmap parameter; the second transmission module is used for receiving the message for confirming the use of the P2P service by the target terminal when the P2P indication message indicates that the use of the P2P service is confirmed, and receiving the data from the first terminal in the time slot for the P2P service according to the P2P bitmap parameter. Or the first transmission module is used for receiving the message confirming to use the P2P service by the first terminal when the P2P indication message indicates to confirm to use the P2P service, sending data to the target terminal at the P2P sending time slot according to the P2P bitmap parameter, and receiving the data from the target terminal at the P2P receiving time slot; the second transmission module is used for receiving the message for confirming the use of the P2P service by the target terminal when the P2P indication message indicates that the use of the P2P service is confirmed, receiving data from the first terminal at a P2P sending time slot according to the P2P bitmap parameter, and sending the data to the first terminal at the P2P receiving time slot.

In addition, an embodiment of the present application further provides a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed, the method for allocating peer-to-peer communication resources provided in the foregoing method embodiment is implemented.

To sum up, the method for allocating peer-to-peer communication resources provided in this embodiment manages the time slots, allocates the time slot period to be the P2P service time slot and all the service time slots, determines and confirms to use the P2P service through each parameter, performs peer-to-peer communication in the P2P service time slot, and recovers the P2P service time slot after the peer-to-peer communication is finished, thereby avoiding that all the time slots are occupied during peer-to-peer communication in the prior art, which affects channel transmission and network performance.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In addition, the functional modules in each embodiment of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in each embodiment of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), a magnetic disk, or an optical disk.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Moreover, it is noted that, in this document, relational terms such as "first," "second," "third," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. A method of peer-to-peer communication resource allocation, comprising:

receiving a P2P indication message sent by network access equipment;

performing P2P transmission with a target terminal according to the parameter 'P2P parameter set' and a P2P indication message sent by the network access equipment; the parameter comprises a sub-field 'P2P interval' representing the period of the P2P time slot allocation mode and a sub-field 'P2P bit map' representing the time slot distribution situation of the P2P in a time slot allocation period, wherein the P2P bit map is used for indicating the time slots used for the P2P service and the time slots used for all the services, and the time slots represent the time units in the wireless local area network;

the performing P2P transmission with the target terminal according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device includes:

the target terminal receives the message for confirming the use of the P2P service, and receives data from the first terminal in the time slot for the P2P service according to the P2P bitmap;

or, the performing P2P transmission with the target terminal according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device includes:

the time slots used for P2P services comprise P2P sending time slots and P2P receiving time slots;

2. The method of point-to-point communication resource allocation according to claim 1, wherein said network access equipment sends a broadcast message, said broadcast message comprising a parameter "P2Pparameter set".

3. The method of peer-to-peer communication resource allocation according to claim 1, wherein the first terminal sends a P2P setup request message to the network access device, the network access device generates a response message according to the P2P setup request message, the response message includes a message indicating that the use of P2P services is confirmed, and the response message includes a parameter "P2P parameter set".

4. The method of peer-to-peer communications resource allocation according to claim 3, wherein said P2P setup request message includes the parameter "P2P parameter set".

5. The method of claim 3, wherein the P2P setup request message includes parameters "service ID" and buffer data amount, or "service ID", buffer data amount and signal strength of target terminal, or "service ID", buffer data amount and signal quality of target terminal.

6. The method of claim 3, wherein performing P2P transmission with a target terminal according to the parameter "P2P parameter set" and the response message sent by the network access device comprises:

7. The method of claim 6, wherein the determination that the target terminal supports P2P operation comprises:

8. The method of peer-to-peer communication resource allocation according to claim 3, wherein the P2P setup request message includes a parameter P2P Option for indicating the type of P2P operation requested and a parameter P2P STA for indicating the target terminal requiring connection, the P2P Option includes a "setup" indicating that the P2P connection is requested to be established or a "release" indicating that the P2P connection is requested to be released, and the P2P STA includes the address or identity of the target terminal.

9. The method of point-to-point communication resource allocation according to any of claims 1-5, wherein said network access device comprises at least one parameter set, said parameter "P2Pparameter set" comprising MCS parameters for indicating modulation and coding strategy indices.

10. A terminal, comprising

A memory for storing a program;

a processor coupled to the memory, wherein the processor is configured to execute the program to cause the terminal to perform the method of peer-to-peer communication resource allocation according to any of claims 1-9.

11. A terminal, comprising

a P2P transmission module, configured to perform P2P transmission with a target terminal according to a parameter "P2P parameter set" and a P2P indication message sent by the network access device; the parameter comprises a sub-field 'P2P interval' representing the period of the P2P time slot allocation mode and a sub-field 'P2P bit map' representing the time slot distribution situation of the P2P in a time slot allocation period, wherein the P2P bit map is used for indicating the time slots used for the P2P service and the time slots used for all the services, and the time slots represent the time units in the wireless local area network;

or, the performing, according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device, P2P transmission with the target terminal includes:

if the P2P indication message indicates an acknowledgment of the use of the P2P service message,