WO2014110826A1

WO2014110826A1 - Hybrid automatic repeat request feedback method, base station, and user equipment

Info

Publication number: WO2014110826A1
Application number: PCT/CN2013/070782
Authority: WO
Inventors: 李秉肇; 陈燕燕; 冯莉
Original assignee: 华为技术有限公司
Priority date: 2013-01-21
Filing date: 2013-01-21
Publication date: 2014-07-24
Also published as: CN104185963B; CN104185963A

Abstract

The present invention provides a hybrid automatic repeat request (HARQ) feedback method, a base station, and a user equipment. The method comprises: a base station determining a process group, wherein the process group comprises at least two processes; the base station invoking a process to send downlink data to a user equipment; and the base station receiving, at a feedback time corresponding to the process group, HARQ acknowledgement information sent by the user equipment. Therefore, the power required for HARQ feedback is reduced.

Description

The present invention relates to the field of communications technologies, and in particular, to a hybrid automatic repeat request feedback method, a base station, and a user equipment. Background technique

High-speed Downlink Packet Access (HSDPA) technology uses Hybrid Automatic Repeat Request (HARQ) for transmission. The time from the transmission of data to the receipt of a HARQ process is Fixed, the HARQ process cannot continue to transmit data until an acknowledgment is received.

In the prior art, for continuous data transmission, a user equipment (User Equipment, UE for short) needs to support six HARQ processes simultaneously to meet the requirements of continuous data transmission. In order to ensure that each process can be confirmed as soon as possible for the next data transmission, each HARQ process performs separate feedback. However, this makes the power of the uplink feedback larger. Summary of the invention

The embodiment of the invention provides a hybrid automatic retransmission request feedback method, a base station and a user equipment, which are used to solve the problem that the power required for HARQ feedback is large.

In a first aspect, an embodiment of the present invention provides a hybrid automatic retransmission request feedback method, including: a base station determining a process group, where the process group includes at least two processes;

The base station invoking process sends downlink data to the user equipment;

The base station receives HARQ acknowledgement information sent by the user equipment at a feedback time corresponding to the process group.

In a first possible implementation manner of the first aspect, the determining the process group includes: determining, by the base station, the process group according to a time when the process is scheduled; or determining, by the base station, the process group according to the process ID. .

According to the first possible implementation manner of the first aspect, in a second possible implementation manner, the time when the process is scheduled includes: a frame number and a subframe number. According to the first possible implementation manner of the first aspect, in a third possible implementation, the determining, by the base station, the process group according to a time when the process is scheduled, includes:

The base station shall continuously satisfy n subframes satisfying [(frame number + 5 * subframe number) modulo n = 0] and subframes satisfying [(frame number + 5 * subframe number) modulo n = 1 ] until An integer satisfying [(frame number + 5 * subframe number) modulo n = n - l ].

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, and the third possible implementation of the first aspect, in a fourth possible implementation , Also includes:

The base station sends a joint feedback indication message to the user equipment, where the joint feedback indication message is used to indicate that the user equipment performs joint HARQ feedback on the process group, and the process group includes at least two processes.

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, and the fourth possible aspect of the first aspect In a fifth possible implementation manner, after the sending, by the base station, the joint feedback indication message to the user equipment, the method further includes:

The base station sends an activation indication or a deactivation indication to the user equipment to the user equipment, where the activation indication is used to instruct the user equipment to perform joint HARQ feedback on the process group, where the deactivation indication is used The user is instructed not to perform joint HARQ feedback on the process group.

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, the fourth possible aspect of the first aspect And the fifth possible implementation manner of the first aspect, in the sixth possible implementation manner, the joint feedback indication message includes: a process ID included in the process group, and each process in the The order of calls within a process group.

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, the fourth possible implementation of the first aspect The method, the fifth possible implementation manner of the first aspect, and the sixth possible implementation manner of the first aspect, in the seventh possible implementation manner, the determining, by the base station, the process group feedback time, including: Determining, by the base station, a feedback time corresponding to the process group according to the number of processes included in the process group and the order in which the downlink data is invoked; or

The base station determines a feedback time corresponding to the process group according to a scheduling time corresponding to the process in which the downlink data is called to be sent.

According to the seventh possible implementation manner of the first aspect, in the eighth possible implementation, the scheduling time corresponding to the process that is sent to send the downlink data includes: the process corresponding to the process of sending the downlink data that is called Frame number and subframe number.

According to the seventh possible implementation manner of the first aspect, in a ninth possible implementation manner, the base station, according to the number of processes included in the process group, is corresponding to a process group of a process that is sent to send downlink data. Time, including:

Determining, by the base station, an offset TTI of each of the processes according to the number of processes included in the process group and the calling sequence of each process in the process group in the process group;

Determining, by the base station, a feedback reference TTI of the process group according to a TTI of the process in which the downlink data is sent in the process group and a corresponding offset TTI;

The base station determines the feedback time of the feedback reference TTI associated with the process group as the feedback time corresponding to the process group.

With reference to the third possible implementation manner of the first aspect, and the eighth possible implementation manner of the first aspect, in a tenth possible implementation manner, the base station is configured according to a frame number corresponding to a process that is sent to send downlink data. And the subframe number, determining a feedback time corresponding to the process group, including:

The base station determines the feedback time of the subframe association satisfying the [(frame number + 5 * subframe number) modulo n = n - l ] relationship as the feedback time corresponding to the process group.

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, the fourth possible aspect of the first aspect The implementation manner, the fifth possible implementation manner of the first aspect, the sixth possible implementation manner of the first aspect, the seventh possible implementation manner of the first aspect, and the eighth possible implementation manner of the first aspect The ninth possible implementation manner of the first aspect, and the tenth possible implementation manner of the first aspect,

Determining, by the base station, a process invoked on at least two carriers as a progress included in the process group Cheng.

According to the eleventh possible implementation manner of the first aspect, in a twelfth possible implementation manner, the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to a process with a short TTI.

According to the twelfth possible implementation manner of the first aspect, in a thirteenth possible implementation manner, if the base station determines a process that is invoked on two carriers as a process included in the process group, The product of the number of processes in the process group included in one of the two carriers and the TTI length of the carrier is equal to the length of the other carrier of the two carriers.

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, the fourth possible aspect of the first aspect The implementation manner, the fifth possible implementation manner of the first aspect, the sixth possible implementation manner of the first aspect, the seventh possible implementation manner of the first aspect, and the eighth possible implementation manner of the first aspect The ninth possible implementation of the first aspect, the tenth possible implementation of the first aspect, the tenth possible implementation of the first aspect, the twelfth possible implementation of the first aspect, and The thirteenth possible implementation manner of the foregoing aspect, in the fourteenth possible implementation manner, the HARQ acknowledgement information that is received by the base station at a feedback time corresponding to the process group is: in the process group Joint coding information of HARQ confirmation information of each process included.

In a second aspect, the embodiment of the present invention provides a hybrid automatic retransmission request feedback method, including: a user equipment determining a process group, where the process group includes at least two processes;

Receiving, by the user equipment, downlink data sent by a process invoked by the base station;

The user equipment feeds back HARQ acknowledgement information to the base station at a feedback time corresponding to the process group.

In a first possible implementation manner of the second aspect, the determining the process group includes: determining, by the user equipment, the process group according to a time when the process is scheduled; or determining, by the base station, the process according to the process ID. group.

According to the first possible implementation manner of the second aspect, in a second possible implementation manner, the time that the process is scheduled includes: a frame number and a subframe number.

According to the first possible implementation manner of the second aspect, in a third possible implementation, the determining, by the user equipment, the process group according to a time when the process is scheduled, includes:

The user equipment will continuously have n subframes satisfying [(frame number + 5 * subframe number) modulo n = 0] and full A sub-frame of [(frame number + 5 * subframe number) modulo n = l] until an integer of [(frame number + 5 * subframe number) modulo n = n - l ] is satisfied.

With reference to the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, and the third possible implementation of the second aspect, in a fourth possible implementation manner Before the user equipment receives the downlink data sent by the process invoked by the base station, the method further includes:

The user equipment receives the joint feedback indication message sent by the base station, where the joint feedback indication message is used to indicate that the user equipment performs joint HARQ feedback on the process group, and the process group includes at least two processes.

With reference to the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, the third possible implementation of the second aspect, and the fourth possible aspect of the second aspect In a fifth possible implementation manner, after the user equipment receives the joint feedback indication message sent by the base station, the user equipment further includes:

The user equipment receives an activation indication or a deactivation indication sent by the base station to the joint feedback indication message, where the activation indication is used to instruct the user equipment to perform joint HARQ feedback on a process group, where the deactivation indication is performed. And indicating that the user does not perform joint HARQ feedback on the process group.

With reference to the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, the third possible implementation of the second aspect, and the fourth possible aspect of the second aspect And the fifth possible implementation manner of the second aspect, in the sixth possible implementation manner, the joint feedback indication message includes: a process ID included in the process group, and each process in the The order of calls within a process group.

With reference to the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, the third possible implementation of the second aspect, and the fourth possible aspect of the second aspect The implementation manner, the fifth possible implementation manner of the second aspect, and the sixth possible implementation manner of the second aspect. In a seventh possible implementation, the user equipment determines the process group feedback time, including :

The user equipment is in the process group according to the number of processes included in the process group, the transmission time slot TTI of the process in which the downlink data is called, and the process of sending the downlink data. The calling sequence determines the feedback time corresponding to the process group; or

The user equipment determines a scheduling time corresponding to the process group according to a feedback time corresponding to a process that is called to send downlink data.

According to the seventh possible implementation manner of the second aspect, in the eighth possible implementation, the scheduling time corresponding to the process that is sent to send the downlink data includes: the process corresponding to the process of sending the downlink data that is called Frame number and subframe number.

According to the seventh possible implementation manner of the second aspect, in a ninth possible implementation, the user equipment is configured to send the downlink data to the process group according to the number of processes included in the process group. Feedback time, including:

Determining, by the user equipment, an offset TTI of each of the processes according to the number of processes included in the process group and the calling sequence of each process in the process group in the process group;

Determining, by the user equipment, a feedback reference TTI of the process group according to a TTI of the process in which the downlink data is sent in the process group and a corresponding offset TTI;

The user equipment determines the feedback time of the feedback reference TTI associated with the process group as the feedback time corresponding to the process group.

With reference to the third possible implementation manner of the second aspect, and the eighth possible implementation manner of the second aspect, in the tenth possible implementation manner, the user equipment is configured according to a frame corresponding to a process that is sent to send downlink data. The number and the subframe number determine the feedback time corresponding to the process group, including:

The user equipment determines the feedback time of the subframe association that satisfies the relationship of [(frame number + 5 * subframe number) modulo n = n - l ] as the feedback time corresponding to the process group.

With reference to the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, the third possible implementation of the second aspect, and the fourth possible aspect of the second aspect Implementation manner, the fifth possible implementation manner of the second aspect, the sixth possible implementation manner of the second aspect, the seventh possible implementation manner of the second aspect, and the eighth possible implementation manner of the second aspect The ninth possible implementation manner of the second aspect, and the tenth possible implementation manner of the second aspect,

The user equipment determines a process invoked on at least two carriers as a process included in the process group.

According to an eleventh possible implementation of the second aspect, in a twelfth possible implementation The lengths of the at least two carriers are different, and the process group feedback time is determined according to a shorter process.

According to the twelfth possible implementation manner of the second aspect, in the thirteenth possible implementation manner, if the user equipment determines the process invoked on the two carriers as the process included in the process group, The product of the number of processes in the process group and the length of the carrier of one of the two carriers is equal to the length of the other carrier of the two carriers.

With reference to the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, the third possible implementation of the second aspect, and the fourth possible aspect of the second aspect Implementation manner, the fifth possible implementation manner of the second aspect, the sixth possible implementation manner of the second aspect, the seventh possible implementation manner of the second aspect, and the eighth possible implementation manner of the second aspect a ninth possible implementation of the second aspect, a tenth possible implementation of the second aspect, a tenth possible implementation of the second aspect, a twelfth possible implementation of the second aspect, and The thirteenth possible implementation manner of the second aspect, in the fourteenth possible implementation manner, the HARQ acknowledgement information that the user equipment feeds back to the base station in the feedback time corresponding to the process group is: Joint coding information of HARQ acknowledgment information of each process included in the process group.

In a third aspect, an embodiment of the present invention provides a base station, including:

a first process group determining module, configured to determine a process group, where the process group includes at least two processes;

a data sending module, configured to invoke a process to send downlink data to the user equipment;

The receiving confirmation information module is configured to receive HARQ confirmation information sent by the user equipment at a feedback time corresponding to the process group.

In a first possible implementation manner of the third aspect, the first process group determining module includes:

a process group determining unit, configured to determine the process group according to a time when the process is scheduled; or, to determine the process group according to the process ID.

According to a first possible implementation manner of the third aspect, in a third possible implementation manner, the time that the process is scheduled includes: a frame number and a subframe number.

According to a first possible implementation manner of the third aspect, in a third possible implementation, the process group determining unit includes: a first consecutive subframe determining unit for continuously n subframes satisfying [(frame number + 5 * subframe number) modulo n = 0] and satisfying [(frame number + 5 * subframe number) modulo n = The sub-frame of l ] until an integer of [ (frame number + 5 * sub-frame number:) is greater than or equal to 2 is satisfied.

With reference to the third aspect, the first possible implementation manner of the third aspect, the second possible implementation manner of the third aspect, and the third possible implementation manner of the third aspect, in a fourth possible implementation manner The foregoing base station further includes: a joint feedback indication sending module, configured to send a joint feedback indication message to the user equipment, where the joint feedback indication message is used to instruct the user equipment to perform joint HARQ feedback on the process group, where the process group It includes at least two processes.

With reference to the third aspect, the first possible implementation of the third aspect, the second possible implementation of the third aspect, the third possible implementation of the third aspect, and the fourth possible aspect of the third aspect In a fifth possible implementation, the foregoing base station further includes: an activation or deactivation indication sending module, configured to send an activation indication or a deactivation indication to the user equipment to the joint feedback indication message, where The activation indication is used to instruct the user equipment to perform joint HARQ feedback on the process group, where the deactivation indication is used to indicate that the user does not perform joint HARQ feedback on the process group.

With reference to the third aspect, the first possible implementation of the third aspect, the second possible implementation of the third aspect, the third possible implementation of the third aspect, and the fourth possible aspect of the third aspect And the fifth possible implementation manner of the third aspect, in the sixth possible implementation manner, the joint feedback indication message includes: a process number included in the process group, and each process in the The order of calls within a process group.

With reference to the third aspect, the first possible implementation of the third aspect, the second possible implementation of the third aspect, the third possible implementation of the third aspect, and the fourth possible aspect of the third aspect The implementation manner, the fifth possible implementation manner of the third aspect, and the sixth possible implementation manner of the third aspect, in the seventh possible implementation manner, the foregoing base station further includes:

a first process feedback time determining module, configured to: according to the number of processes included in the process group, a transmission time gap TTI of a process that is called to send downlink data, and a calling sequence of a process that is sent to send downlink data in the process group Determining a feedback time corresponding to the process group; or, the first subframe feedback time determining module is configured to determine, according to a scheduling time corresponding to a process in which the downlink data is sent in the process group, time. According to the seventh possible implementation manner of the third aspect, in an eighth possible implementation manner, the scheduling time corresponding to the process that is sent to send the downlink data includes: the process corresponding to the process of sending the downlink data that is called Frame number and subframe number.

According to the seventh possible implementation manner of the third aspect, in a ninth possible implementation manner, the first process feedback time determining module includes:

a first offset TTI determining unit, configured to determine an offset of each of the processes according to a number of processes included in the process group and a calling sequence of each process in the process group in the process group

TTI;

a first feedback reference TTI determining unit, configured to determine a feedback reference TTI of the process group according to a TTI of any process in the process group that is sent to send downlink data and a corresponding offset TTI; And a unit, configured to determine a feedback time of the feedback reference TTI association of the process group as a feedback time corresponding to the process group.

With reference to the third possible implementation manner of the third aspect, and the eighth possible implementation manner of the third aspect, in a tenth possible implementation manner, the first subframe feedback time determining module includes: the first subframe The feedback time determining unit is configured to determine a feedback time of the subframe association that satisfies the [(frame number + 5 * subframe number) modulo n = nl] relationship as the feedback time corresponding to the process group.

With reference to the third aspect, the first possible implementation of the third aspect, the second possible implementation of the third aspect, the third possible implementation of the third aspect, and the fourth possible aspect of the third aspect Implementation manner, the fifth possible implementation manner of the third aspect, the sixth possible implementation manner of the third aspect, the seventh possible implementation manner of the third aspect, and the eighth possible implementation manner of the third aspect The ninth possible implementation manner of the third aspect, and the tenth possible implementation manner of the third aspect,

And a first carrier process group determining module, configured to determine a process invoked on the at least two carriers as a process included in the process group.

According to the eleventh possible implementation manner of the third aspect, in the twelfth possible implementation manner, the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to a process with a short TTI.

According to the twelfth possible implementation manner of the third aspect, in the thirteenth possible implementation manner, if the process invoked on the two carriers is determined to be a process included in the process group, the two The number of processes in the process group included in one carrier in the carrier and the length of the carrier The product is equal to the TTI length of the other of the two carriers.

With reference to the third aspect, the first possible implementation of the third aspect, the second possible implementation of the third aspect, the third possible implementation of the third aspect, and the fourth possible aspect of the third aspect Implementation manner, the fifth possible implementation manner of the third aspect, the sixth possible implementation manner of the third aspect, the seventh possible implementation manner of the third aspect, and the eighth possible implementation manner of the third aspect The ninth possible implementation manner of the third aspect, the tenth possible implementation manner of the third aspect, the tenth possible implementation manner of the third aspect, the twelfth possible implementation manner of the third aspect, and The thirteenth possible implementation manner of the third aspect, in the fourteenth possible implementation manner, the HARQ confirmation information received at a feedback time corresponding to the process group is: each included in the process group The joint encoding information of the HARQ confirmation information of the process.

In a fourth aspect, an embodiment of the present invention provides a user equipment, including:

a second process group determining module, configured to determine a process group, where the process group includes at least two processes;

a data receiving module, configured to receive downlink data sent by a process invoked by the base station;

Sending an acknowledgement information module, configured to feed back to the base station at a feedback time corresponding to the process group

HARQ confirmation information.

In a first possible implementation manner of the fourth aspect, the process group determining module includes: a process group determining unit, configured to determine the process group according to a scheduled time of the process; or, configured to determine, according to the process ID The process group.

According to a first possible implementation manner of the fourth aspect, in a third possible implementation manner, the time that the process is scheduled includes: a frame number and a subframe number.

According to the first possible implementation manner of the fourth aspect, in a third possible implementation, the process group determining unit includes:

a second consecutive subframe determining unit for continuously n subframes satisfying [(frame number + 5 * subframe number) modulo n = 0] and satisfying [(frame number + 5 * subframe number) modulo n = The sub-frame of l ] until an integer of [ (frame number + 5 * sub-frame number:) is greater than or equal to 2 is satisfied.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, and the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner The above user equipment further includes: The joint feedback indication receiving module is configured to receive a joint feedback indication message sent by the base station, where the joint feedback indication message is used to indicate that the user equipment performs joint HARQ feedback on the process group, where the process group includes at least two processes. .

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and the fourth possible In a fifth possible implementation manner, the user equipment further includes: an activation or deactivation indication receiving module, configured to receive an activation indication or a deactivation indication sent by the base station to the joint feedback indication message, The activation indication is used to instruct the user equipment to perform joint HARQ feedback on the process group, where the deactivation indication is used to instruct the user not to perform joint HARQ feedback on the process group.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and the fourth possible And a fifth possible implementation manner of the fourth aspect, in a sixth possible implementation, the joint feedback indication message includes: a process ID included in the process group, and each process in the The order of calls within a process group.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and the fourth possible The implementation manner, the fifth possible implementation manner of the fourth aspect, and the sixth possible implementation manner of the fourth aspect, in the seventh possible implementation manner, the user equipment further includes: a second process feedback time determining module Determining, according to the number of processes included in the process group, the transmission time slot TTI of the process that is called to send downlink data, and the calling sequence of the process that is sent to send the downlink data in the process group, determining that the process group corresponds to The second sub-frame feedback time determining module is configured to determine a feedback time corresponding to the process group according to a scheduling time corresponding to a process in which the downlink data is sent in the process group.

According to the seventh possible implementation manner of the fourth aspect, in the eighth possible implementation, the scheduling time corresponding to the process that is sent to send the downlink data includes: the process corresponding to the process of sending the downlink data that is called Frame number and subframe number.

According to the seventh possible implementation manner of the fourth aspect, in a ninth possible implementation manner, the second process feedback time determining module includes:

a second offset TTI determining unit, configured to determine, according to the number of processes included in the process group, Determining the order of each process within the process group in the process group, determining the offset of each of the processes

TTI;

a second feedback reference TTI determining unit, configured to determine a feedback reference TTI of the process group according to a TTI of any process in the process group that is sent to send downlink data and a corresponding offset TTI; And a unit, configured to determine a feedback time of the feedback reference TTI association of the process group as a feedback time corresponding to the process group.

With reference to the third possible implementation manner of the fourth aspect, and the eighth possible implementation manner of the fourth aspect, in a tenth possible implementation manner, the second subframe feedback time determining module includes: the second subframe feedback The time determining unit is configured to determine a feedback time of the subframe association that satisfies the [(frame number + 5 * subframe number) modulo n=n-1] relationship as the feedback time corresponding to the process group.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and the fourth possible The implementation manner, the fifth possible implementation manner of the fourth aspect, the sixth possible implementation manner of the fourth aspect, the seventh possible implementation manner of the fourth aspect, and the eighth possible implementation manner of the fourth aspect The ninth possible implementation manner of the fourth aspect, and the tenth possible implementation manner of the fourth aspect,

And a second carrier process group determining module, configured to determine a process invoked on the at least two carriers as a process included in the process group.

According to the eleventh possible implementation manner of the fourth aspect, in a twelfth possible implementation manner, the at least two carriers have different TTI lengths, and the process group feedback time is determined according to a process with a shorter TTI.

According to the twelfth possible implementation manner of the fourth aspect, in the thirteenth possible implementation manner, if the process invoked on the two carriers is determined to be a process included in the process group, the two The product of the number of processes in the process group included in one carrier in the carrier and the length of the ΤΉ of the carrier is equal to the TTI length of the other of the two carriers.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and the fourth possible The implementation manner, the fifth possible implementation manner of the fourth aspect, the sixth possible implementation manner of the fourth aspect, the seventh possible implementation manner of the fourth aspect, and the eighth possible implementation manner of the fourth aspect The ninth possible implementation of the fourth aspect, and the tenth possible implementation of the fourth aspect The present mode, the tenth possible implementation of the fourth aspect, the twelfth possible implementation of the fourth aspect, and the thirteenth possible implementation of the fourth aspect, in the fourteenth possible implementation manner The HARQ acknowledgment information fed back to the base station in the feedback time corresponding to the process group is: joint coding information of HARQ acknowledgment information of each process included in the process group.

In a fifth aspect, an embodiment of the present invention provides a base station, including:

a processor, configured to determine a process group, where the process group includes at least two processes;

The sender is further configured to send a downlink data to the user equipment by using a calling process;

The receiver is configured to receive HARQ acknowledgement information sent by the user equipment at a feedback time corresponding to the process group.

In a first possible implementation manner of the fifth aspect, the processor is further configured to determine the process group according to a time when the process is scheduled; or to determine the process group according to the process ID.

According to a first possible implementation manner of the fifth aspect, in a third possible implementation manner, the time that the process is scheduled includes: a frame number and a subframe number.

According to a first possible implementation manner of the fifth aspect, in a third possible implementation manner, the processor is further configured to satisfy consecutive (n) frame number =0 The sub-frame of the ] and the sub-frame satisfying [(frame number + 5 * sub-frame number) modulo n = l ] until the integer of [ (frame number + 5 * sub-frame number) modulo n = n - l ] is satisfied.

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, the second possible implementation manner of the fifth aspect, and the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner The sender is further configured to send a joint feedback indication message to the user equipment, where the joint feedback indication message is used to indicate that the user equipment performs joint HARQ feedback on the process group, where the process group includes at least two processes. .

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, the second possible implementation manner of the fifth aspect, the third possible implementation manner of the fifth aspect, and the fourth possible In a fifth possible implementation manner, the transmitter is configured to send, to the user equipment, an activation indication or a deactivation indication for the joint feedback indication message, where the activation indication is used to indicate the The user equipment performs joint HARQ feedback on the process group, where the deactivation indication is used to instruct the user not to perform joint HARQ feedback on the process group.

Combining the fifth aspect, the first possible implementation manner of the fifth aspect, the second aspect of the fifth aspect A possible implementation manner, a third possible implementation manner of the fifth aspect, a fourth possible implementation manner of the fifth aspect, and a fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner The joint feedback indication message includes: a process number included in the process group and a calling order of each process in the process group.

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, the second possible implementation manner of the fifth aspect, the third possible implementation manner of the fifth aspect, and the fourth possible aspect of the fifth aspect The implementation manner, the fifth possible implementation manner of the fifth aspect, and the sixth possible implementation manner of the fifth aspect, in the seventh possible implementation manner, the method further includes:

a processor, configured to determine the process according to a number of processes included in the process group, a transmission time slot TTI of a process that is called to send downlink data, and a call sequence in which the process that sends the downlink data is called in the process group The corresponding feedback time of the group; or,

And determining, according to a scheduling time corresponding to the process in which the downlink data is sent in the process group, the feedback time corresponding to the process group.

According to the seventh possible implementation manner of the fifth aspect, in the eighth possible implementation, the scheduling time corresponding to the process that is sent to send the downlink data includes: the process corresponding to the process of sending the downlink data that is called Frame number and subframe number.

According to a seventh possible implementation manner of the fifth aspect, in a ninth possible implementation manner, the processor is further configured to:

Determining an offset TTI of each of the processes according to the number of processes included in the process group and the order in which each process in the process group is called within the process group;

Determining, according to the TTI of the process in the process group that is sent the downlink data, and the corresponding offset TTI, the feedback reference TTI of the process group;

The feedback time of the feedback of the process group with reference to the TTI is determined as the feedback time corresponding to the process group.

With reference to the third possible implementation manner of the fifth aspect, and the eighth possible implementation manner of the fifth aspect, in a tenth possible implementation manner, the processor is further configured to: the processor is further used to: The feedback time of the subframe association satisfying the [(frame number + 5 * subframe number) modulo n = n - l ] relationship is determined as the feedback time corresponding to the process group.

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, the second possible implementation manner of the fifth aspect, the third possible implementation manner of the fifth aspect, and the fourth possible aspect of the fifth aspect The implementation of the energy, the fifth possible implementation of the fifth aspect, the sixth possible implementation of the fifth aspect, the seventh possible implementation of the fifth aspect, and the eighth possible aspect of the fifth aspect An implementation manner, a ninth possible implementation manner of the fifth aspect, and a tenth possible implementation manner of the fifth aspect. In an eleventh possible implementation manner, the processor is further configured to: The process invoked on the carrier is determined to be the process included in the process group.

According to the eleventh possible implementation manner of the fifth aspect, in a twelfth possible implementation manner, the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to a process with a short TTI.

According to the twelfth possible implementation manner of the fifth aspect, in the thirteenth possible implementation manner, if the process invoked on the two carriers is determined to be a process included in the process group, the two The product of the number of processes in the process group included in one carrier in the carrier and the length of the ΤΉ of the carrier is equal to the TTI length of the other of the two carriers.

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, the second possible implementation manner of the fifth aspect, the third possible implementation manner of the fifth aspect, and the fourth possible aspect of the fifth aspect The implementation manner, the fifth possible implementation manner of the fifth aspect, the sixth possible implementation manner of the fifth aspect, the seventh possible implementation manner of the fifth aspect, and the eighth possible implementation manner of the fifth aspect The ninth possible implementation manner of the fifth aspect, the tenth possible implementation manner of the fifth aspect, the tenth possible implementation manner of the fifth aspect, the twelfth possible implementation manner of the fifth aspect, and The thirteenth possible implementation manner of the fifth aspect, in the fourteenth possible implementation manner, the HARQ confirmation information received at a feedback time corresponding to the process group is: each included in the process group The joint encoding information of the HARQ confirmation information of the process.

In a sixth aspect, an embodiment of the present invention provides a user equipment, including:

The receiver is further configured to receive downlink data sent by a process invoked by the base station;

And a transmitter, configured to feed back the HARQ acknowledgement information to the base station at a feedback time corresponding to the process group.

In a first possible implementation manner of the sixth aspect, the processor is further configured to determine the process group according to a time when the process is scheduled; or to determine the process group according to the process ID.

According to the first possible implementation manner of the sixth aspect, in a third possible implementation manner, the time that the process is scheduled includes: a frame number and a subframe number. According to the first possible implementation manner of the sixth aspect, in a third possible implementation manner, the processor is further configured to satisfy consecutive (n) frame number of the (n frame number +5* subframe number) n=0 The sub-frame of the ] and the sub-frame satisfying [(frame number + 5 * sub-frame number) modulo n = l ] until the integer of [ (frame number + 5 * sub-frame number) modulo n = n - l ] is satisfied.

With reference to the sixth aspect, the first possible implementation manner of the sixth aspect, the second possible implementation manner of the sixth aspect, and the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner The receiver is further configured to receive a joint feedback indication message sent by the base station, where the joint feedback indication message is used to indicate that the user equipment performs joint HARQ feedback on the process group, where the process group includes at least two processes. .

With reference to the sixth aspect, the first possible implementation manner of the sixth aspect, the second possible implementation manner of the sixth aspect, the third possible implementation manner of the sixth aspect, and the fourth possible In a fifth possible implementation manner, the receiver is configured to receive an activation indication or a deactivation indication sent by the base station to the joint feedback indication message, where the activation indication is used to indicate the The user equipment performs joint HARQ feedback on the process group, where the deactivation indication is used to instruct the user not to perform joint HARQ feedback on the process group.

With reference to the sixth aspect, the first possible implementation manner of the sixth aspect, the second possible implementation manner of the sixth aspect, the third possible implementation manner of the sixth aspect, and the fourth possible And a fifth possible implementation manner of the sixth aspect, in a sixth possible implementation manner, the joint feedback indication message includes: a process ID included in the process group, and each process in the The order of calls within a process group.

With reference to the sixth aspect, the first possible implementation manner of the sixth aspect, the second possible implementation manner of the sixth aspect, the third possible implementation manner of the sixth aspect, and the fourth possible aspect of the sixth aspect An implementation manner, a fifth possible implementation manner of the sixth aspect, and a sixth possible implementation manner of the sixth aspect. In a seventh possible implementation, the processor is further configured to be used according to the process group The number of processes included, the feedback time corresponding to the transmission time gap TTI group of the process that sends the downlink data; or

And determining, according to a scheduling time corresponding to a process in which the downlink data is sent in the process group, a feedback time corresponding to the process group. According to the seventh possible implementation manner of the sixth aspect, in an eighth possible implementation, the scheduling time corresponding to the process that is sent to send the downlink data includes: the process corresponding to the process of sending the downlink data that is called Frame number and subframe number.

According to a seventh possible implementation manner of the sixth aspect, in a ninth possible implementation manner, the processor is used to:

With reference to the third possible implementation manner of the sixth aspect, and the eighth possible implementation manner of the sixth aspect, in a tenth possible implementation manner, the processor is configured to satisfy [ (frame number + 5 * sub The feedback time of the subframe association of the frame number) modulo n=n-l] relationship is determined as the feedback time corresponding to the process group.

With reference to the sixth aspect, the first possible implementation manner of the sixth aspect, the second possible implementation manner of the sixth aspect, the third possible implementation manner of the sixth aspect, and the fourth possible aspect of the sixth aspect The implementation manner, the fifth possible implementation manner of the sixth aspect, the sixth possible implementation manner of the sixth aspect, the seventh possible implementation manner of the sixth aspect, and the eighth possible implementation manner of the sixth aspect The ninth possible implementation manner of the sixth aspect, and the tenth possible implementation manner of the sixth aspect, in an eleventh possible implementation manner, the processor is further configured to send the at least two carriers The process is determined to be the process included in the process group.

According to the eleventh possible implementation manner of the sixth aspect, in a twelfth possible implementation manner, the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to a process with a short TTI.

According to the twelfth possible implementation manner of the sixth aspect, in the thirteenth possible implementation manner, if the process invoked on the two carriers is determined to be a process included in the process group, the two The product of the number of processes in the process group included in one carrier in the carrier and the length of the ΤΉ of the carrier is equal to the TTI length of the other of the two carriers.

Combining the sixth aspect, the first possible implementation manner of the sixth aspect, and the second aspect of the sixth aspect Possible implementation, a third possible implementation of the sixth aspect, a fourth possible implementation of the sixth aspect, a fifth possible implementation of the sixth aspect, and a sixth possible aspect of the sixth aspect The implementation manner, the seventh possible implementation manner of the sixth aspect, the eighth possible implementation manner of the sixth aspect, the ninth possible implementation manner of the sixth aspect, and the tenth possible implementation manner of the sixth aspect The tenth possible implementation manner of the sixth aspect, the twelfth possible implementation manner of the sixth aspect, and the thirteenth possible implementation manner of the sixth aspect, The HARQ acknowledgment information fed back to the base station at the feedback time corresponding to the process group is: joint coding information of HARQ acknowledgment information of each process included in the process group.

The hybrid automatic repeat request feedback method, the base station, and the user equipment provided by the embodiment of the present invention send a joint feedback indication message to the user equipment by the base station, and instruct the user equipment to perform joint HARQ feedback on the process group including at least two processes, when the base station invokes After the process in the process group sends the downlink data to the user equipment, the base station receives the HARQ acknowledgement information sent by the user equipment in the feedback time corresponding to the process group, thereby reducing the power required for the HARQ feedback. DRAWINGS

The drawings used in the embodiments or the description of the prior art are briefly described. It is obvious that the drawings in the following description are some embodiments of the present invention, and are not creative to those skilled in the art. Other drawings can also be obtained from these drawings on the premise of labor.

1 is a flowchart of Embodiment 1 of a hybrid automatic repeat request feedback method according to the present invention;

2 is a flowchart of Embodiment 2 of a hybrid automatic repeat request feedback method according to the present invention;

3 is a flowchart of Embodiment 3 of a hybrid automatic repeat request feedback method according to the present invention;

4 is a flowchart of Embodiment 4 of a hybrid automatic repeat request feedback method according to the present invention;

5 is a flowchart of Embodiment 5 of a hybrid automatic repeat request feedback method according to the present invention;

6 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention;

7 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention;

8 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention;

9 is a schematic structural diagram of Embodiment 4 of a base station according to the present invention;

10 is a schematic structural diagram of Embodiment 5 of a user equipment according to the present invention; 11 is a schematic structural diagram of Embodiment 6 of a user equipment according to the present invention;

12 is a schematic structural diagram of Embodiment 7 of a user equipment according to the present invention;

13 is a schematic structural diagram of Embodiment 8 of a user equipment according to the present invention;

14 is a schematic diagram of Embodiment 2 of a hybrid automatic repeat request feedback method according to the present invention;

15 is a schematic diagram of Embodiment 4 of a hybrid automatic repeat request feedback method according to the present invention;

16 is a schematic structural diagram of Embodiment 9 of a base station according to the present invention;

FIG. 17 is a schematic structural diagram of Embodiment 10 of the user equipment of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. 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.

The techniques described herein can be used in a variety of communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as the Global System for Mobile Communications (GSM, Global System for

Mobile communications ) , Code Division Multiple Access ( CDMA, Code Division Multiple

Access system, time division multiple access (TDMA, Time Division Multiple Access) system, wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access

Wireless), Frequency Division Multiple Addressing (FDMA) system, Orthogonal Frequency-Division Multiple Access (OFDMA) system, single carrier FDMA (SC-FDMA) system, general packet radio service ( GPRS (General Packet Radio Service) system, Long Term Evolution (LTE) system, and other such communication systems.

The user equipment involved in the present application may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or a wireless modem. Other processing equipment. The wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal Computer, for example, can be portable, pocket, handheld, computing Built-in or in-vehicle mobile devices that exchange language and/or data with the wireless access network. example

^, Personal Communication Service (PCS), telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), etc. device. A wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

The base station involved in the present application is a generalized base station, including a radio resource management and data scheduling function, and may include a radio network controller (RNC), and may also include one or more on the air interface in the access network. A device that communicates with a wireless terminal. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.

The serial numbers of the following embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. FIG. 1 is a flowchart of Embodiment 1 of a hybrid automatic repeat request feedback method according to the present invention. As shown in FIG. 1 , the implementation body of the hybrid automatic repeat request feedback method provided by the embodiment of the present invention is a base station, and may specifically include a radio network controller (Radio Network Controller, RNC for short) and a NodeB. The request feedback method includes:

S101. The base station determines a process group.

Specifically, the operation of S101 may be performed by an RNC in the base station. The determining process group may determine the process group for the RNC according to the process ID. Optionally, the RNC sends a joint feedback indication message to the user equipment, where the joint feedback indication message may be used to indicate that the user equipment performs joint HARQ feedback on the process group, and the process group It includes at least two processes. Optionally, the joint feedback indication message may also carry process information included in one or more process groups. For example, the process (0, 1) constitutes a process group, and the process (2, 3) constitutes a process group, and the process (4, 5) constitute a process group; or The process (0,1) constitutes a process group, the process (2,3,4) constitutes a process group, and the process 5 is a separate process. The number of processes in each of the foregoing process groups may be the same or different, and the embodiment of the present invention does not limit this.

Further, the determining process group may also determine, for the RNC, the process group according to the scheduled time of the process, and the scheduled time of the process may include a frame number and a subframe number. The base station will continuously satisfy n subframes satisfying [(frame number + 5 * subframe number) modulo n = 0] and subframes satisfying [(frame number + 5 * subframe number) modulo n = 1] until satisfies [ The process scheduled on the subframe of (frame number + 5 * subframe number) modulo n = nl] is determined as the process included in the process group, where n is an integer greater than or equal to 2.

Optionally, the joint feedback indication message may also be an implicit transmission. For example, when a certain feature is configured, the joint feedback is implicitly started. For example, if the multi-carrier feature is configured, the user is instructed to initiate the joint feedback.

Optionally, after the base station sends the joint feedback indication message to the user equipment, the base station may further send an activation indication or a deactivation indication to the user equipment, where the base station may send an activation indication or a deactivation indication to the user equipment. .

The activation indication may be used to indicate that the user equipment performs joint HARQ feedback on the process group, and the deactivation indication may be used to indicate that the user does not perform joint HARQ feedback on the process group. In this step, after the base station sends the joint feedback indication message to the user equipment, the base station may further determine whether to send an activation indication or a deactivation indication to the user feedback device to the user equipment according to the specific situation, for example, when the number of user equipments is small, The base station may send a deactivation indication to the user equipment to the joint feedback indication message. When the number of user equipments is large, the base station may send an activation indication to the user equipment to the joint feedback indication message.

S102. The base station invoking process sends downlink data to the user equipment.

Specifically, the downlink data may be sent to the user equipment by the NodeB calling process. The NodeB may first determine which processes belong to a process group, and the process group information included in each process may be pre-defined by the air interface protocol, or may be indicated in the joint feedback indication message sent by the base station to the user equipment, and may also be determined by the NodeB. Sent to the RNC. In this step, it is assumed that the processes N, S, and T are a process group, and the NodeB can continuously schedule the N, S, and T processes, or continuously schedule the S, T processes, or only the T process, that is, the NodeB can be called. One or more processes within the process group send downlink data to the user equipment. The embodiments of the present invention do not limit this.

This embodiment does not limit the order of the above S101 and S102. S103. The base station receives the HARQ acknowledgement information sent by the user equipment at a feedback time corresponding to the process group.

Specifically, the NodeB may receive the HARQ acknowledgement information sent by the user equipment at the feedback time corresponding to the process group. The feedback time corresponding to the process group may be determined by the base station according to a Transmission Time Interval (TTI) corresponding to the scheduled process in the process group; or may be performed by the base station according to the scheduled process in the process group. Corresponding frame number and subframe number are determined; or, may be determined by the base station according to at least two carriers scheduled in the process group.

In the hybrid automatic repeat request feedback method provided by the embodiment, the base station sends a joint feedback indication message to the user equipment, and the user equipment is instructed to perform joint HARQ feedback on the process group including at least two processes, and the process in the process group is invoked by the base station. After the user equipment sends the downlink data, the base station can receive the HARQ acknowledgement information sent by the user equipment at the feedback time corresponding to the process group, thereby reducing the power required for the HARQ feedback. FIG. 2 is a flowchart of Embodiment 2 of a hybrid automatic repeat request feedback method according to the present invention. As shown in FIG. 2, the implementation scenario provided by the embodiment is as follows: The base station invokes a process in the process group of the single carrier to send downlink data to the user equipment, and the user equipment sends the HARQ acknowledgement information to the base station in the feedback time corresponding to the process group. The feedback time is determined by the TTI of the process within the process group. The hybrid automatic repeat request feedback method of this embodiment includes:

5201. The RNC determines the process group.

Optionally, the RNC determines that the process group can determine the process group for the RNC according to the process ID, that is, the RNC sends a joint feedback indication message to the user equipment, where the joint feedback indication message may include: The indication message is configured with the function of joint feedback for the user equipment.

S202. The NodeB sends an activation indication or a deactivation indication to the user equipment to the joint feedback indication message.

In this step, when the number of user equipments is large, the NodeB may send an activation indication to the user equipment to activate the joint feedback function. When the number of users is small, the NodeB may send a deactivation indication to the user equipment to disable the joint feedback function. The NodeB may decide to send an activation indication or an activation indication to the user equipment according to specific conditions. 5203. The NodeB invokes a process in the process group to send downlink data to the user equipment.

5204. The NodeB determines an offset TTI of each process according to the number of processes included in the process group and the scheduling order of each process in the process group in the process group.

Specifically, the offset ΤΤΙ of each process satisfies [number of processes - scheduling order]. Assume that the process Ν, S, Τ is a process group, Ν, S, 调度 the scheduling order in the process group is 1, 2, 3, then the number of processes included in the process group is 3, the offset of each process ΤΤΙ can be [3—scheduling order], that is, the offsets of processes Ν, S, Τ are ² , 1, and 0 in order.

S205: The NodeB determines a feedback reference TTI of the process group according to the TTI of the process in which the downlink data is sent in the process group and the corresponding offset TTI.

Specifically, the NodeB can determine the feedback reference TTI corresponding to the process group according to any called process in the process group, and the feedback reference TTI satisfies [the TTI of the called process + the offset TTI of the process]. Assume that the process Ν, S, Τ is a group, only the S process is called, the offset ΤΤΙ of the S process is 1 , and the feedback reference TTI of the B' J S process is [TTI+1 of the S process].

5206. The NodeB determines the feedback time of the TIM association by the feedback of the process group as the feedback time corresponding to the process group.

Specifically, the feedback time of the feedback reference TTI association is a time point after the first predetermined time after the feedback reference TTI, and the feedback time corresponding to each process in the process group is the same, so it may be according to any process scheduled in the process group. Determine the feedback time point for this process group. The feedback reference time of the TTI association is the first predetermined time point after the feedback reference TTI, and may be a High-Speed Dedicated Physical Control Channel (HS-DPCCH) corresponding to 7.5 slots. The location of the process, ie, the feedback time corresponding to the process group.

The user equipment also needs to determine the feedback corresponding to the process group, and the determination process and method are the same as the above S203-S206.

5207. The NodeB receives the HARQ acknowledgement information sent by the user equipment in the feedback time corresponding to the process group.

FIG. 14 is a schematic diagram of Embodiment 2 of a hybrid automatic repeat request feedback method according to the present invention. As shown in Figure 14, the process group includes two processes (0, 1), which jointly encodes the feedback information of process 0 and process 1, and then the user equipment sends HARQ confirmation information to the NodeB.

Specifically, if the NodeB schedules the user equipment, and after scheduling a process of the process group, it is found that the user data has been sent. At this time, if the user equipment is still required to wait according to the above steps, The feedback time of the process group is fed back. In order to speed up the feedback, the NodeB can instruct the user equipment to immediately perform feedback.

In the joint feedback information involved in the embodiment, each process in the process group may use a joint coding mode. Specifically, a fixed mapping relationship may exist between the codewords fed back by each process and the process call order in the process group. The bit length of the codeword is independent of the number of processes that need to be fed back. In the embodiment of the present invention, two processes in the group are taken as an example, and w _Q -w _{9 is} fed back as a feedback 10-bit codeword, and the acknowledgement (ACK) is performed. Negative (NACK) feedback information for the corresponding process group, as shown in the following table:

In the hybrid automatic repeat request feedback method provided by the embodiment of the present invention, the RNC sends a joint feedback indication message to the user equipment, instructing the user equipment to perform joint HARQ feedback on the process group including at least two processes, and the NodeB sends the joint to the user equipment. The activation indication or the deactivation indication of the feedback indication message indicates whether the user equipment enables the joint feedback function. After the NodeB calls the process in the process group to send the downlink data to the user equipment, the NodeB calculates the feedback time corresponding to the process group, and the process is in the process. The feedback time corresponding to the group accepts the HARQ acknowledgement information sent by the user equipment, thereby reducing the power required for the HARQ feedback. FIG. 3 is a flowchart of Embodiment 3 of a hybrid automatic repeat request feedback method according to the present invention. As shown in FIG. 3, the implementation scenario provided by the implementation is as follows: The base station invokes a process in the process group of the single carrier to send downlink data to the user equipment, and the user equipment sends the HARQ acknowledgement information to the base station in the feedback time corresponding to the process group. The feedback time is determined by the feedback time corresponding to the subframe of the calling process in the process group. Ben The hybrid automatic repeat request feedback method of the embodiment of the invention includes:

5301. The RNC determines the process group.

S302: The NodeB sends an activation indication or a deactivation indication to the user equipment to the joint feedback indication message.

The foregoing S301 and S302 are similar to the S201 and S202 in the embodiment of the present invention, and the embodiments of the present invention are not described herein again.

5303. The NodeB determines a process scheduled in consecutive n subframes as a process included in the process group. Specifically, one frame is divided into five subframes, each subframe corresponds to one TTI, and each TTI can transmit one HARQ process, and the NodeB will satisfy n consecutive [[frame number+5*subframe number] modulo n= 0] is a sub-frame and a sub-frame satisfying [(frame number + 5 * sub-frame number) modulo n = l] until scheduling on [(frame number + 5 * sub-frame number) modulo n = nl] The process is determined to be a process included in the process group, where n is an integer greater than or equal to 2.

For example, assuming that the number of processes included in the process group of the joint feedback is 2, the NodeB will satisfy [(frame number + 5 * subframe number) modulo 2 = 0] and satisfy [(frame number + 5 * subframe number) The process scheduled on consecutive 2 subframes of modulo 2 = 1] is determined as the process included in the process group.

5304. The NodeB determines a feedback time corresponding to the process group according to a scheduling time corresponding to a process in which the downlink data is sent. The frame number and subframe number corresponding to the process that sends the downlink data.

Optionally, the NodeB determines the feedback time of the subframe association that satisfies the [(frame number + 5 * subframe number) modulo n = n - l] relationship as the feedback time corresponding to the process group. Specifically, if the frame number and the subframe number corresponding to the currently scheduled process are SFN1 and SubSFN1, respectively, the feedback time point corresponding to the process should be [(SFN+5*SubSFN) modulo n=nl], and [(SFN +5*SubSFN)] is the first feedback feedback time point of the child 大于 greater than or equal to (SFN 1 +5 * SubSFN 1 ), and the BPB uses the associated feedback time point as the feedback time corresponding to the process group, at which time Joint feedback of HARQ confirmation information for all processes in the process group.

5305. The NodeB invokes a process in the process group to send downlink data to the user equipment.

5306. The NodeB receives the HARQ acknowledgement information sent by the user equipment in the feedback time corresponding to the process group. The data of the received HARQ process is jointly fed back, and the HARQ confirmation information is sent to the NodeB. In this embodiment, two processes in the group are taken as an example. Wo-w ₉ feeds back the feedback 10-bit codeword, and the acknowledgement (ACK)-negation (NACK) corresponds to the feedback information of the process group, as shown in the following table:

Further, if the NodeB schedules the user equipment, it is assumed that a process that does not correspond to the subframe number is scheduled, that is, the process group includes two consecutive subframes, and after the first subframe is scheduled. After the user data is sent, the user equipment still needs to wait for the feedback time of the next subframe to feedback. In order to speed up the feedback, the NodeB can instruct the user equipment to immediately feedback.

The hybrid automatic repeat request feedback method provided by the embodiment of the present invention reduces the power required for HARQ feedback by jointly feeding back a single carrier n consecutive subframes. FIG. 4 is a flowchart of Embodiment 4 of a hybrid automatic repeat request feedback method according to the present invention. As shown in FIG. 4, the implementation provided in this embodiment provides an implementation scenario in which: a base station invokes a process in a process group in a multi-carrier to send downlink data to a user equipment, and the user equipment sends a HARQ to the base station in a feedback time corresponding to the process group. Confirmation information. The hybrid automatic repeat request feedback method in the embodiment of the present invention includes:

5401. The RNC determines the process group.

S402: The NodeB sends an activation indication or a deactivation indication to the user equipment to the joint feedback indication message. 5403. The NodeB determines, as the process included in the process group, the process invoked on the at least two carriers. Specifically, the TTI lengths of the at least two carriers are different. If the base station determines the process invoked on the two carriers as the process included in the process group, the number of processes in the process group included in one of the two carriers is The product of the ΤΉ length of the carrier is equal to the TTI length of the other of the two carriers.

5404. The NodeB invokes a process in the process group to send downlink data to the user equipment.

S405: The NodeB receives the HARQ acknowledgement information sent by the user equipment in the feedback time corresponding to the process group.

Specifically, the HARQ acknowledgement information received by the base station at the feedback time corresponding to the process group may be: joint coding information of each process included in the process group.

Further, since it is sometimes necessary to perform joint feedback between multiple carriers, and the TTI lengths of the multiple carriers are different, for example, the Universal Mobile Telecommunications System (UMTS) has a feedback TTI of at least 2 ms, and LTE The feedback TTI is a minimum of 1 ms. Therefore, in order to jointly feed back the HARQ acknowledgment information of one carrier of the UMTS and one carrier of the LTE on the UMTS, the feedback information of two consecutive processes of the LTE and one process of the UMTS needs to be jointly fed back. Therefore, the NodeB can receive the HARQ acknowledgment information sent by the user equipment in the feedback time corresponding to the process group. The LTE two process scheduling occupation time is the same as the UMTS 1 carrier occupation time. In this case, one process group includes two carriers and three processes. Feedback information, the feedback time of the process group is the feedback time point associated with the process corresponding to the carrier of the longer TTI.

FIG. 15 is a schematic diagram of Embodiment 4 of a hybrid automatic repeat request feedback method according to the present invention. As shown in Figure 15, the two processes L0 and L1 of LTE are first determined as a group, and then fed back with the feedback information of a process U0 of the UMTS, that is, ACK (U0, L0, L1) in the figure, so that the NodeB The HARQ confirmation information sent by the user equipment may be received in the feedback time corresponding to the process group.

The hybrid automatic repeat request feedback method provided by the embodiment of the present invention performs joint feedback on carriers with different lengths, thereby reducing the power required for HARQ feedback. FIG. 5 is a flowchart of Embodiment 5 of a hybrid automatic repeat request feedback method according to the present invention. As shown in FIG. 5, the user equipment (User Equipment, UE for short) of the hybrid automatic repeat request feedback method provided by this embodiment is shown. The hybrid automatic repeat request feedback method in the embodiment of the present invention includes: 5501. The user equipment determines a process group.

Specifically, the user equipment receives the joint feedback indication message sent by the RNC, and the joint feedback indication

S502. The user equipment receives an activation indication or a deactivation indication of the joint feedback indication message sent by the base station.

Specifically, the activation indication is used to instruct the user equipment to perform the joint process group

The deactivation indication is used to instruct the user not to perform joint HARQ feedback on the process group.

S503. The user equipment receives downlink data sent by a process invoked by the base station.

S504: The user equipment feeds back the HARQ acknowledgement information to the base station in the feedback time corresponding to the process group. Specifically, when the user equipment receives the downlink data sent by the process invoked by the base station in a continuous period of time, the HARQ acknowledgement information may be fed back to the base station in a joint coding manner according to the feedback time corresponding to the process group.

In the joint feedback information in the embodiment of the present invention, each process in the process group may use the joint coding mode. In the embodiment of the present invention, two processes in the group are taken as an example, and the WQ-W ₉ feedback is 10 bits of feedback. Codeword, Acknowledgment (ACK) - Negative (NACK) corresponds to the feedback information of the process group, as shown in the following table:

In the hybrid automatic repeat request feedback method provided by the embodiment of the present invention, the user equipment receives the joint feedback indication message sent by the base station, and receives an activation indication or a deactivation indication of the joint feedback indication message, where the feedback time corresponding to the process group is Joint coding method to feed HARQ to the base station Confirm the information to reduce the power required for HARQ feedback. FIG. 6 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention. As shown in FIG. 6, the base station provided by the embodiment of the present invention includes: a first process group determining module 11, a data sending module 12, and a receiving acknowledgement information module 13.

The first process group determining module 11 is configured to determine a process group, where the process group includes at least two processes.

The data sending module 12 is configured to send the downlink data to the user equipment by the base station calling process, and the receiving acknowledgement information module 13 is configured to receive the HARQ acknowledgement information sent by the user equipment by the base station in the feedback time corresponding to the process group.

The base station of the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. 1. The implementation principle and the technical effects are similar, and details are not described herein again.

FIG. 7 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention. As shown in FIG. 7, the base station provided by the embodiment of the present invention includes: a first process group determining module 21, a joint feedback indication sending module 22, an activation or deactivation indication sending module 23, and a data sending module 24, where the first process feedback time is determined. Module 25 and receive confirmation information module 29.

The joint feedback indication sending module 22 is configured to send, by the base station, a joint feedback indication message to the user equipment, where the joint feedback indication message is used to indicate that the user equipment performs joint HARQ feedback on the process group, where the process group includes at least two processes;

Further, the first process group determining module 21 includes: a process group determining unit, configured to determine the process group according to the process number.

Further, the first process feedback time determining module includes: a first offset TTI determining unit 26, a first feedback reference TTI determining unit 27, and a first process feedback time determining unit 28.

Specifically, the first offset TTI determining unit 26 is configured to determine, by the base station, an offset TTI of each process according to the number of processes included in the process group and the calling sequence of each process in the process group in the process group;

The first feedback reference TTI determining unit 27 is configured to determine, by the base station, a feedback reference TTI of the process group according to the TTI of the process in which the downlink data is sent in the process group and the corresponding offset TTI; the first process feedback time determining unit 28 And determining, by the base station, the feedback time of the feedback reference TTI association of the process group as the feedback time corresponding to the process group. The base station of the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 8 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention. As shown in FIG. 8, the base station provided by the embodiment of the present invention includes: a first process group determining module 31, a joint feedback indication sending module 32, an activation or deactivation indication sending module 33, and a first continuous subframe determining unit 34, The subframe feedback time determination module 35, the data transmission module 37, and the reception confirmation information module 38.

The first process group determining module 31 includes: a process group determining unit, configured to determine the process group according to a time when the process is scheduled.

The first contiguous subframe determining unit 34 is configured to: the base station shall continuously satisfy n subframes satisfying [(frame number + 5 * subframe number) modulo n = 0] and satisfy [(frame number + 5 * subframe number) mode a subframe of n=l] until a process scheduled in a subframe satisfying [(frame number + 5 * subframe number) modulo n = n - l ] is determined as a process included in the process group, where n is greater than An integer equal to 2;

The first subframe feedback time determining module 35 is configured to determine, by the base station, a feedback time corresponding to the process group according to the frame number and the subframe number corresponding to the process in which the downlink data is sent in the process group.

Further, the first subframe feedback time determining module 35 includes: a first subframe feedback time determining unit 36, configured to use a subframe that satisfies the relationship of [(frame number + 5 * subframe number) modulo n=n-l] The associated feedback time is determined as the feedback time corresponding to the process group.

The base station of the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 9 is a schematic structural diagram of Embodiment 4 of a base station according to the present invention. As shown in FIG. 9, the base station provided by the embodiment of the present invention includes: a first process group determining module 41, a joint feedback indication sending module 42, an activation or deactivation indication sending module 43, a first carrier process group determining module 44, and data sending. Module 45 and receive confirmation information module 46.

The first carrier process group determining module 44 is configured to determine, by the base station, a process invoked on the at least two carriers as a process included in the process group.

Further, the TTI lengths of the at least two carriers are different. If the base station determines the process invoked on the two carriers as the process included in the process group, the number of processes in the process group included in one of the two carriers is The product of the TTI length of the carrier is equal to the TTI length of the other of the two carriers.

The base station of the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. The implementation principle and technical effects are similar, and will not be described here.

FIG. 10 is a schematic structural diagram of Embodiment 5 of a user equipment according to the present invention. As shown in FIG. 10, the user equipment provided by the embodiment of the present invention includes: a second process group determining module 51, a data receiving module 52, and a sending acknowledgement information module 53.

The second process group determining module 51 is configured to determine a process group, where the process group includes at least two processes;

The data receiving module 52 is configured to receive downlink data sent by a process invoked by the base station;

The sending confirmation information module 53 is configured to feed back the HARQ confirmation information to the base station at the feedback time corresponding to the process group.

Further, the determining the process group includes receiving a joint feedback indication message sent by the base station, where the joint feedback indication message includes: a process number included in the process group and a calling sequence of each process in the process group.

The user equipment of the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 11 is a schematic structural diagram of Embodiment 6 of a user equipment according to the present invention. As shown in FIG. 11, the user equipment provided by the embodiment of the present invention includes: a second process group determining module 61, a joint feedback indication receiving module 62, an activation or deactivation indication receiving module 63, a data receiving module 64, and a second process feedback time. The determination module 65 and the transmission confirmation information module 69.

The joint feedback indication receiving module 62 is configured to receive, by the user, a joint feedback indication message sent by the base station, where the joint feedback indication message is used to indicate that the user equipment performs joint HARQ feedback on the process group, where the process group includes at least two processes;

The second process feedback time determining module 65 is configured to determine, according to the number of processes included in the process group, the transmission time slot TTI of the process that is called to send the downlink data, and the calling sequence of the process that sends the downlink data in the process group. The feedback time corresponding to the process group.

Further, the second process feedback time determining module 65 includes: a second offset TTI determining unit

66. The second feedback reference TTI determining unit 67 and the second process feedback time determining unit 68.

Specifically, the second offset TTI determining unit 66 is configured to determine, by the base station, an offset TTI of each process according to the number of processes included in the process group and the calling sequence of each process in the process group in the process group;

The second feedback reference TTI determining unit 67 is configured to send, by the base station, according to any call in the process group. The TTI of the process of the downlink data and the corresponding offset TTI determine the feedback reference TTI of the process group; the second process feedback time determining unit 68 is configured to determine, by the base station, the feedback time of the feedback reference TTI associated with the process group as the process group corresponding Feedback time.

The user equipment of the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 12 is a schematic structural diagram of Embodiment 7 of a user equipment according to the present invention. As shown in FIG. 12, the user equipment provided by the embodiment of the present invention includes: a second process group determining module 71, a joint feedback indication receiving module 72, an activation or deactivation indication receiving module 73, and a second consecutive subframe determining unit 74. The two subframe feedback time determining module 75, the data receiving module 77, sends a confirmation information module 78.

The second process group determining module 71 includes: a process group determining unit, configured to determine the process group according to a time when the process is scheduled.

The second consecutive subframe determining unit 74 is configured to: the base station shall continuously satisfy n subframes satisfying [(frame number + 5 * subframe number) modulo n = 0] and satisfy [(frame number + 5 * subframe number) mode a subframe of n=l] until a process scheduled in a subframe satisfying [(frame number + 5 * subframe number) modulo n = n - l ] is determined as a process included in the process group, where n is greater than An integer equal to 2;

The second subframe feedback time determining module 75 is configured to determine, by the base station, a feedback time corresponding to the process group according to the frame number and the subframe number corresponding to the process in which the downlink data is sent in the process group.

Further, the second subframe feedback time determining module 75 includes a second subframe feedback time determining unit 76 for using a sub-satisfying [(frame number + 5 * subframe number) modulo n=n-l] relationship The feedback time of the frame association is determined as the feedback time corresponding to the process group.

The user equipment of the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 13 is a schematic structural diagram of Embodiment 8 of a user equipment according to the present invention. As shown in FIG. 13, the user equipment provided by the embodiment of the present invention includes: a second process group determining module 81, a joint feedback indication receiving module 82, an activation or deactivation indication receiving module 83, a second carrier process group determining module 84, and data. The receiving module 85 sends a confirmation information module 86.

The second carrier process group determining module 84 is configured to determine, by the base station, a process that is invoked on the at least two carriers as a process included in the process group.

Further, the TTI lengths of the at least two carriers are different. If the base station determines the process invoked on the two carriers as the process included in the process group, the process included in one of the two carriers The product of the number of processes in the group and the TTI length of the carrier is equal to the TTI length of the other of the two carriers.

The user equipment in the embodiment of the present invention may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 16 is a schematic structural diagram of Embodiment 9 of a base station according to the present invention. As shown in FIG. 14, the base station provided by the embodiment of the present invention includes: a processor 1001, a transmitter 1002, and a receiver 1003.

The processor 1001 is configured to determine a process group, where the process group includes at least two processes, and the sender 1002 is configured to invoke the process to send downlink data to the user equipment.

The receiver 1003 is configured to receive HARQ acknowledgement information sent by the user equipment at a feedback time corresponding to the process group.

The base station of this embodiment may be used to perform the technical solution of the method embodiment shown in any of FIG. 1 to FIG. 4, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

FIG. 17 is a schematic structural diagram of Embodiment 10 of a user equipment according to the present invention. As shown in FIG. 15, the user equipment provided by the embodiment of the present invention includes: a processor 2001, a receiver 2002, and a transmitter 2003.

a processor 2001, configured to determine a process group, where the process group includes at least two processes;

The receiver 2002 is configured to receive downlink data sent by a process invoked by the base station;

The transmitter 2003 is configured to feed back HARQ acknowledgement information to the base station at a feedback time corresponding to the process group. The user equipment of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principles and technical effects thereof are similar, and details are not described herein again.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The method includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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

claims

1. A hybrid automatic retransmission request feedback method, characterized by including:

The base station determines a process group, and the process group includes at least two processes;

The base station calls the process to send downlink data to the user equipment;

The base station receives the HARQ confirmation information sent by the user equipment at the feedback time corresponding to the process group.

2. The method according to claim 1, wherein the determining the process group includes: the base station determines the process group according to the time when the process is scheduled; or, the base station determines the process according to the process number. Group.

3. The method according to claim 2, characterized in that the time when the process is scheduled includes: a frame number and a subframe number.

4. The method according to claim 2, characterized in that the base station determines the process group according to the time when the process is scheduled, including:

The base station will continue n subframes satisfying [(frame number + 5*subframe number) modulo n=0], subframes satisfying [(frame number +5*subframe number) modulo n=l], until The process scheduled on the subframe that satisfies [(frame number + 5*subframe number) modulo n=n-l] is determined to be the process included in the process group, where n is greater than or equal to 2

5. The method according to any one of claims 1 to 4, characterized in that, before the base station calling process sends downlink data to the user equipment, it further includes:

The base station sends a joint feedback indication message to the user equipment. The joint feedback indication message is used to instruct the user equipment to perform joint HARQ feedback on the process group, and the process group includes at least two processes.

6. The method according to any one of claims 1 to 5, characterized in that, after the base station sends the joint feedback indication message to the user equipment, it further includes:

The base station sends an activation instruction or a deactivation instruction to the joint feedback instruction message to the user equipment. The activation instruction is used to instruct the user equipment to perform joint HARQ feedback on the process group, or the deactivation instruction. Used to instruct the user not to perform joint HARQ feedback on the process group.

7. The method according to any one of claims 1 to 6, characterized in that the joint feedback indication message includes: Calling order.

8. The method according to any one of claims 1 to 7, characterized in that the base station determines the process group feedback time, including:

The base station determines the feedback time corresponding to the process group based on the number of processes included in the process group and the order in which they are called to send downlink data; or,

The base station determines the feedback time corresponding to the process group according to the scheduling time corresponding to the process called to send downlink data.

9. The method according to claim 8, wherein the scheduling time corresponding to the process called to send downlink data includes: the frame number and subframe number corresponding to the process called to send downlink data.

10. The method according to claim 8, characterized in that, the base station determines the number of processes in the process group according to the number of processes included in the process group, the TTI of the process called to send downlink data, and the number of processes called to send downlink data in the process. The calling order within the group determines the feedback time corresponding to the process group, including:

The base station determines the offset TTI of each process according to the number of processes included in the process group and the calling order of each process in the process group;

The base station determines the feedback reference TTI of the process group based on the TTI of any process in the process group that is called to send downlink data and its corresponding offset TTI;

The base station determines the feedback time associated with the feedback reference TTI of the process group as the feedback time corresponding to the process group.

11. The method according to claim 4 or 9, characterized in that the base station determines the feedback time corresponding to the process group based on the frame number and subframe number corresponding to the process called to send downlink data, including:

The base station determines the feedback time associated with the subframe that satisfies the relationship [(frame number + 5*subframe number) modulo n=n-l] as the feedback time corresponding to the process group.

12. The method according to any one of claims 1 to 11, further comprising: the base station determining processes called on at least two carriers as processes included in the process group.

13. The method according to claim 12, characterized in that: the at least two carriers TTI lengths are different, and the process group feedback time is determined according to the process with a shorter TTI.

14. The method according to claim 13, wherein if the base station determines a process called on two carriers as a process included in the process group, then one of the two carriers includes The product of the number of processes in the process group and the ΤΉ length of the carrier is equal to the ΤΉ length of the other of the two carriers.

15. The method according to any one of claims 1 to 14, characterized in that, the HARQ confirmation information received by the base station at the feedback time corresponding to the process group is: each process included in the process group Joint encoding information of the HARQ acknowledgment information.

16. A hybrid automatic retransmission request feedback method, characterized by including:

The user equipment determines a process group, and the process group includes at least two processes;

The user equipment receives downlink data sent by the process called by the base station;

The user equipment feeds back the HARQ confirmation information to the base station at the feedback time corresponding to the process group.

17. The method according to claim 16, wherein the determining the process group includes: the user equipment determines the process group according to the time when the process is scheduled; or, the base station determines the process group according to the process number. Process group.

18. The method according to claim 17, wherein the time at which the process is scheduled includes: a frame number and a subframe number.

19. The method according to claim 17, wherein the user equipment determines the process group according to the time when the process is scheduled, including:

The user equipment will have n consecutive subframes that satisfy [(frame number+5*subframe number) modulo n=0] and subframes that satisfy [(frame number+5*subframe number) modulo n=l], Until an integer satisfying [(frame number+5*subframe number) modulo n=n-l] is satisfied.

20. The method according to any one of claims 16 to 19, characterized in that before the user equipment receives the downlink data sent by the process called by the base station, it further includes:

The user equipment receives a joint feedback indication message sent by the base station. The joint feedback indication message is used to instruct the user equipment to perform joint HARQ feedback on the process group, and the process group includes at least two processes.

21. The method according to any one of claims 16-20, characterized in that: the user device After the equipment receives the joint feedback indication message sent by the base station, it also includes:

The user equipment receives an activation indication or a deactivation indication for the joint feedback indication message sent by the base station, and the activation indication is used to instruct the user equipment to perform joint processing of the process group.

HARQ feedback, or the deactivation indication is used to instruct the user not to perform joint HARQ feedback on the process group.

22. The method according to any one of claims 16-21, characterized in that the calling order within the combined response.

23. The method according to any one of claims 16-22, characterized in that the user equipment determines the process group feedback time, including:

The user equipment determines the process group based on the number of processes included in the process group, the transmission time interval TTI of the process called to send downlink data, and the calling order of the process called to send downlink data in the process group. Corresponding feedback time; or,

The user equipment determines the scheduling time corresponding to the process group based on the feedback time corresponding to the process called to send downlink data.

24. The method according to claim 23, characterized in that the scheduling time corresponding to the process called to send downlink data includes: the frame number and subframe number corresponding to the process called to send downlink data.

25. The method according to claim 23, wherein the user equipment determines the number of processes included in the process group, the TTI of the process called to send downlink data, and the process called to send downlink data. The calling order within the process group determines the feedback time corresponding to the process group, including:

The user equipment determines the offset TTI of each process according to the number of processes included in the process group and the calling order of each process in the process group;

The user equipment determines the feedback reference TTI of the process group based on the TTI of any process in the process group that is called to send downlink data and its corresponding offset TTI;

The user equipment determines the feedback time associated with the feedback reference TTI of the process group as the feedback time corresponding to the process group.

26. The method according to claim 19 or 24, characterized in that, the user equipment determines the process group corresponding to the frame number and subframe number corresponding to the process called to send downlink data. Feedback time, including:

The user equipment determines the feedback time associated with the subframe that satisfies the [(frame number + 5*subframe number) modulo n=n-l] relationship as the feedback time corresponding to the process group.

27. The method according to any one of claims 19 to 26, further comprising: the user equipment determines processes called on at least two carriers as processes included in the process group.

28. The method according to claim 27, wherein the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to the process with a shorter TTI.

29. The method according to claim 28, wherein if the user equipment determines the process called on two carriers as a process included in the process group, then one of the two carriers is The product of the number of processes included in the process group and the TTI length of the carrier is equal to the TTI length of the other of the two carriers.

30. The method according to any one of claims 16 to 29, characterized in that, the HARQ confirmation information fed back by the user equipment to the base station at the feedback time corresponding to the process group is: The process group includes: Joint encoding information of the HARQ acknowledgment information of each process.

31. A base station, characterized by: including:

The first process group determination module is used to determine the process group, and the process group includes at least two processes;

A data sending module, used to call a process to send downlink data to the user equipment;

A module for receiving confirmation information, configured to receive the HARQ confirmation information sent by the user equipment at the feedback time corresponding to the process group.

32. The base station according to claim 31, characterized in that the first process group determination module includes:

The process group determination unit is configured to determine the process group based on the time when the process is scheduled; or, to determine the process group based on the process number.

33. The base station according to claim 32, characterized in that the time when the process is scheduled includes: a frame number and a subframe number.

34. The base station according to claim 32, characterized in that the process group determination unit includes:

The first continuous subframe determination unit is used to determine n consecutive subframes that satisfy [(frame number + 5*subframe number) modulo n=0] subframes and subframes that satisfy [(frame number+5*subframe number) modulo n=l], until [(frame number+5*subframe number:) is an integer greater than or equal to 2.

35. The base station according to any one of claims 31 to 34, further comprising: a joint feedback indication sending module, configured to send a joint feedback indication message to the user equipment, the joint feedback indication message being used to indicate the The user equipment performs joint HARQ feedback on the process group, and the process group includes at least two processes.

36. The base station according to any one of claims 31 to 35, further comprising: an activation or deactivation indication sending module, configured to send an activation indication for the joint feedback indication message to the user equipment; or Deactivation instruction, the activation instruction is used to instruct the user equipment to perform joint HARQ feedback on the process group, or the deactivation instruction is used to instruct the user not to perform joint HARQ feedback on the process group.

37. The base station according to any one of claims 31 to 36, characterized in that the calling order within the joint response.

38. The base station according to any one of claims 31 to 37, further comprising: a first process feedback time determination module, configured to determine the number of processes called to send downlink data based on the number of processes included in the process group. The transmission time interval TTI of the process and the calling order of the process called to send downlink data within the process group determine the feedback time corresponding to the process group; or, the first subframe feedback time determination module is used to determine the feedback time according to the called The scheduling time corresponding to the process that sends downlink data determines the feedback time corresponding to the process group.

39. The base station according to claim 38, characterized in that the scheduling time corresponding to the process called to send downlink data includes: the frame number and subframe number corresponding to the process called to send downlink data.

40. The base station according to claim 38, characterized in that the first process feedback time determination module includes:

A first offset TTI determination unit, configured to determine the offset TTI of each process according to the number of processes included in the process group and the calling order of each process in the process group;

The first feedback refers to the TTI determination unit, which is used to send the next step according to any one called in the process group. The TTI of the process of row data and its corresponding offset TTI determine the feedback reference TTI of the process group; the first process feedback time determination unit is used to determine the feedback time associated with the feedback reference TTI of the process group as the The feedback time corresponding to the process group.

41. The base station according to claim 34 or 39, characterized in that the first subframe feedback time determination module includes:

The first subframe feedback time determination unit is used to determine the feedback time associated with the subframe that satisfies the [(frame number + 5*subframe number) modulo n=n-l] relationship as the feedback time corresponding to the process group.

42. The base station according to any one of claims 31 to 41, further comprising: a first carrier process group determination module, configured to determine processes called on at least two carriers as included in the process group. process.

43. The base station according to claim 42, wherein the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to the process with a shorter TTI.

44. The base station according to claim 43, characterized in that, if the process called on two carriers is determined to be a process included in the process group, then the process included in one of the two carriers The product of the number of processes in the process group and the ΤΉ length of the carrier is equal to the ΤΉ length of the other of the two carriers.

45. The base station according to any one of claims 31 to 44, characterized in that, the HARQ confirmation information received at the feedback time corresponding to the process group is: HARQ confirmation of each process included in the process group. Joint encoding of information.

46. A user equipment, characterized by: including:

The second process group determination module is used to determine the process group, and the process group includes at least two processes;

The data receiving module is used to receive downlink data sent by the process called by the base station; the confirmation information sending module is used to feed back HARQ confirmation information to the base station at the feedback time corresponding to the process group.

47. The user equipment according to claim 46, characterized in that the process group determination module includes:

48. The user equipment according to claim 47, characterized in that, the process is scheduled The time includes: frame number and subframe number.

49. The user equipment according to claim 47, characterized in that the process group determination unit includes:

The second continuous subframe determination unit is used to combine consecutive n subframes satisfying [(frame number+5*subframe number) modulo n=0] and satisfying [(frame number+5*subframe number) modulo n=l ] subframe until [ (frame number + 5 * subframe number:) is an integer greater than or equal to 2. ' '

50. The user equipment according to any one of claims 46 to 49, further comprising: a joint feedback indication receiving module, configured to receive a joint feedback indication message sent by the base station, the joint feedback indication message being used to indicate The user equipment performs joint HARQ feedback on the process group, and the process group includes at least two processes.

51. The user equipment according to any one of claims 46 to 50, further comprising: an activation or deactivation indication receiving module, configured to receive an activation indication for the joint feedback indication message sent by the base station. Or a deactivation instruction, the activation instruction is used to instruct the user equipment to perform joint HARQ feedback on the process group, or the deactivation instruction is used to instruct the user not to perform joint HARQ feedback on the process group.

52. The user equipment according to any one of claims 46 to 51, characterized in that the calling sequence within the linkage group.

53. The user equipment according to any one of claims 46 to 52, further comprising: a second process feedback time determination module, configured to send downlink data according to the number of processes included in the process group. The transmission time gap TTI of the process and the calling order of the process called to send downlink data within the process group determine the feedback time corresponding to the process group; or, the second subframe feedback time determination module is used to determine the feedback time according to the process group. Determine the scheduling time corresponding to the process called to send downlink data, and determine the feedback time corresponding to the process group.

54. The user equipment according to claim 53, characterized in that the scheduling time corresponding to the process called to send downlink data includes: the frame number and subframe number corresponding to the process called to send downlink data.

55. The user equipment according to claim 53, characterized in that the second process feedback time determination module includes: A second offset TTI determination unit, configured to determine the offset of each process according to the number of processes included in the process group and the calling order of each process in the process group.

ΤΤΙ;

The second feedback reference TTI determination unit is used to determine the feedback reference TTI of the process group based on the TTI of any process called to send downlink data in the process group and its corresponding offset TTI; the second process feedback time determination A unit configured to determine the feedback time associated with the feedback reference TTI of the process group as the feedback time corresponding to the process group.

56. The user equipment according to claim 49 or 54, characterized in that the second subframe feedback time determination module includes:

The second subframe feedback time determination unit is used to determine the feedback time associated with the subframe that satisfies the relationship of [(frame number + 5*subframe number) modulo η=n-1] as the feedback time corresponding to the process group.

57. The user equipment according to any one of claims 46-56, further comprising: a second carrier process group determination module, configured to determine processes called on at least two carriers as those in the process group. Included processes.

58. The user equipment according to claim 57, wherein the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to the process with a shorter TTI.

59. The user equipment according to claim 58, wherein if a process called on two carriers is determined to be a process included in the process group, then all the processes included in one of the two carriers are The product of the number of processes in the process group and the TTI length of the carrier is equal to the TTI length of the other of the two carriers.

60. The user equipment according to any one of claims 46 to 59, characterized in that, the HARQ confirmation information fed back to the base station at the feedback time corresponding to the process group is: each process included in the process group Joint encoding information of the HARQ acknowledgment information.

61. A base station, characterized by: including:

A transmitter, used to call a process to send downlink data to the user equipment;

A receiver, configured to receive the HARQ confirmation information sent by the user equipment at the feedback time corresponding to the process group.

62. The base station according to claim 61, wherein the processor is further configured to determine the process group according to the time when the process is scheduled; or, to determine the process group according to the process number.

63. The base station according to claim 62, characterized in that the time when the process is scheduled includes: a frame number and a subframe number.

64. The base station according to claim 62, wherein the processor is further configured to combine n consecutive subframes satisfying [(frame number+5*subframe number) modulo n=0] and satisfying [( (frame number + 5 * subframe number) modulo n = l ] subframes, until the process scheduled on the subframe satisfying [ (frame number + 5 * subframe number) modulo n = n - l ] is determined to be the process Processes included in the group, where n is an integer greater than or equal to 2.

65. The base station according to claims 61-64, characterized in that the transmitter is further configured to send a joint feedback indication message to the user equipment, and the joint feedback indication message is used to instruct the user equipment to respond to the process. A group performs joint HARQ feedback, and the process group includes at least two processes.

66. The base station according to any one of claims 61 to 65, characterized in that: the transmitter is configured to send an activation instruction or deactivation instruction for the joint feedback instruction message to the user equipment, and the The activation indication is used to instruct the user equipment to perform joint HARQ feedback on the process group, or the deactivation instruction is used to instruct the user not to perform joint HARQ feedback on the process group.

67. The base station according to any one of claims 61 to 66, characterized in that the calling order within the joint response.

68. The base station according to any one of claims 61 to 67, wherein the processor is further configured to determine based on the number of processes included in the process group and the order of processes called to send downlink data. The feedback time corresponding to the process group; or,

Used to determine the feedback time corresponding to the process group according to the scheduling time corresponding to the process called to send downlink data.

69. The base station according to claim 68, characterized in that the scheduling time corresponding to the process called to send downlink data includes: the frame number and subframe number corresponding to the process called to send downlink data.

70. The base station according to claim 68, wherein the processor is further configured to: according to the number of processes included in the process group and the call of each process in the process group. In order, determine the offset TTI of each said process;

According to the TTI and its corresponding bias of any process in the process group that is called to send downlink data. The mobile TTI determines the feedback reference TTI of the process group;

The feedback time of the process group is determined with reference to the feedback time associated with TTI as the feedback time corresponding to the process group.

71. The base station according to claim 64 or 69, characterized in that the processor is further configured to associate subframes satisfying the relationship of [(frame number + 5*subframe number) modulo n=n-1]. The feedback time is determined as the feedback time corresponding to the process group.

72. The base station according to any one of claims 61-71, wherein the processor is further configured to: determine processes called on at least two carriers as processes included in the process group.

73. The base station according to claim 72, characterized in that the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to the process with a shorter TTI.

74. The base station according to claim 73, characterized in that, if the process called on two carriers is determined to be a process included in the process group, then the process included in one of the two carriers The product of the number of processes in the process group and the ΤΉ length of the carrier is equal to the ΤΉ length of the other of the two carriers.

75. The base station according to any one of claims 61 to 74, characterized in that, the HARQ confirmation information received at the feedback time corresponding to the process group is: HARQ confirmation of each process included in the process group. Joint encoding of information.

76. A user equipment, characterized by: including:

A receiver, configured to receive downlink data sent by the process called by the base station;

A transmitter, configured to feed back HARQ confirmation information to the base station at the feedback time corresponding to the process group.

77. The user equipment according to claim 76, wherein the processor is further configured to determine the process group according to the time when the process is scheduled; or, to determine the process group according to the process number.

78. The user equipment according to claim 77, characterized in that the time when the process is scheduled includes: a frame number and a subframe number.

79. The user equipment according to claim 77, wherein the processor is further configured to combine n consecutive subframes satisfying [(frame number + 5*subframe number) modulo n=0] and satisfying [ (Frame number + 5 * subframe number:) modulo n = l ] subframe, until the process scheduled on the subframe satisfying [ (frame number + 5 * subframe number) modulo n = n - l ] Determine it as a process included in the process group, where n is an integer greater than or equal to 2.

80. The user equipment according to any one of claims 76 to 79, characterized in that the receiver is further configured to receive a joint feedback indication message sent by the base station, and the joint feedback indication message is used to instruct the user equipment Joint HARQ feedback is performed on the process group, which includes at least two processes.

81. The user equipment according to any one of claims 76 to 80, wherein the receiver is configured to receive an activation indication or deactivation indication for the joint feedback indication message sent by the base station, The activation instruction is used to instruct the user equipment to perform joint HARQ feedback on the process group, or the deactivation instruction is used to instruct the user not to perform joint HARQ feedback on the process group.

82. The user equipment according to any one of claims 76 to 81, characterized in that the calling sequence within the linkage group.

83. The user equipment according to any one of claims 76 to 82, characterized in that the processor is further configured to determine the process sequence according to the number of processes included in the process group and the order of processes called to send downlink data. The feedback time corresponding to the process group; or,

84. The user equipment according to claim 83, characterized in that the scheduling time corresponding to the process called to send downlink data includes: the frame number and subframe number corresponding to the process called to send downlink data.

85. The user equipment according to claim 83, wherein the processor is configured to: according to the number of processes included in the process group and the calling order of each process in the process group. , determine the offset TTI of each said process;

Determine the feedback reference TTI of the process group based on the TTI of any process in the process group that is called to send downlink data and its corresponding offset TTI;

The feedback time of the process group is determined with reference to the feedback time associated with the TTI as the feedback time corresponding to the process group.

86. The user equipment according to claim 79 or 84, characterized in that, the processor It is used to determine the feedback time associated with the subframe that satisfies the relationship of [(frame number + 5*subframe number) modulo n=n-l] as the feedback time corresponding to the process group.

87. The user equipment according to any one of claims 76-86, wherein the processor is further configured to determine processes called on at least two carriers as processes included in the process group.

88. The user equipment according to claim 87, wherein the TTI lengths of the at least two carriers are different, and the process group feedback time is determined according to the process with a shorter TTI.

89. The user equipment according to claim 88, wherein if a process called on two carriers is determined to be a process included in the process group, then all the processes included in one of the two carriers are The product of the number of processes in the process group and the TTI length of the carrier is equal to the TTI length of the other of the two carriers.

90. The user equipment according to any one of claims 76 to 89, characterized in that, the HARQ confirmation information fed back to the base station at the feedback time corresponding to the process group is: each process included in the process group Joint encoding information of the HARQ acknowledgment information.