CN104468065A

CN104468065A - User equipment, node equipment and method for determining uplink timing relationship

Info

Publication number: CN104468065A
Application number: CN201310430732.XA
Authority: CN
Inventors: 杨维维; 戴博; 梁春丽; 夏树强; 方惠英
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-09-18
Filing date: 2013-09-18
Publication date: 2015-03-25
Also published as: WO2014169868A1

Abstract

The invention discloses user equipment, node equipment and a method for determining an uplink timing relationship, and relates to the wireless communication technology. The method disclosed in the invention comprises: when a Frequency Division Duplex (FDD) service cell and a Time Division Duplex (TDD) service cell aggregate and support cross-carrier scheduling, the equipment determines an uplink Hybrid Automatic Resending Request (HARQ) timing relationship of the scheduled service cell in accordance with a type of the scheduled service cell. The invention further discloses the user equipment and the node equipment. Through the method for determining uplink timing relationship provided in the technical solution of the invention, a problem of determining uplink timing relationship when the FDD service cell and the TDD service cell aggregate is solved.

Description

User equipment, node equipment and method for determining uplink timing relationship

Technical Field

The present invention relates to wireless communication technologies, and in particular, to a user equipment, a node device, and a method for determining an uplink timing relationship.

Background

The radio frame (radio frame) in the LTE (Long Term Evolution) system and the LTE-a (Long Term Evolution Advanced) system includes frame structures of an FDD (frequency Division Duplex) mode and a TDD (Time Division Duplex) mode. Fig. 1 is a schematic diagram of a frame structure in an existing LTE/LTE-a FDD system, where as shown in fig. 1, a 10 millisecond (ms) radio frame is composed of twenty slots (slots) with a length of 0.5ms and a number of 0-19, and a subframe (subframe) i with a length of 1ms is composed of slots 2i and 2i + 1. Fig. 2 is a schematic diagram of a frame structure in a conventional LTE/LTE-a TDD system, where a 10ms radio frame is composed of two half-frames (half frames) with a length of 5ms, one half-frame includes 5 subframes with a length of 1ms, and subframe i is defined as 2 slots 2i and 2i +1 with a length of 0.5 ms.

In both of the above frame structures, for a standard Cyclic Prefix (Normal Cyclic Prefix), a slot contains 7 symbols with a length of 66.7 microseconds (us), wherein the CP length of the first symbol is 5.21us, and the CP length of the remaining 6 symbols is 4.69 us; for an Extended Cyclic Prefix (Extended CP), one slot contains 6 symbols, and the CP length of all symbols is 16.67 us. The supported uplink and downlink configurations are shown in table 1:

table 1 is a configuration table for uplink and downlink

Uplink-downlink configuration

Downlink-uplink

Subframe number

Switching dot period

0

1

2

3

4

5

6

7

8

9

0

5ms

D

S

U

D

S

U

1

5ms

D

S

U

D

S

U

D

2

5ms

D

S

U

D

S

U

D

3

10ms

D

S

U

D

4

10ms

D

S

U

D

5

10ms

D

S

U

D

6

5ms

D

S

U

D

S

U

D

In each subframe in a radio frame, "D" denotes a subframe dedicated to Downlink transmission, "U" denotes a subframe dedicated to Uplink transmission, and "S" denotes a special subframe including three parts, which are DwPTS (Downlink Pilot Time Slot), GP (Guard Period), and UpPTS (Uplink Pilot Time Slot).

In the LTE system, the HARQ process refers to: when the sending end needs to transmit data, the receiving end distributes information needed by transmission, such as frequency domain resources, grouping information and the like, to the sending end through the downlink signaling. The sending end sends data according to the information, meanwhile, the data is stored in a buffer of the sending end so as to be retransmitted, the receiving end detects after receiving the data, if the data is correctly received, the sending end sends ACK (acknowledgement) to the sending end, and the sending end clears the buffer memory used by the transmission after receiving the ACK and finishes the transmission. If the data is not received correctly, sending NACK (not acknowledged) to the sending end, storing the packet which is not received correctly in a buffer memory of the receiving end, sending the data from the buffer memory of the sending end after receiving the NACK information, and retransmitting the data at the corresponding subframe and the corresponding frequency domain position by using a specific packet format. After receiving the retransmission packet, the receiving end combines the retransmission packet with the previously incorrectly received molecules, performs detection again, and repeats the above process until the data is correctly received or the transmission times exceed the maximum transmission time threshold.

In the LTE/LTE-a FDD system, the scheduling timing of the Uplink PUSCH (Physical Uplink Shared Channel) is defined as follows: for normal HARQ operation, UE detects PDCCH/EPDCCH (Downlink Control Channel/Enhanced Downlink Control Channel) or PHICH (Physical HARQ Indicator Channel) transmission carrying uplink DCI (Downlink Control information) information on a subframe n, and the UE adjusts PUSCH transmission on a subframe n +4 according to the PDCCH/EPDCCH and the PHICH information; for the subframe binding operation, the UE detects PDCCH/EPDCCH carrying uplink DCI information on a subframe n or PHICH on a subframe n-5, and the UE adjusts the first PUSCH transmission in the binding in a subframe n +4 according to the PDCCH/EPDCCH and PHICH information.

In the LTE/LTE-a TDD system, the uplink PUSCH scheduling timing is defined as follows: for the common HARQ operation with uplink and downlink configuration 1-6, the UE detects PDCCH/EPDCCH or PHICH transmission carrying uplink DCI information on a subframe n, and the UE adjusts PUSCH transmission on a subframe n + k according to the PDCCH/EPDCCH and PHICH information; for the uplink and downlink configuration 0 and the common HARQ operation, the UE detects PDCCH/EPDCCH or PHICH transmission carrying uplink DCI information on a subframe n, if the highest bit of a UL index domain in the PDCCH/EPDCCH is 1 or the PHICH is received by using a PHICH resource index 0 on a subframe n =0 or 5, the UE adjusts the PUSCH transmission on a subframe n + k according to the PDCCH/EPDCCH and PHICH information; for the uplink and downlink configuration 0 and the common HARQ operation, the lowest bit of a UL index domain in a PDCCH/EPDCCH on a subframe n is 1 or the PHICH is received on the subframe 0 or 5 by using a PHICH resource index 1 or the PHICH is received on the subframe 1 or 6, and the UE adjusts the transmission of the PUSCH on a subframe n +7 according to the PDCCH/EPDCCH and PHICH information; for uplink and downlink configuration 0, if the most significant bit and the least significant bit of the UL index in the PDCCH/EPDCCH in the subframe n are both set, the UE adjusts the transmission of the PUSCH on the subframes n + k and n +7 according to the PDCCH/EPDCCH and PHICH information, where the value of k is shown in table 2:

table 2 is a value table of k in different uplink and downlink configurations

In the LTE/LTE-a TDD system, the timing relationship of the PHICH for transmitting the HARQ-ACK response of the PUSCH in the uplink HARQ is defined as follows: for uplink and downlink configuration 1-6, a PHICH channel on a subframe i receives a HARQ-ACK response of a PUSCH on a subframe i-k; for uplink and downlink configuration 0, HARQ-ACK response of PUSCH on sub-frames i-k is received on PHICH resource index 0 on sub-frame i; for the uplink and downlink configuration 0, HARQ-ACK response of PUSCH on the subframe i-6 is received on PHICH resource index 1 on the subframe i; wherein the k values are shown in Table 3:

table 3 is a value table of k in different uplink and downlink configurations

The most significant feature of the LTE-a system compared to the LTE system is that the LTE-a system introduces a carrier aggregation technology, that is, the bandwidth of the LTE system is aggregated to obtain a larger bandwidth. In a system that introduces Carrier aggregation, a Carrier that performs aggregation is referred to as a Component Carrier (CC) and also referred to as a Serving Cell (Serving Cell). Meanwhile, concepts of Primary Component Carrier/Cell (PCC/PCell) and Secondary Component Carrier/Cell (SCC/SCell) are also proposed. In a system with carrier aggregation, at least one primary serving cell and a secondary serving cell are included, wherein the primary serving cell is always in an activated state, and PUCCH is only required to be transmitted on Pcell.

Cross-carrier scheduling is introduced in an LTE-a system, that is, a PDCCH on a certain serving cell can schedule PDSCH/PUSCH of multiple serving cells, wherein the serving cell in which the PDCCH is located is called a scheduling cell, and the serving cell in which the PDSCH/PUSCH is located is called a scheduled serving cell.

The existing carrier aggregation technology is only applied to an FDD serving cell or a TDD serving cell, and in subsequent releases, the FDD serving cell and the TDD serving cell are considered, and when the FDD serving cell and the TDD serving cell are aggregated and support cross-carrier scheduling, how to determine an uplink timing relationship is one of the problems to be solved urgently, otherwise, the aggregation of the FDD serving cell and the TDD serving cell cannot be realized.

Disclosure of Invention

The invention provides user equipment, node equipment and a method for determining an uplink timing relationship, and aims to solve the technical problem that the uplink timing relationship cannot be determined when an FDD (frequency division duplexing) serving cell and a TDD (time division duplexing) serving cell are aggregated and cross-carrier scheduling is supported.

In order to solve the above problem, the present invention discloses a method for determining an uplink timing relationship, including:

when a Frequency Division Duplex (FDD) serving cell and a Time Division Duplex (TDD) serving cell are aggregated and cross-carrier scheduling is supported, the equipment determines an uplink hybrid automatic repeat request (HARQ) timing relation of the scheduled serving cell according to the type of the scheduled serving cell.

Optionally, in the foregoing method, when the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the uplink HARQ timing relationship of the TDD serving cell is determined according to the following manner:

timing between a Physical Downlink Control Channel (PDCCH)/an Enhanced Physical Downlink Control Channel (EPDCCH) and a Physical Uplink Shared Channel (PUSCH) on a TDD serving cell, or timing between the Physical Uplink Shared Channel (PUSCH) and a physical hybrid retransmission indicator channel (PHICH) adopts an uplink HARQ timing relationship corresponding to FDD, and timing between the PUSCH and a retransmission PUSCH adopts an uplink HARQ timing relationship corresponding to a polymerized TDD serving cell; or

The timing between PDCCH/EPDCCH and PUSCH or PUSCH and PHICH of the TDD serving cell adopts the uplink HARQ timing relation corresponding to FDD, and the timing between PUSCH and retransmission PUSCH adopts the newly configured uplink HARQ timing.

Optionally, in the foregoing method, the timing between the PUSCH and the retransmission PUSCH adopts a newly configured uplink HARQ timing relationship finger: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

Optionally, in the foregoing method, when the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the UE determines the uplink HARQ timing relationship of the FDD serving cell according to the following manner:

meanwhile, the uplink HARQ timing relationship on the uplink subframe of the FDD service cell and the uplink subframe of the TDD service cell adopts the uplink HARQ timing of TDD, and the uplink HARQ timing relationship on other subframes adopts newly configured uplink HARQ timing; or,

dividing an uplink subframe of an FDD service cell into T subframe sets, wherein different subframe sets correspond to uplink HARQ timing relations configured by different TDD, and T is a positive integer greater than or equal to 1; or,

and determining the uplink HARQ timing relation of the FDD serving cell according to the predefined uplink HARQ timing relation configured by the TDD.

Optionally, in the method, the uplink HARQ timing relationship on other subframes adopts the newly configured uplink HARQ timing finger:

for the uplink and downlink configuration with the downlink-uplink switching point period of 5ms, the newly configured uplink HARQ timing is the uplink HARQ timing which meets the requirement that the timing between the PUSCH and the retransmission PUSCH is 10 ms; for the uplink and downlink configuration with 10ms around the downlink-uplink switching point, the newly configured uplink HARQ timing is the uplink HARQ timing which satisfies the timing between the PUSCH and the retransmission PUSCH of 20 ms.

Optionally, in the above method, the uplink HARQ timing with timing between PUSCH and retransmission PUSCH being 10ms refers to:

and detecting PDCCH/EPDCCH or PHICH corresponding to the PUSCH on a subframe n, transmitting the PUSCH on a subframe n + p, and detecting the PDCCH/EPDCCH or PHICH corresponding to the PUSCH on a subframe n +10, wherein the value of p is {4,5,6 }.

Optionally, in the above method, the uplink HARQ timing with a timing between the PUSCH and the retransmission PUSCH of 20ms refers to:

and detecting PDCCH/EPDCCH or PHICH corresponding to the PUSCH on a subframe n, transmitting the PUSCH on a subframe n + q, and detecting the PDCCH/EPDCCH or PHICH corresponding to the PUSCH on a subframe n +20, wherein the value of q is {9,10,11 }.

Optionally, in the above method, when T is 2, the subframes {2, 3, 4, 7, 8, 9} form a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts an uplink HARQ timing relationship corresponding to TDD configuration 0; the sub-frames 0,1, 5,6 constitute another sub-frame set, and the uplink HARQ timing relationship of all sub-frames in the sub-frame set adopts the newly configured uplink HARQ timing, or,

when the T is 2, the subframes which are the same as the scheduled TDD form a subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the uplink HARQ timing relation corresponding to the scheduled TDD configuration; and other subframes form another subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts the newly configured uplink HARQ timing, or,

when the T is 3, the subframes which are the same as the scheduled TDD form a first subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the uplink HARQ timing relation corresponding to the scheduled TDD configuration; the rest subframes except the uplink subframes corresponding to the TDD ratio in the subframes {2, 3, 4, 7, 8 and 9} form a second subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the uplink HARQ timing relation corresponding to the TDD configuration 0; and the subframes {0, 1, 5 and 6} form a third subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the newly configured uplink HARQ timing.

Optionally, in the method, in the determining the uplink HARQ timing relationship of the FDD serving cell according to the predefined uplink HARQ timing relationship configured by the TDD, the predefined TDD configuration includes at least one of:

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

Optionally, in the foregoing method, the uplink HARQ timing includes one or more of the following:

timing between PDCCH/EPDCCH and PUSCH, timing between PUSCH and PHICH, timing between PHICH and retransmitted PUSCH, timing between PUSCH and retransmitted PUSCH.

Optionally, in the above method, the device is a user equipment or a node device.

The invention also discloses a user equipment, comprising:

a first unit, configured to determine an uplink hybrid automatic repeat request (HARQ) timing relationship of a scheduled serving cell according to a type of the scheduled serving cell when a Frequency Division Duplex (FDD) serving cell and a Time Division Duplex (TDD) serving cell are aggregated and support cross-carrier scheduling;

and a second unit, configured to send uplink data according to the determined uplink HARQ timing relationship of the scheduled serving cell.

Optionally, in the user equipment, when the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the TDD serving cell according to the following manner:

Optionally, in the user equipment, the timing between the PUSCH and the retransmission PUSCH is configured with newly configured uplink HARQ timing relationship fingers: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

Optionally, in the user equipment, when the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the FDD serving cell according to the following manner:

Optionally, in the user equipment, the uplink HARQ timing relationship on other subframes adopts a newly configured uplink HARQ timing finger:

Optionally, in the user equipment, the uplink HARQ timing with a timing between the PUSCH and the retransmission PUSCH of 10ms refers to:

Optionally, in the user equipment, the uplink HARQ timing with a timing between the PUSCH and the retransmission PUSCH of 20ms refers to:

Optionally, in the user equipment, when T is 2, the subframes {2, 3, 4, 7, 8, 9} form a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts an uplink HARQ timing relationship corresponding to TDD configuration 0; the sub-frames 0,1, 5,6 constitute another sub-frame set, and the uplink HARQ timing relationship of all sub-frames in the sub-frame set adopts the newly configured uplink HARQ timing, or,

Optionally, in the user equipment, in the determining the uplink HARQ timing relationship of the FDD serving cell according to the uplink HARQ timing relationship configured by the predefined TDD, the predefined TDD configuration includes at least one of:

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

Optionally, in the user equipment, the uplink HARQ timing includes one or more of the following:

PDCCH/EPDCCH and PUSCH timing, PUSCH and PHICH timing, PHICH and retransmission PUSCH timing, PUSCH and retransmission PUSCH timing.

The invention also discloses a node device, comprising:

a first unit, when a Frequency Division Duplex (FDD) serving cell and a Time Division Duplex (TDD) serving cell are aggregated and cross-carrier scheduling is supported, a system determines an uplink hybrid automatic repeat request (HARQ) timing relationship of a scheduled serving cell according to a type of the scheduled serving cell;

and a second unit, configured to receive uplink data according to the determined uplink HARQ timing relationship of the scheduled serving cell.

Optionally, in the node device, when the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the TDD serving cell according to the following manner:

Optionally, in the node device, the timing between the PUSCH and the retransmission PUSCH is configured with newly configured uplink HARQ timing relationship fingers: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

Optionally, in the node device, when the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the FDD serving cell according to the following manner:

Optionally, in the node device, the uplink HARQ timing relationship on other subframes adopts the newly configured uplink HARQ timing finger:

Optionally, in the node device, the uplink HARQ timing with timing between PUSCH and retransmission PUSCH being 10ms refers to:

Optionally, in the node device, the uplink HARQ timing with a timing between the PUSCH and the retransmission PUSCH of 20ms refers to:

Optionally, in the node device, when T is 2, the subframes {2, 3, 4, 7, 8, 9} form a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts an uplink HARQ timing relationship corresponding to TDD configuration 0; the sub-frames 0,1, 5,6 constitute another sub-frame set, and the uplink HARQ timing relationship of all sub-frames in the sub-frame set adopts the newly configured uplink HARQ timing, or,

Optionally, in the node device, in the determining the uplink HARQ timing relationship of the FDD serving cell according to the uplink HARQ timing relationship configured by the predefined TDD, the predefined TDD configuration includes at least one of:

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

Optionally, in the node device, the uplink HARQ timing includes one or more of the following:

By the scheme for determining the uplink timing relationship, the problem of determining the uplink timing relationship when an FDD serving cell and a TDD serving cell are aggregated can be solved.

Drawings

Fig. 1 is a diagram illustrating a frame structure in a FDD system in the prior art;

FIG. 2 is a diagram illustrating a frame structure in a prior art TDD system;

fig. 3(a) is a timing relationship diagram of an uplink HARQ corresponding to configuration #0 configured for uplink and downlink of a TDD serving cell in this embodiment;

fig. 3(b) is a schematic diagram of the timing between PDCCH/EPDCCH and PUSCH, the timing between PUSCH and PHICH, and the timing relationship between PUSCH and retransmitted PUSCH on a TDD serving cell in this embodiment when the TDD serving cell is a scheduled cell;

fig. 3(c) is a schematic diagram of timing between PDCCH/EPDCCH and PUSCH on a TDD serving cell, timing between PUSCH and PHICH, and timing relationship between PUSCH and retransmission PUSCH when timing between PUSCH and retransmission PUSCH is newly defined to be 10ms in this embodiment;

fig. 3(d) is a serving cell aggregation in which an FDD serving cell and a TDD uplink and downlink are configured to configure #0 in this embodiment, where the FDD serving cell is a scheduled cell, an uplink HARQ timing relationship on an uplink subframe of the FDD serving cell and an uplink subframe of the TDD serving cell adopts uplink HARQ timing of TDD, and uplink HARQ timing relationships on other subframes adopt newly configured uplink HARQ timing relationship;

fig. 3(e) is a schematic diagram of a timing relationship between an FDD serving cell and an uplink and downlink TDD serving cell configured with configuration #0 in this embodiment, where the FDD serving cell is a scheduled cell and an uplink HARQ is performed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

Example 1

The embodiment provides a method for determining an uplink timing relationship, which includes the following operations:

when an FDD serving cell and a TDD serving cell are aggregated and cross-carrier scheduling is supported, the equipment determines the uplink HARQ timing relation of a scheduled serving cell according to the type of the scheduled serving cell;

specifically, when determining the uplink HARQ timing relationship of the scheduled serving cell according to the type of the scheduled serving cell: if the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the UE may determine the uplink HARQ timing relationship of the TDD serving cell according to at least one of the following manners:

mode 1: timing between PDCCH/EPDCCH and PUSCH on a TDD serving cell, or timing between PUSCH and PHICH adopts an uplink HARQ timing relationship corresponding to FDD, and timing between PUSCH and retransmission PUSCH adopts an uplink HARQ timing relationship corresponding to a polymerized TDD serving cell;

mode 2: the timing between PDCCH/EPDCCH or PHICH and PUSCH of the TDD serving cell adopts an uplink HARQ timing relation corresponding to FDD, and the timing between PUSCH and retransmission PUSCH adopts newly configured uplink HARQ timing;

wherein, the new configuration of the uplink HARQ timing is adopted for the timing between the PUSCH and the retransmission PUSCH, and the method comprises the following steps: the timing between the PUSCH and the retransmission PUSCH is the uplink HARQ timing of 10 ms;

when the device determines the uplink HARQ timing relationship of the scheduled serving cell according to the type of the scheduled serving cell: if the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the uplink HARQ timing relationship of the FDD serving cell may be determined according to at least one of the following manners:

the first method is as follows: meanwhile, the uplink HARQ timing relation on the uplink subframe of the FDD service cell and the uplink subframe of the TDD service cell adopts the uplink HARQ timing of TDD, and the uplink HARQ timing relation on other subframes adopts the newly defined uplink HARQ timing;

wherein, the uplink HARQ timing adopting the new configuration means: for the uplink and downlink configuration with the downlink-uplink switching point period of 5ms, the newly configured uplink HARQ timing refers to the uplink HARQ timing which satisfies the timing between the PUSCH and the retransmission PUSCH of 10ms, or for the uplink and downlink configuration with the uplink-uplink switching point period of 10ms, the newly configured uplink HARQ timing refers to the uplink HARQ timing which satisfies the timing between the PUSCH and the retransmission PUSCH of 20 ms.

Wherein, the uplink HARQ timing with timing between PUSCH and retransmission PUSCH of 10ms means: detecting a PDCCH/EPDCCH or a PHICH corresponding to a PUSCH on a subframe n, transmitting the PUSCH on a subframe n + p, and detecting the PDCCH/EPDCCH or the PHICH corresponding to the PUSCH on a subframe n + 10; wherein p has a value of {4,5,6}

The uplink HARQ timing with a timing between PUSCH and retransmission PUSCH of 20ms refers to: detecting a PDCCH/EPDCCH or a PHICH corresponding to a PUSCH on a subframe n, transmitting the PUSCH on a subframe n + q, and detecting the PDCCH/EPDCCH or the PHICH corresponding to the PUSCH on a subframe n + 20; wherein q takes on the value of 9,10, 11.

The second method comprises the following steps: dividing an uplink subframe of an FDD service cell into T subframe sets, wherein different subframe sets correspond to uplink HARQ timing relations configured by different TDD, and T is a positive integer greater than or equal to 1;

for example, when T is 2, the subframes {2, 3, 4, 7, 8, 9} form a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts the uplink HARQ timing relationship corresponding to TDD configuration 0; the sub-frames {0, 1, 5,6} form another sub-frame set, and the uplink HARQ timing relation of all sub-frames in the sub-frame set adopts newly configured uplink HARQ timing;

similarly, when T is 2, the subframe that is the same as the scheduled TDD may also be divided into a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts the uplink HARQ timing relationship corresponding to the scheduled TDD configuration; dividing other subframes into another subframe set, wherein the uplink HARQ timing relationship of all the subframes in the subframe set adopts newly configured uplink HARQ timing;

when T is 3, the subframe that is the same as the scheduled TDD may be divided into a first subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts the uplink HARQ timing relationship corresponding to the scheduled TDD configuration; dividing the rest subframes except the uplink subframes corresponding to the TDD ratio in the subframes {2, 3, 4, 7, 8 and 9} into a second subframe set, wherein the uplink HARQ timing relation of all the subframes in the subframe set adopts the uplink HARQ timing relation corresponding to the TDD configuration 0; and dividing the subframes {0, 1, 5 and 6} into a third subframe set, wherein the uplink HARQ timing relationship of all subframes in the subframe set adopts the newly configured uplink HARQ timing.

The third method comprises the following steps: and determining the uplink HARQ timing relation of the FDD serving cell according to the predefined uplink HARQ timing relation configured by the TDD.

Specifically, the uplink HARQ timing relationship of the FDD serving cell is determined according to a predefined uplink HARQ timing relationship of the TDD configuration, where the predefined TDD configuration includes at least one of:

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

It should be noted that the uplink HARQ timing includes: one or more of timing between PDCCH/EPDCCH or PHICH and PUSCH, timing between PHICH and retransmission PUSCH, and timing between PUSCH and retransmission PUSCH.

It is further noted that the timing between the PDCCH/EPDCCH and the PUSCH referred to in the present application refers to a relationship between a downlink subframe where the PDCCH/EPDCCH of the PUSCH is scheduled and an uplink subframe of the PUSCH;

the timing between the PUSCH and the PHICH refers to the relation between an uplink subframe for sending the PUSCH and a downlink subframe in which the PHICH for bearing ACK/NACK corresponding to the PUSCH is positioned;

the timing between the PHICH and the retransmission PUSCH refers to the relationship between a downlink subframe of the PHICH for bearing the NACK corresponding to the PUSCH and an uplink subframe of the PUSCH for corresponding retransmission of the PUSCH;

the timing between the PUSCH and the retransmission PUSCH refers to the relation between an uplink subframe for sending the PUSCH and an uplink subframe where the PUSCH corresponding to the retransmission PUSCH is located.

The implementation process of the above method is described below with reference to various application scenarios.

If the uplink and downlink of the TDD serving cell is configured to be configuration #0, the uplink HARQ timing corresponding to configuration #0 is as shown in fig. 3(a), where the subframe with the rhombus-shaped hatching represents the subframe where PDCCH/EPCCH or PHICH in process N is located, and the subframe with the rectangular hatching represents the subframe where PUSCH in process N is located.

Assuming that an FDD serving cell and a TDD serving cell are aggregated, the FDD serving cell is a scheduling cell, and the TDD serving cell is a scheduled cell, timing between a PDCCH/EPDCCH and a PUSCH on the TDD serving cell and timing between a PUSCH and a PHICH adopt an uplink HARQ timing relationship corresponding to FDD, and timing between a PUSCH and a retransmission PUSCH adopt an uplink HARQ timing relationship corresponding to the aggregated TDD serving cell, as shown in fig. 3(b), wherein a subframe with a rhombus grid shading represents a subframe where a PDCCH/EPCCH or PHICH corresponding to a process N in the FDD uplink HARQ timing relationship is located, and a subframe with a rectangular grid shading represents a subframe where a PUSCH and a retransmission PUSCH corresponding to the process N in the TDD uplink HARQ timing relationship are located;

for the process #1, assuming that the uplink subframe where the PUSCH is located is the radio frame # n subframe #2, the retransmission PUSCH is transmitted in the radio frame # n +1 subframe #3 according to the uplink HARQ timing relationship of the TDD configuration #0, and the PDCCH/EPDCCH or PHICH corresponding to the retransmission PUSCH is transmitted in the radio frame # n subframe #6 according to the uplink HARQ timing relationship of FDD.

Assuming that an FDD serving cell and a TDD serving cell are aggregated, the FDD serving cell is a scheduling cell, the TDD serving cell is a scheduled cell, the timing between a PDCCH and a PUSCH on the TDD serving cell and the timing between a PUSCH and a PHICH adopt an uplink HARQ timing relationship corresponding to FDD, and the timing between a PUSCH and a retransmission PUSCH adopts a new timing relationship, wherein the new timing relationship refers to: the timing between PUSCH and retransmitted PUSCH is 10ms, as shown in fig. 3(c), the subframe with the rhombus grid-shading represents the subframe where PDCCH/EPCCH or PHICH corresponding to process N in the FDD uplink HARQ timing relationship is located, and the subframe with the rectangular grid-shading represents the subframe where PUSCH and retransmitted PUSCH corresponding to process N in the new timing FDD uplink HARQ timing relationship are located.

Assuming that the FDD serving cell and the TDD uplink and downlink are configured to configure the aggregation of the serving cell of #0, the TDD serving cell is a scheduling cell, the FDD serving cell is a scheduled cell, and meanwhile, the uplink HARQ timing relationship on the uplink subframe of the FDD serving cell and the uplink subframe of the TDD serving cell adopts the uplink HARQ timing of TDD, and the uplink HARQ timing relationship on other subframes adopts the newly configured uplink HARQ timing; because the downlink-uplink switching period configured with 0 is 5ms, the uplink HARQ timing with RTT of 10ms is adopted as the defined uplink HARQ timing, and the uplink HARQ timing with RTT of 10ms is realized in the following manner; detecting a PDCCH/EPDCCH or a PHICH corresponding to the PUSCHc on a subframe n, transmitting a PUSCH on a subframe n +5, and detecting the PDCCH/EPDCCH or the PHICH corresponding to the PUSCH on a subframe n + 10; as shown in fig. 3(d), the subframe with diamond-shaped hatching represents the subframe where PDCCH/EPDCCH or PHICH corresponding to process N in the original TDD uplink HARQ timing relationship is located, the subframe with vertical hatching represents the subframe where PDCCH/EPCCH or PHICH corresponding to process N in the FDD uplink HARQ timing relationship is located, the subframe with rectangular hatching represents the subframe where PUSCH corresponding to process N in the FDD uplink HARQ timing relationship is located, the subframe with horizontal hatching represents the subframe where PDCCH/EPCCH or PHICH corresponding to process N in the newly defined uplink HARQ timing relationship is located, and the subframe with dot hatching represents the subframe where PUSCH corresponding to process N in the newly defined uplink HARQ timing relationship is located.

Assuming that the FDD serving cell and the TDD uplink and downlink are configured to configure the aggregation of the serving cell of #0, and the TDD serving cell is a scheduling cell, the FDD serving cell is a scheduled cell, and the uplink HARQ timing relationship with the subframe index of {2, 3, 4, 7, 8, 9} adopts the uplink HARQ timing relationship corresponding to TDD configuration 0; the uplink HARQ timing relation with the subframe index of {0, 1, 5,6} adopts newly defined uplink HARQ timing; because the downlink-uplink switching period configured with 0 is 5ms, the uplink HARQ timing with RTT of 10ms is adopted as the defined uplink HARQ timing, and the uplink HARQ timing with RTT of 10ms is realized in the following manner; detecting a PDCCH/EPDCCH or a PHICH corresponding to a PUSCH on a subframe n, sending the PUSCH on a subframe n +5, and detecting the PDCCH/EPDCCH or the PHICH corresponding to the PUSCH on a subframe n + 10; as shown in fig. 3 (d).

Assuming that an FDD service cell and a TDD uplink and downlink configuration are aggregated to a service cell configured with #3, wherein the TDD service cell is a scheduling cell, the FDD service cell is a scheduled cell, an uplink HARQ timing relationship on an uplink subframe of the FDD service cell and an uplink subframe of the TDD service cell adopts uplink HARQ timing configured with #3, and uplink HARQ timing relationships on other subframes adopt newly configured uplink HARQ timing; because the downlink-uplink switching period of configuration 3 is 10ms, the uplink HARQ timing with RTT of 20ms is adopted for the defined uplink HARQ timing, and the uplink HARQ timing with RTT of 20ms is realized in the following manner; detecting a PDCCH/EPDCCH or a PHICH corresponding to a PUSCH on a subframe n, sending the PUSCH on a subframe n +10, and detecting the PDCCH/EPDCCH or the PHICH corresponding to the PUSCH on a subframe n + 20; as shown in fig. 3(e), the subframe with the rhombus grid-like shading represents the subframe where PDCCH/EPCCH or PHICH corresponding to process N in the TDD uplink HARQ timing relationship is located, the subframe with the rectangular grid-like shading represents the subframe where PUSCH corresponding to process N in the TDD uplink HARQ timing relationship is located, the subframe with the vertical stripe-like shading represents the subframe where PDCCH/EPCCH or PHICH corresponding to process N in the newly defined uplink HARQ timing relationship is located, and the subframe with the horizontal stripe-like shading represents the subframe where PUSCH corresponding to process N in the newly defined uplink HARQ timing relationship is located.

Example 2

This embodiment provides a UE, which can implement all the implementation methods in embodiment 1 above, where the UE includes:

a first unit, when an FDD serving cell and a TDD serving cell are aggregated and support cross-carrier scheduling, the UE determines the uplink HARQ timing relationship of a scheduled serving cell according to the type of the scheduled serving cell;

When the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the TDD serving cell according to the following two ways:

firstly, timing between PDCCH/EPDCCH and PUSCH on a TDD serving cell, or timing between PUSCH and PHICH adopts an uplink HARQ timing relationship corresponding to FDD, and timing between PUSCH and retransmission PUSCH adopts an uplink HARQ timing relationship corresponding to a converged TDD serving cell;

and secondly, the timing between the PDCCH/EPDCCH or the PHICH and the PUSCH of the TDD serving cell adopts an uplink HARQ timing relation corresponding to FDD, and the timing between the PUSCH and the retransmission PUSCH adopts newly configured uplink HARQ timing.

The timing between the PUSCH and the retransmission PUSCH related in the above manner adopts the newly configured uplink HARQ timing relationship: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

When the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the FDD serving cell according to the following three ways:

firstly, the uplink HARQ timing relation on the subframe which simultaneously has the uplink subframe of an FDD service cell and the uplink subframe of a TDD service cell adopts the uplink HARQ timing of TDD, and the uplink HARQ timing relation on other subframes adopts newly configured uplink HARQ timing;

wherein, the uplink HARQ timing relationship on other subframes adopts the newly configured uplink HARQ timing finger:

Uplink HARQ timing between PUSCH and retransmission PUSCH is 10 ms:

Uplink HARQ timing between PUSCH and retransmission PUSCH is 20 ms:

Dividing an uplink subframe of an FDD service cell into T subframe sets, wherein different subframe sets correspond to uplink HARQ timing relations configured by different TDD, and T is a positive integer greater than or equal to 1;

in this embodiment, when T is 2, the subframes {2, 3, 4, 7, 8, 9} form a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts an uplink HARQ timing relationship corresponding to TDD configuration 0; the sub-frames 0,1, 5,6 constitute another sub-frame set, and the uplink HARQ timing relationship of all sub-frames in the sub-frame set adopts the newly configured uplink HARQ timing, or,

when T is 2, the subframes which are the same as the scheduled TDD form a subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the uplink HARQ timing relation corresponding to the scheduled TDD configuration; and other subframes form another subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts the newly configured uplink HARQ timing, or,

when T is 3, the subframes which are the same as the scheduled TDD form a first subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the uplink HARQ timing relation corresponding to the scheduled TDD configuration; the rest subframes except the uplink subframes corresponding to the TDD ratio in the subframes {2, 3, 4, 7, 8 and 9} form a second subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the uplink HARQ timing relation corresponding to the TDD configuration 0; and the subframes {0, 1, 5 and 6} form a third subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the newly configured uplink HARQ timing.

And thirdly, determining the uplink HARQ timing relation of the FDD serving cell according to the predefined uplink HARQ timing relation configured by the TDD.

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

It should be noted that the uplink HARQ timing includes one or more of the following:

timing between PDCCH/EPDCCH or PHICH and PUSCH, timing between PHICH and retransmitted PUSCH, timing between PUSCH and retransmitted PUSCH.

Example 3

The present embodiment provides a node device, which may be a base station, and includes at least two units.

in the first mode, the timing between PDCCH/EPDCCH and PUSCH on a TDD serving cell, or the timing between PUSCH and PHICH adopts an uplink HARQ timing relationship corresponding to FDD, and the timing between PUSCH and retransmission PUSCH adopts an uplink HARQ timing relationship corresponding to an aggregated TDD serving cell.

And in the second mode, the timing between the PDCCH/EPDCCH or the PHICH and the PUSCH of the TDD serving cell adopts an uplink HARQ timing relation corresponding to FDD, and the timing between the PUSCH and the retransmission PUSCH adopts newly configured uplink HARQ timing.

Wherein, the timing between the PUSCH and the retransmission PUSCH adopts a newly configured uplink HARQ timing relation as follows: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

in the first mode, the uplink HARQ timing relationship on the subframe of the uplink subframe of the FDD service cell and the uplink subframe of the TDD service cell adopts the uplink HARQ timing of TDD, and the uplink HARQ timing relationship on other subframes adopts newly configured uplink HARQ timing;

Uplink HARQ timing between PUSCH and retransmission PUSCH is 10 ms:

Uplink HARQ timing between PUSCH and retransmission PUSCH is 20 ms:

In the second mode, an uplink subframe of an FDD serving cell is divided into T subframe sets, wherein different subframe sets correspond to uplink HARQ timing relations configured by different TDD, and T is a positive integer greater than or equal to 1;

in this embodiment, assuming that T is 2, the subframes {2, 3, 4, 7, 8, 9} form a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts an uplink HARQ timing relationship corresponding to TDD configuration 0; and forming the sub-frames 0,1, 5 and 6 into another sub-frame set, wherein the uplink HARQ timing relationship of all sub-frames in the sub-frame set adopts the newly configured uplink HARQ timing, or,

when T is 2, the subframes identical to the scheduled TDD may also form a subframe set, and the uplink HARQ timing relationship of all subframes in the subframe set adopts the uplink HARQ timing relationship corresponding to the scheduled TDD configuration; and forming other subframes into another subframe set, wherein the uplink HARQ timing relationship of all subframes in the subframe set adopts the newly configured uplink HARQ timing, or,

when T is 3, forming a first subframe set by subframes which are the same as the scheduled TDD, wherein the uplink HARQ timing relationship of all the subframes in the subframe set adopts the uplink HARQ timing relationship corresponding to the scheduled TDD configuration; forming a second subframe set by the remaining subframes except the uplink subframes corresponding to the TDD ratio in the subframes {2, 3, 4, 7, 8 and 9}, wherein the uplink HARQ timing relationship of all the subframes in the subframe set adopts the uplink HARQ timing relationship corresponding to the TDD configuration 0; and the subframes {0, 1, 5 and 6} form a third subframe set, and the uplink HARQ timing relation of all the subframes in the subframe set adopts the newly configured uplink HARQ timing.

And in a third mode, determining the uplink HARQ timing relation of the FDD serving cell according to the predefined uplink HARQ timing relation configured by TDD.

In this embodiment, in determining the uplink HARQ timing relationship of the FDD serving cell according to the predefined uplink HARQ timing relationship configured by the TDD, the predefined TDD configuration includes at least one of the following:

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

It should be further noted that the uplink HARQ timing includes one or more of the following:

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present application is not limited to any specific form of hardware or software combination.

The above description is only a preferred example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining an uplink timing relationship, comprising:

2. The method of claim 1, wherein when the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the uplink HARQ timing relationship of the TDD serving cell is determined as follows:

3. The method of claim 2, wherein timing between the PUSCH and a retransmission PUSCH employs a newly configured uplink HARQ timing relationship to: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

4. The method of claim 1, wherein when the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the UE determines the uplink HARQ timing relationship of the FDD serving cell as follows:

5. The method of claim 4, wherein uplink HARQ timing relationships on other subframes employ newly configured uplink HARQ timing fingers:

6. The method of claim 5, wherein the uplink HARQ timing with timing between PUSCH and retransmission PUSCH of 10ms refers to:

7. The method of claim 5, wherein the timing between PUSCH and retransmission PUSCH is 20ms uplink HARQ timing finger:

8. The method of claim 4,

when the T is 2, the subframes {2, 3, 4, 7, 8, 9} form a subframe set, and the uplink HARQ timing relation of all subframes in the subframe set adopts the uplink HARQ timing relation corresponding to TDD configuration 0; the sub-frames 0,1, 5,6 constitute another sub-frame set, and the uplink HARQ timing relationship of all sub-frames in the sub-frame set adopts the newly configured uplink HARQ timing, or,

9. The method of claim 4,

the uplink HARQ timing relationship of the FDD serving cell is determined according to the predefined uplink HARQ timing relationship configured by the TDD, where the predefined TDD configuration includes at least one of:

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

10. The method according to any of claims 4 to 9, wherein the uplink HARQ timing comprises one or several of:

11. The method of claim 1, wherein the device is a user device or a node device.

12. A user device, comprising:

13. The user equipment of claim 12, wherein when the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the TDD serving cell as follows:

14. The user equipment of claim 13, wherein timing between the PUSCH and the retransmitted PUSCH employs a newly configured uplink HARQ timing relationship to: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

15. The user equipment of claim 12, wherein when the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the FDD serving cell as follows:

16. The user equipment of claim 15, wherein the uplink HARQ timing relationships on other subframes employ the newly configured uplink HARQ timing fingers:

17. The user equipment of claim 16, wherein the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing finger:

18. The user equipment of claim 16, wherein the timing between PUSCH and retransmission PUSCH is 20ms uplink HARQ timing finger:

19. The user equipment of claim 15,

20. The user equipment of claim 15,

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

21. The user equipment according to any of claims 15 to 20, wherein the uplink HARQ timing comprises one or several of:

22. A node apparatus, comprising:

23. The node device of claim 22, wherein when the FDD serving cell is a scheduling serving cell and the TDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship for the TDD serving cell as follows:

24. The node device of claim 23, wherein timing between the PUSCH and the retransmitted PUSCH employs a newly configured uplink HARQ timing relationship to: the timing between PUSCH and retransmission PUSCH is 10ms uplink HARQ timing.

25. The node device of claim 22, wherein when the TDD serving cell is a scheduling serving cell and the FDD serving cell is a scheduled serving cell, the first unit determines the uplink HARQ timing relationship of the FDD serving cell as follows:

26. The node device of claim 25, wherein uplink HARQ timing relationships on other subframes employ the newly configured uplink HARQ timing fingers:

27. The node device of claim 26, wherein the uplink HARQ timing with timing between PUSCH and retransmission PUSCH of 10ms refers to:

28. The node device of claim 26, wherein the timing between PUSCH and retransmission PUSCH is 20ms uplink HARQ timing finger:

29. The node apparatus of claim 25,

30. The node apparatus of claim 25,

the TDD serving cells for dispatching FDD have the same configuration;

signaling the indicated TDD configuration;

TDD configuration 0;

TDD configuration 3;

TDD configuration 6.

31. The node equipment according to any of claims 25 to 30, wherein the uplink HARQ timing comprises one or several of: