CN109644088A

CN109644088A - Feedback method and equipment based on carrier wave polymerization

Info

Publication number: CN109644088A
Application number: CN201780049710.5A
Authority: CN
Inventors: 林亚男; 杨宁
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-03-03
Filing date: 2017-03-03
Publication date: 2019-04-16
Anticipated expiration: 2037-03-03
Also published as: CN109644088B; WO2018157407A1

Abstract

The application provides a kind of feedback method and equipment based on carrier wave polymerization, this method comprises: if terminal device determines that the data carried on M member carrier are identical, terminal device is according to the demodulation states of the data carried on each member carrier, determine feedback information, when there are the data being successfully demodulated in determining the data carried on each member carrier according to feedback information for the network equipment in feedback information, the data are not retransmitted, and M is greater than or equal to 2 positive integer；Terminal device determines that, for sending N number of target members' carrier wave of the feedback information in the M member carrier, N is the positive integer more than or equal to 1；Terminal device sends feedback information to the network equipment on each target members' carrier wave.Feedback method provided by the present application based on carrier wave polymerization, can be avoided the re-transmission to redundant data, improves the utilization rate of system resource.

Description

Feedback method and device based on carrier aggregation

Technical Field

The present embodiments relate to the field of communications, and in particular, to a feedback method and apparatus based on carrier aggregation.

Background

In a Carrier Aggregation (CA) scenario, a transmitting end may transmit and copy a Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) by using a Packet Data Convergence Protocol (PDCP) copy (Duplication) function of Dual Connectivity (DC). Specifically, data replication is performed from the PDCH layer, the same PDCP PDUs are respectively mapped to different Radio Link Control (RLC) entities (entities), and the RLC entities place the same data in different logical channels. The Medium Access Control (MAC) Entity schedules the duplicated data to different physical carriers by scheduling, so as to obtain frequency diversity gain and improve the reliability of data transmission.

The receiving end will receive the duplicated data on different physical carriers, and under a certain condition, the terminal equipment with one carrier channel condition successfully demodulates the data, and the terminal equipment with the other carrier channel condition fails to demodulate. According to the related art, a receiving end respectively performs hybrid automatic Repeat Request (HARQ) feedback, and when a transmitting end receives Negative Acknowledgement (NACK) information, the transmitting end retransmits data, which is equivalent to retransmitting redundant data, resulting in system resource waste.

Therefore, it is desirable to provide a feedback method to avoid the retransmission of redundant data and improve the utilization of system resources.

Technical problem

The application provides a feedback method and equipment based on carrier aggregation, which can avoid retransmission of redundant data and improve the utilization rate of system resources.

Technical solution

In a first aspect, a feedback method is provided, including: if the terminal equipment determines that the data carried on the M member carriers are the same, the terminal equipment determines feedback information according to the demodulation state of the data carried on each member carrier, the feedback information is used for not retransmitting the data when the network equipment determines that the successfully demodulated data exists in the data carried on each member carrier according to the feedback information, and M is a positive integer greater than or equal to 2; the terminal equipment determines N target component carriers used for sending the feedback information in the M component carriers, wherein N is a positive integer greater than or equal to 1; and the terminal equipment sends the feedback information to network equipment on each target member carrier in the N target member carriers.

According to the feedback method based on carrier aggregation, when the terminal device determines that the data carried on the plurality of component carriers are the same, the terminal device determines the feedback information according to the demodulation state of the data carried on each component carrier, so that the network device does not retransmit the data when determining that the successfully demodulated data exists in the data carried on each component carrier according to the feedback information. Therefore, the retransmission of redundant data can be avoided, and the utilization rate of system resources is improved.

With reference to the first aspect, in an implementation manner of the first aspect, the method further includes: the terminal device receives first configuration information sent by the network device, wherein the first configuration information comprises first information, and the first information is used for indicating the N target component carriers; wherein, the determining, by the terminal device, N target component carriers used for sending feedback information among the M component carriers includes: and the terminal equipment determines the N target member carriers according to the first information.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining, by the terminal device, feedback information according to a demodulation state of data carried on each of the M component carriers includes: when the terminal equipment determines that the data successfully demodulated exists in the data carried on the M member carriers, determining that the feedback information is Acknowledgement (ACK) information comprising 1 bit; and when the terminal equipment determines that the data carried on the M member carriers are all failed to be demodulated, determining that the feedback information is Negative Acknowledgement (NACK) information comprising 1 bit.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first configuration information further includes second information, where the second information is used to indicate a number of bits included in the feedback information;

wherein, the terminal device determines the feedback information according to the demodulation state of the data carried on each member carrier in the M member carriers, and the determining comprises: and the terminal equipment determines the feedback information according to the second information and the demodulation state of the data carried on each member carrier.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first information indicates that the number of bits included in the feedback information is less than M, and the first information is further used to indicate a correspondence between information carried by each bit and a demodulation state of data carried on a component carrier; or, the first information indicates that the number of bits included in the feedback information is M, and information carried by each bit is used to indicate a demodulation state of data carried by one component carrier.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first configuration information further includes third information, where the third information is used to indicate a time-frequency resource corresponding to each target component carrier and used for carrying the feedback information;

wherein, the sending, by the terminal device, the feedback information to the network device on the N target component carriers includes: and the terminal equipment sends the feedback information to the network equipment on the N target member carriers according to the third information.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first configuration information further includes fourth information and Hybrid automatic repeat request (HARQ) transmission related information, where the fourth information is used to indicate that data carried on the M component carriers is the same, and the method further includes: and the terminal equipment determines that the data carried on the M member carriers are the same according to the fourth information.

Optionally, the HARQ transmission related information includes information such as HARQ process identification ID, new data indication, and the like.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the method further includes: the terminal equipment receives a high-level configuration signaling sent by the network equipment, wherein the high-level configuration signaling is used for indicating that data sent by the network equipment through the M component carriers in a target time slot are the same; and the terminal equipment receives the data sent by the network equipment through the M member carriers in the target time slot.

Optionally, the higher layer configuration signaling is Radio Resource Control (RRC) signaling.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the sending, by the terminal device, the feedback information to a network device on each target component carrier in the N target component carriers includes: and the terminal equipment sends the feedback information to the network equipment on each target member carrier in the target time slot.

In a second aspect, a feedback method based on carrier aggregation is provided, including: the network equipment sends data to the terminal equipment through M member carriers; the network equipment receives feedback information sent by the terminal equipment on a first member carrier, wherein the first member carrier is any one of the M member carriers; and the network equipment executes related operation according to whether the feedback information is the same as the data loaded on the M member carriers.

According to the feedback method based on carrier aggregation, after the network device sends data to the terminal device through the plurality of component carriers, when the feedback information sent by the terminal device is received on one of the component carriers, the network device executes related operations according to the feedback information and the data carried on the plurality of component carriers, so that when the network device determines that the data carried on the plurality of component carriers are the same and the feedback information indicates that the data carried on the one component carrier is successfully demodulated, retransmission of the data carried on the other component carriers is stopped, and new data is transmitted through the plurality of component carriers. The retransmission of redundant data can be avoided, and the utilization rate of system resources is improved.

With reference to the second aspect, in an implementation manner of the second aspect, the performing, by the network device, a relevant operation according to whether the feedback information is the same as data carried on the M component carriers includes: if the data carried on the M member carriers are the same and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, the network device stops retransmitting the data on other member carriers and transmits new data on the M member carriers.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the performing, by the network device, a relevant operation according to whether the feedback information is the same as data carried on the M component carriers includes: if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, the network equipment transmits new data to the terminal equipment on the first member carrier; or, if the data carried on the M component carriers are different pairwise and the feedback information indicates that the data carried on the first component carrier fails to be demodulated, the network device retransmits the data on the first component carrier.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the method further includes: the network equipment receives feedback information on each member carrier in other M-1 member carriers; and the network equipment executes related operation according to the feedback information received on each member carrier in the other M-1 member carriers.

Specifically, if the network device receives an Acknowledgement (ACK) message on one of the M-1 component carriers, the network device performs transmission of new data on the one component carrier. If the network device receives (NACK) information on the component carrier, the network device performs retransmission on the component carrier.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the method further includes: the network equipment sends first configuration information to the terminal equipment, wherein the first configuration information comprises at least one of the following information: the HARQ feedback method includes first information, second information, third information, fourth configuration information, and HARQ transmission related information, where the first information is used to indicate the first component carrier, the second information is used to indicate the number of bits included in the feedback information, the third information is used to indicate time-frequency resources corresponding to the first component carrier and used to carry the feedback information, and the fourth configuration information is used to indicate that data carried on the M component carriers are the same.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the method further includes: and the network equipment sends a high-level configuration signaling to the terminal equipment, wherein the high-level configuration signaling is used for indicating that the data sent by the network equipment through the M member carriers in the target time slot are the same.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the receiving, by the network device, feedback information sent by the terminal device on the first component carrier includes: the network device receives the feedback information on the first component carrier within the target timeslot.

In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or any possible implementation manner of the first aspect. In particular, the terminal device comprises functional modules for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a network device for performing the method of the second aspect or any possible implementation manner of the second aspect. In particular, the network device comprises functional modules for performing the method of the second aspect or any possible implementation of the second aspect.

In a fifth aspect, a terminal device is provided that includes a processor, a memory, and a transceiver. The processor, the memory and the transceiver communicate with each other via an internal connection path to transmit control and/or data signals, so that the terminal device performs the method of the first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, a network device is provided that includes a processor, a memory, and a transceiver. The processor, the memory and the transceiver communicate with each other via the internal connection path to transmit control and/or data signals, so that the network device performs the method of the second aspect or any possible implementation manner of the second aspect.

In a seventh aspect, a computer-readable medium is provided for storing a computer program comprising instructions for performing the first aspect or any possible implementation manner of the first aspect.

In an eighth aspect, there is provided a computer readable medium for storing a computer program comprising instructions for carrying out the second aspect or any possible implementation manner of the second aspect.

Advantageous effects

Drawings

Fig. 1 is a schematic flow chart of a feedback method based on carrier aggregation according to an embodiment of the present application;

fig. 2 is a schematic flow chart diagram of a carrier aggregation based feedback method according to another embodiment of the present application;

fig. 3 is a schematic diagram of a feedback method based on carrier aggregation according to an embodiment of the present application;

fig. 4 is a schematic diagram of a feedback method based on carrier aggregation according to another embodiment of the present application;

FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application;

FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application;

FIG. 7 is a schematic block diagram of a terminal device according to another embodiment of the present application;

fig. 8 is a schematic block diagram of a network device according to another embodiment of the present application.

Best mode for carrying out the invention

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Global system for Mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long term evolution (Long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS) or a Worldwide Interoperability for microwave access (WiMAX) communication system, a 5G system, or a New Radio (NR) system.

In the embodiment of the present application, the Terminal device may include, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a User Equipment (UE), a handset (handset) and a portable device (portable device), a vehicle (vehicle), and the like, and the Terminal device may communicate with one or more core networks via a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the Terminal device may also be a portable, pocket, handheld, computer-embedded or vehicle-mounted Mobile apparatus.

In the embodiment of the present application, a network device is an apparatus deployed in a radio access network to provide a wireless communication function for a terminal device. The network device may be a base station, and the base station may include various macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of devices having a base station function may differ. For example, in an LTE network, referred to as an evolved node B (eNB or eNodeB), in a third Generation (3 rd Generation, 3G) network, referred to as a node B (node B), and so on.

Fig. 1 illustrates a feedback method based on carrier aggregation according to an embodiment of the present application. As shown in fig. 1, the method 100 includes:

s110, if the terminal equipment determines that the data carried on the M member carriers are the same, the terminal equipment determines feedback information according to the demodulation state of the data carried on each member carrier, the feedback information is used for not retransmitting the data when the network equipment determines that the successfully demodulated data exists in the data carried on each member carrier according to the feedback information, and M is a positive integer greater than or equal to 2;

s120, the terminal equipment determines N target component carriers used for sending the feedback information in the M component carriers, wherein N is a positive integer greater than or equal to 1;

s130, the terminal device sends the feedback information to the network device on each target component carrier in the N target component carriers.

According to the feedback method based on carrier aggregation in the embodiment of the application, when the terminal device determines that data carried on a plurality of component carriers are the same, the terminal device determines feedback information according to the demodulation state of the data carried on each component carrier, so that the network device does not retransmit the data when determining that successfully demodulated data exists in the data carried on each component carrier according to the feedback information. Therefore, the retransmission of redundant data can be avoided, and the utilization rate of system resources is improved.

In the embodiment of the present application, a component carrier refers to a carrier for performing carrier aggregation.

It should be noted that, the data carried on the M component carriers are the same, which can be understood as that the M component carriers carry exactly the same Transport Block (TB); or the Data carried on the M component carriers are the same, which may also be understood that TBs carried on the M component carriers are not exactly the same, but Packet Data Convergence Protocol (PDCP) Protocol Data Units (PDUs) contained in the TBs carried on the M component carriers are the same.

In this embodiment, optionally, the network device and the terminal device agree in advance a rule for selecting a target component carrier for transmitting the feedback information, and the terminal device selects the target component carrier for transmitting the feedback information according to the rule agreed in advance. Or, the network device sends first configuration information to the terminal device, where the first configuration information includes first information, and the first information is used to indicate the N target component carriers, and then the terminal device determines the N target component carriers used for transmitting the feedback information according to the first information. And then, the terminal equipment only sends feedback information to the network equipment on the determined N target member carriers, and does not send feedback information to the network equipment on other member carriers. For example, the first information indicates that the terminal device sends the feedback information to the network device on 1 target component carrier, and at this time, the terminal device only sends the feedback information to the network device on the 1 target component carrier configured by the network device.

And the network device and the terminal device may agree in advance, and under the condition that the network device does not perform specific configuration, if the terminal device determines that there is successfully demodulated data in the data carried on the M component carriers, the terminal device determines that the feedback information is ACK information including 1 bit, and if the terminal device determines that the data carried on the M component carriers are all unsuccessfully demodulated, the terminal device determines that the feedback information is NACK information including 1 bit. That is, if the terminal device determines that feedback information needs to be sent to the network device on each of the M component carriers and there is data successfully demodulated in the data carried on each component carrier, the terminal device sends ACK information to the network device on each component carrier (even on the component carrier carrying the data that is not successfully demodulated, the terminal device sends ACK information to the network device instead of NACK information in the prior art). Therefore, the network equipment determines that the data does not need to be retransmitted, avoids the retransmission of redundant data and improves the utilization rate of system resources.

For example, as shown in fig. 2, the data carried on carrier 1 and carrier 2 are the same, and the terminal device determines that feedback information needs to be sent to the terminal device on carrier 1. The terminal device independently demodulates the data on carrier 1 and carrier 2 after receiving the data carried on carrier 1 and carrier 2 in time slot n. Assuming that the demodulation of the data carried on carrier 1 is successful and the demodulation of the data carried on carrier 2 is failed, the terminal device sends ACK information to the network device on carrier 1 in time slot n + m. After receiving the ACK information on carrier 1, the network device transmits new data on carrier 1 and carrier 2 in time slot n + k, where m and k are positive integers greater than or equal to 0.

Alternatively, as shown in fig. 3, the data carried on carrier 1 and carrier 2 are the same, and the terminal device determines that feedback information needs to be sent to the terminal device on carrier 1 and carrier 2. The terminal device independently demodulates the data on carrier 1 and carrier 2 after receiving the data carried on carrier 1 and carrier 2 in time slot n. Assuming that the demodulation of the data carried on carrier 1 is successful and the demodulation of the data carried on carrier 2 is failed, the terminal device generates ACK information to the network device on both carrier 1 and carrier 2 in time slot n + m. After receiving the ACK information on the carrier 1 and the carrier 2, the network device transmits new data on the carrier 1 and the carrier 2 in a time slot n + k, where m and k are positive integers greater than or equal to 0.

In the above embodiment, optionally, the first configuration information further includes second information, where the second information is used to indicate a number of bits included in the feedback information. And the terminal equipment determines the feedback information according to the second information and the demodulation state of the data carried on each member carrier.

Specifically, in some embodiments, if the first information indicates that the feedback information includes a number of bits less than M, the first information is further used to indicate a correspondence relationship between information carried by each bit and a demodulation state of data carried on the component carrier.

For example, assuming that the value of M is 8, and the number of bits included in the first information indication feedback information is 4, the first information indication indicates that each bit indicates a demodulation state of data carried on 2 component carriers. Assuming that the value of the bit corresponding to successful data demodulation is 1, the value of the bit corresponding to failed demodulation is 0, and the value of the bit is 1 as long as the data carried on one member carrier is successfully demodulated in two member carriers corresponding to one bit. If the demodulation of the data carried on the component carrier 1 is successful and the demodulation of the data carried on other component carriers is failed, the value of the bit in the feedback information is 1000. When the network device receives the feedback information, it is determined that data carried on one member carrier is successfully demodulated according to the value of the bit, and the network device directly transmits new data without retransmitting the data.

Or, assuming that M values are 8, and the number of bits included in the first information indication feedback information is 8, the information carried by each bit corresponds to the demodulation state of the data carried on one component carrier. Assuming that the data carried on the component carrier 1 and the component carrier 5 are successfully demodulated, the value of the bit in the feedback information is 10001000. When the network device receives the feedback information, it is determined that the data carried on the member carrier 1 and the member carrier 5 are successfully demodulated according to the value of the bit, and the network device directly transmits new data without retransmission.

In the foregoing embodiment, optionally, the terminal device determines, according to a preset rule, a time-frequency resource for carrying feedback information corresponding to each component carrier. Or the network device may configure the time-frequency resource for the terminal device to send the feedback information. For example, the first configuration information includes third information, and the third information is used to indicate time-frequency resources, corresponding to each target component carrier, for carrying feedback information. And the terminal equipment sends feedback information to the network equipment on the time-frequency resource indicated by the third information.

Further, the first configuration information further includes fourth information and Hybrid automatic repeat request (HARQ) transmission related information, where the fourth information is used to indicate that data carried on the M component carriers are the same, and the terminal device determines that the data carried on the M component carriers are the same according to the fourth information. The HARQ transmission related information includes information such as an Identification (ID) of the HARQ process used on each component carrier, and a new data indication.

It can be understood that the fourth information may not be included in the first configuration information, and then the terminal device may determine whether the data carried on the M component carriers is the same according to the ID of the HARQ process. For example, some HARQ processes may be preset for transmitting the same data, and when the terminal device determines that the HARQ process used by each of the M component carriers is in the preset HARQ processes, the terminal device determines that the data carried on the M component carriers is the same.

In this embodiment of the present application, optionally, the network device configures, through higher layer signaling (e.g., Radio Resource Control (RRC) signaling), some slots (slots) or mini-slots (slots) semi-statically, where the network device transmits the same data on the M component carriers. Therefore, when the terminal device receives the data transmitted by the network device on the M component carriers in the configured time slots or small time slots, the terminal device determines that the data carried on the M component carriers are the same. Furthermore, the network device does not need to dynamically indicate whether the data carried on the multiple component carriers is the same through additional Downlink Control Information (DCI). This can save signaling overhead.

In all the embodiments described above, the terminal device may perform modulation coding on the feedback information in the embodiment of the present application by using the same modulation coding scheme as that of the feedback information in the prior art. The terminal device may further perform modulation coding on the feedback information in the embodiment of the present application by using a more robust modulation coding manner, so as to distinguish from the feedback information including 1 bit in the prior art. Therefore, when the network equipment receives the feedback information, the operation on other component carriers which do not receive the feedback information, such as retransmission or new data transmission, can be accurately determined according to the feedback information.

The feedback method based on carrier aggregation according to the embodiment of the present application is described in detail from the terminal device side in conjunction with fig. 1 to 3, and the feedback method based on carrier aggregation according to the embodiment of the present application is described in detail from the network device side in conjunction with fig. 4. It should be understood that the interaction between the network device and the terminal device described on the network device side is the same as that described on the terminal device side, and the related description is appropriately omitted to avoid redundancy.

Fig. 4 is a feedback method based on carrier aggregation according to another embodiment of the present application, and as shown in fig. 4, the method 200 includes:

s210, the network equipment sends data to the terminal equipment through M member carriers;

s220, the network equipment receives feedback information sent by the terminal equipment on a first member carrier wave, wherein the first member carrier wave is any one member carrier wave in the M member carrier waves;

s230, the network device executes a relevant operation according to whether the feedback information is the same as the data carried on the M component carriers.

According to the feedback method based on carrier aggregation in the embodiment of the application, after the network device sends data to the terminal device through the plurality of component carriers, when the feedback information sent by the terminal device is received on one of the component carriers, the network device executes related operations according to the feedback information and the data carried on the plurality of component carriers, so that when the network device determines that the data carried on the plurality of component carriers are the same and the feedback information indicates that the data carried on the one component carrier is successfully demodulated, retransmission of the data carried on the other component carriers is stopped, and new data is transmitted through the plurality of component carriers. The retransmission of redundant data can be avoided, and the utilization rate of system resources is improved.

In this embodiment of the application, optionally, S230 specifically is: if the data carried on the M member carriers are the same and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, the network device stops retransmitting the data on other member carriers and transmits new data on the M member carriers.

In other words, if the network device receives the feedback information on the other component carrier before the feedback information is received on the first component carrier, and the feedback information received on the other component carrier indicates that the data carried on the other component carrier is not successfully demodulated, the network device performs HARQ retransmission on the other component carrier. In the process that the network device performs HARQ retransmission on the other member carrier, the network device receives feedback information on the first member carrier, and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, so that the network device notifies the HARQ retransmission on the other member carrier. And then the network equipment transmits new data on the M component carriers.

In this embodiment of the application, optionally, S230 specifically is: if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, the network equipment transmits new data to the terminal equipment on the first member carrier; or, if the data carried on the M component carriers are different pairwise and the feedback information indicates that the data carried on the first component carrier fails to be demodulated, the network device retransmits the data on the first component carrier.

In this embodiment of the present application, optionally, the method 200 further includes: the network equipment receives feedback information on each member carrier in other M-1 member carriers; and the network equipment executes related operation according to the feedback information received on each member carrier in the other M-1 member carriers.

Specifically, in some embodiments, if the feedback information received by the network device on one of the other M-1 component carriers is NACK information, the network device transmits new data on this component carrier, otherwise, the network device retransmits the data with failed demodulation on this component carrier.

In this embodiment of the present application, optionally, the method 200 further includes: the network equipment sends first configuration information to the terminal equipment, wherein the first configuration information comprises at least one of the following information: the HARQ feedback method includes first information, second information, third information, fourth configuration information, and HARQ transmission related information, where the first information is used to indicate the first component carrier, the second information is used to indicate the number of bits included in the feedback information, the third information is used to indicate time-frequency resources corresponding to the first component carrier and used to carry the feedback information, and the fourth configuration information is used to indicate that data carried on the M component carriers are the same.

In this embodiment of the present application, optionally, the method 200 further includes: and the network equipment sends a high-level configuration signaling to the terminal equipment, wherein the high-level configuration signaling is used for indicating that the data sent by the network equipment through the M member carriers in the target time slot are the same.

In this embodiment of the application, optionally, S220 specifically is: the network device receives the feedback information on the first component carrier within the target timeslot.

The method of the feedback method based on carrier aggregation according to the embodiment of the present application is described in detail above with reference to fig. 1 to 4, and the terminal device according to the embodiment of the present application will be described in detail below with reference to fig. 5, as shown in fig. 5, the terminal device 10 includes: a processing module 11 and a transceiver module 12;

the processing module 11 is configured to determine feedback information according to a demodulation state of data carried on each component carrier if it is determined that data carried on M component carriers are the same, where the feedback information is used for a network device not to retransmit the data when it is determined that successfully demodulated data exists in the data carried on each component carrier according to the feedback information, and M is a positive integer greater than or equal to 2;

the processing module 11 is further configured to determine N target component carriers used for sending the feedback information among the M component carriers, where N is a positive integer greater than or equal to 1;

the transceiver module 12 is configured to send the feedback information to a network device on each target component carrier in the N target component carriers.

Therefore, according to the terminal device of the embodiment of the present application, when it is determined that the data carried on the plurality of component carriers are the same, the feedback information is determined according to the demodulation state of the data carried on each component carrier, so that the network device does not perform retransmission of the data when it is determined that the successfully demodulated data exists in the data carried on each component carrier according to the feedback information. Therefore, the retransmission of redundant data can be avoided, and the utilization rate of system resources is improved.

In this embodiment of the present application, optionally, the transceiver module 12 is further configured to:

receiving first configuration information sent by the network device, where the first configuration information includes first information, and the first information is used to indicate the N target component carriers;

the processing module 11 is specifically configured to determine the N target component carriers according to the first information.

In this embodiment of the application, optionally, the processing module 11 is specifically configured to:

when it is determined that successfully demodulated data exists in the data carried on the M component carriers, determining that the feedback information is acknowledgement ACK information including 1 bit;

and when the data carried on the M component carriers are determined to be all failed to be demodulated, determining that the feedback information is Negative Acknowledgement (NACK) information comprising 1 bit.

In this embodiment of the present application, optionally, the first configuration information further includes second information, where the second information is used to indicate a number of bits included in the feedback information;

wherein, the processing module 11 is specifically configured to: and determining the feedback information according to the second information and the demodulation state of the data carried on each member carrier.

In this embodiment of the present application, optionally, the first information indicates that the number of bits included in the feedback information is less than M, and the first information is further used to indicate a correspondence between information carried by each bit and a demodulation state of data carried on a component carrier; or the like, or, alternatively,

the first information indicates that the number of bits included in the feedback information is M, and information carried by each bit is used for indicating a demodulation state of data carried by one component carrier.

In this embodiment of the present application, optionally, the first configuration information further includes third information, where the third information is used to indicate a time-frequency resource, corresponding to each target component carrier, for carrying the feedback information;

wherein the transceiver module 12 is specifically configured to: and sending the feedback information to the network equipment on the N target member carriers according to the third information.

In this embodiment of the application, optionally, the first configuration information further includes fourth information and hybrid automatic repeat request, HARQ, transmission related information, where the fourth information is used to indicate that data carried on the M component carriers are the same, and the processing module 11 is further configured to: and determining that the data carried on the M member carriers are the same according to the fourth information.

In this embodiment of the present application, optionally, the transceiver module 12 is further configured to: receiving a high-level configuration signaling sent by the network equipment, wherein the high-level configuration signaling is used for indicating that data sent by the network equipment through the M component carriers in a target time slot are the same; and receiving the data sent by the network equipment through the M component carriers in the target time slot.

In this embodiment of the application, optionally, the transceiver module 12 is specifically configured to: and sending the feedback information to the network equipment on each target member carrier in the target time slot.

The terminal device according to the embodiment of the present application may refer to the flow corresponding to the method 100 of the embodiment of the present application, and each unit/module and the other operations and/or functions in the terminal device are respectively for implementing the corresponding flow in the method 100, and for brevity, no further description is provided here.

Fig. 6 shows a network device according to an embodiment of the present application, and as shown in fig. 6, the network device 20 includes:

a transceiver module 21, configured to send data to a terminal device through M component carriers;

the transceiver module 21 is further configured to receive feedback information sent by the terminal device on a first component carrier, where the first component carrier is any one of the M component carriers;

a processing module 22, configured to execute a relevant operation according to whether the feedback information is the same as the data carried on the M component carriers.

Therefore, after the network device sends data to the terminal device through the multiple component carriers according to the embodiment of the present application, when the feedback information sent by the terminal device is received on one of the component carriers, the network device executes related operations according to the feedback information and the data carried on the multiple component carriers, so that when the network device determines that the data carried on the multiple component carriers are the same and the feedback information indicates that the data carried on the one component carrier is successfully demodulated, retransmission of the data carried on the other component carriers is stopped, and new data is transmitted through the multiple component carriers. The retransmission of redundant data can be avoided, and the utilization rate of system resources is improved.

In this embodiment of the application, optionally, the processing module 22 is specifically configured to: if the data carried on the M member carriers are the same and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, stopping retransmission of the data carried on other member carriers and transmitting new data on the M member carriers.

In this embodiment of the application, optionally, the processing module 22 is specifically configured to:

if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, transmitting new data to the terminal equipment on the first member carrier; or the like, or, alternatively,

and if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier fails to be demodulated, retransmitting the data on the first member carrier.

In this embodiment of the application, optionally, the transceiver module 21 is further configured to: receiving feedback information on each of the other M-1 component carriers; and executing relevant operation according to the feedback information received on each member carrier in the other M-1 member carriers.

In this embodiment of the application, optionally, the transceiver module 21 is further configured to: sending first configuration information to the terminal device, wherein the first configuration information comprises at least one of the following information: the HARQ feedback method includes first information, second information, third information, fourth configuration information, and HARQ transmission related information, where the first information is used to indicate the first component carrier, the second information is used to indicate the number of bits included in the feedback information, the third information is used to indicate time-frequency resources corresponding to the first component carrier and used to carry the feedback information, and the fourth configuration information is used to indicate that data carried on the M component carriers are the same.

In this embodiment of the application, optionally, the transceiver module 21 is further configured to: and sending a high-level configuration signaling to the terminal equipment, wherein the high-level configuration signaling is used for indicating that the data sent by the network equipment through the M member carriers in the target time slot are the same.

In this embodiment of the application, optionally, the transceiver module 21 is specifically configured to: receiving the feedback information on the first component carrier within the target timeslot.

The network device according to the embodiment of the present application may refer to the flow corresponding to the method 200 of the embodiment of the present application, and each unit/module and the other operations and/or functions in the network device are respectively for implementing the corresponding flow in the method 200, and are not described herein again for brevity.

Fig. 7 shows a terminal device according to another embodiment of the present application. As shown in fig. 7, the terminal device 100 includes a processor 110 and a transceiver 120, the processor 110 is connected to the transceiver 120, and optionally, the network device 100 further includes a memory 130, and the memory 130 is connected to the processor 110. Wherein the processor 110, the memory 130, and the transceiver 120 may communicate with each other through internal connection paths. The processor 110 is configured to determine feedback information according to a demodulation state of data carried on each component carrier if it is determined that data carried on M component carriers are the same, where the feedback information is used for a network device not to retransmit the data when it is determined that successfully demodulated data exists in the data carried on each component carrier according to the feedback information, and M is a positive integer greater than or equal to 2; the processor 110 is further configured to determine N target component carriers used for sending the feedback information among the M component carriers, where N is a positive integer greater than or equal to 1; the transceiver 120 is configured to send the feedback information to a network device on each target component carrier of the N target component carriers.

The terminal device 100 according to the embodiment of the present application may refer to the terminal device 10 corresponding to the embodiment of the present application, and each unit/module and the other operations and/or functions in the terminal device are respectively for implementing a corresponding flow in the method 100, and for brevity, no further description is provided here.

Fig. 8 shows a schematic block diagram of a network device according to another embodiment of the present application, and as shown in fig. 8, the network device 200 includes: the processor 210 and the transceiver 220, and the processor 210 and the transceiver 220 are connected, and optionally, the terminal device 200 further includes a memory 230, and the memory 230 is connected to the processor 210. Wherein the processor 210, the memory 230, and the transceiver 220 may communicate with each other through internal connection paths. The transceiver 220 is configured to send data to a terminal device through M component carriers; the transceiver 220 is further configured to receive feedback information sent by the terminal device on a first component carrier, where the first component carrier is any one of the M component carriers; a processor 210, configured to execute a relevant operation according to whether the feedback information is the same as data carried on the M component carriers.

The network device 200 according to the embodiment of the present application may refer to the network device 20 corresponding to the embodiment of the present application, and each unit/module and the other operations and/or functions in the network device are respectively for implementing a corresponding flow in the method 200, and are not described herein again for brevity.

It is understood that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory in the embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. The volatile Memory may be a Random Access Memory (RAM) which functions as an external cache. By way of illustration, and not limitation, many forms of RAM are available, such as static random access memory (statram, SRAM), Dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (syncronous DRAM, SDRAM), Double Data Rate synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced synchronous SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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

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

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

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

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

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

Claims

A feedback method based on carrier aggregation is characterized by comprising the following steps:

if the terminal equipment determines that the data carried on the M member carriers are the same, the terminal equipment determines feedback information according to the demodulation state of the data carried on each member carrier, the feedback information is used for not retransmitting the data when the network equipment determines that the successfully demodulated data exists in the data carried on each member carrier according to the feedback information, and M is a positive integer greater than or equal to 2;

the terminal equipment determines N target component carriers used for sending the feedback information in the M component carriers, wherein N is a positive integer greater than or equal to 1;

and the terminal equipment sends the feedback information to network equipment on each target member carrier in the N target member carriers.
The method of claim 1, further comprising:

the terminal device receives first configuration information sent by the network device, wherein the first configuration information comprises first information, and the first information is used for indicating the N target component carriers;

wherein, the determining, by the terminal device, N target component carriers used for sending feedback information among the M component carriers includes:

and the terminal equipment determines the N target member carriers according to the first information.
The method of claim 2, wherein the determining, by the terminal device, the feedback information according to the demodulation status of the data carried on each of the M component carriers comprises:

when the terminal equipment determines that the data successfully demodulated exists in the data carried on the M member carriers, determining that the feedback information is Acknowledgement (ACK) information comprising 1 bit;

and when the terminal equipment determines that the data carried on the M member carriers are all failed to be demodulated, determining that the feedback information is Negative Acknowledgement (NACK) information comprising 1 bit.
The method of claim 2, wherein the first configuration information further comprises second information indicating a number of bits included in the feedback information;

wherein, the terminal device determines the feedback information according to the demodulation state of the data carried on each member carrier in the M member carriers, and the determining comprises:

and the terminal equipment determines the feedback information according to the second information and the demodulation state of the data carried on each member carrier.
The method according to claim 4, wherein the first information indicates that the feedback information includes a number of bits less than M, and the first information is further used to indicate a correspondence relationship between information carried by each bit and a demodulation status of data carried on a component carrier; or the like, or, alternatively,

the first information indicates that the number of bits included in the feedback information is M, and information carried by each bit is used for indicating a demodulation state of data carried by one component carrier.
The method according to any one of claims 2 to 4, wherein the first configuration information further includes third information, the third information is used to indicate time-frequency resources corresponding to each target component carrier for carrying the feedback information;

wherein, the sending, by the terminal device, the feedback information to the network device on the N target component carriers includes:

and the terminal equipment sends the feedback information to the network equipment on the N target member carriers according to the third information.
The method according to any of claims 2 to 6, wherein the first configuration information further comprises fourth information and hybrid automatic repeat request, HARQ, transmission related information, the fourth information being used for indicating that the data carried on the M component carriers are the same, the method further comprising:

and the terminal equipment determines that the data carried on the M member carriers are the same according to the fourth information.
The method according to any one of claims 1 to 6, further comprising:

the terminal equipment receives a high-level configuration signaling sent by the network equipment, wherein the high-level configuration signaling is used for indicating that data sent by the network equipment through the M component carriers in a target time slot are the same;

and the terminal equipment receives the data sent by the network equipment through the M member carriers in the target time slot.
The method of claim 8, wherein the terminal device sends the feedback information to a network device on each of the N target component carriers, and wherein the sending comprises:

and the terminal equipment sends the feedback information to the network equipment on each target member carrier in the target time slot.
A feedback method based on carrier aggregation is characterized by comprising the following steps:

the network equipment sends data to the terminal equipment through M member carriers;

the network equipment receives feedback information sent by the terminal equipment on a first member carrier, wherein the first member carrier is any one of the M member carriers;

and the network equipment executes related operation according to whether the feedback information is the same as the data loaded on the M member carriers.
The method according to claim 10, wherein the network device performs a correlation operation according to whether the feedback information is the same as the data carried on the M component carriers, including:

if the data carried on the M member carriers are the same and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, the network device stops retransmitting the data on other member carriers and transmits new data on the M member carriers.
The method according to claim 10, wherein the network device performs a correlation operation according to whether the feedback information is the same as the data carried on the M component carriers, including:

if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, the network equipment transmits new data to the terminal equipment on the first member carrier; or the like, or, alternatively,

and if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier fails to be demodulated, retransmitting the data on the first member carrier by the network equipment.
The method of claim 12, further comprising:

the network equipment receives feedback information on each member carrier in other M-1 member carriers;

and the network equipment executes related operation according to the feedback information received on each member carrier in the other M-1 member carriers.
The method according to claim 10 or 11, characterized in that the method further comprises:

the network equipment sends first configuration information to the terminal equipment, wherein the first configuration information comprises at least one of the following information: the HARQ feedback method includes first information, second information, third information, fourth configuration information, and HARQ transmission related information, where the first information is used to indicate the first component carrier, the second information is used to indicate the number of bits included in the feedback information, the third information is used to indicate time-frequency resources corresponding to the first component carrier and used to carry the feedback information, and the fourth configuration information is used to indicate that data carried on the M component carriers are the same.
The method according to claim 10 or 11, characterized in that the method further comprises:

and the network equipment sends a high-level configuration signaling to the terminal equipment, wherein the high-level configuration signaling is used for indicating that the data sent by the network equipment through the M member carriers in the target time slot are the same.
The method of claim 15, wherein the receiving, by the network device, the feedback information sent by the terminal device on the first component carrier comprises:

the network device receives the feedback information on the first component carrier within the target timeslot.
A terminal device, comprising: the device comprises a processing module and a transmitting-receiving module;

the processing module is configured to determine feedback information according to a demodulation state of data carried on each component carrier if it is determined that data carried on M component carriers are the same, where the feedback information is used for a network device not to retransmit the data when it is determined that successfully demodulated data exists in the data carried on each component carrier according to the feedback information, and M is a positive integer greater than or equal to 2;

the processing module is further configured to determine N target component carriers used for sending the feedback information among the M component carriers, where N is a positive integer greater than or equal to 1;

the transceiver module is configured to send the feedback information to a network device on each target component carrier of the N target component carriers.
The terminal device of claim 17, wherein the transceiver module is further configured to:

receiving first configuration information sent by the network device, where the first configuration information includes first information, and the first information is used to indicate the N target component carriers;

the processing module is specifically configured to determine the N target component carriers according to the first information.
The terminal device of claim 18, wherein the processing module is specifically configured to:

when it is determined that successfully demodulated data exists in the data carried on the M component carriers, determining that the feedback information is acknowledgement ACK information including 1 bit;

and when the data carried on the M component carriers are determined to be all failed to be demodulated, determining that the feedback information is Negative Acknowledgement (NACK) information comprising 1 bit.
The terminal device of claim 18, wherein the first configuration information further comprises second information indicating a number of bits included in the feedback information;

wherein the processing module is specifically configured to:

and determining the feedback information according to the second information and the demodulation state of the data carried on each member carrier.
The terminal device according to claim 20, wherein the first information indicates that the feedback information includes a number of bits less than M, and the first information is further used to indicate a correspondence between information carried by each bit and a demodulation status of data carried on a component carrier; or the like, or, alternatively,

the first information indicates that the number of bits included in the feedback information is M, and information carried by each bit is used for indicating a demodulation state of data carried by one component carrier.
The terminal device according to any one of claims 18 to 20, wherein the first configuration information further includes third information, and the third information is used to indicate time-frequency resources corresponding to each target component carrier for carrying the feedback information;

wherein the transceiver module is specifically configured to:

and sending the feedback information to the network equipment on the N target member carriers according to the third information.
The terminal device according to any of claims 18 to 22, wherein the first configuration information further comprises fourth information and hybrid automatic repeat request, HARQ, transmission related information, the fourth information is used to indicate that the data carried on the M component carriers are the same, and the processing module is further used to:

and determining that the data carried on the M member carriers are the same according to the fourth information.
The terminal device according to any of claims 17 to 22, wherein the transceiver module is further configured to:

receiving a high-level configuration signaling sent by the network equipment, wherein the high-level configuration signaling is used for indicating that data sent by the network equipment through the M component carriers in a target time slot are the same;

and receiving the data sent by the network equipment through the M component carriers in the target time slot.
The terminal device of claim 24, wherein the transceiver module is specifically configured to:

and sending the feedback information to the network equipment on each target member carrier in the target time slot.
A network device, comprising:

the receiving and sending module is used for sending data to the terminal equipment through the M member carriers;

the transceiver module is further configured to receive feedback information sent by the terminal device on a first component carrier, where the first component carrier is any one of the M component carriers;

and the processing module is used for executing related operations according to whether the feedback information is the same as the data loaded on the M member carriers.
The network device of claim 26, wherein the processing module is specifically configured to:

if the data carried on the M member carriers are the same and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, stopping retransmission of the data carried on other member carriers and transmitting new data on the M member carriers.
The network device of claim 26, wherein the processing module is specifically configured to:

if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier is successfully demodulated, transmitting new data to the terminal equipment on the first member carrier; or the like, or, alternatively,

and if the data carried on the M member carriers are different pairwise and the feedback information indicates that the data carried on the first member carrier fails to be demodulated, retransmitting the data on the first member carrier.
The network device of claim 28, wherein the transceiver module is further configured to:

receiving feedback information on each of the other M-1 component carriers;

and executing relevant operation according to the feedback information received on each member carrier in the other M-1 member carriers.
The network device of claim 26 or 27, wherein the transceiver module is further configured to:

sending first configuration information to the terminal device, wherein the first configuration information comprises at least one of the following information: the HARQ feedback method includes first information, second information, third information, fourth configuration information, and HARQ transmission related information, where the first information is used to indicate the first component carrier, the second information is used to indicate the number of bits included in the feedback information, the third information is used to indicate time-frequency resources corresponding to the first component carrier and used to carry the feedback information, and the fourth configuration information is used to indicate that data carried on the M component carriers are the same.
The network device of claim 26 or 27, wherein the transceiver module is further configured to:

and sending a high-level configuration signaling to the terminal equipment, wherein the high-level configuration signaling is used for indicating that the data sent by the network equipment through the M member carriers in the target time slot are the same.
The network device of claim 31, wherein the transceiver module is specifically configured to: receiving the feedback information on the first component carrier within the target timeslot.