WO2015018001A1

WO2015018001A1 - Data transmission method and device

Info

Publication number: WO2015018001A1
Application number: PCT/CN2013/080983
Authority: WO
Inventors: 罗超; 游月意
Original assignee: 华为技术有限公司
Priority date: 2013-08-07
Filing date: 2013-08-07
Publication date: 2015-02-12
Also published as: CN104521258A

Abstract

Provided are a data transmission method and device, the method comprising: a data receiving and transmitting device judges whether the Nth fallback period contains a radio block period where a selected carrier determined by a set carrier selection algorithm is a single carrier, the fallback periods consisting of i radio block periods, and both i and N being positive integers; if yes, the data receiving and transmitting device cancels the periodic fallback operation in the Nth fallback period, and, in the ith radio block period of the Nth fallback period, uses the selected carrier for the ith radio block period determined by the set carrier selection algorithm to transmit or receive data; if not, the data receiving and transmitting device performs the periodic fallback operation in the Nth fallback period. The above method reduces the number of fallbacks to a single carrier and increases the peak throughput.

Description

TECHNICAL FIELD The present invention relates to communications technologies, and in particular, to a data transmission method and device.

Background technique

Downlink multi-carrier (DLMC) technology allows the network to simultaneously allocate multiple downlink carrier resources to the same terminal. The terminal can receive signals on multiple carriers simultaneously using a wideband receiver. In the downlink multi-carrier technology, when data transmission is performed by using frequency hopping, the maximum carrier spacing between multiple carriers allocated by the network is changed. Since the maximum receiver bandwidth of the terminal is fixed, each wireless In the block cycle, there may be cases where the burst burst on some carriers cannot be received because the maximum carrier interval is greater than the maximum value of the receiver bandwidth. For example, the bandwidth of the terminal receiver is 30, and the three carriers on a burst are respectively hopped to an absolute radio frequency channel number (ARFCN) of 35, 45, 70, and the maximum carrier spacing of the shell is 35, exceeding The receiver bandwidth of the terminal cannot receive data on the three carriers at the same time. When the above situation occurs, the base station selects a part of the carrier to transmit data, and the terminal accordingly listens to the downlink data block only in that part of the carrier. Gp, both the base station and the terminal select the carrier through the carrier selection algorithm. Broadband receivers are more susceptible to in-band blocking than narrowband receivers (i.e., receivers that receive only one carrier). To this end, the DLMC technology introduces the concept of "fal lback to single-carrier mode", that is, the network side device and the terminal periodically fall back to the single carrier mode according to a certain rule. However, the current processing method sacrifices a certain peak throughput performance for the data transmission of the network side device and the terminal, that is, the peak throughput is reduced.

Summary of the invention

In view of this, an embodiment of the present invention provides a data transmission method and device to improve peak value. Throughput rate. In a first aspect, the embodiment of the present invention provides a data transmission method, including: determining, by a data transceiver, whether a radio block period of a single carrier determined by a set carrier selection algorithm is a single carrier in a Nth backoff period, The back-off period is composed of i radio block periods, i and N are both positive integers; if yes, the data transceiver device cancels the periodic back-off operation in the Nth back-off period, Transmitting or receiving data using the selected carrier of the i-th radio block period determined by the set carrier selection algorithm in the i-th radio block period of the N back-off periods; if not, the data transceiver performs A periodic backoff operation in the Nth backoff period. With reference to the first aspect, in a first possible implementation manner of the first aspect, the data transceiver apparatus determines whether, in the Nth backoff period, the selected carrier that is determined by the set carrier selection algorithm is a single carrier. The block period includes: determining, by the data transceiver, whether the selected carriers of each radio block period determined by the set carrier selection algorithm in the Nth backoff period are multiple carriers, and if yes, determining There is no radio block period in which the selected carrier is a single carrier in the Nth backoff period. If not, it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. With reference to the first aspect, in a second possible implementation manner of the first aspect, the determining, by the Nth back-off period, whether the selected carrier that is determined by the set carrier selection algorithm is a radio carrier period of a single carrier, includes And determining, by the data transceiver device, that all the radios except the i th radio block period in the Nth backoff period, if the selected carrier of the i th radio block period is multiple carriers Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the block period, and if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, If not, determining that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period; and/or; the data transceiver device determines that the selected carrier of the i th radio block period is A single carrier determines that there is a radio block period in which the selected carrier is a single carrier during the Nth backoff period. In conjunction with the first aspect, in a third possible implementation of the first aspect, The determining whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period includes:

Determining, by the data transceiver, whether there is a selected carrier determined by the set carrier selection algorithm as a single carrier in all radio block periods except the i-th radio block period in the Nth backoff period a radio block period, if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, and if not, determining that there is no selected carrier in the Nth backoff period The radio block period of a single carrier. In conjunction with the first aspect, or any one of the first to third possible implementations, in a fourth possible implementation of the first aspect,

Performing the periodic backoff operation in the Nth backoff period includes: using a preset single carrier, or using the location in the ith radio block period of the Nth backoff period Any one of the selected carriers of the i-th radio block period receives or transmits data.

In a second aspect, an embodiment of the present invention provides a data transceiver apparatus, including:

a determining module, configured to determine, in the Nth back-off period, whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier, where the back-off period is composed of i radio block periods, i and N a positive integer; a fallback module, configured to cancel a periodic backoff operation in the Nth backoff period if the judgment result of the determining module is yes, in the Nth backoff period Transmitting or receiving data using the selected carrier of the i-th radio block period determined by the set carrier selection algorithm in the i-th radio block period; if the determination result of the judging module is no, performing the Periodic rollback operation within N backoff periods. With reference to the second aspect, in a first possible implementation manner of the second aspect, the determining module is specifically configured to:

Determining whether the selected carrier of each radio block period determined by the set carrier selection algorithm in the Nth backoff period is a plurality of carriers, and if yes, determining that the selected carrier does not exist in the Nth backoff period The selected carrier is a radio block period of a single carrier, and if not, it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. In conjunction with the second aspect, in a second possible implementation of the second aspect, The determining module is specifically configured to: if it is determined that the selected carrier of the ith radio block period is multiple carriers, determine that the

Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in all the radio block periods except the i-th radio block period in the N back-off periods, and if yes, it is determined in The Nth backoff period is a radio block period in which the selected carrier is a single carrier, and if not, determining that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period; and/or If it is determined that the selected carrier of the ith radio block period is a single carrier, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period. With reference to the second aspect, in a third possible implementation manner of the second aspect, the determining module is specifically configured to: determine, in the Nth backoff period, other than the ith radio block period Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in all radio block periods, and if yes, determining that there is a radio block in which the selected carrier is a single carrier in the Nth backoff period The period, if not, determines that there is no radio block period in which the selected carrier is a single carrier during the Nth backoff period. With reference to the second aspect, or any one of the first to third possible implementation manners, in the fourth possible implementation manner of the second aspect, the back-off module is specifically configured to: During the i-th radio block period of the back-off period, data is received or transmitted using a preset single carrier, or using any one of the selected carriers of the i-th radio block period. With reference to the second aspect, or any one of the first to fourth possible implementation manners, in a fifth possible implementation manner of the second aspect, the device is a base station or a terminal. In a third aspect, an embodiment of the present invention provides a data transceiver, including: a transceiver, configured to send or receive data, and a processor, configured to determine whether a carrier selection algorithm is determined by using a set carrier during an Nth backoff period The selected carrier is a radio block period of a single carrier, and the backoff period is composed of i radio block periods, and i and N are positive integers; The processor is further configured to: if the determination result is yes, cancel the periodic backoff operation in the Nth backoff period, and indicate in the ith radio block period of the Nth backoff period The transceiver transmits or receives data using a selected carrier of the i-th radio block period determined by the set carrier selection algorithm; if the determination result is no, performing a period within the Nth back-off period Sexual fallback operation. With reference to the third aspect, in a first possible implementation manner of the third aspect, the processor is specifically configured to: determine, by using the set carrier selection algorithm, each radio block in the Nth back-off period Whether the selected carrier of the period is a plurality of carriers, if yes, determining that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period, and if not, determining that the Nth fallback is performed There is a radio block period in which the selected carrier is a single carrier. With reference to the third aspect, in a second possible implementation manner of the third aspect, the processor is specifically configured to: if it is determined that the selected carrier of the ith radio block period is multiple carriers, Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in all radio block periods except the i-th radio block period in the Nth backoff period, and if yes, determining In the Nth back-off period, a radio block period in which the selected carrier is a single carrier, and if not, determining that there is no radio block period in which the selected carrier is a single carrier in the Nth back-off period; and Or if it is determined that the selected carrier of the ith radio block period is a single carrier, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period. With reference to the third aspect, in a third possible implementation manner of the third aspect, the processor is specifically configured to: determine, in the Nth backoff period, other than the ith radio block period Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in all radio block periods, and if yes, determining that there is a radio block in which the selected carrier is a single carrier in the Nth backoff period The period, if not, determines that there is no radio block period in which the selected carrier is a single carrier during the Nth backoff period. Combining the third aspect or any of its first to third possible implementations, at a third party In the fourth possible implementation of the face,

The processor is specifically configured to: in the ith radio block period of the Nth backoff period, instruct the transceiver to use a preset single carrier, or use the ith radio block period Select any carrier in the carrier to receive or transmit data. With reference to the third aspect, or any one of the first to fourth possible implementation manners, in a fifth possible implementation manner of the third party, the data transceiver is a terminal or a base station. In a fourth aspect, an embodiment of the present invention provides a computer program product, comprising a computer readable medium, the readable medium comprising a set of program codes, a method for performing the data transmission according to any one of the foregoing. The method and device for data transmission provided by the embodiment of the present invention determine whether a carrier selected by a preset carrier selection algorithm is a radio block period of a single carrier in a back-off period, and if yes, cancel the period in the back-off period. The periodic rollback operation reduces the number of times to fall back from the downlink multi-carrier to the single carrier, thereby increasing the peak throughput.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following drawings will be briefly described in the description of the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying creative labor.

FIG. 1 is a flowchart of a method for data transmission according to an embodiment of the present invention;

2 is a schematic diagram of a method of data transmission shown in FIG. 1;

FIG. 3 is a schematic diagram of a frame structure applied in a method for data transmission according to another embodiment of the present invention; FIG.

FIG. 4 is a schematic diagram of a downlink multi-carrier mode in a method for data transmission according to another embodiment of the present invention; FIG.

FIG. 5 is a schematic diagram of a downlink multi-carrier mode in a method for data transmission according to another embodiment of the present invention; FIG. FIG. 6 is a schematic diagram of a downlink multi-carrier mode in a method for data transmission according to another embodiment of the present invention; FIG.

FIG. 7 is a schematic structural diagram of a data transceiver apparatus according to another embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a data transceiver apparatus according to another embodiment of the present invention.

The present invention will be further described in detail with reference to the accompanying drawings, in which FIG. An embodiment. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. FIG. 1 is a flowchart of a method for data transmission according to an embodiment of the present invention. The method shown in this embodiment may be an operation process of a network side device, such as a base station, or may be an operation process of the terminal side, and specifically includes:

Step 11: The data transceiver device determines whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period, where the backoff period is composed of i radio block periods, i and N is a positive integer. The data transceiver device may be a base station or a terminal such as a mobile phone. The rollback period is the time interval between two consecutive periodic rollback operations. Specifically, as shown in FIG. 2, the rollback period is T, that is, the backoff period is two adjacent ones satisfying the mode. The time interval between TDMA frames. The periodic rollback may be performed by an "implicit fallback" mode, that is, the network side device and the terminal appoint a time division multiple access (TDMA) frame number mode, where the TDMA frame that satisfies the mode is located. The radio block is rolled back to the single-carrier mode, that is, it is periodically rolled back to a carrier to send and receive data. The one carrier can be preset, or can be determined by the rules agreed by the network side device and the terminal, and is not limited herein. . The preset carrier selection algorithm may be one or a plurality of carrier selection algorithms pre-agreed by the network side device and the terminal, and may be preset in the network side device or the terminal, or may be pre-configured to the network side device through the input device. Or terminal, belonging to the prior art, and will not be described here. Step 12: If yes, the data transceiver device cancels the periodic backoff operation in the Nth backoff period, and uses the setting in the ith radio block period of the Nth backoff period. The selected carrier of the ith radio block period determined by the carrier selection algorithm transmits or receives data; if not, the data transceiver performs a periodic backoff operation within the Nth backoff period. Specifically, as shown in FIG. 2, wherein each vertical square represents a radio block period, and each horizontal small square represents a carrier. After the network and the terminal perform the periodic backoff operation in the N-1th rollback period in the N-1th backoff period, the network side device and the terminal calculate the Nth through the same carrier selection algorithm. The carrier in each radio block period in the backoff period determines whether there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. If only one carrier is selected in the at least one radio block period in the Nth backoff period, the network side device and the terminal cancel the periodic backoff operation in the Nth backoff period, and still follow the carrier selection algorithm. The selected carrier transmits data. If the Nth rollback period does not exist in any one of the radio block periods, the network side device and the terminal perform the periodic rollback operation in the Nth rollback period to force the rollback. To single carrier mode. For example, the data transceiver device determines whether the radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period may include: the data transceiver determines the Nth Whether the selected carrier of each radio block period determined by the set carrier selection algorithm in the backoff period is a plurality of carriers, and if yes, determining that there is no selected carrier in the Nth backoff period is a single carrier The radio block period, if not, determines that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. For example, the determining whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period may include: the data transceiver device determining the ith wireless If the selected carrier of the block period is a plurality of carriers, determining whether, in the Nth backoff period, all the radio block periods except the i th radio block period are determined by the set carrier selection algorithm The selected carrier is a radio block period of a single carrier, and if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, and if not, determining in the Nth backoff period There is no selection load The wave is a radio block period of a single carrier; and/or; if the data transceiver device determines that the selected carrier of the ith radio block period is a single carrier, determining that a selected carrier exists in the Nth backoff period Is the radio block period of a single carrier. Exemplarily, the determining whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period may include:

Determining, by the data transceiver, whether there is a selected carrier determined by the set carrier selection algorithm as a single carrier in all radio block periods except the i-th radio block period in the Nth backoff period a radio block period, if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, and if not, determining that there is no selected carrier in the Nth backoff period The radio block period of a single carrier. For example, the performing the periodic backoff operation in the Nth backoff period may include: using a preset single in the ith radio block period of the Nth backoff period The carrier, or any one of the selected carriers using the ith radio block period, receives or transmits data. The method shown in the foregoing embodiment cancels the periodic blockback operation in the backoff period by determining whether there is a radio block period in which the selected carrier is a single carrier in a backoff period, and there is a radio block period of a single carrier. In this manner, the number of times of returning from the downlink multi-carrier to the single carrier in the prior art is reduced, and the throughput performance is further improved compared with the prior art. The method of data transmission will be further described in detail below by taking FIG. 3 to FIG. 6 as an example. FIG. 3 is a schematic diagram of a frame structure applied in a method for data transmission according to another embodiment of the present invention, and FIG. 4 is a schematic diagram of a downlink multi-carrier mode in a method for data transmission according to another embodiment of the present invention. In this embodiment, the periodic backoff in the Nth backoff period is reserved, and the periodic backoff in the N+1th backoff period is canceled.

The BCTB11 in the 52-multiframe frame structure in the single carrier mode shown in FIG. 3 represents 12 radio block periods in 52 multiframes, and can be used for transmitting data or signaling. The packet timing advanced control channel (PTCCH) is used to transmit the timing advance information to the terminal. X is an idle frame. In Figure 4, several carriers are selected by a carrier selection algorithm in one radio block period, and there are several small squares that identify the period of the radio block. For example, in the Nth back-off period, the logo has There are four small squares of B3, which means that there are four carriers in the radio block period B3. In the following embodiments, it is assumed that the number of downlink carriers is at most 4. The carrier selection result that the carrier selection algorithm may output in different radio block periods is a wide four carriers.

It is assumed that the periodic backoff in the N-1th backoff period is still forced to fall back to the single carrier mode. In the backoff period in the Nth backoff period of 52 frames, the network side devices in other radio block periods And the terminal outputs the corresponding carrier according to the carrier selection algorithm.

As can be seen from Figure 4, there is one small square with B6 identified in the Nth back-off period, indicating that the radio block period "B6" in the Nth back-off period selects a single carrier according to the carrier selection algorithm. Then, the periodic backoff in the Nth backoff period can be canceled, and the last radio block period B2 in the Nth backoff period can use the four carriers obtained by the carrier selection algorithm to transmit or receive data.

It should be noted that the backoff period is not limited to the value given in FIG. 4, and may be other values, such as a multiple of 52 multiple frames, etc., and details are not described herein again. FIG. 5 is a schematic diagram of a downlink multi-carrier mode in a method for data transmission according to another embodiment of the present invention.

In this embodiment, the periodic backoff in the N-1th backoff period and the periodic backoff in the N backoff periods are canceled.

Specifically, it is assumed that the periodic backoff in the N-1th backoff period is canceled, and in the Nth backoff period of 52 frames, the network side device and the terminal select the carrier by the carrier selection algorithm in other radio block periods. .

As can be seen from FIG. 5, there is one small square labeled B5 in the Nth back-off period, indicating that the radio block period "B5" in the Nth back-off period is a single carrier selected according to the carrier selection algorithm. . Then, the periodic backoff in the Nth backoff period is canceled, and the carrier selected by the carrier selection algorithm transmits data. For example, the last radio block period B2 in the Nth backoff period uses 2 carriers obtained by the carrier selection algorithm to transmit or receive data. FIG. 6 is a schematic diagram of a downlink multi-carrier mode in a method for data transmission according to another embodiment of the present invention.

In this embodiment, the periodic backoff operation in the N-1th rollback period is canceled, and the Nth back The periodic rollback operation within the retreat period is preserved.

As shown in FIG. 6, it is assumed that the network side device and the terminal cancel the periodic backoff in the N-1th backoff period, and in the Nth backoff period of 52 frames, the network side devices in other wireless block periods and The terminals select carriers by a carrier selection algorithm.

As can be seen from FIG. 6, in the Nth backoff period of 52 frames, all the radio block periods except the last radio block period B2 do not have the radio selected by the carrier selection algorithm that the selected carrier is a single carrier. Block cycle. Then, since the selected carrier determined by the carrier selection algorithm in the last radio block period B2 is a single carrier, the periodic backoff operation in the Nth backoff period can be performed, and the fallback to the single carrier mode is forced. The data may be transmitted or received using the selected carrier of the last radio block period B2 determined by the set carrier selection algorithm. If the selected carrier determined by the carrier selection algorithm of the radio block period B2 is a plurality of carriers, then the data transceiver must perform a periodic backoff operation in the Nth backoff period to forcibly fall back to the single carrier mode. Compared with the existing downlink multi-load back-off to single-carrier technology, the method shown in the foregoing embodiment of the present invention cancels the back when a carrier selected by the carrier selection algorithm is a radio block period of a single carrier in a back-off period. The periodic rollback operation in the retreat period reduces the number of times to fall back to a single carrier and improves the peak throughput rate. FIG. 7 is a schematic structural diagram of a data transceiver apparatus according to another embodiment of the present invention. The device shown in this embodiment is used to implement the method shown in FIG. 1, and may be a base station and a terminal, and includes: a determining module 71 and a backing module 72. The determining module 71 is configured to determine whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period, where the backoff period is composed of i radio block periods, i and N is a positive integer; the back-off module 72 is configured to cancel the periodic back-off operation in the Nth back-off period when the determination result of the determining module 71 is YES, in the Nth back Sending or receiving data using the selected carrier of the ith radio block period determined by the set carrier selection algorithm in the ith radio block period of the rewinding period; if the judgment result of the judging module 71 is no, Performing a periodic rollback operation in the Nth rollback period. Exemplarily, the determining module 71 is specifically configured to: Determining whether the selected carrier of each radio block period determined by the set carrier selection algorithm in the Nth backoff period is a plurality of carriers, and if yes, determining that the selected carrier does not exist in the Nth backoff period The selected carrier is a radio block period of a single carrier, and if not, it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. Exemplarily, the determining module 71 is specifically configured to: if it is determined that the selected carrier of the ith radio block period is multiple carriers, determine that the i th wireless in the Nth backoff period Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in all radio block periods except the block period, and if so, determining that the selected carrier is present in the Nth backoff period a radio block period of a single carrier, if not, determining that there is no radio block period in which the selected carrier is a single carrier during the Nth backoff period; and/or if the selected carrier of the i th radio block period is determined If it is a single carrier, it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. Exemplarily, the determining module 71 is specifically configured to: determine whether there is carrier selection by using the set in all radio block periods except the ith radio block period in the Nth backoff period The selected carrier determined by the algorithm is a radio block period of a single carrier, and if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, and if not, determining in the Nth back There is no radio block period in which the selected carrier is a single carrier within the retreat period. Exemplarily, the back-off module 72 is specifically configured to: use a preset single carrier, or use the ith radio block in the ith radio block period of the Nth back-off period Any carrier in the selected carrier of the period receives or transmits data. FIG. 8 is a schematic structural diagram of a data transceiver apparatus according to another embodiment of the present invention. The apparatus shown in this embodiment is used to implement the method shown in FIG. 1. The base station and the terminal may include: a transceiver 81, configured to send or receive data, and a processor 82, configured to determine the Nth backoff period. Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier, the backoff period is composed of i radio block periods, i and N are both positive integers; the processor 82 is also used If the result of the determination is yes, cancel the Nth backoff period Periodic rewinding operation, instructing the transceiver 81 to use the ith radio block period determined by the set carrier selection algorithm during an ith radio block period of the Nth backoff period Selecting a carrier to transmit or receive data; if the determination result is no, performing a periodic backoff operation in the Nth backoff period. Illustratively, the processor 82 is specifically configured to: determine whether the selected carrier of each radio block period determined by the set carrier selection algorithm in the Nth backoff period is multiple carriers, and if yes, Determining that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period, and if not, determining that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period.

Exemplarily, the processor 82 is specifically configured to: if it is determined that the selected carrier of the ith radio block period is multiple carriers, determine, in the Nth backoff period, the ith wireless Whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in all radio block periods except the block period, and if so, determining that the selected carrier is present in the Nth backoff period a radio block period of a single carrier, if not, determining that there is no radio block period in which the selected carrier is a single carrier during the Nth backoff period; and/or if the selected carrier of the i th radio block period is determined If it is a single carrier, it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. Exemplarily, the processor 82 is specifically configured to: determine whether there is carrier selection by the setting in all radio block periods except the ith radio block period in the Nth backoff period The selected carrier determined by the algorithm is a radio block period of a single carrier, and if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, and if not, determining in the Nth back There is no radio block period in which the selected carrier is a single carrier within the retreat period. Exemplarily, the processor 82 is specifically configured to: in the ith radio block period of the Nth backoff period, instruct the transceiver 81 to use a preset single carrier, or use the Any one of the selected carriers of the i-th radio block period receives or transmits data. The embodiment of the present invention further provides a computer program product, the computer program product comprising a computer readable medium, the readable medium comprising a first set of program codes, for performing the method shown in FIG. The step of: determining whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period, where the backoff period is composed of i radio block periods, i and N are both Is a positive integer;

If yes, canceling the periodic backoff operation in the Nth backoff period, using the determined by the set carrier selection algorithm in the ith radio block period of the Nth backoff period The selected carrier of the i-th radio block period transmits or receives data; if not, performs a periodic back-off operation in the Nth back-off period. Optionally, determining whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period includes: determining, by using the set carrier in the Nth backoff period Whether the selected carrier of each radio block period determined by the algorithm is a plurality of carriers, and if yes, determining that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period, and if not, determining The Nth backoff period has a radio block period in which the selected carrier is a single carrier. Optionally, the determining whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier in the Nth backoff period includes: determining that the selected carrier of the i th radio block period is Determining, by the plurality of carriers, whether there is a selected carrier determined by the set carrier selection algorithm as a single carrier in all radio block periods except the i-th radio block period in the Nth backoff period a radio block period, if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, and if not, determining that there is no selected carrier in the Nth backoff period a radio block period of a single carrier; and/or, if it is determined that the selected carrier of the i-th radio block period is a single carrier, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period . Optionally, the determining, in the Nth backoff period, whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier, includes: determining, in the Nth backoff period, Whether there is a selected carrier determined by the set carrier selection algorithm as a single carrier in all radio block periods except the i-th radio block period a radio block period, if yes, determining that a radio block period in which the selected carrier is a single carrier exists in the Nth backoff period, and if not, determining that there is no selected carrier in the Nth backoff period The radio block period of a single carrier. Optionally, the performing the periodic backoff operation in the Nth backoff period includes: using a preset single carrier in the ith radio block period of the Nth backoff period Or receiving or transmitting data using any one of the selected carriers of the i-th radio block period. Through the description of the above embodiments, it will be apparent to those skilled in the art that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. By way of example and not limitation, the computer readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used to carry or store an instruction or data structure. The desired program code and any other medium that can be accessed by the computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media. As used in the present invention, a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media. Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

Rights request

1. A method of data transmission, characterized in that it includes: the data transceiving device determines whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier within the Nth backoff period, the backoff period The back-off period consists of i radio block periods, i and N are both positive integers; if so, the data transceiver device cancels the periodic back-off operation in the N-th back-off period, and Use the selected carrier of the i-th radio block period determined by the set carrier selection algorithm to send or receive data in the i-th radio block period of the back-cycle period; if not, the data transceiver device executes the Periodic rollback operations within N rollback cycles.

2. The method according to claim 1, characterized in that, the data transceiver device determines whether there is a radio block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier within the Nth backoff period includes: The data transceiver device determines whether the selected carriers of each radio block period determined by the set carrier selection algorithm in the Nth backoff period are multiple carriers, and if so, determines whether the selected carriers in the Nth backoff period are multiple carriers. There is no radio block period in which the selected carrier is a single carrier within the period. If not, it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period.

3. The method according to claim 1, characterized in that, the determining whether there is a radio block period in which the selected carrier is a single carrier determined by the set carrier selection algorithm within the Nth backoff period includes: the data transmission and reception. If the device determines that the selected carrier of the i-th radio block period is multiple carriers, it determines whether there is a carrier in all radio block periods except the i-th radio block period in the N-th backoff period. If the selected carrier is a single carrier radio block period determined by the set carrier selection algorithm, if yes, then it is determined that there is a wireless block period in which the selected carrier is a single carrier within the Nth backoff period, if not, then it is determined There is no radio block period in which the selected carrier is a single carrier in the Nth backoff period; and/or; if the data transceiver device determines that the selected carrier in the i-th radio block period is a single carrier, then determine Within the Nth backoff period, there is a radio block period in which the selected carrier is a single carrier.

4. The method according to claim 1, wherein the determining whether there is a radio block period in which the selected carrier is a single carrier determined by the set carrier selection algorithm within the Nth backoff period includes:

The data transceiver device determines whether the selected carrier determined by the set carrier selection algorithm is a single carrier in all radio block periods except the i-th radio block period within the Nth backoff period. The radio block period of Radio block period for a single carrier.

5. The method according to any one of claims 1 to 4, characterized in that, performing the periodic rollback operation within the Nth rollback cycle includes:

In the i-th radio block period of the N-th back-off period, a preset single carrier is used, or any carrier among the selected carriers of the i-th radio block period is used to receive or transmit data.

6. A data transceiver device, characterized in that it includes: a judgment module, used to judge whether there is a wireless block period in which the selected carrier determined by the set carrier selection algorithm is a single carrier within the Nth backoff period, The backoff period consists of i wireless block periods, i and N are both positive integers; a backoff module, used to cancel the periodicity in the Nth backoff cycle if the judgment result of the judgment module is yes The rollback operation involves sending or receiving data using the selected carrier of the i-th radio block cycle determined by the set carrier selection algorithm in the i-th radio block cycle of the N-th rollback cycle; if If the judgment result of the judgment module is no, then the periodic rollback operation in the Nth rollback cycle is performed.

7. The device according to claim 6, wherein the determination module is specifically configured to: determine whether the selected carrier of each radio block period determined by the set carrier selection algorithm in the Nth backoff period is are multiple carriers. If yes, it is determined that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period. If not, it is determined that there is a selected carrier in the Nth backoff period. is the radio block period of a single carrier.

8. The device according to claim 6, characterized in that the determination module is specifically configured to: if it is determined that the selected carrier of the i-th radio block period is multiple carriers, determine whether Whether there is a radio block period in which the selected carrier is a single carrier determined by the set carrier selection algorithm in all radio block periods except the i-th radio block period within the N back-off periods, and if so, determine whether There is a radio block period in which the selected carrier is a single carrier in the Nth backoff period. If not, it is determined that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period; and/or If it is determined that the selected carrier of the i-th radio block period is a single carrier, it is determined that there is a radio block period in which the selected carrier is a single carrier within the N-th backoff period.

9. The device according to claim 6, characterized in that, the determination module is specifically configured to: determine whether in all wireless block periods except the i-th wireless block period within the N-th backoff period Whether there is a radio block period in which the selected carrier is a single carrier determined by the set carrier selection algorithm, if yes, then it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period, if not, Then it is determined that there is no radio block period in which the selected carrier is a single carrier within the Nth backoff period.

10. The device according to any one of claims 6 to 9, characterized in that the rollback module is specifically configured to: use the predetermined A single carrier is assumed, or data is received or transmitted using any one of the selected carriers of the i-th radio block period.

11. The device according to any one of claims 6-10, characterized in that the device is a base station or a terminal.

12. A data transceiver device, characterized in that it includes: a transceiver, used to send or receive data; a processor, used to determine whether there is a selected carrier determined by the set carrier selection algorithm within the Nth back-off period is the wireless block period of a single carrier, the back-off period consists of i wireless block periods, i and N are both positive integers; the processor is also configured to cancel the Nth if the judgment result is yes The periodic back-off operation within the back-off period instructs the transceiver to use the i-th radio determined by the set carrier selection algorithm within the i-th radio block period of the N-th back-off period. Select the carrier to send or receive data in the block period; if the judgment result is no, execute the cycle within the Nth back-off period. Periodic rollback operations.

13. The device according to claim 12, wherein the processor is specifically configured to: determine whether the selected carrier of each radio block period determined by the set carrier selection algorithm in the Nth backoff period is are multiple carriers. If yes, it is determined that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period. If not, it is determined that there is a selected carrier in the Nth backoff period. is the radio block period of a single carrier.

14. The device according to claim 12, characterized in that the processor is specifically configured to: if it is determined that the selected carrier of the i-th radio block period is multiple carriers, determine whether the selected carrier in the N-th fallback Whether there is a radio block period in which the selected carrier is a single carrier determined by the set carrier selection algorithm in all radio block periods except the i-th radio block period within the period, and if so, determine whether the selected carrier is a single carrier in the N-th radio block period. There is a radio block period in which the selected carrier is a single carrier within the backoff period. If not, it is determined that there is no radio block period in which the selected carrier is a single carrier in the Nth backoff period; and/or if it is determined that the selected carrier is a single carrier. If the selected carrier of the i-th radio block period is a single carrier, it is determined that there is a radio block period in which the selected carrier is a single carrier within the N-th backoff period.

15. The device according to claim 12, characterized in that the processor is specifically configured to: determine whether in all radio block periods except the i-th radio block period within the N-th backoff period Whether there is a radio block period in which the selected carrier is a single carrier determined by the set carrier selection algorithm, if yes, then it is determined that there is a radio block period in which the selected carrier is a single carrier in the Nth backoff period, if not, Then it is determined that there is no radio block period in which the selected carrier is a single carrier within the Nth backoff period.

16. The device according to any one of claims 12 to 15, wherein the processor is specifically configured to: within the i-th wireless block period of the N-th backoff period, instruct the The transceiver uses a preset single carrier, or uses any one of the selected carriers in the i-th radio block period to receive or send data.

17. The device according to any one of claims 12 to 16, characterized in that the data transceiving device is a terminal or a base station.

18. A computer program product, characterized in that it includes a computer-readable medium, said readable medium Program code, used to perform data transmission as described in any one of claims 1-5