WO2017031642A1 - Data communication method and apparatus - Google Patents

Abstract

Embodiments of the present invention provide a data communication method and an apparatus. In the solutions, frame length and uplink sub-frame to downlink sub-frame proportion of a wireless frame alternate with different timing length of hybrid automatic repeat request (HARQ) rather than being fixed. Since different requirements of HARQ timing correspond to different requirements of retransmission timing, utilized wireless frames alternate with different timing length of HARQ during the data communication processing proposed by the solution, so as to satisfy the requirements of retransmission timing.

Description

Data communication method and device Technical field

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

Background technique

For the basic duplex mode used in the cellular system, as shown in FIG. 1A, the TDD (Time Division Duplexing) mode refers to that the uplink and downlink use the same working frequency band and perform uplink and downlink at different time intervals. Signal transmission, there is GP (Guard Period) between the uplink and the downlink.

The radio frame structure of the TD-LTE (Time Division-Long Term Evolution) system is as shown in FIG. 1B. One radio frame has a length of 10 ms, and includes a special subframe and a regular subframe, and a total of 10 subframes, each of which has a sub-frame. The frame length is 1ms. The special sub-frame is divided into three time slots: DwPTS (Downlink Pilot Time Slot) (for the transmission of PSS (Primary Synchronous Signal)/PDCCH (Physical Downlink Control Channel) /PHICH (Physical HARQ indicator Channel) / PCFICH (Physical Control Format Indicator Channel) / PDSCH (Physical Downlink Shared Channel), GP ( For the protection interval between the downlink and the uplink) and the UpPTS (Uplink Pilot Time Slot) (for transmitting SRS (Sounding Reference Symbol) / PRACH (Physical Random Access Channel) Into the channel), etc.; the sum of the lengths of the three time slots DwPTS, GP, and UpPTS in the special subframe is 1 ms. The conventional subframe includes an uplink subframe and a downlink subframe, where the uplink subframe is used for transmitting uplink control signaling and service data, and the downlink subframe is used for transmitting downlink control signaling and service data.

In the TD-LTE system, the uplink and downlink subframe allocation supports 7 different modes. The specific configuration parameters are as shown in Table 1. In Table 1, D indicates that the subframe is used for downlink transmission, and U indicates that the subframe is used for uplink. Line transmission, S indicates that the subframe is a special subframe, and includes three parts: DwPTS, GP, and UpPTS.

Table 1 LTE TDD uplink and downlink subframe configuration format

In order to meet any HARQ timing requirement, several subframe structures as shown in FIG. 1C are proposed. The subframe structure 1 shown in FIG. 1C is mainly composed of symbols for downlink transmission, and further includes one for uplink. The transmitted symbol, the symbol for uplink transmission is used for transmitting an uplink control channel, and the symbol of the uplink control channel for transmission may be used for feedback response information; the subframe structure 2 shown in FIG. 1C is mainly used for symbols for uplink transmission. And comprising a symbol for downlink transmission, where the symbol for downlink transmission is used for transmitting a downlink control channel, and the symbol of the downlink control channel for transmission may be used for feedback response information.

Although the subframe structure shown in FIG. 1C can solve any HARQ timing requirement, the radio frame structure not only needs to consider the HARQ timing requirement, but also needs to consider the retransmission timing requirement. If the retransmission timing requirement is not met, there will be retransmission efficiency. The lower, retransmission success rate is lower, but for the subframe structure shown in FIG. 1C, there is currently no suitable radio frame to satisfy the retransmission timing requirement.

Summary of the invention

The embodiment of the invention provides a data communication method and device, and the radio frame used in the data communication process can meet the retransmission timing requirement.

In a first aspect, a data communication method is provided, including:

Determining a radio frame, the frame length of the radio frame and the first hybrid automatic repeat request HARQ timing Long correlation, the uplink and downlink subframe ratio of the radio frame is related to the frame length;

The data is transmitted or received using a determined radio frame structure.

With reference to the first aspect, in a first possible implementation manner, a frame length of the radio frame is equal to a product of the first HARQ timing duration and 2.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation, the uplink and downlink subframe ratio is m: (nm), where m is the number of uplink subframes, (nm) is the number of downlink subframes, and m is an integer greater than or equal to 0 and less than or equal to the frame length.

With reference to the first or second possible implementation manner of the first aspect, in a third possible implementation manner, when the first HARQ timing duration is 2, the frame length of the radio frame is 4;

The radio frame includes 0 uplink subframes and 4 downlink subframes; or

The radio frame includes one uplink subframe and three downlink subframes; or

The radio frame includes two uplink subframes and two downlink subframes; or

The radio frame includes three uplink subframes and one downlink subframe; or

The radio frame includes four uplink subframes and zero downlink subframes.

With the second possible implementation of the first aspect, in a fourth possible implementation, when the first HARQ timing duration is 3, the frame length of the radio frame is 6;

The radio frame includes 0 uplink subframes and 6 downlink subframes; or

The radio frame includes one uplink subframe and five downlink subframes; or

The radio frame includes two uplink subframes and four downlink subframes; or

The radio frame includes three uplink subframes and three downlink subframes; or

The radio frame includes four uplink subframes and two downlink subframes; or

The radio frame includes five uplink subframes and one downlink subframe; or

The radio frame includes 6 uplink subframes and 0 downlink subframes.

With reference to the second possible implementation manner of the first aspect, in a fifth possible implementation manner, when the first HARQ timing duration is 4, the frame length of the radio frame is 8;

The radio frame includes 0 uplink subframes and 8 downlink subframes; or

The radio frame includes one uplink subframe and seven downlink subframes; or

The radio frame includes two uplink subframes and six downlink subframes; or

The radio frame includes three uplink subframes and five downlink subframes; or

The radio frame includes four uplink subframes and four downlink subframes; or

The radio frame includes five uplink subframes and three downlink subframes; or

The radio frame includes 6 uplink subframes and 2 downlink subframes; or

The radio frame includes 7 uplink subframes and 1 downlink subframe; or

The radio frame includes 8 uplink subframes and 0 downlink subframes.

With reference to the first aspect, in a sixth possible implementation, a frame length of the radio frame is equal to a least common multiple of the first product and the second product;

The first product is equal to a product of the first HARQ timing duration and 2;

The second product is equal to the product of the second HARQ timing duration and two.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the uplink and downlink subframe ratio is related to a granularity of change, and the granularity of the change is positively related to the frame length and the negative correlation. The first HARQ timing duration and the second HARQ timing duration;

The granularity of the change is specifically the minimum number of uplink subframes that need to be added at one time when the uplink subframe is added to the radio frame.

With reference to the seventh possible implementation of the first aspect, in an eighth possible implementation manner, the granularity of the change meets the following rules:

Where d is the granularity of change, c is the frame length, a is the first HARQ timing duration, and b is the second HARQ timing duration.

With reference to the sixth to eighth possible implementation manners of the first aspect, in a ninth possible implementation manner, the radio frame is further related to a subframe interval, where the subframe interval is in the granularity of the change An interval between any two adjacent uplink subframes in the included uplink subframe, the subframe interval being related to the frame length and the granularity of the change.

Combining the sixth to ninth possible implementations of the first aspect, in a tenth possible implementation In the mode, the first HARQ timing duration is 2, and when the second HARQ timing duration is 3, the frame length of the radio frame is 12;

The radio frame includes 0 uplink subframes and 12 downlink subframes; or

The radio frame includes six uplink subframes and six downlink subframes, and any two uplink subframes of the six uplink subframes are not adjacent to each other, and any two of the six downlink subframes are not adjacent. Different downlink subframes are not adjacent; or

The radio frame includes 12 uplink subframes and 0 downlink subframes.

With reference to the sixth to the ninth possible implementation manners of the first aspect, in the eleventh possible implementation manner, the first HARQ timing duration is 2, and the second HARQ timing duration is 4. The frame length of the radio frame is 8;

The radio frame includes 0 uplink subframes and 8 downlink subframes; or

The radio frame includes two uplink subframes and six downlink subframes, and the two uplink subframes are separated by three downlink subframes, and the six downlink subframes are divided into two groups of downlink subframes. The two sets of downlink subframes include three downlink subframes, and the two sets of downlink subframes are separated by one uplink subframe; or

The radio frame includes four uplink subframes and four downlink subframes, and any two of the four uplink subframes are not adjacent to each other, and any two of the four downlink subframes are not adjacent. The downlink subframes are not adjacent to each other; or

The radio frame includes four uplink subframes and four downlink subframes, and the four uplink subframes include two uplink subframes, and the two uplink subframes each include two uplink subframes. The uplink sub-frames are not adjacent to each other, and the four downlink sub-frames include two downlink sub-frames, and the two sets of downlink sub-frames each include two downlink sub-frames, and the two sets of downlink sub-frames are not adjacent to each other. ;or

The radio frame includes six uplink subframes and two downlink subframes, and the six uplink subframes include two uplink subframes, and the two uplink subframes each include three uplink subframes. The uplink subframes are separated by one downlink subframe, and the two downlink subframes are not adjacent; or

The radio frame includes 8 uplink subframes and 0 downlink subframes.

With reference to the sixth to ninth possible implementation manners of the first aspect, in a twelfth possible implementation manner, the first HARQ timing duration is 3, and the second HARQ timing duration is 4. The frame length of the radio frame is 24;

The radio frame includes 0 uplink subframes and 24 downlink subframes; or

The radio frame includes 12 uplink subframes and 12 downlink subframes, and any two of the 12 uplink subframes are not adjacent to each other, and any two of the 12 downlink subframes Different downlink subframes are not adjacent; or

The radio frame includes 24 uplink subframes and 0 downlink subframes.

In a second aspect, a data communication apparatus is provided, comprising:

a determining module, configured to determine a radio frame, where a frame length of the radio frame is related to a first hybrid automatic repeat request HARQ timing duration, and an uplink and downlink subframe ratio of the radio frame is related to the frame length;

And a communication module, configured to send or receive data by using a determined radio frame structure.

With reference to the second aspect, in a first possible implementation, the frame length of the radio frame determined by the determining module is equal to the product of the first HARQ timing duration and 2.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the uplink and downlink subframe ratio of the radio frame determined by the determining module is m: (nm), and the m is an uplink The number of subframes, the (nm) is the number of downlink subframes, and the m is an integer greater than or equal to 0 and less than or equal to the frame length.

With reference to the first or second possible implementation manner of the second aspect, in a third possible implementation manner, when the first HARQ timing duration is 2, the frame length of the radio frame determined by the determining module Is 4;

The radio frame determined by the determining module includes 0 uplink subframes and 4 downlink subframes; or

The radio frame determined by the determining module includes one uplink subframe and three downlink subframes; or

The radio frame determined by the determining module includes two uplink subframes and two downlink subframes; or

The radio frame determined by the determining module includes three uplink subframes and one downlink subframe; or

The radio frame determined by the determining module includes four uplink subframes and zero downlink subframes.

With the second possible implementation of the second aspect, in a fourth possible implementation, when the first HARQ timing duration is 3, the frame length of the radio frame determined by the determining module is 6;

The radio frame determined by the determining module includes 0 uplink subframes and 6 downlink subframes; or

The radio frame determined by the determining module includes one uplink subframe and five downlink subframes; or

The radio frame determined by the determining module includes two uplink subframes and four downlink subframes; or

The radio frame determined by the determining module includes three uplink subframes and three downlink subframes; or

The radio frame determined by the determining module includes four uplink subframes and two downlink subframes; or

The radio frame determined by the determining module includes five uplink subframes and one downlink subframe; or

The radio frame determined by the determining module includes 6 uplink subframes and 0 downlink subframes.

With the second possible implementation of the second aspect, in a fifth possible implementation, when the first HARQ timing duration is 4, the frame length of the radio frame determined by the determining module is 8;

The radio frame determined by the determining module includes 0 uplink subframes and 8 downlink subframes; or

The radio frame determined by the determining module includes one uplink subframe and seven downlink subframes; or

The radio frame determined by the determining module includes two uplink subframes and six downlink subframes; or

The radio frame determined by the determining module includes three uplink subframes and five downlink subframes; or

The radio frame determined by the determining module includes four uplink subframes and four downlink subframes; or

The radio frame determined by the determining module includes five uplink subframes and three downlink subframes; or

The radio frame determined by the determining module includes 6 uplink subframes and 2 downlink subframes; or

The radio frame determined by the determining module includes 7 uplink subframes and 1 downlink subframe; or

The radio frame determined by the determining module includes 8 uplink subframes and 0 downlink subframes.

With reference to the second aspect, in a sixth possible implementation, the frame length of the radio frame determined by the determining module is equal to the least common multiple of the first product and the second product;

The first product is equal to a product of the first HARQ timing duration and 2;

The second product is equal to the product of the second HARQ timing duration and two.

With reference to the sixth possible implementation manner of the foregoing aspect, in a seventh possible implementation, the uplink and downlink subframe ratio of the radio frame determined by the determining module is related to a granularity of change, and the granularity of the change is positively correlated with The frame length and the negative correlation are related to the first HARQ timing duration and the second HARQ timing duration;

The granularity of the change is specifically the minimum number of uplink subframes that need to be added at one time when the uplink subframe is added to the radio frame.

With reference to the seventh possible implementation manner of the second aspect, in the eighth possible implementation manner, the granularity of the change meets the following rules:

Where d is the granularity of change, c is the frame length, a is the first HARQ timing duration, and b is the second HARQ timing duration.

With reference to the sixth to eighth possible implementation manners of the second aspect, in a ninth possible implementation manner, the radio frame determined by the determining module is further related to a subframe interval, where the subframe interval is An interval between any two adjacent uplink subframes in the included uplink subframe in the granularity, the subframe interval being related to the frame length and the granularity of the change.

With reference to the sixth to the ninth possible implementation manners of the second aspect, in a tenth possible implementation manner, when the first HARQ timing duration is 2, and the second HARQ timing duration is 3, Determining that the frame length of the radio frame determined by the module is 12;

The radio frame determined by the determining module includes 0 uplink subframes and 12 downlink subframes; or

The radio frame determined by the determining module includes six uplink subframes and six downlink subframes, and any two uplink subframes of the six uplink subframes are not adjacent to each other, and the six downlink subframes are not adjacent to each other. Any two different downlink subframes are not adjacent; or

The radio frame determined by the determining module includes 12 uplink subframes and 0 downlink subframes.

With reference to the sixth to the ninth possible implementation manners of the second aspect, in the eleventh possible implementation manner, the first HARQ timing duration is 2, and the second HARQ timing duration is 4. The frame length of the radio frame determined by the determining module is 8;

The radio frame determined by the determining module includes 0 uplink subframes and 8 downlink subframes; or

The radio frame determined by the determining module includes two uplink subframes and six downlink subframes, and the two uplink subframes are separated by three downlink subframes, and the six downlink subframes are divided into two groups of downlink subframes. a frame, the two sets of downlink subframes each include three downlink subframes, and the two sets of downlink subframes are separated by one uplink subframe; or

The radio frame determined by the determining module includes 4 uplink subframes and 4 downlink subframes, and the 4 Any two uplink subframes of the uplink subframes are not adjacent to each other, and any two downlink subframes of the four downlink subframes are not adjacent to each other; or

The radio frame determined by the determining module includes four uplink subframes and four downlink subframes, and the four uplink subframes include two uplink subframes, and the two uplink subframes include two uplink subframes. The two downlink sub-frames are not adjacent to each other, and the four downlink sub-frames include two downlink sub-frames, and the two sets of downlink sub-frames each include two downlink sub-frames, and the two sets of downlink sub-frames Not adjacent; or

The radio frame determined by the determining module includes six uplink subframes and two downlink subframes, and the six uplink subframes include two uplink subframes, and the two uplink subframes include three uplink subframes. The two uplink subframes are separated by one downlink subframe, and the two downlink subframes are not adjacent; or

The radio frame determined by the determining module includes 8 uplink subframes and 0 downlink subframes.

With reference to the sixth to the ninth possible implementation manners of the second aspect, in the twelfth possible implementation, the first HARQ timing duration is 3, and the second HARQ timing duration is 4. The frame length of the radio frame determined by the determining module is 24;

The radio frame determined by the determining module includes 0 uplink subframes and 24 downlink subframes; or

The radio frame determined by the determining module includes 12 uplink subframes and 12 downlink subframes, and any two uplink subframes of the 12 uplink subframes are not adjacent to each other, and the 12 downlink subframes are not adjacent to each other. Any two different downlink subframes are not adjacent; or

The radio frame determined by the determining module includes 24 uplink subframes and 0 downlink subframes.

In the embodiment of the present invention, a data communication method is proposed. In this solution, the frame length of the radio frame used in the data communication process and the uplink and downlink subframe ratio are no longer fixed, but are different according to the HARQ timing duration. However, since different HARQ timing requirements correspond to different retransmission timing requirements, the data communication method proposed by the scheme can meet the retransmission timing requirement.

DRAWINGS

1A is a schematic diagram of a radio frame structure in the prior art;

FIG. 1B is a schematic diagram of another radio frame structure in the prior art; FIG.

1C is a schematic diagram of two subframe structures in the prior art;

2A is a method for data communication according to an embodiment of the present invention;

2B is a schematic structural diagram of a radio frame according to an embodiment of the present invention;

2C is another schematic structural diagram of a radio frame according to an embodiment of the present invention;

2D is another schematic structural diagram of a radio frame according to an embodiment of the present invention;

2E is another schematic structural diagram of a radio frame according to an embodiment of the present invention;

2F is another schematic structural diagram of a radio frame according to an embodiment of the present invention;

2G is another schematic structural diagram of a radio frame according to an embodiment of the present invention;

3A is a schematic diagram of a data communication apparatus according to an embodiment of the present invention;

FIG. 3B is another schematic diagram of a data communication apparatus 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 in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Additionally, the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the letter "/" in this article generally indicates that the contextual object is an "or" relationship.

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, and the preferred embodiments of the present invention are intended to illustrate and explain the invention, and not to limit the invention, and The embodiments in the application and the features in the embodiments may be combined with each other.

Referring to FIG. 2A, an embodiment of the present invention provides a data communication method, and the process is as follows:

Step 200: The communication device determines a radio frame, and the frame length of the radio frame is related to the first HARQ timing duration, and the uplink and downlink subframe ratio of the radio frame is related to the frame length.

Step 210: The communication device sends or receives data using the determined radio frame structure.

The frame length of the radio frame mentioned in the embodiment of the present invention is specifically the number of subframes included in one radio frame. For example, if one radio frame includes 8 subframes, the frame length of the radio frame is 8; and one radio frame includes 4 For a subframe, the frame length of the radio frame is 4, and the above description is based on the case where the number of subframes included in one radio frame is 8 and 4, and is not limited thereto.

The first HARQ timing duration mentioned in the embodiment of the present invention is specifically, the number of subframes in which the subframe that receives the downlink data and the subframe that performs the HARQ feedback on the downlink data are separated, for example, the communication device is at the n+0. The subframe receives the downlink data. If the HARQ feedback is performed on the received downlink data in the n+4th subframe, the first HARQ timing duration is 4; the communication device receives the downlink data in the n+0th subframe, if The n+8th subframe performs HARQ feedback on the received downlink data, and the first HARQ timing duration is 8. The above description is based on the case where the first HARQ timing durations are 8 and 4, and is not limited thereto.

In an actual application, the uplink retransmission timing duration needs to be equal to the HARQ timing duration. Therefore, in order to improve the retransmission success rate and the retransmission efficiency, in the embodiment of the present invention, optionally, the frame length of the radio frame is equal to the first HARQ timing duration. The product with 2.

The retransmission timing duration mentioned in the embodiment of the present invention is specifically, the number of subframes between the subframe that receives the downlink data and the subframe that retransmits the downlink data for the first time, for example, the communication device is in the n+0th subframe. After receiving the downlink data, if the downlink data transmission fails, the downlink data is retransmitted for the first time in the n+4th subframe, the retransmission timing duration is 4; the communication device receives the downlink data in the n+0th subframe, if the downlink data If the transmission fails, the downlink data is retransmitted for the first time in the n+8th subframe, and the retransmission timing duration is 8. The above description is based on the example of the retransmission timing durations of 8 and 4, and is not limited thereto.

The following is an example of the uplink retransmission timing duration equal to the HARQ timing duration.

For example, the communication device receives the downlink data in the n+0th subframe, and performs HARQ feedback on the received downlink data in the n+4th subframe, and if the downlink data transmission fails, the n+8th subframe needs to be performed. Retransmitting the downlink data; the communication device receives the downlink data in the n+0th subframe, and performs HARQ feedback on the received downlink data in the n+8th subframe, if the downlink data is transmitted If the input fails, the downlink data needs to be retransmitted in the n+16th subframe.

For example, if the first HARQ timing duration is 4, the retransmission timing duration is also 4. At this time, the frame length of the radio frame is 8, as shown in FIG. 2B, if the first HARQ timing duration is 2, the retransmission timing is The duration is also 2. At this time, the frame length of the radio frame is 4, as shown in FIG. 2C.

The uplink subframe mentioned in the embodiment of the present invention is specifically a subframe used for uplink transmission, and the uplink transmission may be an uplink initial transmission or an uplink retransmission.

For the same reason, the downlink subframe mentioned in the embodiment of the present invention is specifically a subframe for downlink transmission, and the downlink transmission may be downlink initial transmission or downlink retransmission.

The attributes of the radio frame include, in addition to the frame length of the radio frame, the ratio of the uplink and downlink subframes in the radio frame. Therefore, for the case that the communication device only needs to meet the first HARQ timing duration, the embodiment of the present invention further provides an optional uplink-downlink subframe ratio, specifically: the uplink and downlink subframe ratio of the radio frame is m: ( Nm), m is the number of uplink subframes, (nm) is the number of downlink subframes, m is an integer greater than or equal to 0, and less than or equal to the frame length, and n is the frame length.

Wherein, when a radio frame includes m uplink subframes and (nm) downlink subframes, that is, when the uplink and downlink subframe ratio of the radio frame is m: (nm), the uplink and downlink subframe ratios of the radio frame are specific. Can be in the following forms:

n: 0, (n-1): 1, (n-2): 2, (n-3): 3, ..., 1: (n-1), 0: n where n is the frame length.

For example, when the first HARQ timing duration is 2, the frame length of the radio frame is 4; at this time, the radio frame includes 0 uplink subframes and 4 downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame. 0:4; or, the radio frame includes 1 uplink subframe and 3 downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 1:3; or the radio frame includes 2 uplink subframes. The two downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 2:2; or the radio frame includes three uplink subframes and one downlink subframe, that is, uplink and downlink subframes of one radio frame. The ratio is 3:1; or, the radio frame includes 4 uplink subframes and 0 downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 4:0.

For example, when the first HARQ timing duration is 3, the frame length of the radio frame is 6; at this time, the radio frame includes 0 uplink subframes and 6 downlink subframes, that is, uplink and downlink subframes of one radio frame. Ratio 0:6; or, the radio frame includes one uplink subframe and five downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 1:5; or the radio frame includes two uplink subframes, 4 downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 2:4; or the radio frame includes 3 uplink subframes and 3 downlink subframes, that is, uplink and downlink subframes of one radio frame. The ratio is 3:3; or, the radio frame includes 4 uplink subframes and 2 downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 4:2; or the radio frame includes 5 uplink subframes. The frame and one downlink subframe, that is, the uplink and downlink subframe ratio of one radio frame is 5:1; or the radio frame includes 6 uplink subframes and 0 downlink subframes, that is, the uplink and downlink subframes of one radio frame. The frame ratio is 6:0.

For example, when the first HARQ timing duration is 4, the frame length of the radio frame is 8; at this time, the radio frame includes 0 uplink subframes and 8 downlink subframes, that is, uplink and downlink subframes of one radio frame. The ratio is 0:8; or, the radio frame includes 1 uplink subframe and 7 downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 1:7; or the radio frame includes 2 uplink subframes. The frame and the six downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 2:6; or the radio frame includes three uplink subframes and five downlink subframes, that is, the uplink and downlink subframes of one radio frame. The frame ratio is 3:5; or, the radio frame includes 4 uplink subframes and 4 downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame is 4:4; or, the radio frame includes 5 The uplink subframe and the three downlink subframes, that is, the uplink and downlink subframe ratio of one radio frame are 5:3; or the radio frame includes 6 uplink subframes and 2 downlink subframes, that is, the upper and lower subframes of one radio frame. The row subframe ratio is 6:2; or the radio frame includes 7 uplink subframes and 1 downlink subframe, that is, uplink and downlink subframes of one radio frame. Ratio of 7: 1; or, the radio frame includes eight uplink subframes, downlink subframes 0, i.e., a downlink radio frame sub ratio of 8: 0.

The attributes of the radio frame include the frame length of the radio frame and the ratio of the uplink and downlink subframes, and the location of the uplink and downlink subframes in the radio frame. However, for the communication device, only the first HARQ timing duration is required. Regardless of the ratio of the uplink and downlink subframes of the radio frame, the positions of the uplink subframe and the downlink subframe are not specifically limited.

For example, when one radio frame includes two uplink subframes and four downlink subframes, two uplink subframes may be adjacent to each other, or may be separated by one subframe, or may be separated by two subframes, or may be spaced apart. 3 subframes, or 4 subframes.

For example, when one radio frame includes three uplink subframes and four downlink subframes, three uplink subframes may be consecutive, or two uplink subframes may be adjacent, or may be three uplink subframes. Any two uplink subframes are not adjacent.

It should be noted that when the uplink and downlink subframe ratio of the radio frame is 0:n, n is the frame length of the radio frame. Therefore, since there is no uplink subframe, there is no uplink initial data. Therefore, In this case, the uplink subframe may not be included in one radio frame.

Similarly, when the ratio of the uplink and downlink subframes of the radio frame is n:0, n is the frame length of the radio frame. At this time, since there is no downlink subframe, there is no downlink initial data, so here In this case, the downlink subframe may not be included in one radio frame.

For example, when a radio frame includes 8 subframes, the uplink and downlink subframe ratio of the radio frame may be 8:0, 7:1, 6:2, 5:3, 4:4, 3:5, 2: 6, 1:7, 0:8, as shown in Figure 2D.

When the uplink and downlink subframe ratio of the radio frame is 0:8, since there is no uplink initial transmission data, the uplink subframe may not be included in one radio frame; when the uplink and downlink subframe ratio of the radio frame is 8: At 0, since there is no downlink initial transmission data, the downlink subframe may not be included in one radio frame.

For another example, when the frame length of the radio frame is four, the uplink and downlink subframe ratio of the radio frame may be 0:4, 3:1, 2:2, 1:3, and 4:0.

When the ratio of the uplink and downlink subframes of the radio frame is 0:4, since there is no uplink initial transmission data, the uplink subframe may not be included in one radio frame; when the ratio of the uplink and downlink subframes is 4:0, Since there is no downlink initial transmission data, the downlink subframe may not be included in one radio frame.

The above is the case that the data sent or received by the communication device provided by the embodiment of the present invention only needs to satisfy one HARQ timing duration; different services may have different requirements for delays as the service development needs, and a communication device may have Handling multiple services related to the two HARQ timing durations, for example, the service 1 needs to meet the first HARQ timing duration, the service 2 needs to meet the second HARQ timing duration, and the communication device uses the first HARQ timing duration when processing the service 1. If the related radio frame is used, the retransmission timing requirement of the service 1 can be satisfied. When the communication device still uses the radio frame related to the first HARQ timing duration when processing the service 2, the retransmission timing requirement of the service 2 cannot be satisfied.

Therefore, when the communication device needs to process multiple services related to the two HARQ timing durations, in order to avoid the defect that the retransmission success rate of the service to be processed is low and the retransmission efficiency is poor, the embodiment of the present invention further provides a The frame length of the optional radio frame is as follows:

The frame length of the wireless frame is equal to the least common multiple of the first product and the second product;

The first product is equal to the product of the first HARQ timing duration and 2;

The second product is equal to the product of the second HARQ timing duration and two.

For example, the first HARQ timing duration is 2, the second HARQ timing duration is 4, the first product is 4, and the second product is 8. Since the least common multiple of 4 8 is 8, the frame length of the radio frame is 8.

For another example, the first HARQ timing duration is 2, the second HARQ timing duration is 3, the first product is 4, and the second product is 6. Since the least common multiple of 4 6 is 12, the frame length of the radio frame is 12. .

When the communication device needs to meet the two HARQ timing durations, not only the retransmission requirement at the initial transmission but also the retransmission requirement at the time of retransmission is satisfied, for example, if the 0th subframe is an uplink subframe, when the first HARQ The timing of the timing is 2, and when the second HARQ timing is 3, the fourth subframe needs to be an uplink subframe for the first HARQ timing duration, and the fourth subframe needs to be an uplink subframe. Retransmission of the first HARQ timing duration and the second HARQ timing duration, the 8th subframe and the 10th subframe need to be uplink subframes; similarly, for the second HARQ timing duration, in order to satisfy the 0th subframe retransmission The 6th subframe needs to be an uplink subframe, and the 6th subframe needs to be an uplink subframe in order to satisfy the retransmission of the first HARQ timing duration and the second HARQ timing duration.

Therefore, in the case that the communication device needs to satisfy the two HARQ timing durations, the uplink and downlink subframe ratio of the radio frame needs to meet the following rules:

The uplink and downlink subframe ratio is related to the change granularity, and the change granularity is positively related to the frame length, the negative correlation between the first HARQ timing duration and the second HARQ timing duration;

The granularity of the change is specifically the minimum number of uplink subframes that need to be added at one time when the uplink subframe is added in the radio frame.

In the application, the variation granularity includes a certain interval between any two subframes, which In this embodiment of the present invention, optionally, the radio frame is also related to the subframe interval, and the subframe interval is any two adjacent uplink sub-frames included in the change granularity. The interval between frames, which is related to the frame length and the granularity of change.

Optionally, the subframe interval satisfies the following rules:

Subframe interval = (frame length / granularity of change) -1 (Formula 1)

Of course, the above is only a specific example of calculating the subframe interval, but is not limited thereto, as long as the calculated subframe interval satisfies the retransmission requirement.

The granularity of the change can be described as follows. If the uplink subframe is to be added, it is not increased one by one, but is increased by the group, so that not only the requirement of retransmission for the initial transmission failure but also the first is satisfied. If the retransmission fails, the retransmission needs to be re-transmitted. For example, if the granularity of the change is 2, two uplink subframes are added at a time. In this case, if five uplink subframes need to be added, 10 uplink subframes need to be added. However, if the previously added uplink subframe already includes the uplink subframe to be added later, in this case, the total number of uplink subframes that are added in total may be less than 10, and if the granularity of change is 3, one-time increase is required. 3 uplink subframes. In this case, if 4 uplink subframes need to be added, 12 uplink subframes are actually added. However, if the previously added uplink subframe already includes the uplink subframe to be added later, this is the case. In time, the number of uplink subframes that are actually increased in total may be less than 12.

In the embodiment of the present invention, optionally, the granularity of change satisfies the following rules:

   (公式二)

(Formula 2)

Where d is the granularity of change, c is the frame length, a is the first HARQ timing duration, and b is the second HARQ timing duration.

In the embodiment of the present invention, if the communication device requires two types of HARQ timing durations, if the frame length and the granularity of the radio frame are determined, the ratio of the uplink and downlink subframes of the radio frame may be determined.

For example, the first HARQ timing duration is 2, and the second HARQ timing duration is 4. The radio frame length is 8 and the change granularity is 2, and the ratio of the uplink and downlink subframes is as follows. A situation, as shown in Figure 2E:

8:0, 6:2, 4:4, 2:6, 0:8.

That is, when the first HARQ timing duration is 2 and the second HARQ timing duration is 4, the frame length of the radio frame is 8. At this time, the structure of the radio frame can be as follows:

The radio frame includes 0 uplink subframes and 8 downlink subframes; or

The radio frame includes two uplink subframes and six downlink subframes. The two uplink subframes are separated by three downlink subframes, and the six downlink subframes are divided into two downlink subframes, and the two downlink subframes include three. One downlink subframe, one uplink subframe between two sets of downlink subframes; or

The radio frame includes four uplink subframes and four downlink subframes, and any two uplink subframes of the four uplink subframes are not adjacent to each other, and between any two downlink subframes of the four downlink subframes are not Adjacent; or

The radio frame includes four uplink subframes and four downlink subframes, and the four uplink subframes include two uplink subframes, and the two uplink subframes include two uplink subframes, and the two uplink subframes are not adjacent to each other. The four downlink subframes include two downlink subframes, and the two downlink subframes each include two downlink subframes, and the two downlink subframes are not adjacent to each other; or

The radio frame includes six uplink subframes and two downlink subframes, and the six uplink subframes include two uplink subframes, and the two uplink subframes each include three uplink subframes, and one uplink subframe is separated by one. In the downlink subframe, the two downlink subframes are not adjacent; or

The radio frame includes 8 uplink subframes and 0 downlink subframes.

For another example, the first HARQ timing duration is 2, and the second HARQ timing duration is 3. The radio frame length is 12, and the change granularity is calculated to be 6. At this time, the ratio of the uplink and downlink subframes is as follows. A situation, as shown in Figure 2F:

0:12, 6:6, 12:0.

That is, when the first HARQ timing duration is 2 and the second HARQ timing duration is 3, the frame length of the radio frame is 12. At this time, the form of the radio frame can be as follows:

The radio frame includes 0 uplink subframes and 12 downlink subframes; or

The radio frame includes 6 uplink subframes and 6 downlink subframes, and any two uplink subframes of the 6 uplink subframes are not adjacent, and any two of the 6 downlink subframes have different downlink subframes. No phase Neighbor; or

The radio frame includes 12 uplink subframes and 0 downlink subframes.

For example, the first HARQ timing duration is 3, the second HARQ timing duration is 4, the radio frame length is 24, and the change granularity is 12, and the ratio of the uplink and downlink subframes is as follows. A situation, as shown in Figure 2G:

0:24, 12:12, 24:0.

In less case, the first HARQ timing duration is 3, and when the second HARQ timing duration is 4, the frame length of the radio frame is 24;

The radio frame includes 0 uplink subframes and 24 downlink subframes; or

The radio frame includes 12 uplink subframes and 12 downlink subframes, and any two uplink subframes of the 12 uplink subframes are not adjacent, and any two of the 12 downlink subframes have different downlink subframes. Not adjacent; or

The radio frame includes 24 uplink subframes and 0 downlink subframes.

The communication device mentioned in the embodiment of the present invention may be a base station or a user equipment.

The base station may be an eNB (evolved Node B, an evolved base station) or a BS (Base Station). With the development of the communication technology, the base station may be a base station in other network architectures.

The user equipment may be a User Equipment (UE), such as a mobile device or a portable electronic device (pad).

In this solution, the frame length and uplink-downlink subframe ratio of the radio frame used in the data communication process are no longer fixed, but vary with the HARQ timing duration, because different HARQ timing requirements are different. The retransmission timing requirement, therefore, the data communication method proposed by the scheme can meet the retransmission timing requirement.

Referring to FIG. 3A, an embodiment of the present invention further provides a data communication apparatus, where the data communication apparatus includes a determining module 30 and a communication module 31, where:

a determining module 30, configured to determine a radio frame, where a frame length of the radio frame is related to a first HARQ timing duration, and an uplink and downlink subframe ratio of the radio frame is related to a frame length;

The communication module 31 is configured to send or receive data by using a determined radio frame structure.

Optionally, the frame length of the radio frame determined by the determining module 30 is equal to the product of the first HARQ timing duration and 2.

Optionally, the uplink and downlink subframe ratio of the radio frame determined by the determining module 30 is m: (nm), m is the number of uplink subframes, (nm) is the number of downlink subframes, and m is greater than or equal to 0. And an integer less than or equal to the frame length.

Optionally, when the first HARQ timing duration is 2, the frame length of the radio frame determined by the determining module 30 is 4;

The radio frame determined by the determining module 30 includes 0 uplink subframes and 4 downlink subframes; or

The radio frame determined by the determining module 30 includes one uplink subframe and three downlink subframes; or

The radio frame determined by the determining module 30 includes 2 uplink subframes and 2 downlink subframes; or

The radio frame determined by the determining module 30 includes three uplink subframes and one downlink subframe; or

The radio frame determined by the determining module 30 includes 4 uplink subframes and 0 downlink subframes.

Optionally, when the first HARQ timing duration is 3, the frame length of the radio frame determined by the determining module 30 is 6.

The radio frame determined by the determining module 30 includes 0 uplink subframes and 6 downlink subframes; or

The radio frame determined by the determining module 30 includes one uplink subframe and five downlink subframes; or

The radio frame determined by the determining module 30 includes 2 uplink subframes and 4 downlink subframes; or

The radio frame determined by the determining module 30 includes three uplink subframes and three downlink subframes; or

The radio frame determined by the determining module 30 includes 4 uplink subframes and 2 downlink subframes; or

The radio frame determined by the determining module 30 includes 5 uplink subframes and 1 downlink subframe; or

The radio frame determined by the determining module 30 includes 6 uplink subframes and 0 downlink subframes.

Optionally, when the first HARQ timing duration is 4, the frame length of the radio frame determined by the determining module 30 is 8;

The radio frame determined by the determining module 30 includes 0 uplink subframes and 8 downlink subframes; or

The radio frame determined by the determining module 30 includes one uplink subframe and seven downlink subframes; or

The radio frame determined by the determining module 30 includes two uplink subframes and six downlink subframes; or

The radio frame determined by the determining module 30 includes three uplink subframes and five downlink subframes; or

The radio frame determined by the determining module 30 includes 4 uplink subframes and 4 downlink subframes; or

The radio frame determined by the determining module 30 includes 5 uplink subframes and 3 downlink subframes; or

The radio frame determined by the determining module 30 includes 6 uplink subframes and 2 downlink subframes; or

The radio frame determined by the determining module 30 includes 7 uplink subframes and 1 downlink subframe; or

The radio frame determined by the determining module 30 includes 8 uplink subframes and 0 downlink subframes.

Optionally, the frame length of the radio frame determined by the determining module 30 is equal to the least common multiple of the first product and the second product;

The first product is equal to the product of the first HARQ timing duration and 2;

The second product is equal to the product of the second HARQ timing duration and two.

Optionally, the uplink and downlink subframe ratio of the radio frame determined by the determining module 30 is related to the granularity of change, and the granularity of the change is positively related to the frame length, the negative correlation with the first HARQ timing duration, and the second HARQ timing duration;

The granularity of the change is specifically the minimum number of uplink subframes that need to be added at one time when the uplink subframe is added in the radio frame.

Optionally, the granularity of change conforms to the following rules:

Where d is the granularity of change, c is the frame length, a is the first HARQ timing duration, and b is the second HARQ timing duration.

Optionally, the radio frame determined by the determining module 30 is further related to the subframe interval, where the subframe interval is an interval between any two adjacent uplink subframes in the uplink subframe included in the change granularity, and the subframe interval is Related to frame length and granularity of change.

Optionally, the first HARQ timing duration is 2, and when the second HARQ timing duration is 3, the frame length of the radio frame determined by the determining module 30 is 12;

The radio frame determined by the determining module 30 includes 0 uplink subframes and 12 downlink subframes; or

The radio frame determined by the determining module 30 includes 6 uplink subframes and 6 downlink subframes, and 6 uplinks. Any two uplink subframes in the subframe are not adjacent to each other, and any two different downlink subframes of the six downlink subframes are not adjacent to each other; or

The radio frame determined by the determining module 30 includes 12 uplink subframes and 0 downlink subframes.

Optionally, the first HARQ timing duration is 2, and when the second HARQ timing duration is 4, the frame length of the radio frame determined by the determining module 30 is 8;

The radio frame determined by the determining module 30 includes 0 uplink subframes and 8 downlink subframes; or

The radio frame determined by the determining module 30 includes two uplink subframes and six downlink subframes, and two downlink subframes are separated by three downlink subframes, and six downlink subframes are divided into two downlink subframes, and two groups of downlinks are configured. The subframes include three downlink subframes, and the two downlink subframes are separated by one uplink subframe; or

The radio frame determined by the determining module 30 includes four uplink subframes and four downlink subframes, and any two uplink subframes of the four uplink subframes are not adjacent to each other, and any two of the four downlink subframes are downlink. Subframes are not adjacent; or

The radio frame determined by the determining module 30 includes four uplink subframes and four downlink subframes, and the four uplink subframes include two uplink subframes, and the two uplink subframes include two uplink subframes and two uplink subframes. The two downlink subframes include two downlink subframes, and the two downlink subframes include two downlink subframes, and the two downlink subframes are not adjacent to each other; or

The radio frame determined by the determining module 30 includes 6 uplink subframes and 2 downlink subframes, and the 6 uplink subframes include two uplink subframes, and the two uplink subframes include three uplink subframes and two uplink subframes. 1 downlink subframe is separated, and 2 downlink subframes are not adjacent; or

The radio frame determined by the determining module 30 includes 8 uplink subframes and 0 downlink subframes.

Optionally, the first HARQ timing duration is 3, and when the second HARQ timing duration is 4, the frame length of the radio frame determined by the determining module 30 is 24;

The radio frame determined by the determining module 30 includes 0 uplink subframes and 24 downlink subframes; or

The radio frame determined by the determining module 30 includes 12 uplink subframes and 12 downlink subframes, and any two uplink subframes of the 12 uplink subframes are not adjacent, and any two of the 12 downlink subframes are different. The downlink subframes are not adjacent; or

The radio frame determined by the determining module 30 includes 24 uplink subframes and 0 downlink subframes.

Referring to FIG. 3B, another embodiment of the present invention further provides a data communication device, where the data communication device includes a processor 300 and a transceiver 310, where:

The processor 300 is configured to determine a radio frame, where a frame length of the radio frame is related to a first HARQ timing duration, and an uplink and downlink subframe ratio of the radio frame is related to a frame length.

The transceiver 310 is configured to send or receive data by using a determined radio frame structure.

Optionally, the frame length of the radio frame determined by the processor 300 is equal to the product of the first HARQ timing duration and 2.

Optionally, the uplink and downlink subframe ratio of the radio frame determined by the processor 300 is m: (nm), where m is the number of uplink subframes, (nm) is the number of downlink subframes, and m is greater than or equal to 0. And an integer less than or equal to the frame length.

Optionally, when the first HARQ timing duration is 2, the frame length of the radio frame determined by the processor 300 is 4;

The radio frame determined by the processor 300 includes 0 uplink subframes and 4 downlink subframes; or

The radio frame determined by the processor 300 includes one uplink subframe and three downlink subframes; or

The radio frame determined by the processor 300 includes two uplink subframes and two downlink subframes; or

The radio frame determined by the processor 300 includes three uplink subframes and one downlink subframe; or

The radio frame determined by the processor 300 includes 4 uplink subframes and 0 downlink subframes.

Optionally, when the first HARQ timing duration is 3, the frame length of the radio frame determined by the processor 300 is 6.

The radio frame determined by the processor 300 includes 0 uplink subframes and 6 downlink subframes; or

The radio frame determined by the processor 300 includes one uplink subframe and five downlink subframes; or

The radio frame determined by the processor 300 includes two uplink subframes and four downlink subframes; or

The radio frame determined by the processor 300 includes three uplink subframes and three downlink subframes; or

The radio frame determined by the processor 300 includes four uplink subframes and two downlink subframes; or

The radio frame determined by the processor 300 includes five uplink subframes and one downlink subframe; or

The radio frame determined by the processor 300 includes 6 uplink subframes and 0 downlink subframes.

Optionally, when the first HARQ timing duration is 4, the frame of the radio frame determined by the processor 300 is Length is 8;

The radio frame determined by the processor 300 includes 0 uplink subframes and 8 downlink subframes; or

The radio frame determined by the processor 300 includes one uplink subframe and seven downlink subframes; or

The radio frame determined by the processor 300 includes two uplink subframes and six downlink subframes; or

The radio frame determined by the processor 300 includes three uplink subframes and five downlink subframes; or

The radio frame determined by the processor 300 includes 4 uplink subframes and 4 downlink subframes; or

The radio frame determined by the processor 300 includes five uplink subframes and three downlink subframes; or

The radio frame determined by the processor 300 includes 6 uplink subframes and 2 downlink subframes; or

The radio frame determined by the processor 300 includes 7 uplink subframes and 1 downlink subframe; or

The radio frame determined by the processor 300 includes 8 uplink subframes and 0 downlink subframes.

Optionally, the frame length of the radio frame determined by the processor 300 is equal to the least common multiple of the first product and the second product;

The first product is equal to the product of the first HARQ timing duration and 2;

The second product is equal to the product of the second HARQ timing duration and two.

Optionally, the uplink and downlink subframe ratio of the radio frame determined by the processor 300 is related to the granularity of the change, and the granularity of the change is positively related to the frame length, the negative correlation between the first HARQ timing duration and the second HARQ timing duration;

The granularity of the change is specifically the minimum number of uplink subframes that need to be added at one time when the uplink subframe is added in the radio frame.

Optionally, the granularity of change conforms to the following rules:

Where d is the granularity of change, c is the frame length, a is the first HARQ timing duration, and b is the second HARQ timing duration.

Optionally, the radio frame determined by the processor 300 is further related to the subframe interval, where the subframe interval is an interval between any two adjacent uplink subframes in the included uplink subframe in the change granularity, and the subframe interval is Related to frame length and granularity of change.

Optionally, the first HARQ timing duration is 2, and when the second HARQ timing duration is 3, the frame length of the radio frame determined by the processor 300 is 12;

The radio frame determined by the processor 300 includes 0 uplink subframes and 12 downlink subframes; or

The radio frame determined by the processor 300 includes 6 uplink subframes and 6 downlink subframes, and any two uplink subframes of the 6 uplink subframes are not adjacent to each other, and any two of the 6 downlink subframes are different. The downlink subframes are not adjacent; or

The radio frame determined by the processor 300 includes 12 uplink subframes and 0 downlink subframes.

Optionally, the first HARQ timing duration is 2, and when the second HARQ timing duration is 4, the frame length of the radio frame determined by the processor 300 is 8.

The radio frame determined by the processor 300 includes 0 uplink subframes and 8 downlink subframes; or

The radio frame determined by the processor 300 includes two uplink subframes and six downlink subframes, and two downlink subframes are separated by three downlink subframes, and the six downlink subframes are divided into two downlink subframes, and two groups of downlinks. The subframes include three downlink subframes, and the two downlink subframes are separated by one uplink subframe; or

The radio frame determined by the processor 300 includes four uplink subframes and four downlink subframes, and any two uplink subframes of the four uplink subframes are not adjacent, and any two of the four downlink subframes are downlink. Subframes are not adjacent; or

The radio frame determined by the processor 300 includes four uplink subframes and four downlink subframes, and the four uplink subframes include two uplink subframes, and the two uplink subframes include two uplink subframes and two uplink subframes. The two downlink subframes include two downlink subframes, and the two downlink subframes include two downlink subframes, and the two downlink subframes are not adjacent to each other; or

The radio frame determined by the processor 300 includes six uplink subframes and two downlink subframes, and the six uplink subframes include two uplink subframes, and the two uplink subframes include three uplink subframes and two uplink subframes. 1 downlink subframe is separated, and 2 downlink subframes are not adjacent; or

The radio frame determined by the processor 300 includes 8 uplink subframes and 0 downlink subframes.

Optionally, the first HARQ timing duration is 3, and when the second HARQ timing duration is 4, the frame length of the radio frame determined by the processor 300 is 24;

The radio frame determined by the processor 300 includes 0 uplink subframes and 24 downlink subframes; or

The radio frame determined by the processor 300 includes 12 uplink subframes and 12 downlink subframes, and any two uplink subframes of the 12 uplink subframes are not adjacent, and any two of the 12 downlink subframes are different. The downlink subframes are not adjacent; or

The radio frame determined by the processor 300 includes 24 uplink subframes and 0 downlink subframes.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although a preferred embodiment of the invention has been described, one of ordinary skill in the art will recognize Additional changes and modifications to these embodiments can be made in the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims (26)

A data communication method, comprising: Determining a radio frame, where a frame length of the radio frame is related to a first hybrid automatic repeat request HARQ timing duration, and an uplink and downlink subframe ratio of the radio frame is related to the frame length; The data is transmitted or received using a determined radio frame structure. The method of claim 1 wherein the frame length of the radio frame is equal to the product of the first HARQ timing duration and two. The method according to claim 2, wherein the uplink-downlink subframe ratio is m: (nm), the m is the number of uplink subframes, and the (nm) is the number of downlink subframes. The m is an integer greater than or equal to 1, and less than or equal to the frame length. The method according to claim 2 or 3, wherein when the first HARQ timing duration is 2, the frame length of the radio frame is 4; The radio frame includes 0 uplink subframes and 4 downlink subframes; or The radio frame includes one uplink subframe and three downlink subframes; or The radio frame includes two uplink subframes and two downlink subframes; or The radio frame includes three uplink subframes and one downlink subframe; or The radio frame includes four uplink subframes and zero downlink subframes. The method according to claim 3, wherein when the first HARQ timing duration is 3, the frame length of the radio frame is 6; The radio frame includes 0 uplink subframes and 6 downlink subframes; or The radio frame includes one uplink subframe and five downlink subframes; or The radio frame includes two uplink subframes and four downlink subframes; or The radio frame includes three uplink subframes and three downlink subframes; or The radio frame includes four uplink subframes and two downlink subframes; or The radio frame includes five uplink subframes and one downlink subframe; or The radio frame includes 6 uplink subframes and 0 downlink subframes. The method according to claim 3, wherein when the first HARQ timing duration is 4, the frame length of the radio frame is 8; The radio frame includes 0 uplink subframes and 8 downlink subframes; or The radio frame includes one uplink subframe and seven downlink subframes; or The radio frame includes two uplink subframes and six downlink subframes; or The radio frame includes three uplink subframes and five downlink subframes; or The radio frame includes four uplink subframes and four downlink subframes; or The radio frame includes five uplink subframes and three downlink subframes; or The radio frame includes 6 uplink subframes and 2 downlink subframes; or The radio frame includes 7 uplink subframes and 1 downlink subframe; or The radio frame includes 8 uplink subframes and 0 downlink subframes. The method of claim 1 wherein said frame length of said radio frame is equal to a least common multiple of said first product and said second product; The first product is equal to a product of the first HARQ timing duration and 2; The second product is equal to the product of the second HARQ timing duration and two. The method according to claim 7, wherein the uplink-downlink subframe ratio is related to a change granularity, the change granularity is positively related to the frame length, negatively related to the first HARQ timing duration, and Describe the second HARQ timing duration; The granularity of the change is specifically the minimum number of uplink subframes that need to be added at one time when the uplink subframe is added to the radio frame. The method of claim 8 wherein said varying granularity conforms to the following rules:

Where d is the granularity of change, c is the frame length, a is the first HARQ timing duration, and b is the second HARQ timing duration. The method according to any one of claims 7 to 9, wherein the radio frame is further related to a subframe interval, and the subframe interval is any one of the uplink subframes included in the change granularity. An interval between two adjacent uplink subframes, the subframe interval being related to the frame length and the granularity of the change. The method according to any one of claims 7 to 10, wherein the first HARQ timing duration is 2, and when the second HARQ timing duration is 3, the frame length of the radio frame is 12; The radio frame includes 0 uplink subframes and 12 downlink subframes; or The radio frame includes six uplink subframes and six downlink subframes, and any two uplink subframes of the six uplink subframes are not adjacent to each other, and any two of the six downlink subframes are not adjacent. Different downlink subframes are not adjacent; or The radio frame includes 12 uplink subframes and 0 downlink subframes. The method according to any one of claims 7 to 10, wherein the first HARQ timing duration is 2, and when the second HARQ timing duration is 4, the frame length of the radio frame is 8. The radio frame includes 0 uplink subframes and 8 downlink subframes; or The radio frame includes two uplink subframes and six downlink subframes, and the two uplink subframes are separated by three downlink subframes, and the six downlink subframes are divided into two groups of downlink subframes. The two sets of downlink subframes include three downlink subframes, and the two sets of downlink subframes are separated by one uplink subframe; or The radio frame includes four uplink subframes and four downlink subframes, and any two of the four uplink subframes are not adjacent to each other, and any two of the four downlink subframes are not adjacent. The downlink subframes are not adjacent to each other; or The radio frame includes four uplink subframes and four downlink subframes, and the four uplink subframes include two uplink subframes, and the two uplink subframes each include two uplink subframes. The uplink sub-frames are not adjacent to each other, and the four downlink sub-frames include two downlink sub-frames, and the two sets of downlink sub-frames each include two downlink sub-frames, and the two sets of downlink sub-frames are not adjacent to each other. ;or The radio frame includes six uplink subframes and two downlink subframes, and the six uplink subframes include two uplink subframes, and the two uplink subframes each include three uplink subframes. The uplink subframes are separated by one downlink subframe, and the two downlink subframes are not adjacent; or The radio frame includes 8 uplink subframes and 0 downlink subframes. Method according to any of claims 7-10, wherein said first HARQ The timing duration is 3, and when the second HARQ timing duration is 4, the frame length of the radio frame is 24; The radio frame includes 0 uplink subframes and 24 downlink subframes; or The radio frame includes 12 uplink subframes and 12 downlink subframes, and any two of the 12 uplink subframes are not adjacent to each other, and any two of the 12 downlink subframes Different downlink subframes are not adjacent; or The radio frame includes 24 uplink subframes and 0 downlink subframes. A data communication device, comprising: a determining module, configured to determine a radio frame, where a frame length of the radio frame is related to a first hybrid automatic repeat request HARQ timing duration, and an uplink and downlink subframe ratio of the radio frame is related to the frame length; And a communication module, configured to send or receive data by using a determined radio frame structure. The apparatus according to claim 14, wherein the frame length of the radio frame determined by the determining module is equal to the product of the first HARQ timing duration and 2. The apparatus according to claim 15, wherein the uplink and downlink subframe ratio of the radio frame determined by the determining module is m: (nm), and the m is the number of uplink subframes, and the (nm) For the number of downlink subframes, the m is an integer greater than or equal to 0 and less than or equal to the frame length. The apparatus according to claim 15 or 16, wherein when the first HARQ timing duration is 2, the frame length of the radio frame determined by the determining module is 4; The radio frame determined by the determining module includes 0 uplink subframes and 4 downlink subframes; or The radio frame determined by the determining module includes one uplink subframe and three downlink subframes; or The radio frame determined by the determining module includes two uplink subframes and two downlink subframes; or The radio frame determined by the determining module includes three uplink subframes and one downlink subframe; or The radio frame determined by the determining module includes four uplink subframes and zero downlink subframes. The apparatus according to claim 16, wherein when the first HARQ timing duration is 3, the frame length of the radio frame determined by the determining module is 6; The radio frame determined by the determining module includes 0 uplink subframes and 6 downlink subframes; or The radio frame determined by the determining module includes one uplink subframe and five downlink subframes; or The radio frame determined by the determining module includes two uplink subframes and four downlink subframes; or The radio frame determined by the determining module includes three uplink subframes and three downlink subframes; or The radio frame determined by the determining module includes four uplink subframes and two downlink subframes; or The radio frame determined by the determining module includes five uplink subframes and one downlink subframe; or The radio frame determined by the determining module includes 6 uplink subframes and 0 downlink subframes. The apparatus according to claim 16, wherein when the first HARQ timing duration is 4, the frame length of the radio frame determined by the determining module is 8; The radio frame determined by the determining module includes 0 uplink subframes and 8 downlink subframes; or The radio frame determined by the determining module includes one uplink subframe and seven downlink subframes; or The radio frame determined by the determining module includes two uplink subframes and six downlink subframes; or The radio frame determined by the determining module includes three uplink subframes and five downlink subframes; or The radio frame determined by the determining module includes four uplink subframes and four downlink subframes; or The radio frame determined by the determining module includes five uplink subframes and three downlink subframes; or The radio frame determined by the determining module includes 6 uplink subframes and 2 downlink subframes; or The radio frame determined by the determining module includes 7 uplink subframes and 1 downlink subframe; or The radio frame determined by the determining module includes 8 uplink subframes and 0 downlink subframes. The apparatus according to claim 14, wherein the frame length of the radio frame determined by the determining module is equal to the least common multiple of the first product and the second product; The first product is equal to a product of the first HARQ timing duration and 2; The second product is equal to the product of the second HARQ timing duration and two. The apparatus according to claim 20, wherein the uplink and downlink subframe ratio of the radio frame determined by the determining module is related to a granularity of change, the granularity of the change is positively related to the frame length, and the negative correlation is related to the a first HARQ timing duration and the second HARQ timing duration; The granularity of the change is specifically the minimum number of uplink subframes that need to be added at one time when the uplink subframe is added to the radio frame. The apparatus of claim 21 wherein said varying granularity conforms to the following rules:

Where d is the granularity of change, c is the frame length, a is the first HARQ timing duration, and b is the second HARQ timing duration. The apparatus according to any one of claims 20 to 22, wherein the radio frame determined by the determining module is further related to a subframe interval, where the subframe interval is an uplink subframe included in the granularity of change An interval between any two adjacent uplink subframes, the subframe interval being related to the frame length and the granularity of the change. The apparatus according to any one of claims 20 to 23, wherein the first HARQ timing duration is 2, and when the second HARQ timing duration is 3, the frame length of the radio frame determined by the determining module Is 12; The radio frame determined by the determining module includes 0 uplink subframes and 12 downlink subframes; or The radio frame determined by the determining module includes six uplink subframes and six downlink subframes, and any two uplink subframes of the six uplink subframes are not adjacent to each other, and the six downlink subframes are not adjacent to each other. Any two different downlink subframes are not adjacent; or The radio frame determined by the determining module includes 12 uplink subframes and 0 downlink subframes. The apparatus according to any one of claims 20 to 23, wherein the first HARQ timing duration is 2, and when the second HARQ timing duration is 4, the frame length of the radio frame determined by the determining module 8; The radio frame determined by the determining module includes 0 uplink subframes and 8 downlink subframes; or The radio frame determined by the determining module includes two uplink subframes and six downlink subframes, and the two uplink subframes are separated by three downlink subframes, and the six downlink subframes are divided into two groups of downlink subframes. a frame, the two sets of downlink subframes each include three downlink subframes, and the two sets of downlink subframes are separated by one uplink subframe; or The radio frame determined by the determining module includes four uplink subframes and four downlink subframes, and any two uplink subframes of the four uplink subframes are not adjacent to each other, and the four downlink subframes are not adjacent to each other. Any two downlink subframes are not adjacent; or The radio frame determined by the determining module includes four uplink subframes and four downlink subframes, and the four uplink subframes include two uplink subframes, and the two uplink subframes include two uplink subframes. The two downlink sub-frames are not adjacent to each other, and the four downlink sub-frames include two downlink sub-frames, and the two sets of downlink sub-frames each include two downlink sub-frames, and the two sets of downlink sub-frames Not adjacent; or The radio frame determined by the determining module includes six uplink subframes and two downlink subframes, and the six uplink subframes include two uplink subframes, and the two uplink subframes include three uplink subframes. The two uplink subframes are separated by one downlink subframe, and the two downlink subframes are not adjacent; or The radio frame determined by the determining module includes 8 uplink subframes and 0 downlink subframes. The apparatus according to any one of claims 20 to 23, wherein the first HARQ timing duration is 3, and when the second HARQ timing duration is 4, the frame length of the radio frame determined by the determining module 24; The radio frame determined by the determining module includes 0 uplink subframes and 24 downlink subframes; or The radio frame determined by the determining module includes 12 uplink subframes and 12 downlink subframes, and any two uplink subframes of the 12 uplink subframes are not adjacent to each other, and the 12 downlink subframes are not adjacent to each other. Any two different downlink subframes are not adjacent; or The radio frame determined by the determining module includes 24 uplink subframes and 0 downlink subframes.

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