CN114189322B

CN114189322B - Physical control channel indication method and equipment

Info

Publication number: CN114189322B
Application number: CN202111679030.6A
Authority: CN
Inventors: 王志勤; 闫志宇; 杜滢; 沈霞; 焦慧颖
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-07-11
Anticipated expiration: 2041-12-31
Also published as: CN114189322A

Abstract

The application provides an indication method and equipment of a physical control channel, which solve the problem of how to perform cell switching on uplink control information of a semi-statically scheduled PDSCH. The method comprises the following steps: the downlink control information is used for scheduling the PDSCH of downlink data, the downlink control information comprises first indication information used for determining a target time unit, and the target time unit is used for feeding back the response HARQ-ACK of at least one PDSCH in the downlink data; a first cell configured with a first time difference alternative value and a first time unit length; a reference cell configured with a second time difference alternative value and a second time unit length; and under the condition that CRC in the downlink control information is scrambled by different RNTI, the first indication information is an option in the first or second time difference alternative value, and the target time unit of the target cell is determined according to the product of the value of the option and the length of the first or second time unit.

Description

Physical control channel indication method and equipment

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a physical control channel indication method and apparatus.

Background

In the current system, PUCCH is only transmitted in the primary cell PCell, so that the problems of unbalanced load between the primary cell PCell and the secondary cell SCell and poor HARQ-ACK feedback delay characteristic are caused. Supporting transmission of PUCCH on multiple uplink carriers (cells), allowing a cell from which a terminal device transmits PUCCH to switch between PCell and scells, may solve this problem in two possible ways of switching PUCCH cells:

in the first mode, a PUCCH cell is dynamically indicated, and a DCI format used in the PDCCH carries a "PUCCH cell/BWP indication" field for indicating which cell/BWP feedback the HARQ-ACK corresponding to the PDSCH currently scheduled. The "PDSCH-to-harq_ feedback timing indicator" field in the DCI format corresponds to one value of a time difference alternative K1 of the target cell configuration indicated by the "PUCCH cell/BWP indication", where K1 is granularity of the time unit length of the target cell.

Mode two, semi-static indication of PUCCH cells, does not have a "PUCCH cell/BWP indication" field in the DCI format used for PDCCH. The "PDSCH-to-harq_ feedback timing indicator" field in the DCI format corresponds to one value in the time difference alternative K1 of the PCell configuration, where K1 is granularity of the length of the time unit of the PCell.

However, the prior art cannot determine how the above two ways support hybrid automatic repeat request acknowledgement of the semi-statically scheduled PDSCH. There are 3 kinds of HARQ-ACK information related to SPS scheduling, including:

1. the SPS PDSCH with the corresponding PDCCH, specifically the first SPS PDSCH of the PDCCH schedule with SPS activated, has corresponding HARQ-ACK information called the first SPS HARQ-ACK.

2. The SPS PDSCH without the corresponding PDCCH, specifically, the second SPS PDSCH and subsequent SPS PDSCH of the PDCCH schedule activating SPS, whose corresponding HARQ-ACKs are referred to as the second and subsequent SPS HARQ-ACKs.

3. PDCCH for releasing SPS.

An SPS activation is associated with a first SPS PDSCH with dynamic indication and a second and subsequent SPS PDSCH without dynamic indication, for which a dynamic PDCCH is associated. For other SPS PDSCH, the associated PDCCH is not predicted. Therefore, the prior art cannot solve the problem of how to determine the time unit of feedback SPS HARQ-ACK in two PUCCH switching modes.

Disclosure of Invention

The application provides an indication method and equipment of a physical control channel, which solve the problem of how to perform cell switching on uplink control information of a semi-statically scheduled PDSCH.

In a first aspect, an embodiment of the present application provides a physical control channel indicating method, including the following steps:

the downlink control information is used for scheduling the PDSCH of downlink data, the downlink control information comprises first indication information used for determining a target time unit, and the target time unit is used for feeding back the response HARQ-ACK of at least one PDSCH in the downlink data;

a first cell configured with a first time difference alternative value and a first time unit length;

a reference cell configured with a second time difference alternative value and a second time unit length;

under the condition that CRC in the downlink control information is scrambled by a second RNTI, the first indication information is used for indicating an option in a second time difference alternative value, and the product of the value of the option and the length of a second time unit is used as the time difference between a reference time unit on the reference cell and the at least one PDSCH; the location of the target time unit corresponding to the first PDSCH is then the time unit in the first cell that overlaps in time with the reference time unit.

Further, the method also comprises the following steps:

and under the condition that CRC in the downlink control information is scrambled by a first RNTI, the first indication information is an option in a first time difference alternative value, and the product of the value of the option and the length of a first time unit is used as the time difference between a target time unit and PDSCH of the downlink data on the first cell.

Preferably, the downlink control information includes second indication information for determining the first cell under the condition that the CRC in the downlink control information is scrambled with the second RNTI.

Preferably, in the semi-static scheduling downlink data scheduled by the downlink control information under the condition that the CRC in the downlink control information is scrambled by the second RNTI, the HARQ-ACK of the first PDSCH is fed back in the first cell.

Further preferably, under the condition that the CRC in the downlink control information is scrambled with the second RNTI, in the semi-static scheduling downlink data scheduled by the downlink control information, HARQ-ACKs of other PDSCH are fed back in the reference cell;

the first indication information is used for indicating an option in a second time difference alternative value, the product of the value of the option and the length of the second time unit is taken as the time difference between any one reference time unit and any one other PDSCH on the reference cell, and the target time unit corresponding to the other PDSCH is the reference time unit.

Preferably, the first RNTI is used for dynamically scheduling PDSCH, and the second RNTI is used for semi-statically scheduling PDSCH.

In any one of the embodiments of the first aspect of the present application, preferably, the first time length and the second time length are different; the time difference between the starting time of the target time unit and the starting time of the reference time unit is preset, or the downlink control information contains third indication information for indicating the time difference between the starting time of the target time unit and the starting time of the reference time unit.

In one embodiment of the present application, preferably, the first cell is preset. Further preferably, the first cell is the reference cell.

In any one embodiment of the present application, preferably, the first indication information is carried by a first field of a DCI format used by the downlink control information. Further preferably, the DCI format used by the downlink control information includes a cell index indication field, and the second indication information and/or the third indication information is carried by the cell index indication field.

In a second aspect, the present application further proposes a physical control channel indication method, which is used for a terminal device, and includes the steps of the physical control channel indication method according to any one of the embodiments of the first aspect of the present application, and further, the terminal device:

receiving the downlink control information and identifying the first indication information;

descrambling the CRC in response to the second RNTI,

determining an option in the second time difference alternative value according to the first indication information, and further determining the reference time unit;

the target time unit is determined on the first cell.

Preferably, the terminal device descrambles the CRC in response to the first RNTI, determines an option in the first time difference alternative value according to the first indication information, and further determines the target time unit on the first cell.

Preferably, the terminal device receives the downlink control information and identifies second indication information; and determining the first cell according to the second indication information.

Preferably, the terminal device descrambles the CRC in response to the second RNTI, and the target time unit determined on the first cell is used for feeding back HARQ-ACK of the first PDSCH in the semi-static scheduling downlink data scheduled by the downlink control information; and the target time unit is determined on the reference cell and is used for feeding back the HARQ-ACK of other PDSCH in the semi-static scheduling downlink data of the downlink control information scheduling.

Preferably, the terminal device receives the downlink control information and identifies third indication information; and when the target time unit is positioned in the first cell, the first time length and the second time length are different, determining the time difference between the target time unit and the reference time unit according to the third indication information.

In any one embodiment of the second aspect of the present application, preferably, the terminal device identifies the first indication information through information carried by a first field in a DCI format used by the downlink control information. Further preferably, the terminal device identifies the second indication information and/or the third indication information through information carried by a cell index indication field in a DCI format used by the downlink control information.

In a third aspect, the present application further provides a physical control channel indication method, which is used for a network device, and includes the steps of the physical control channel indication method according to any one of the embodiments of the first aspect of the present application, and further, the network device:

transmitting downlink control information, wherein the downlink control information comprises the first indication information, and CRC (cyclic redundancy check) of the downlink control information is scrambled by using a second RNTI;

determining an option in the second time difference alternative value according to the first indication information, determining the reference time unit on the reference cell, and determining the target time unit on the first cell;

and receiving HARQ-ACK information in the target time unit.

Preferably, the network device: and sending semi-static configuration information, wherein the semi-static configuration information comprises configuration of PUCCH resources for the first cell and is used for feeding back HARQ-ACK of the downlink data PDSCH configured in a semi-static mode.

Preferably, the CRC of the downlink control information is scrambled with a first RNTI; the network device: determining an option in the first time difference alternative value according to the first indication information, and further determining the target time unit on the first cell; and receiving HARQ-ACK information in the target time unit.

Preferably, the network device: the downlink control information also comprises second indication information;

and determining the first cell according to the second indication information.

Preferably, in response to the second RNTI scrambling the CRC, receiving HARQ-ACK of the first PDSCH in the semi-statically scheduled downlink data scheduled by the downlink control information in the target time unit determined on the first cell; and receiving HARQ-ACK of other PDSCH in the semi-static scheduling downlink data of the downlink control information scheduling in the target time unit determined on the reference cell.

Preferably, the downlink control information includes third indication information; when the target time unit is located in the first cell, the first time length and the second time length are different, the network information determines a time difference between the target time unit and the reference time unit according to the third indication information so as to correctly receive the HARQ-ACK.

In any one embodiment of the third aspect of the present application, preferably, the network device sends the first indication information through information carried by a first field in a DCI format used by the downlink control information; further preferably, the network device sends the second indication information and/or the third indication information through information carried by a cell index indication field in a DCI format used by the downlink control information. In a fourth aspect, the present application further proposes a physical control channel transmission method, for a terminal device, which is characterized by comprising the following steps:

Determining that the PUCCH is switched between at least two cells;

determining SPS configuration information, wherein the SPS configuration information comprises configuring target PUCCH resources for a first cell, and the target PUCCH resources are used for feeding back HARQ-ACK of an SPS PDSCH, and the first cell is a secondary cell;

acquiring an SPS PDSCH, and determining that HARQ-ACK feedback corresponding to the SPS PDSCH is positioned in a target time unit of the first cell;

and transmitting the HARQ-ACK of the SPS PDSCH by using the target PUCCH resource in the target time unit.

Preferably, before the step of transmitting the HARQ-ACK of the SPS PDSCH by the target time unit using the target PUCCH resource, the method further includes:

and acquiring PUCCH configuration information, and determining that PUCCH resources for feeding back HARQ-ACK feedback corresponding to the SPS PDSCH are not configured for the first cell in the PUCCH configuration information.

In a fifth aspect, the present application further provides a physical control channel transmission method, for a network device, including the following steps:

transmitting SPS configuration information, wherein the SPS configuration information comprises configuring target PUCCH resources for a first cell, and the target PUCCH resources are used for feeding back HARQ-ACK of an SPS PDSCH, and the first cell is a secondary cell;

transmitting an SPS PDSCH, wherein the SPS PDSCH corresponds to a target time unit with HARQ-ACK feedback in the first cell;

and receiving the HARQ-ACK of the SPS PDSCH by using the target PUCCH resource in the target time unit.

Further, the method also comprises the following steps:

before the target time unit transmits the HARQ-ACK of the SPS PDSCH with the target PUCCH resource, the method further includes the steps of:

transmitting PUCCH configuration information;

and the PUCCH configuration information does not configure PUCCH resources for feeding back HARQ-ACK feedback corresponding to the SPS PDSCH for the first cell.

In a sixth aspect, an embodiment of the present application further provides a terminal device, configured to implement the method according to any one of the embodiments of the first and second aspects of the present application, where at least one module in the terminal device is configured to at least one function of: receiving the PDSCH of the downlink control information and the downlink data; identifying the first indication information; determining the reference time unit and/or the target time unit; and transmitting the HARQ-ACK information.

Further, an embodiment of the present application further proposes a terminal device, configured to implement the method according to any one of the embodiments of the fourth aspect, where at least one module in the terminal device is configured to at least one function of: receiving SPS configuration information; determining the target PUCCH resource; determining a target time unit; and transmitting HARQ-ACK of the SPS PDSCH.

In a seventh aspect, the embodiments of the present application further provide a network device, configured to implement the method according to any one of the first and third embodiments of the present application, where at least one module in the network device is configured to at least one of the following functions: determining first indication information and sending the downlink control information; determining the reference time unit and/or the target time unit; and receiving the HARQ-ACK information.

Further, an embodiment of the present application further proposes a network device, configured to implement a method according to any one of the embodiments of the fifth aspect of the present application, where at least one module in the network device is configured to at least one of the following functions: sending SPS configuration information; determining the target PUCCH resource; determining a target time unit; and receiving the HARQ-ACK of the SPS PDSCH.

In an eighth aspect, embodiments of the present application further provide a communication device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of the embodiments of the first aspect of the present application.

In a ninth aspect, the present application also proposes a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any one of the embodiments of the first aspect of the present application.

In a tenth aspect, the present application further proposes a mobile communication system, which comprises at least one network device according to any one of the embodiments of the present application and/or at least one terminal device according to any one of the embodiments of the present application.

The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:

therefore, the method solves the problem of how to determine the time unit for feeding back the SPS HARQ-ACK in two PUCCH switching modes, and meets the requirements of solving the problems of unbalanced load between the PCell and the SCell and poor HARQ-ACK feedback delay characteristics. Moreover, under the condition that the terminal equipment does not support multiple SPS configuration sets, the SPS-PUCCH-AN-List is not required to be configured for each PUCCH cell in the PUCCH-Config, so that the resource configuration efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a schematic diagram of an OFDM parameter configuration in the prior art;

fig. 2 is a schematic diagram of a time unit for determining HARQ-ACK feedback according to the prior art;

fig. 3 is a timing diagram of SPS configured PDSCH and corresponding HARQ-ACK feedback in the prior art;

FIG. 4 is a flow chart of an embodiment of the method of the present application;

fig. 5 is a diagram of a semi-static indication PUCCH cell;

fig. 6 is a diagram of a dynamic indication PUCCH cell;

Fig. 7 is a flowchart of an embodiment of a method for a terminal device according to the present application;

fig. 8 is a HARQ-ACK transmission time unit determination method for SPS PDSCH when dynamically indicating PUCCH cells;

FIG. 9 is a flow chart of an embodiment of a method of the present application for a network device;

FIG. 10 is a flowchart of another embodiment of a method for a terminal device according to the present application;

FIG. 11 is a flow chart of another embodiment of a method of the present application for a network device;

FIG. 12 is a schematic diagram of an embodiment of a network device;

FIG. 13 is a schematic diagram of an embodiment of a terminal device;

fig. 14 is a schematic structural diagram of a network device according to another embodiment of the present invention;

fig. 15 is a block diagram of a terminal device according to another embodiment of the present invention.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of an OFDM parameter configuration in the prior art.

In the new air interface system, the length of one radio frame is 10ms, including 10 subframes. The sets of OFDM parameter configurations, such as subcarrier spacing size, cyclic prefix size, etc., used by different cells may not be the same. As described in 3GPP TS 38.211V16.5.0, 4.2, the OFDM parameter configuration set is preset with a specific index μ, the sub-carrier interval corresponding to μ=0 is 15KHz, the cyclic prefix is of normal type, the sub-carrier interval corresponding to μ=1 is 30KHz, the cyclic prefix is of normal type, etc. The number of slots included in 1 subframe is not equal for different μ. As shown in fig. 1, a cell with μ=0 includes 10 slots in one subframe, and each slot is 1ms in length. A cell with μ=1 includes 20 slots in one subframe, each slot being 0.5ms in length.

The specific mode that the terminal equipment transmits the HARQ-ACK information through the PUCCH and needs to determine the time unit of the HARQ-ACK feedback according to the HARQ-ACK feedback time sequence indication information or the high-layer signaling comprises the following steps: the RRC signaling configures one or more HARQ-ACK feedback timing values K1 for indicating the number of time cell offsets between the time cell in which the PUCCH carrying HARQ-ACK feedback is located with respect to the PDSCH or the end time cell of the PDCCH indicating SPS PDSCH release. If K1 includes only 1 value, the offset number of time units between PDSCH and HARQ-ACK is the configuration value. If K1 includes a plurality of values, the offset number of the time cell between PDSCH and HARQ-ACK indicates one from the plurality of values by "PDSCH-to-harq_ feedback timing indicator (PDSCH-to-HARQ-ACK feedback timing indication)" information in the DCI format used by PDCCH, assuming that the indicated value is K.

Fig. 2 is a schematic diagram of a time unit for determining HARQ-ACK feedback according to the prior art.

With the current technology, when the terminal device supports multiple uplink carriers (cells), the terminal device only transmits PUCCH in an uplink Primary Cell (PCell), where the granularity of the K1 configuration value is the time granularity on the PCell, for example, the slot length of the PCell. Assume that the set of OFDM parameters on the uplink PCell is configured as μ _UL The length of one Slot is Slot _{μ_UL} The OFDM parameter set of the Cell where the PDSCH is located is configured as mu _DL The length of one Slot is Slot _{μ_DL} . If PDSCH is located in downlink slot n _D HARQ-ACK feedback is located in uplink time slot n _U . The time difference between the PDSCH and the corresponding HARQ-ACK time unit is k, which means the uplink reference time slot n 'corresponding to the PDSCH' _U And slot n _U The time difference between them is k slots _{μ_UL} . Here, the PDSCH corresponds to the uplink reference slot n' _U Is and downlink time slot n _D There is a last uplink time slot overlapping in time. If Slot _{μ_UL} >Slot _{μ_DL} ，n′ _U Is and downlink time slot n _D The uplink time slots overlap in time. If Slot _{μ_UL} <Slot _{μ_DL} ，n′ _U Is and downlink time slot n _D The last of the plurality of uplink slots that overlap in time. As shown in FIGS. 2 (a) and (b), respectively, are Slot _{μ_UL} <Slot _{μ_DL} And Slot _{μ_UL} >Slot _{μ_DL} Is a schematic diagram of (a). If Slot _{μ_UL} >Slot _{μ_DL} Each K1 value corresponds to X downlink transmission time slots; if Slot _{μ_UL} <Slot _{μ_DL} The consecutive X K1 values have only one corresponding downlink transmission slot. Wherein, the liquid crystal display device comprises a liquid crystal display device,

fig. 3 is a timing diagram of SPS configured PDSCH and corresponding HARQ-ACK feedback in the prior art.

For Semi-persistent scheduling SPS (Semi-Persistent Scheduling), the network device does not need to transmit PDCCH to the terminal device once every time PDSCH is scheduled, but periodically allocates the resources of PDSCH to a certain terminal device through one PDCCH scheduling. Briefly, the base station uses the CS-RNTI scrambled PDCCH to specify radio resources (referred to herein as SPS resources) used by the terminal device, which the terminal device uses to receive data every one period. The base station does not need to issue PDCCH to specify the allocated resources. For each PDSCH transmission of SPS scheduling, the terminal device transmits HARQ-ACK information corresponding to each PDSCH on its PUCCH resource. If the terminal equipment receives the PDSCH related to SPS scheduling in the time slot n, the terminal equipment feeds back the HARQ-ACK corresponding to the PDSCH in the time slot n+k. The value of k is determined in the same way as the PDCCH schedules the dynamic PDSCH. Fig. 2 is a schematic diagram showing the timing relationship between PDSCH of SPS and PUCCH for transmitting HARQ-ACK, taking k=4 as an example, where the period of SPS configuration is 2 ms. After acquiring the PDCCH activating the SPS, the terminal equipment receives the PDSCH configured by the SPS in the time slots n, n+2, n+4, n+6 and … …, and correspondingly sends HARQ-ACK information of each PDSCH configured by the feedback SPS in the time slots n+4, n+6 and … … according to a decoding result.

Fig. 4 is a flow chart of an embodiment of the method of the present application.

The embodiment of the application provides a physical control channel indication method, which comprises the following steps 101-104:

step 101, determining a cell configuration and a cell switching function of transmitting the PUCCH.

in this application, when supporting the cell switching function of the uplink physical control channel of the terminal device, the PUCCH may be switched from the current cell to the target cell, and in the following embodiments of the present application, the target cell may be the first cell or the reference cell. When processing according to the PDSCH scheduling mode, the target cell may be selected as the first cell or the reference cell. Preferably, the reference cell is PCELL, and the first cell is SCELL. In general, the current cell may be a PCELL, or any other cell.

Step 102, downlink control information is used for scheduling PDSCH of downlink data, where the downlink control information includes first indication information used for determining a target time unit, and the target time unit is used for feeding back acknowledgement HARQ-ACK of at least one PDSCH in the downlink data.

And 103, when the CRC in the downlink control information is scrambled by the second RNTI, processing the target cell and the target time unit, and positioning the target time unit according to the reference cell time configuration.

The first time length and the second time length are different; the time difference between the target time unit and the reference time unit is preset, or the downlink control information contains third indication information, which is used for indicating the time difference between the target time unit and the reference time unit.

And 104, when the CRC in the downlink control information is scrambled by the first RNTI, processing the target cell and the target time unit, and positioning the target time unit according to the first cell time configuration.

Regarding the selection and setting of RNTI. Preferably, the first RNTI is used for dynamically scheduling PDSCH of downlink data, and the second RNTI is used for semi-statically scheduling PDSCH of downlink data. That is, the first RNTI is a C-RNTI, MCS-RNTI, etc., and the second RNTI is a CS-RNTI.

In a preferred embodiment of the present application, the time difference indicated by the information carried in the "PDSCH to HARQ-ACK feedback timing indication" field (i.e., the first indication information) is determined according to the difference between the C-RNTI and the CS-RNTI scrambling: and if the C-RNTI is the C-RNTI, a dynamic scheduling PDSCH switching technical scheme is used. In case of CS-RNTI, no matter which cell is indicated by the information carried by the "PUCCH cell/BWP indication" field (i.e. the second indication information), the information carried by the "PDSCH to HARQ-ACK feedback timing indication" field indicates that K is one value in K1 of the reference cell configuration. First, a reference time unit is determined according to the time unit where the PDSCH is located, k and the time unit length of the reference cell. Preferably, the reference cell is a PCell.

There are 3 processing modes:

Mode 1,

For a first SPS PDSCH of a PDCCH schedule activating SPS, transmitting SPS HARQ-ACKs in one of time units overlapping with a reference time unit in a cell of a "PUCCH cell/BWP indication"; for a second SPS PDSCH and subsequent SPS PDSCHs of the PDCCH schedule that activates SPS, a reference time unit is determined as a time unit for transmitting SPS HARQ-ACK.

Mode 2,

The PUCCH cell/BWP indication field is a reserved field, and each SPS PDSCH (including any one of the first, second, and … … nth SPS PDSCH) is transmitted in the PCell with a corresponding SPS HARQ-ACK.

Mode 3,

The "PUCCH cell/BWP indication" field is for second indication information for indicating a time difference between a start time of a target time unit transmitting SPS HARQ-ACK and a start time of a reference time unit. (corresponding to the manner in which PUCCH cells are semi-statically switched).

First, a reference time unit is determined according to the time unit where the PDSCH is located, k and the time unit length of the reference cell. And then determining a target time unit according to the relation among the reference time unit, the semi-static preset cell for transmitting the PUCCH and the time position.

If the time slot overlapping with the reference time unit on the target cell includes two or more than two, and the preset target time unit is the first time unit overlapping with the reference time unit in the target cell, the load of the HARQ-ACK feedback is unbalanced in time. As shown in fig. 5, it is determined that the reference time unit is located in slot C of the PCell. Determining that the actually transmitted PUCCH is positioned in the SCell according to the time position of the reference time unit, the relation between a semi-static preset cell for transmitting the PUCCH and the time position, wherein two time slots overlapped with the time slot C on the SCell are provided: slot L and slot M. If it is always determined that the target PUCCH is transmitted in slot L, the load of HARQ-ACK feedback is unbalanced between slot L and slot M.

For this, the "PUCCH cell/BWP indication" field in the PDCCH may also be used to carry third indication information for indicating one of the slots overlapping with the reference time unit on the target cell as the target time unit.

The embodiment solves the problem of how to determine the time unit for feeding back the SPS HARQ-ACK in two PUCCH switching modes, and meets the requirements of solving the problems of unbalanced load between the PCell and the SCell and poor HARQ-ACK feedback delay characteristics.

Fig. 5 is a diagram of a semi-static indication PUCCH cell.

When the PUCCH cell is semi-statically switched, the relationship between the cell transmitting the PUCCH and the time position is semi-statically preset, for example, the PUCCH is transmitted with the PCell in the first time interval and the PUCCH and … … are transmitted with the SCell in the second time interval. There is no "PUCCH cell/BWP indication" field in the DCI format used for the PDCCH scheduling the PDSCH. The terminal equipment firstly determines a reference time unit for transmitting uplink control information on the PCell, and then determines the actually transmitted PUCCH according to the relation among the reference time unit, a semi-static preset cell for transmitting the PUCCH and the time position.

As shown in fig. 5, the terminal device supports switching transmission PUCCH between PCell and SCell. The network device presets that the cell of the terminal device sending the PUCCH is switched according to the modes of PCell, SCell, SCell, PCell, PCell, SCell, SCell, PCell and … … by taking the time slot lengths of the two PCell as granularity. K1= {3,4,5,6} of the PCell configuration, the slot length on PCell is 2 times that of SCell. Fig. 5 shows that for PDSCH transmission of downlink slot a, the reference time unit is located in slot C of the PCell. According to the first indication information, the second indication information and the third indication information, determining the relation among the time of the reference time unit, the semi-static preset cell for transmitting the PUCCH and the time position, and determining that the target time unit (the time for actually transmitting the HARQ-ACK) is positioned in the first time slot, namely the instant L, or the second time slot, namely the instant M, which is positioned on the SCell and is overlapped with the time slot C in time.

Fig. 6 is a diagram of a dynamic indication PUCCH cell.

The terminal device switches between PCell and SCell to transmit PUCCH. For example, k1= {3,4,5,6} for the PCell configuration, k1= {1,2,3,4,5,6,7,8} for the SCell configuration, the slot length on the PCell is 2 times the SCell. As shown in fig. 3, for PDSCH transmission of time slot a of the downlink PCell, the PUCCH for transmitting its HARQ-ACK information may be located in time slot B, C, D, E of the PCell, and time slot F, G, H, I, J, K, L, M on the SCell. If the "PUCCH cell/BWP indication" information corresponds to PCell, and the "PDSCH-to-harq_ feedback timing indicator" indication k=3, PUCCH is located in slot B of PCell. Alternatively, if the "PUCCH cell/BWP indication" (i.e. first indication information) information corresponds to the SCell and the "PDSCH-to-harq_ feedback timing indicator" indication k=3, the PUCCH is located in slot H of the SCell.

Fig. 7 is a flowchart of an embodiment of a method for a terminal device according to the present application.

The application also provides a physical control channel indication method, which is used for terminal equipment and comprises the steps of the physical control channel indication method according to any one embodiment of the first aspect of the application, and specifically relates to the following steps 201 to 205:

step 201, determining that the PUCCH is switched between at least two cells.

Whether the PUCCH cell switching is supported or not, and the processing capacity requirements of different PUCCH cell switching modes on the terminal equipment are different. The terminal device may report its own processing capabilities to the network device. And the network equipment sends the PUCCH cell switching mode to the terminal equipment through the configuration information. Optionally, if the network device does not send configuration information of the PUCCH cell switching mode, the terminal device is not supported to switch PUCCH cells, and the default PUCCH cell is a primary cell in the cell group.

Step 202, the terminal device receives the downlink control information and identifies the first indication information.

In step 202, a PDCCH is acquired, where the PDCCH is used to schedule a PDSCH, and a target time unit is determined according to an instruction of the PDCCH, where the target time unit is located in a first cell and is used to feed back HARQ-ACK corresponding to the PDSCH;

regarding the first indication information, for example, a DCI format used by the PDCCH includes a first field, where the first field carries a first value.

The DCI format length of the PDCCH scrambled by the C-RNTI is the same as that of the PDCCH scrambled by the CS-RNTI, and for various PUCCH cell switching modes, the target time unit can be determined to meet the requirements of the flexible switching of the PUCCH transmitting cell and the load balance by setting different interpretation modes of specific fields of the DCI format in the PDCCH scrambled by the C-RNTI and the CS-RNTI and presetting the switching rules of the PUCCH cell. Here, it is assumed that the target time unit is located in the first cell. The first cell is one of at least two cells supporting PUCCH handover. The first cell is configured with a first time difference alternative value and a first time unit length.

For PDSCH scheduled with CS-RNTI scrambled PDCCH, the target time unit is located in the first cell. To determine the target time unit, the reference time unit is determined with an indication of a first field in a DCI format used by the PDCCH. Preferably, the first field is a "PDSCH-to-harq_ feedback timing indicator" field in the DCI format. The first field carries a first value. When the target time unit is determined by the first value, the first value is not related to the first time difference candidate value configured for the first cell and the first time unit length, but is related to the second time difference candidate value configured for the reference cell and the second time unit length.

Step 203, the terminal device descrambles the CRC in response to the second RNTI, determines an option in the second time difference alternative value according to the first indication information, further determines the reference time unit, and then determines the target time unit on the first cell.

In step 203, when the CRC of the DCI format is scrambled with a second RNTI, selecting one from the second time difference alternatives with the first value, the product of the second time unit length being the time difference between the PDSCH and a reference time unit, the target time unit being a time unit in the target cell that overlaps in time with the reference time unit;

If the DCI format used by the PDCCH comprises an indication field of a target PUCCH cell index, wherein the indication field of the target PUCCH cell index corresponds to a first cell, when the PDCCH is scrambled by the C-RNTI, determining a target time unit of the first cell according to a first field in the DCI format, and the first field corresponds to a first parameter set and a first time unit length. When the PDCCH is scrambled by the CS-RNTI, a first field in the DCI format corresponds to a second parameter set and a second time unit length, a reference time unit for feeding back the SPS HARQ-ACK is determined by the first field, and a target time unit is determined in a target cell according to the time of the reference time unit. Preferably, the reference cell refers to a primary cell. The RNTI scrambling the CRC in the DCI format used by the PDCCH for dynamically scheduling the PDSCH is called a first RNTI, the C-RNTI is one form of the first RNTI, and the first RNTI can also be an MCS-RNTI and the like. The RNTI scrambling the CRC in the DCI format used for the PDCCH of the semi-persistent scheduling PDSCH is referred to as a second RNTI.

The field of the second indication information is a cell index indication field. It should be noted that, when the first cell is preset, a field of the second indication information is reserved, and the field may be further used as third indication information.

The terminal equipment responds to the second RNTI to descramble the CRC, and a target time unit determined on a first cell is used for feeding back HARQ-ACK of a first PDSCH in semi-static scheduling downlink data scheduled by downlink control information; and the target time unit is determined on the reference cell and is used for feeding back the HARQ-ACK of other PDSCH in the semi-static scheduling downlink data of the downlink control information scheduling.

Step 204, the terminal equipment descrambles the CRC in response to the first RNTI, and determines an option in the first time difference alternative value according to the first indication information, so as to determine the target time unit on the first cell.

When scrambling the CRC of the DCI format by using a first RNTI, selecting one from the first time difference alternative values by using the first value, wherein the product of the first time unit length and the first time unit length is the time difference between the PDSCH and the target time unit;

if the DCI scheduled by the PDSCH is scrambled by the first RNTI, a first field indicates one value of time difference alternatives K1 configured for the first cell, and a sending target time unit is determined on the first cell according to the time unit length corresponding to the first cell and the value. Since the first RNTI scrambled DCI schedules PDSCH transmission only once, the cell transmitting PUCCH can be flexibly determined in this manner, and the PUCCH transmission cell flexibility switching and load balancing requirements are satisfied.

If the DCI of PDSCH scheduling is scrambled with CS-RNTI, which is used to activate SPS transmission, the PDCCH is associated with a plurality of SPS PDSCHs. The first SPS PDSCH of the PDCCH schedule including the active SPS and the second SPS PDSCH and subsequent SPS PDSCH transmitted in the SPS configured period after the active SPS. If the indication mode of scrambling the DCI with the first RNTI is adopted, no matter which target cell the 'PUCCH cell/BWP indication' field corresponds to, the time difference value between the PDSCH indicated by the first field and the HARQ-ACK is one of time difference alternatives K1 configured by the reference cell, and the time unit length of the reference cell and the time unit for transmitting the HARQ-ACK is determined on the reference cell by the value as the reference time unit. Then, a target time unit is determined in the first cell based on the time position of the reference time unit.

Fig. 8 shows a HARQ-ACK transmission time unit determination method for SPS PDSCH when dynamically indicating PUCCH cells. As shown in fig. 8, the PDCCH information is scrambled with a second RNTI, and the DCI format includes an indication field of a target PUCCH cell index, which indicates the SCell. The first field indicates k=3, which corresponds to k1= {3,4,5,6} and the slot length of PCell configuration. The reference time units for HARQ-ACK feedback for the first, second, and third SPS PDSCH are determined to be time slot B, time slot D, and time slot F of the PCell, respectively, according to k=3 and the time slot length of the PCell. For the first SPS PDSCH, according to the indication of the PDCCH, determining the first time slot overlapped with the time slot B on the SCell of the target cell as a target time unit, namely the time slot K of the SCell. For the HARQ-ACK of the second SPS PDSCH and the subsequent SPS PDSCH, the first cell is the PCell, and the reference time unit is the target time unit.

It should be noted that the reference cell is a cell preset for determining the time position of the target time unit. The first value of the first field and the configured second time difference alternative value of the reference cell correspond to a second time unit length. The first cell is the cell in which the target time unit is located. The first cell and the reference cell are not limited to being different here. In some cases, the reference cell is the first cell.

Step 205, transmitting HARQ-ACK of the PDSCH in the target time unit.

Or, if the DCI format used by the PDCCH includes an indication field of a target PUCCH cell index, determining the first cell according to the indication field of the target PUCCH cell index when the PDCCH is scrambled with the C-RNTI. When the PDCCH is scrambled with a CS-RNTI, default HARQ-ACK feedback is located in a primary cell. In this way, the indication field of the target PUCCH cell index in the DCI format may be used as a reserved field in the case of CS-RNTI scrambling, and the information carried by the reserved field is not interpreted.

Further alternatively, the target time unit may be determined in a manner that a dynamic handover PUCCH cell and a semi-static handover PUCCH cell are combined. When PDCCH is scrambled by CS-RNTI, the target reference time unit fed back by HARQ-ACK is positioned in the main cell, and then the target time unit is determined by using a preset semi-static switching PUCCH cell mode. In this way, the indication field of the target PUCCH cell index in the DCI format may be used as a reserved field in the case of CS-RNTI scrambling, where the information carried by the indication field is not interpreted and is in a reserved state. Alternatively, an indication field of the target PUCCH cell index in the DCI format may be used to indicate which of the time slots on the target cell that overlap with the reference time unit time is the target time unit in the case of CS-RNTI scrambling. As shown in fig. 4, it is determined that the reference time unit is located in slot C of the PCell. Determining that the actually transmitted PUCCH is located in the SCell according to the reference time unit, a semi-statically preset relationship between the cell for transmitting the PUCCH and the time position, where there are two slots overlapping with slot C on the SCell: slot L and slot M. Which of slot L and slot M the target time unit is may be indicated by an indication field of the target PUCCH cell index in the DCI format. The specific indication may be represented by a time difference between a preset reference time unit start position and a target time unit start position. For example, the time difference between the preset reference time unit starting position and the target time unit starting position is {0 slots, 1 slot }, corresponding to the slots L and M, respectively. The indication field of the target PUCCH cell index indicates "0 slots" and "1 slot }" indicating which of the slots overlapping the reference time unit in the first cell the target time unit is. Further, the time difference between the reference time unit and the start position of the target time unit may be expressed in absolute time instead of the number of time units, for example, preset to {0,0.25ms }, so that the target time unit may be indicated with the same preset value regardless of the slot length relationship between the target cell and the reference cell.

Fig. 9 is a flowchart of an embodiment of a method of the present application for a network device.

The application also provides a physical control channel indicating method, which is used for network equipment and comprises the steps of the physical control channel indicating method according to any one embodiment of the first aspect of the application:

step 301, transmitting configuration information, which is used for indicating terminal equipment to support to transmit PUCCH in at least two cells in a switching way;

step 302, preferably, the network device sends semi-static configuration information, including configuring PUCCH resources for the first cell, for feeding back HARQ-ACKs of the semi-statically configured downlink data PDSCH.

Step 303, the network device sends a PDCCH for scheduling a PDSCH, where the PDCCH is used to determine a target time unit, and the target time unit is located in the first cell and is used to feed back HARQ-ACK corresponding to the PDSCH, and the method includes:

the first cell is configured with a first time difference alternative value and a first time unit length, and the reference cell is configured with a second time difference alternative value and a second time unit length;

transmitting downlink control information, including the first indication information, for example, a DCI format used by the PDCCH includes a first field, where the first field carries a first value;

and determining the first cell according to the second indication information.

Step 304, processing when the CRC of the downlink control information is scrambled with a second RNTI.

And when the CRC of the downlink control information is scrambled by the second RNTI, the HARQ-ACK information is received in the target time unit.

for example, when the CRC of the DCI format is scrambled with a second RNTI, the first value is used to select one of the second time difference alternatives, the product of the second time unit length being the time difference between the PDSCH and a reference time unit, the target time unit being a time unit in the target cell that overlaps in time with the reference time unit;

In response to the second RNTI scrambling the CRC, when the second RNTI is a CS-RNTI, performing the steps 304A-B:

step 304A, receiving HARQ-ACK of a first PDSCH in the semi-static scheduling downlink data scheduled by the downlink control information in the target time unit determined on the first cell;

and step 304B, receiving HARQ-ACK of other PDSCH in the semi-static scheduling downlink data of the downlink control information scheduling in the target time unit determined on the reference cell.

Step 305, processing when the CRC of the downlink control information is scrambled with the first RNTI.

In the embodiments of steps 101 to 304, in order to further improve the efficiency, considering the problem of incomplete SCell configuration information in the prior art, the prior art supports PUCCH transmission in PCell, and reference 3GPP TS38.331 Vg.6.0,SPS configuration information "SPS-Config" includes PUCCH resource configuration information "n1PUCCH-AN" for carrying HARQ-ACK information of one SPS PDSCH. In addition, the PUCCH configuration information "PUCCH-Config" includes information such as PUCCH resources for HARQ-ACK feedback of the dynamic scheduling PDSCH, PUCCH resources for scheduling request, PUCCH resources for channel state information feedback, and PUCCH resources for HARQ-ACK of the multiple sets of SPS PDSCH. Wherein "SPS-PUCCH-AN-List" in "PUCCH-Config" is AN option for configuring a PUCCH resource set corresponding to feedback SPS HARQ-ACK under multiple sets of SPS configuration, including SPS PDSCH HARQ-ACK feedback for at least two different number of intervals. For example, a first PUCCH for HARQ-ACK of a 1-2 bit SPS PDSCH and a second PUCCH for HARQ-ACK of a 3-24 bit SPS PDSCH. In the case where the PUCCH resources of HARQ-ACKs of a plurality of SPS PDSCH are not configured in the "PUCCH-Config", if only HARQ-ACKs of 1-2 bits SPS PDSCH are included in the PUCCH, HARQ-ACKs of SPS PDSCH are transmitted using PUCCH resources configured in the "n1PUCCH-AN" in the "SPS-Config". In the case where the PUCCH resource set of "SPS-PUCCH-AN-List" is configured in "PUCCH-Config", HARQ-ACK of SPS PDSCH is transmitted using the first PUCCH resource in the PUCCH resource set. However, the prior art "SPS-Config" configuration includes only PUCCH resources for SPS HARQ-ACK in the PCell, and the "SPS-Config" configuration does not include PUCCH resources corresponding to SPS HARQ-ACK on other cells for PUCCH handover.

Further, when the terminal device supports PUCCH cell handover, the prior art is configured with respective independent configurations "PUCCH-Config" in cells supporting PUCCH transmission, respectively. In order to meet the requirement that the terminal device transmits PUCCH for carrying 1-2 bit SPS HARQ-ACKs in the secondary cell, the gNB has to configure "SPS-PUCCH-AN-List" in "PUCCH-Config" for each PUCCH cell, especially in the case of multiple SPS configuration operation, at least two different number of intervals of SPS PDSCH HARQ-ACK feedback are required, resulting in a low resource configuration efficiency.

In the present application, PUCCH resources for SPS HARQ-ACK on SCell are configured in SPS configuration information "SPS-Config". In the case that the terminal device does not support multiple SPS configurations, it is not necessary to configure "SPS-PUCCH-AN-List" for each PUCCH cell in "PUCCH-Config", and if the terminal device transmits a PUCCH of 1-2 bits SPS HARQ-ACK in AN SCell, PUCCH resources of SPS HARQ-ACK configured for the SCell in "SPS-Config" configuration are used. Thereby improving the resource allocation efficiency

In this application, a cell is taken as an example, and the cell is equivalent to a carrier. In practical application, the cell may be replaced by other frequency resource division units such as BWP, and the corresponding implementation manner and method are the same as those described in the embodiments of the present application.

In the present application, a time unit in a cell is taken as an example of a time slot, and in practical application, the time slot may be replaced by a time unit such as a sub-time slot, and the corresponding implementation manner and method are the same as those described in the embodiments of the present application.

It should be noted that, in the present application, the primary cell represents a primary cell in a cell group, and in practical application, the primary cell may be replaced by a cell in a secondary cell group for transmitting PUCCH, or may be replaced by a primary cell on a secondary node in a dual connectivity application, where the corresponding implementation manner and method are the same as those in the embodiments of the present application.

For this purpose, the present application further proposes a physical control channel transmission method for a terminal device, and fig. 10 is a flowchart of another embodiment of the method for a terminal device, including the following steps 801 to 805:

step 801, determining that the PUCCH is switched between at least two cells;

step 802, determining SPS configuration information, including configuring a target PUCCH resource for a first cell, which is a secondary cell, for feeding back HARQ-ACK of SPS PDSCH;

step 803, acquiring an SPS PDSCH, and determining that HARQ-ACK feedback corresponding to the SPS PDSCH is located in a target time unit of the first cell;

optionally, step 804, acquiring PUCCH configuration information, and determining that no PUCCH resource configured for feeding back HARQ-ACK feedback corresponding to the SPS PDSCH is configured for the first cell in the PUCCH configuration information.

In step 804, after determining that the HARQ-ACK feedback corresponding to the SPS PDSCH is located in the target time unit of the first cell, if the first cell is a secondary cell, the terminal device may use PUCCH resources configured in the SPS configuration information for the first cell and used for feeding back HARQ-ACK of the SPS PDSCH. Under the condition that the terminal equipment does not support multiple SPS configuration sets, the SPS configuration information comprises HARQ-ACK (hybrid automatic repeat request-acknowledgement) for feeding back SPS PDSCH (physical downlink shared channel) configured for the auxiliary cell, so that the requirement that the terminal equipment sends PUCCH (physical uplink shared channel) for carrying 1-2 bits of SPS HARQ-ACK in the auxiliary cell can be met, and 'SPS-PUCCH-AN-List' is not required to be configured for each PUCCH cell in 'PUCCH-Config', so that the resource configuration efficiency is improved.

Step 805, transmitting HARQ-ACK of the SPS PDSCH with the target PUCCH resource in the target time unit.

In the case where the terminal device supports PUCCH cell switching, cells supporting PUCCH transmission are each configured with a respective independent "PUCCH-Config". However, if "sps-PUCCH-AN-List" is not configured in "PUCCH-Config" of the PUCCH cell corresponding to the "PUCCH cell/BWP indication" field in the PDCCH. The HARQ-ACK for each SPS PDSCH is transmitted in the cell and PUCCH resources for HARQ-ACK transmission of the SPS PDSCH on the cell need to be included in the "SPS-Config" information. That is, PUCCH resources for HARQ-ACK of SPS PDSCH on each cell in the cell set supporting PUCCH feedback are included in the "SPS-Config" configuration information. In addition to the PUCCH resources for SPS HARQ-ACK, the "SPS-Config" configuration information includes SPS configured period, number of HARQ processes, HARQ process number offset, number of repeated transmissions, and the like.

Further, fig. 11 is a flowchart of another embodiment of the method for a network device. The application also discloses a physical control channel transmission method, which is used for network equipment and comprises the following steps 901-904:

step 901, sending SPS configuration information, including configuring a target PUCCH resource for a first cell, where the first cell is a secondary cell, for feeding back HARQ-ACK of an SPS PDSCH;

Step 902, transmitting an SPS PDSCH, where the SPS PDSCH corresponds to a target time unit in which HARQ-ACK feedback is located in the first cell;

step 903, transmitting PUCCH configuration information; and the PUCCH configuration information does not configure PUCCH resources for feeding back HARQ-ACK feedback corresponding to the SPS PDSCH for the first cell.

Step 904, receiving the HARQ-ACK of the SPS PDSCH by using the target PUCCH resource in the target time unit.

Fig. 12 is a schematic diagram of an embodiment of a network device.

The embodiment of the application also provides a network device, and the network device is used for: determining first indication information, second indication information and third indication information; transmitting the downlink control information; determining the reference time unit and/or the target time unit; and receiving the HARQ-ACK information.

In one embodiment of the present application, further, the network device is further configured to: sending SPS configuration information; determining the target PUCCH resource; determining a target time unit; and receiving the HARQ-ACK of the SPS PDSCH.

In order to implement the above technical solution, the network device 400 provided in the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403.

The network sending module is used for sending the configuration information, the downlink control information and the PDSCH.

The network determining module is used for determining first indication information, second indication information and third indication information, determining a target cell as a first cell or a reference cell and determining a target time unit.

The network receiving module is configured to receive the physical uplink control channel, and includes HARQ-ACK.

Specific methods for implementing the functions of the network sending module, the network determining module and the network receiving module are described in steps 101-104, 301-305 and 901-904 in each method embodiment of the present application, and are not described herein again.

Fig. 13 is a schematic diagram of an embodiment of a terminal device.

The application also proposes a terminal device, using the method of any one of the embodiments of the application, the terminal device being configured to: receiving the downlink control information and downlink data PDSCH; identifying the first indication information, the second indication information and the third indication information; determining the reference time unit and/or the target time unit; transmitting the HARQ-ACK information

In one embodiment of the present application, the terminal device is further configured to: receiving SPS configuration information; determining the target PUCCH resource; determining a target time unit; and transmitting HARQ-ACK of the SPS PDSCH.

In order to implement the above technical solution, the terminal device 500 provided in the present application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503.

The terminal receiving module is configured to receive the configuration information, the downlink control information, and the PDSCH.

The terminal determining module is used for determining the target cell as the first cell or the reference cell according to the first indication information, the second indication information and the third indication information, and determining the reference time unit and/or the target time unit.

The terminal sending module is configured to receive the physical uplink control channel, and includes HARQ-ACK.

Specific methods for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module are described in steps 101 to 104, steps 201 to 205 and steps 801 to 805 in each method embodiment of the present application, and are not described herein again.

The terminal device described in the present application may refer to a mobile terminal device and other user equipment UE connected to a network device through PDSCH/PUCCH.

Fig. 14 is a schematic structural diagram of a network device according to another embodiment of the present invention. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatuses over a transmission medium. The wireless interface performs the communication function with the terminal device, and processes wireless signals through the receiving and transmitting device, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program for executing any of the embodiments of the present application, which computer program runs or changes on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described here again.

Fig. 15 is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 700 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in terminal device 700 are coupled together by a bus system. Bus systems are used to enable connected communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

The user interface 703 may include a display, keyboard, or pointing device, such as a mouse, trackball, touch pad, or touch screen, among others.

The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, etc. for implementing various application services.

In an embodiment of the present invention, the memory 702 contains a computer program that executes any of the embodiments of the present application, the computer program running or changing on the processor 701.

The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and performs the steps of the above method in combination with its hardware. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 701, implements the steps of the method embodiments as described in any of the embodiments above.

The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the methods of the present application may be performed by integrated logic circuitry in hardware or instructions in software in processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In one typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and memory.

Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Accordingly, the present application also proposes a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of the embodiments of the present application. For example, the

memory

603, 702 of the present invention may include non-volatile memory in a computer-readable medium, random Access Memory (RAM) and/or non-volatile memory, etc., such as read-only memory (ROM) or flash RAM.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

Based on the embodiments of fig. 12 to 15, the present application also proposes a mobile communication system comprising at least 1 embodiment of any one of the terminal devices of the present application and/or at least 1 embodiment of any one of the network devices of the present application.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

In the present application, "first", "second" and "third" are used to distinguish between a plurality of objects having the same name, and do not have a sequential or size meaning.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. A method for indicating a physical control channel, comprising the steps of:

2. The physical control channel indicating method as claimed in claim 1, comprising the steps of:

3. The physical control channel indicating method as claimed in claim 1, comprising the steps of:

and under the condition that CRC in the downlink control information is scrambled by the second RNTI, the downlink control information comprises second indication information for determining the first cell.

4. The method of physical control channel indication of claim 1, wherein,

and under the condition that CRC in the downlink control information is scrambled by the second RNTI, HARQ-ACK of a first PDSCH in semi-static scheduling downlink data scheduled by the downlink control information is fed back in the first cell.

5. The method for indicating a physical control channel as claimed in claim 4, further comprising the steps of:

under the condition that CRC in the downlink control information is scrambled by a second RNTI, in semi-static scheduling downlink data of the downlink control information scheduling, HARQ-ACK of other PDSCH is fed back in the reference cell;

6. The physical control channel indicating method as claimed in claim 2, wherein:

the first RNTI is used for dynamically scheduling PDSCH, and the second RNTI is used for semi-statically scheduling PDSCH.

7. The method for indicating a physical control channel as claimed in claim 1 or 2, wherein,

the first time length and the second time length are different; the time difference between the start time of the target time unit and the start time of the reference time unit is preset.

8. The method of physical control channel indication of claim 3, wherein,

the first time length and the second time length are different; the downlink control information includes third indication information, which is used for indicating a time difference between the starting time of the target time unit and the starting time of the reference time unit.

9. The method for indicating a physical control channel as claimed in claim 8, wherein,

the first cell is preset.

10. The method for indicating a physical control channel as claimed in claim 8, wherein,

the first cell is the reference cell.

11. The method for indicating a physical control channel as claimed in claim 1 or 2, wherein,

The first indication information is carried by a first field of a DCI format used by the downlink control information.

12. The method for indicating a physical control channel as claimed in claim 8, wherein,

and the DCI format used by the downlink control information comprises a cell index indication field, and the second indication information and the third indication information are carried by the cell index indication field.

13. A physical control channel indicating method for a terminal device, comprising the steps of the physical control channel indicating method according to any one of claims 1 to 12,

descrambling the CRC in response to the second RNTI,

the target time unit is determined on the first cell.

14. The method of physical control channel indication of claim 13, wherein,

descrambling the CRC in response to the first RNTI,

and determining an option in the first time difference alternative value according to the first indication information, and further determining the target time unit on the first cell.

15. The method of physical control channel indication of claim 13, wherein,

receiving the downlink control information and identifying second indication information;

and determining the first cell according to the second indication information.

16. The method of physical control channel indication of claim 13, wherein,

descrambling the CRC in response to the second RNTI,

a target time unit determined on a first cell is used for feeding back HARQ-ACK of a first PDSCH in semi-static scheduling downlink data of the downlink control information scheduling;

and the target time unit is determined on the reference cell and is used for feeding back the HARQ-ACK of other PDSCH in the semi-static scheduling downlink data of the downlink control information scheduling.

17. The method of physical control channel indication of claim 15, wherein,

receiving downlink control information and identifying third indication information;

and when the target time unit is positioned in the first cell, the first time length and the second time length are different, determining the time difference between the target time unit and the reference time unit according to the third indication information.

18. The method of physical control channel indication of claim 13, wherein,

And identifying the first indication information through information carried by a first field in a DCI format used by the downlink control information.

19. The method of physical control channel indication of claim 17, wherein,

and identifying the second indication information and the third indication information through information carried by a cell index indication field in a DCI format used by the downlink control information.

20. A physical control channel indicating method for a network device, comprising the steps of the physical control channel indicating method according to any one of claims 1 to 12,

and receiving HARQ-ACK information in the target time unit.

21. The physical control channel indicating method as claimed in claim 20, further comprising the steps of:

and sending semi-static configuration information, wherein the semi-static configuration information comprises configuration of PUCCH resources for the first cell and is used for feeding back HARQ-ACK of the downlink data PDSCH configured in a semi-static mode.

22. The physical control channel indicating method as claimed in claim 20, further comprising the steps of:

the CRC of the downlink control information is scrambled by a first RNTI;

determining an option in the first time difference alternative value according to the first indication information, and further determining the target time unit on the first cell;

and receiving HARQ-ACK information in the target time unit.

23. The method of physical control channel indication of claim 20, wherein,

the downlink control information also comprises second indication information;

and determining the first cell according to the second indication information.

24. The method of physical control channel indication of claim 20, wherein,

scrambling the CRC in response to the second RNTI,

receiving HARQ-ACK of a first PDSCH in semi-static scheduling downlink data scheduled by downlink control information in a target time unit determined on a first cell;

and receiving HARQ-ACK of other PDSCH in the semi-static scheduling downlink data of the downlink control information scheduling in the target time unit determined on the reference cell.

25. The method of physical control channel indication of claim 23, wherein,

The downlink control information comprises third indication information;

26. The method of physical control channel indication of claim 20, wherein,

and sending the first indication information through information carried by a first field in a DCI format used by the downlink control information.

27. The method of physical control channel indication of claim 25, wherein,

and transmitting the second indication information and the third indication information through information carried by a cell index indication field in a DCI format used by the downlink control information.

28. A physical control channel transmission method, comprising the steps of:

determining that the PUCCH is switched between at least two cells;

acquiring an SPS PDSCH, and determining a target time unit of the HARQ-ACK feedback corresponding to the SPS PDSCH in the first cell, wherein the target time unit is determined based on the method of any one of claims 1-12;

29. The physical control channel transmission method of claim 28, further comprising, prior to the step of the target time unit transmitting HARQ-ACKs of the SPS PDSCH using the target PUCCH resources:

30. A physical control channel transmission method, comprising the steps of:

transmitting an SPS PDSCH corresponding to a target time unit for which HARQ-ACK feedback is located in the first cell, the target time unit being determined based on the method of any one of claims 1 to 12;

31. The method of physical control channel transmission of claim 30, wherein,

Transmitting PUCCH configuration information;

32. A terminal device for implementing the method according to any one of claims 1-19, characterized in that,

at least one module in the terminal device is used for at least one of the following functions: receiving the PDSCH of the downlink control information and the downlink data; identifying the first indication information; determining the reference time unit and/or the target time unit; and transmitting the HARQ-ACK information.

33. A terminal device for implementing the method of any of claims 28-29, characterized in that at least one module in the terminal device is adapted to at least one of the following functions: receiving SPS configuration information; determining the target PUCCH resource; determining a target time unit; and transmitting HARQ-ACK of the SPS PDSCH.

34. A network device for implementing the method of any one of claims 1-12, 20-27, characterized in that at least one module in the network device is configured to at least one of the following functions: determining first indication information and sending the downlink control information; determining the reference time unit and/or the target time unit; and receiving the HARQ-ACK information.

35. A network device for implementing the method of any one of claims 30-31, characterized in that at least one module in the network device is configured to perform at least one of the following functions: sending SPS configuration information; determining the target PUCCH resource; determining a target time unit; and receiving the HARQ-ACK of the SPS PDSCH.

36. A communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of claims 1 to 31.

37. A computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 31.

38. A mobile communication system comprising at least 1 terminal device according to claim 32 or 33 and/or at least 1 network device according to claim 34 or 35.