WO2022011766A1

WO2022011766A1 - Point-to-point communication resource allocation method, and terminal

Info

Publication number: WO2022011766A1
Application number: PCT/CN2020/108351
Authority: WO
Inventors: 吴昊; 谢芳; 廖杨
Original assignee: 成都极米科技股份有限公司
Priority date: 2020-07-13
Filing date: 2020-08-11
Publication date: 2022-01-20
Also published as: CN114006908A; CN114006908B

Abstract

The present application relates to the technical field of point-to-point communications, and in particular, relates to a point-to-point communication resource allocation method, and a terminal. The method comprises: receiving a P2P indication message sent by a network access device; and performing P2P transmission with a target terminal according to a "P2P parameter set" parameter and the P2P indication message which is sent by the network access device, wherein the parameter includes a "P2P interval" sub-field that represents the period of a P2P time slot allocation mode, and a "P2P bitmap" sub-field that represents a time slot allocation condition for P2P within a time slot allocation period. By means of the allocation and management of P2P time slots, the time slots are efficiently utilized to perform P2P communication.

Description

A method and terminal for point-to-point communication resource allocation

technical field

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

Background technique

802.11be networking, also known as Extremely High Throughput (EHT) networking, is enhanced by a number of system features and mechanisms to achieve extremely high throughput. As the use of wireless local area networks (WLANs) continues to grow, it is increasingly important to provide wireless data services in many environments, such as homes, businesses, and hotspots. In particular, video traffic will continue to be the dominant traffic type in many WLAN deployments. The throughput requirements of these applications are evolving due to the advent of 4k and 8k video (20Gbps uncompressed rate). New high-throughput, low-latency applications such as virtual or augmented reality, gaming, remote offices, and cloud computing will proliferate (for example, real-time gaming with sub-5ms latency).

Given the high throughput and stringent real-time latency requirements of these applications, users expect higher throughput, higher reliability, less latency and jitter, and better power efficiency when supporting their applications over WLAN. Users expect improved integration with Time Sensitive Networking (TSN) to support applications over heterogeneous Ethernet and wireless LANs. 802.11be networks are designed to ensure WLAN competitiveness 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 the 802.11bc network, a point-to-point communication enhancement method based on AP scheduling is proposed. The AP schedules wireless resources uniformly. While reducing the intermediate transmission nodes and reducing the transmission delay, it ensures that the transmission and reception of other devices in the network will not be lost due to interference. .

The prior art includes scheme 1. As shown in Figure 2, this scheme is to send multicast-like information through the AP, called DiL-A, to notify the time period for which point-to-point communication equipment can perform point-to-point communication. Occupied by two peer-to-peer communication devices, after the end, one of the peer-to-peer devices initiates an end point-to-point communication request to the AP.

Disadvantages of the above solutions: In order to avoid interference, other devices in the network will not be able to send and receive data when a device assigned to point-to-point communication performs data transmission and reception. Usually, point-to-point communication is allocated because the amount of data between the two devices is large, and the Delay is more sensitive, such as video transmission, VR, etc. However, when the network coverage is wide, it will cause more data transmission delays in devices, which will bring poor user experience to others. Usually in the field of point-to-point application, such as video transmission, the data of VR is actually transmitted in frames, and data is not sent for a period of time, which also causes waste of resources.

The prior art includes scheme 2, as shown in Figure 3, this scheme divides the transmission channel from the frequency domain, and the channel bandwidth where the BA Frame, PHY Preamble and Direct link parts are located is allocated to the point-to-point communication equipment at the specified time, and Other bandwidths can still be provided for use by other users, so on the basis of the first solution in the prior art, the problem of causing a large delay in data transmission of other devices during point-to-point communication can be avoided. However, it is also divided into continuous time periods for point-to-point devices, which will result in a large waste of resources for pulse-type data services.

To sum up, in the 802.11be network, in order to improve the data throughput and reduce the data transmission delay, the P2P transmission mode controlled by the network access point AP is proposed. Before that, 802.11 network supports direct device connection, which is also a point-to-point transmission method, but in the previous two scenarios, the first is without AP, so that the transmission will not interfere with the transmission of other devices, and the second is with AP , after the two devices establish a connection through the AP, they will transmit directly. In this mode, it will cause interference to the data transmission between other devices within the coverage area of the AP and the AP. Therefore, it is proposed in 802.11be that the AP allocates point-to-point Wireless resources for communication, so as to avoid the impact of point-to-point communication on the performance and throughput of the entire network in scenarios with APs.

The present invention is based on such a background, and proposes a method and a terminal for point-to-point communication resource allocation, which can ensure the performance of point-to-point communication transmission and limit its impact on network performance.

SUMMARY OF THE INVENTION

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

A method for point-to-point communication resource allocation, comprising:

Receive the P2P indication message sent by the network access device;

Carry out P2P transmission with the target terminal according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device; the parameter includes a subfield "P2P interval" representing the period of the P2P time slot allocation mode and a In the slot allocation period, the subfield "P2P bitmap" is used for the time slot distribution of P2P.

Preferably, 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 to indicate the time slot for P2P services and the time slot for all services, and the time slot represents a time unit;

If the P2P indication message indicates that the use of the P2P service is confirmed;

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

If the P2P indication message indicates a message for rejecting the P2P service,

The first terminal receives the P2P indication message, indicating that the P2P operation is not accepted.

The P2P bitmap is used to indicate the time slot for the P2P service and the time slot for all services, the time slot represents the time unit, and the time slot for the P2P service includes the P2P sending time slot and the P2P receiving time slot;

If the P2P indication message indicates that it is a confirmation to use the P2P service message,

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

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

Preferably, the network access device sends a broadcast message, and the broadcast message includes a parameter "P2P parameter set".

Preferably, the first terminal sends a P2P setup reqeust message to the network access device, the network access device generates a response message according to the P2P setup request message, and the response message includes a message indicating confirmation of using the P2P service, the The response message includes the parameter "P2P parameter set".

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

Preferably, the P2P setup request message contains parameters "service identifier" and the amount of buffered data, or "service identifier", the amount of buffered data and the signal strength of the target terminal, or "service identifier", the amount of buffered data and the target terminal's signal strength Signal quality.

Preferably, 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 device sends a response message including an instruction to confirm the use of the P2P operation to the first terminal and the target terminal;

If the target terminal does not support the P2P operation, the network access device sends a response message including an indication of not accepting the use of the P2P operation to the first terminal.

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

Determine whether the target terminal supports the P2P operation according to the capability information of the target terminal stored locally by the network access device;

Or send a request message to the target terminal through the network access device to request to obtain its capability, and judge whether the target terminal supports P2P operation through the capability information fed back by the target terminal.

Preferably, the P2P setup request message includes a parameter P2P Option for indicating a requested P2P operation type and a parameter P2P STA for indicating a target terminal that needs to be connected, and the P2P Option includes a "setup" indicating a request to establish a P2P connection Or "release" indicating a request to release the P2P connection, the P2P STA includes the address or identifier of the target terminal.

Preferably, the network access device includes at least one parameter set, and the parameter "P2P parameter set" includes an MCS parameter used to represent a modulation and coding strategy index.

a terminal including

a memory for storing a program;

A processor, coupled to the memory, wherein the processor is configured to run the program to cause the terminal to perform the method for allocating peer-to-peer communication resources as described above.

a terminal including

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

The P2P transmission module is used to perform P2P transmission with the target terminal according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device; the parameter includes a subfield "P2P interval" representing the period of the P2P time slot allocation mode " and the subfield "P2P bitmap" indicating the distribution of time slots for P2P in a time slot allocation period.

In this application, by allocating time slot cycles, including time slots for P2P services and time slots for all services, P2P time slots are set to ensure data transmission in P2P communication, while effectively utilizing time slots to avoid existing The disadvantage that all time slots are disabled in P2P communication; at the same time, according to the data type to judge whether the point-to-point communication is not, and how to set the time slot of the point-to-point communication.

Description of drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, therefore It should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

1 is a schematic flowchart of the method of Embodiment 1 of the application;

Fig. 2 is the schematic diagram of the prior art scheme one of the application;

Fig. 3 is the schematic diagram of the prior art solution one of the application;

4 is a schematic diagram 1 of the distribution of time slots in the time slot period in the parameters of the application;

5 is a schematic diagram 2 of the distribution of time slots in the time slot period in the parameters of the application;

6 is a schematic diagram of the method in Examples 2 and 3 of the application;

FIG. 7 is a schematic diagram of the method in Example 4 of the present application.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Furthermore, it should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it need not be further defined and defined in subsequent figures. explain.

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

STA1 and STA2 are two terminals within the coverage of the AP, and in the present invention, STA1 and STA2 use the P2P mode to communicate.

In the P2P mode, the STA that first initiates the request for a 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 area of the AP, and in the present invention, the communication mode of normal transmission with the AP is used.

Slot is the smallest time unit in the wireless local area network. For example, if a slot is set to 9 microseconds, the transmission time is 5 slots, which is 45 microseconds.

The way the AP sets the P2P parameter set can be allocated according to the pre-evaluated service data model. For example, the video transmission service model is used as the standard of the P2P service model.

Frame rate: 60Hz;

Resolution: 3840x2160;

Pixel size: 24bits/pixel;

Compression ratio: 100;

Then one frame of video data is sent every 16.7ms, so the transmission rate is about 120Mbps.

Then, according to the MCS corresponding rate table, such as Table 1, calculate the transmission time, and then determine the number of slots required to transmit a frame of data according to the time value of each slot.

Table 1 MCS corresponding rate table

Example 1

Please refer to FIG. 1 , which is a schematic flowchart of a method for applying peer-to-peer communication resource allocation according to an embodiment of the present application.

The inventor has found that in the current P2P communication process, all the time slots will be occupied, and the communication efficiency is low. In order to solve the above problems, the applicant proposes a method for point-to-point communication resource allocation, as shown in Figure 1, including steps:

Receive the P2P indication message sent by the network access device;

In the embodiment of this application, the P2P indication message sent by the network access device indicates to confirm the use of the P2P service or to reject the use of the P2P service, and when the indication is to confirm the use of the P2P service, perform P2P transmission with the target terminal according to the parameter "P2P parameter set"; Therefore, the first terminal receives the message confirming the use of the P2P service, and sends data to the target terminal in the time slot used for the P2P service according to the P2P bitmap parameter; The time slot receives data from the first terminal; when the first terminal and the target terminal end the P2P communication, the time slot is used for all services. If the P2P indication message indicates that the P2P service is rejected, the first terminal receives the P2P indication message, indicating that the P2P operation is not accepted.

In the usage scenario, the first terminal is a projector, the second terminal is a mobile smartphone, the third terminal is a smart TV, and the network access device is a router. When the projector and the mobile smartphone need P2P communication, the network access device The time slot will be configured as a time slot for P2P services and a time slot for all services. The projector and mobile smartphone perform P2P communication in the time slot used for P2P service. After the P2P communication is ended, the projector, mobile smart phone Cell phones and smart TVs communicate in time slots used for all services.

Example 2

Based on Embodiment 1, the parameter "P2P parameter set" comes from the AP broadcast message, as shown in Figure 6, the method includes the steps:

Step 01: STA1, STA2 and STA3 receive the Beacon message broadcast by the AP, the message includes the parameter "P2P parameter set", the parameter includes the subfield "P2P interval" representing the cycle of the P2P time slot allocation mode and the During the allocation period, the subfield "P2P bitmap" used for the time slot distribution of P2P is set as shown in Table 2:

Table 2 Parameters "P2P parameter set" table

The above parameters can be multiple sets of parameter values including different P2P interval and P2P bitmap according to different MCS strategies, 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};

Among them, 1 represents a slot that can be used for sending P2P services or a slot that represents all services, and 0 represents a slot that can be used for sending P2P services or a slot that can be used for sending P2P services; the P2P slot and the Normal slot in Figure 4; the slot in this embodiment includes 0 and 1, 00 and 01, etc., can also be used in other forms such as letters.

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

P2P Option: used to indicate the type of P2P operation requested; "setup", indicating a request to establish a P2P connection, "release", indicating a request to release the P2P connection, here is set to "setup";

P2P STA: used to indicate the target STA that needs to be connected, set to the address or identifier of STA2;

Optional parameters:

TID: service identifier, used to identify the service to which the data requested to be sent belongs;

Step 03: After the AP receives the P2P setup request message, it reads the content of the message and confirms whether STA2 supports P2P operations, which can be confirmed in the following ways:

Determine whether STA2 supports P2P operation according to the capability information of STA2 stored locally by the AP;

Or send a request message to STA2 through the AP, requesting to obtain its capabilities, and determine whether STA2 supports P2P operations through the capability information fed back by STA2;

Step 04: if STA2 supports the P2P operation, the AP sends a P2P indication message to STA1 and STA2, the P2P indication message includes a P2P setup confirm message, and the message indicates that the P2P operation is agreed to be used;

If STA2 does not support P2P operation, the AP sends a P2P setup reject message to STA1, the P2P indication message includes a P2P setup reject message, and the message indicates that STA1 does not agree to use P2P operation;

If the P2P parameter set broadcast by the AP includes more than one parameter set, the MCS parameter needs to be included in the P2P setup confirm to indicate which parameter set STA1 and STA2 use.

Step 05: STA1 receives the message sent by the AP. If it receives the P2P setup confirm message, that is, the message indicating that it agrees to use the P2P operation, according to the P2P bitmap parameter, it is set to "1" and the corresponding slot sends data to STA2.

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

In addition, if the TID is included in the P2P setup request message, when the TID included in the data packet to be transmitted is the TID in the request message, according to the P2P bitmap parameter, it is set to "1" to send data in the corresponding slot.

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

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

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

Step 07: After STA1 data transmission is completed, send P2P release request message to AP and STA2;

Step 08: After the AP receives the P2P release request message, it re-allocates the slot used for P2P in the P2P bitmap, that is, the slot indicated as "1" or "0" to any STA to send data.

By allocating time slot cycles, including time slots for P2P services and time slots for all services, P2P time slots are set to ensure data transmission in P2P communication, while effectively utilizing time slots to avoid existing P2P communication The disadvantage is that all time slots are disabled.

Example 3

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

Step 001: STA1 needs to establish a P2P connection with STA2 for P2P transmission mode, STA1 sends a P2P setup request message to the AP, and the message contains parameters:

P2P Option: used to indicate the type of P2P operation requested; "setup", which means a request to establish a P2P connection, and "release", which means a request to release the P2P connection. This is set to "setup";

Optional parameters:

P2P parameter set: same as in Example 2;

Step 002: After the AP receives the P2P setup request message, it reads the content of the message and confirms whether STA2 supports P2P operation, which can be confirmed in the following ways:

Step 003: If STA2 supports the P2P operation, the AP sends a P2P indication message to STA1 and STA2, the P2P indication message includes a P2P setup confirm message, and the message includes a parameter "P2P parameter set", the details of which are shown in Table 2:

If STA2 does not support P2P operation, the AP sends a P2P indication message to STA1, the P2P indication message includes a P2P setup reject message, and the message indicates that STA1 does not agree to use P2P operation;

If the P2P setup request message received by the AP contains the P2P parameter set, it will judge whether it can accept the parameters requested by STA1 according to the capabilities of STA2 and the policy of the AP. If yes, the P2P setup confirm message will include the P2P parameter set requested by STA1. , if not, determine the parameters in the P2P parameter set that can be supported, which are included in the P2P setup confirm message.

Step 004: STA1 receives the message sent by the AP, and if it receives the P2P setup confirm message, that is, the message indicating the agreement to use the P2P operation, according to the P2P bitmap parameter, it is set to "1" corresponding to the slot to send data to STA2.

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

Step 005: STA2 receives the message sent by the AP, and if it receives the P2P setup confirm message, that is, the message indicating that it agrees to use the P2P operation, then according to the P2P bitmap parameter, the data sent by STA1 is received in the corresponding slot set to "1".

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

During the P2P operation between STA1 and STA2, the AP does not assign the slot used for P2P in the P2P bitmap, that is, the slot indicated as "1" to other STAs to send data; in other words, only indicates "0" in the P2P bitmap The slot is allocated to other STAs to send data.

Step 006: After the data transmission of STA1 is completed, it sends a P2P setup release message to the AP and STA2.

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

Example 4

Based on Embodiment 1, the time slot used for the P2P service in this embodiment is further optimized. As shown in FIG. 7 , the method includes the steps:

Step 0001: STA1, STA2 and STA3 receive the Beacon message broadcast by the AP, the message includes the parameter "P2P parameter set", the parameter includes the subfield "P2P bitmap" and the subfield "P2P interval", set as shown in Table 2:

The above parameters can be multiple sets of parameter values including different P2P interval and P2P bitmap according to different MCS strategies, for example, MCS is 0, P2P interval is 10, P2P bitmap is {1,1,1,0,0,0,0, 0,0,2};

In this embodiment, the P2P bitmap parameter is used to indicate the time slot for the P2P service and the time slot for all services, and the time slot represents the time unit. As shown in FIG. 5 , the time slot for the P2P service includes the time slot for P2P transmission. Slot and P2P receiving time slot, namely P2P-F slot and P2P-R slot; for example, 0 means the slot of all services, namely Normal slot, 1 means the P2P sending time slot in the time slot for P2P service, and 2 means it is used for P2P service The P2P receive slot in the slot. The slot value can also take other numerical values in the form of numerical values, or take other forms such as letters.

Step 0002: STA1 needs to establish a P2P connection with STA2 for P2P transmission mode, STA1 sends a P2P setup request message to the AP, and the message contains parameters:

Optional parameters:

Step 0003: After the AP receives the P2P setup request message, it reads the content of the message to confirm whether STA2 supports the P2P operation, which can be confirmed in the following ways:

Step 0004: if STA2 supports the P2P operation, the AP sends a P2P indication message to STA1 and STA2, the P2P indication message includes a P2P setup confirm message, and the message indicates that the P2P operation is agreed;

Step 0005: STA1 receives the message sent by the AP, if it receives the P2P setup confirm message, that is, the message indicating that the P2P operation is approved, then according to the P2P bitmap parameter, set it to "1" and send data to the corresponding slot to STA2, and set it to The slot corresponding to "2" receives data from STA2.

In addition, if the MCS is included in the P2P setup confirm message, the corresponding P2P bitmap parameters are firstly searched according to the MCS, and then according to the P2P bitmap parameters, data is sent in the corresponding slot set to "1", and data is received in the corresponding slot set to "2" .

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, according to the P2P bitmap parameter, set to "1" to send data in the corresponding slot, and set it to "1" to send data in the corresponding slot. Receive data for the slot corresponding to "2".

Step 0006: STA2 receives the message sent by the AP, and if it receives the P2P setup confirm message, that is, the message indicating the agreement to use the P2P operation, then, according to the P2P bitmap parameter, it is set to "1" in the corresponding slot to receive the data from STA1, Send data to STA1 in the corresponding slot set to "2".

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

During the P2P operation between STA1 and STA2, the AP does not allocate the slots used for P2P in the P2P bitmap, that is, the slots indicated as "1" and "2" to other STAs to send data;

Step 0007: After the data transmission of STA1 is completed, it sends a P2P release request message to the AP and STA2.

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

In the usage scenario, the first terminal is a projector, the second terminal is a mobile smart phone, the third terminal is a smart TV, and the network access device is a router. Smart phones have simultaneous sending and receiving functions during P2P communication, which makes the terminal change from the passive side of the message to the active side. For example, from the smartphone to the projector, the projector can also send the message to the smartphone, which is conducive to active acquisition. Projector data.

Meanwhile, the parameter "P2P parameter set" in this embodiment may come 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 the amount of cached data, or "service identifier", the amount of cached data and the signal strength of the target terminal, or "service identifier", the amount of cached data and the signal quality of the target terminal. The above parameters are set as the judgment parameters for the AP to allocate P2P channels. For example, if the amount of buffered data is relatively large, point-to-point communication can be performed. The data amount is small, and it is not recommended to allocate a point-to-point communication channel. When the service identifier is large data volume data, such as video data etc., point-to-point communication is recommended; for example, the signal strength of the target terminal is relatively weak, which is not conducive to point-to-point communication.

Example 6

Based on the same inventive concept as the above-mentioned method for allocating peer-to-peer communication resources, an embodiment of the present application further provides a terminal. Terminal includes

a memory for storing a program;

a processor, coupled to the memory, wherein the processor is configured to run the program, so that the terminal executes the method for allocating peer-to-peer communication resources according to any one of the foregoing embodiments.

The embodiment of the present application also provides a terminal, the terminal includes

The P2P transmission module includes a first transmission module and a second transmission module. The first transmission module is configured to receive the message confirming the use of the P2P service by the first terminal when the P2P indication message indicates that the use of the P2P service is confirmed. Send data to the target terminal in the time slot of the P2P service; the second transmission module is used for the target terminal to receive a message confirming the use of the P2P service when the P2P indication message indicates that the P2P service is used, and is used for the P2P service according to the P2P bitmap parameter. The time slot receives data from the first terminal. Or the first transmission module is used for the first terminal to receive the message confirming the use of the P2P service when the P2P indication message indicates that the use of the P2P service is confirmed, and send data to the target terminal in the P2P sending time slot according to the P2P bitmap parameter, and when the P2P receives The slot receives the data from the target terminal; the second transmission module is used for the target terminal to receive the message confirming the use of the P2P service when the P2P instruction message indicates that the P2P service is used, and receives the data from the first time slot according to the P2P bitmap parameter in the P2P transmission time slot. The data of the terminal is sent to the first terminal in the P2P receiving time slot.

In addition, an embodiment of the present application also 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 P2P communication resources provided by the foregoing method embodiment is implemented. For details, please refer to the foregoing method embodiment. , which is not repeated in this embodiment of the present application.

To sum up, in the method for allocating P2P communication resources provided by the embodiments of the present application, by managing time slots, the time slot period is allocated to P2P service time slots and all service time slots, and when the P2P service is determined and confirmed by each parameter, The point-to-point communication is performed in the P2P service time slot, and the P2P service time slot is restored after the point-to-point communication ends, so as to avoid all time slots being occupied during the point-to-point communication in the prior art, affecting channel transmission and affecting network performance.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may also be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architectures, functions and possible implementations of apparatuses, methods and computer program products according to various embodiments of the present application. operate. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more functions for implementing the specified logical function(s) executable instructions. 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 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 is also noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented in dedicated hardware-based systems that perform the specified functions or actions , or can be implemented in a combination of dedicated hardware and computer instructions.

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

If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, random access memory (Random Access Memory, RAM), read only memory (Read Only Memory, ROM), magnetic disk or optical disk and other media that can store program codes.

The above descriptions are merely examples of the present application, and are not intended to limit the protection scope of the present application. For those skilled in the art, various modifications and changes may be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Furthermore, it should be noted that, herein, relational terms such as "first", "second", "third", etc. are only used to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Claims

A method for point-to-point communication resource allocation, comprising:

Receive the P2P indication message sent by the network access device;

Carry out P2P transmission with the target terminal according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device; the parameter includes a subfield "P2P interval" representing the period of the P2P time slot allocation mode and a In the slot allocation period, the subfield "P2P bitmap" is used for the time slot distribution of P2P.
The method for allocating peer-to-peer communication resources according to claim 1, wherein performing P2P transmission with the target terminal according to a parameter "P2P parameter set" and a P2P indication message sent by the network access device comprises:

The P2P bitmap is used to indicate the time slot for P2P services and the time slot for all services, and the time slot represents a time unit;

If the P2P indication message indicates that the use of the P2P service is confirmed;

The first terminal receives the message confirming the use of the P2P service, and sends data to the target terminal in the time slot used for the P2P service according to the 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 used for the P2P service according to the P2P bitmap.
The method for allocating peer-to-peer communication resources according to claim 1, wherein performing P2P transmission with the target terminal according to a parameter "P2P parameter set" and a P2P indication message sent by the network access device comprises:

The P2P bitmap is used to indicate the time slot for P2P services and the time slot for all services, and the time slot represents a time unit;

If the P2P indication message indicates a message for rejecting the P2P service,

The first terminal receives the P2P indication message, indicating that the P2P operation is not accepted.
The method for allocating peer-to-peer communication resources according to claim 1, wherein performing P2P transmission with the target terminal according to a parameter "P2P parameter set" and a P2P indication message sent by the network access device comprises:

The P2P bitmap is used to indicate the time slot for the P2P service and the time slot for all services, the time slot represents the time unit, and the time slot for the P2P service includes the P2P sending time slot and the P2P receiving time slot;

If the P2P indication message indicates that it is a confirmation to use the P2P service message,

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

The target terminal receives the message confirming the use of the P2P service, receives data from the first terminal in the P2P sending time slot according to the P2P bitmap, and sends the data to the first terminal in the P2P receiving time slot.
The method for allocating peer-to-peer communication resources according to claim 1, wherein the network access device sends a broadcast message, and the broadcast message includes a parameter "P2P parameter set".
The method for allocating peer-to-peer communication resources according to claim 1, wherein 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, so The response message includes a message indicating that the use of the P2P service is confirmed, and the response message includes the parameter "P2P parameter set".
The method for point-to-point communication resource allocation according to claim 6, wherein the P2P setup request message includes a parameter "P2P parameter set".
The method for point-to-point communication resource allocation according to claim 6, wherein the P2P setup request message contains parameters "service identifier" and buffered data volume, or "service identifier", buffered data volume and the signal of the target terminal The strength, or "service identifier," the amount of buffered data and the signal quality of the target terminal.
The method for allocating peer-to-peer communication resources according to claim 6, wherein performing P2P transmission with the target terminal according to a parameter "P2P parameter set" and a response message sent by the network access device comprises:

If the target terminal supports the P2P operation, the network access device sends a response message including an instruction to confirm the use of the P2P operation to the first terminal and the target terminal;

If the target terminal does not support the P2P operation, the network access device sends a response message including an indication of not accepting the use of the P2P operation to the first terminal.
The method for allocating peer-to-peer communication resources according to claim 9, wherein determining that the target terminal supports a P2P operation comprises:

Determine whether the target terminal supports the P2P operation according to the capability information of the target terminal stored locally by the network access device;

Or send a request message to the target terminal through the network access device to request to obtain its capability, and judge whether the target terminal supports P2P operation through the capability information fed back by the target terminal.
The method for allocating peer-to-peer communication resources according to claim 6, wherein the P2P setup request message includes a parameter P2P Option for indicating a requested P2P operation type and a parameter P2P STA for indicating a target terminal that needs to be connected , the P2P Option includes "setup" indicating a request to establish a P2P connection or "release" indicating a request to release the P2P connection, and the P2P STA includes the address or identification of the target terminal.
The method for allocating peer-to-peer communication resources according to any one of claims 1-8, wherein the network access device includes at least one parameter set, and the parameter "P2P parameter set" includes a parameter used to represent modulation and coding MCS parameter for policy index.
A terminal, characterized in that it includes

a memory for storing a program;

A processor, coupled to the memory, wherein the processor is configured to run the program to cause the terminal to perform the method for peer-to-peer communication resource allocation according to any one of claims 1-12.
A terminal, characterized in that it includes

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

The P2P transmission module is used to perform P2P transmission with the target terminal according to the parameter "P2P parameter set" and the P2P indication message sent by the network access device; the parameter includes a subfield "P2P interval" representing the period of the P2P time slot allocation mode " and the subfield "P2P bitmap" indicating the distribution of time slots for P2P in a time slot allocation period.