CN114189322A

CN114189322A - Physical control channel indication method and equipment

Info

Publication number: CN114189322A
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: 2022-03-15
Anticipated expiration: 2041-12-31
Also published as: CN114189322B

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 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 response HARQ-ACK of at least one PDSCH in the downlink data; a first cell configured with a first time difference candidate value and a first time unit length; a reference cell configured with a second time difference candidate and a second time unit length; under the condition that CRC in the downlink control information is scrambled by different RNTIs, the first indication information is used for indicating 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 application relates to the field of wireless communication technologies, and in particular, to a method and device for indicating a physical control channel.

Background

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

the method I is to dynamically indicate a PUCCH cell, and a DCI format used by the PDCCH carries a PUCCH cell/BWP indication field to indicate which cell/BWP the HARQ-ACK corresponding to the current scheduling PDSCH feeds back. The "PDSCH-to-HARQ _ feedback timing indicator" field in the DCI format corresponds to one of the time difference alternatives K1 configured for the target cell indicated by the "PUCCH cell/BWP indication", where K1 is granular in terms of the time unit length of the target cell.

The second mode indicates the PUCCH cell semi-statically, and the DCI format used by the PDCCH does not have a PUCCH cell/BWP indication field. The 'PDSCH-to-HARQ _ feedback timing indicator' field in the DCI format corresponds to one of the time difference alternatives K1 configured for the PCell, and K1 is granular based on the time unit length of the PCell.

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

1. there is SPS PDSCH corresponding to PDCCH, specifically the first SPS PDSCH of PDCCH scheduling activating SPS, and its corresponding HARQ-ACK information is called the first SPS HARQ-ACK.

2. And the SPS PDSCH without the corresponding PDCCH, specifically the second SPS PDSCH and the subsequent SPS PDSCH which activate the SPS PDCCH scheduling, and the corresponding HARQ-ACK thereof is called as second and subsequent SPS HARQ-ACK.

3. PDCCH for releasing SPS.

A SPS activation of one time is associated with a first SPS PDSCH with dynamic indications and a second and subsequent SPS PDSCH without dynamic indications, for the first SPS PDSCH, is associated with a dynamic PDCCH. For other SPS PDSCH, there is no associated PDCCH foreseen. Therefore, the prior art cannot solve the problem of how to determine the time unit for feeding back the 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 method for indicating a physical control channel, including the following steps:

the downlink control information is used for scheduling 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 response HARQ-ACK of at least one PDSCH in the downlink data;

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

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

under the condition that the CRC in the downlink control information is scrambled by the second RNTI, the first indication information is an option for indicating a second time difference candidate value, and a product of a value of the option and a second time unit length is used as a 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:

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

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

Preferably, 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 in the semi-persistent scheduling downlink data scheduled by the downlink control information.

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

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

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

In any one embodiment of the first aspect of the present application, preferably, the first length of time and the second length of time 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, or the downlink control information includes third indication information for indicating the time difference between the start time of the target time unit and the start 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 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 are/is carried by the cell index indication field.

In a second aspect, the present application further provides a physical control channel indication method, which is used for a terminal device, and includes the steps of the physical control channel indication method in 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;

determining the target time unit 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 candidate 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 in the first cell is used for feeding back HARQ-ACK of the first PDSCH in the semi-persistent scheduling downlink data scheduled by the downlink control information; and the target time unit determined on the reference cell is used for feeding back HARQ-ACK of other PDSCHs in the semi-static scheduling downlink data scheduled by the downlink control information.

Preferably, the terminal device receives downlink control information and identifies third indication information; and when the target time unit is positioned in a first cell and 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 of the embodiments of the second aspect of the present application, preferably, the terminal device identifies the first indication information through information carried in 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 in 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:

sending downlink control information, wherein the downlink control information comprises the first indication information, and CRC of the downlink control information is scrambled by 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 PUCCH resources configured for the first cell and is used for feeding back HARQ-ACK of the semi-static configured downlink data PDSCH.

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 scrambling the CRC by the second RNTI, receiving HARQ-ACK of the first PDSCH in the semi-persistent scheduling downlink data scheduled by the downlink control information in a target time unit determined on the first cell; and receiving HARQ-ACK of other PDSCHs in the semi-static scheduling downlink data scheduled by the downlink control information in a 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, and the first time length and the second time length are different, the network information determines the 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 in 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 provides a physical control channel transmission method, used in a terminal device, including 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 for feeding back HARQ-ACK of an SPS PDSCH, and the first cell is a secondary cell;

acquiring an SPS PDSCH, and determining a HARQ-ACK feedback corresponding to the SPS PDSCH to be 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 HARQ-ACK of the SPS PDSCH by the target PUCCH resource in the target time unit, the method further includes:

and acquiring PUCCH configuration information, and determining that no PUCCH resource for feeding back HARQ-ACK feedback corresponding to the SPS PDSCH is 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:

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

sending SPS PDSCH, wherein the SPS PDSCH corresponds to HARQ-ACK feedback and is positioned in a target time unit of 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 by using the target PUCCH resource, the method further comprises the following steps:

transmitting PUCCH configuration information;

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

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

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

Further, an embodiment of the present application further provides a network device, configured to implement the 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 perform at least one of the following functions: transmitting SPS configuration information; determining the target PUCCH resource; determining a target time unit; receiving HARQ-ACK of the SPS PDSCH.

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

In a ninth aspect, the present application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out 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 provides a mobile communication system, including at least one network device according to any embodiment of the present application and/or at least one terminal device according to any embodiment of the present application.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

therefore, the problem of how to determine the time unit for feeding back SPS HARQ-ACK under two PUCCH switching modes is solved, and the requirements for solving the problems of unbalanced load between the PCell and the SCell and poor HARQ-ACK feedback delay characteristics are met. Moreover, under the condition that the terminal equipment does not support multiple sets of SPS configuration, the terminal equipment does not need to configure the 'SPS-PUCCH-AN-List' for each PUCCH cell in the 'PUCCH-Config', and 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 embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

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

FIG. 2 is a diagram illustrating time units for determining HARQ-ACK feedback according to the prior art;

fig. 3 is a timing diagram of SPS configuration PDSCH and corresponding HARQ-ACK feedback of 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 indicator PUCCH cell;

fig. 6 is a diagram illustrating a PUCCH cell being dynamically indicated;

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

FIG. 8 shows a determination of the HARQ-ACK transmission time unit of the SPS PDSCH when the PUCCH cell is indicated dynamically;

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

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

FIG. 11 is a flow chart of another embodiment of the method of the present application for use in 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 of another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below 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, and the radio frame comprises 10 subframes. The set of OFDM parameter configurations such as subcarrier spacing size, cyclic prefix size, etc. used by different cells may be different. As described in 4.2 of 3GPP TS 38.211V16.5.0, the OFDM parameter configuration set is preset with a specific index μ, where μ ═ 0 corresponds to a subcarrier spacing of 15KHz, the cyclic prefix is a normal type, μ ═ 1 corresponds to a subcarrier spacing of 30KHz, and the cyclic prefix is a normal type. The number of slots included in 1 subframe varies 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 terminal equipment transmits HARQ-ACK information through a PUCCH, and the specific mode of determining the time unit of HARQ-ACK feedback according to the HARQ-ACK feedback time sequence indication information or the high-level signaling comprises the following steps: the RRC signaling configures one or more HARQ-ACK feedback timing values K1 for indicating the number of time unit offsets of the time unit in which the PUCCH carrying the HARQ-ACK feedback is located relative to the PDSCH or the ending time unit of the PDCCH indicating the SPS PDSCH release. If K1 includes only 1 value, the offset number of the time unit between PDSCH and HARQ-ACK is the configuration value. If K1 includes a plurality of values, the offset number of the time unit between the PDSCH and the HARQ-ACK indicates one from among the plurality of values with "PDSCH-to-HARQ _ feedback timing indication (PDSCH-to-HARQ-ACK feedback timing indication)" information in a DCI format used by the PDCCH, assuming that this indication value is K.

Fig. 2 is a diagram illustrating time units 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 sends PUCCH in an uplink Primary Cell (PCell), and the granularity of the K1 configuration value is the time granularity on the PCell, for example, the slot length of the PCell. Assume OFDM parameter set configuration on uplink PCell as mu_ULThe length of a Slot is Slot_{μ_UL}The OFDM parameter set of the Cell in which the PDSCH is located is configured as mu_DLThe length of a Slot is Slot_{μ_DL}. If PDSCH is located in downlink time slot n_DHARQ-ACK feedback in uplink time slot n_U. The time difference between the PDSCH and the time unit of the corresponding HARQ-ACK is k, which refers to the uplink reference time slot n 'corresponding to the PDSCH'_UAnd time slot n_UThe time difference between is k slots_{μ_UL}. Here, the uplink reference time slot n 'corresponding to the PDSCH'_UIs and downlink time slot n_DThere is a last uplink slot that overlaps in time. If Slot is_{μ_UL}>Slot_{μ_DL}，n′_UIs and downlink time slot n_DUplink time slots that overlap in time. If Slot is_{μ_UL}<Slot_{μ_DL}，n′_UIs and downlink time slot n_DA last one of the plurality of uplink time slots that overlap in time. In FIG. 2(a), (b) are slots_{μ_UL}<Slot_{μ_DL}And Slot_{μ_UL}>Slot_{μ_DL}Schematic representation of (a). If Slot is_{μ_UL}>Slot_{μ_DL}Each value of K1 corresponds to X downlink transmission timeslots; if Slot is_{μ_UL}<Slot_{μ_DL}There is only one corresponding downlink transmission slot for X consecutive values of K1. Wherein the content of the first and second substances,

fig. 3 is a timing diagram illustrating a related art SPS configuration PDSCH and corresponding HARQ-ACK feedback.

For Semi-Persistent Scheduling (SPS), the network device does not need to transmit a PDCCH to the terminal device once every time a PDSCH is scheduled, but periodically allocates resources of the PDSCH to a certain terminal device through one-time PDCCH Scheduling. In brief, the base station specifies a radio resource (referred to herein as SPS resource) used by the terminal device using the PDCCH scrambled with the CS-RNTI, and the terminal device receives data using the SPS resource every one cycle. The base station does not need to issue the PDCCH to specify the allocated resources. For each PDSCH transmission of SPS scheduling, the terminal equipment transmits HARQ-ACK information corresponding to each PDSCH in PUCCH resources corresponding to each PDSCH. And if the terminal equipment receives the PDSCH related to SPS scheduling in the time slot n, the terminal equipment feeds back HARQ-ACK corresponding to the PDSCH in the time slot n + k. The value determination mode of k is the same as the mode of PDCCH dispatching dynamic PDSCH. Fig. 2 illustrates an example where k is 4, where the SPS configuration period is 2ms, and a timing relationship between a PDSCH of the SPS and a PUCCH used for transmitting HARQ-ACK is shown. After acquiring the PDCCH for 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 SPS back in the time slots n +4, n +6 and … … according to a decoding result.

Fig. 4 is a flowchart 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 of 101-104:

step 101, determining the cell configuration and the cell switching function for sending PUCCH.

in this application, when supporting a cell handover function of an uplink physical control channel of a terminal device, a PUCCH may be handed over from a current cell to a target cell. When processing according to the PDSCH scheduling method, the first cell or the reference cell may be selected as the target cell. Preferably, the reference cell is PCELL and the first cell is SCELL. Generally, the current cell may be a PCELL, or any other cell.

102, downlink control information is used for scheduling PDSCH of downlink data, 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 a response HARQ-ACK of at least one PDSCH in the downlink data.

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

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

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

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

In the best embodiment of the application, the time difference indicated by the information (namely the first indication information) carried by the field from PDSCH to HARQ-ACK feedback timing indication is determined according to the scrambling difference between the C-RNTI and the CS-RNTI: and if the cell is the C-RNTI, using the technical scheme of switching the dynamic scheduling PDSCH. In case of CS-RNTI, regardless of which cell the information (i.e., the second indication information) carried in the "PUCCH cell/BWP indication" field indicates, the information indication K carried in the "PDSCH to HARQ-ACK feedback timing indication" field is one value of K1 configured with reference to the cell. Firstly, a reference time unit is determined according to the time unit of the PDSCH, k and the time unit length of the reference cell. Preferably, the reference cell is a PCell.

There are 3 treatment modes:

the method 1,

Transmitting, for a first SPS PDSCH scheduled by a PDCCH activating SPS, SPS HARQ-ACK in one of time units overlapping with a reference time unit in a cell of 'PUCCH cell/BWP indication'; and for the second SPS PDSCH and the subsequent SPS PDSCH which activate the PDCCH scheduling of the SPS, determining the reference time unit as the time unit for transmitting the 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 indicating a time difference between a start time of a target time unit for transmitting SPS HARQ-ACK and a start time of a reference time unit. (corresponding to the semi-static PUCCH cell switching method).

Firstly, a reference time unit is determined according to the time unit of the PDSCH, k and the time unit length of the reference cell. And then determining a target time unit according to the relation between the reference time unit, the semi-statically preset PUCCH transmitting cell and the time position.

If the slot overlapping the reference time unit on the target cell includes two or more slots and the predetermined target time unit is the first time unit overlapping the reference time unit in the target cell, the load of HARQ-ACK feedback may be unbalanced in time. As shown in fig. 5, it is determined that the reference time cell is located in slot C of the PCell. Determining that the PUCCH actually transmitted is located on the SCell according to the relation among the time position of the reference time unit, the semi-statically preset cell for transmitting the PUCCH and the time position, wherein two time slots are formed on the SCell and overlapped with the time slot C: time slot L and time 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 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 indicator 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, PUCCH is transmitted using PCell in the first time interval and PUCCH is transmitted using SCell in the second time interval, … …. There is no "PUCCH cell/BWP indication" field in the DCI format used for the PDCCH that schedules the PDSCH. The terminal equipment firstly determines a reference time unit for sending uplink control information on the PCell, and then determines the PUCCH which is actually sent according to the relation among the reference time unit, the semi-static preset PUCCH sending cell and the time position.

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

Fig. 6 is a diagram illustrating a PUCCH cell being dynamically indicated.

And the terminal equipment switches between the PCell and the SCell to transmit the PUCCH. For example, K1 of PCell configuration is {3,4,5,6}, K1 of SCell configuration is {1,2,3,4,5,6,7,8}, and the slot length on PCell is 2 times that of SCell. As shown in fig. 3, for PDSCH transmission of slot a of downlink PCell, the PUCCH used for transmission of its HARQ-ACK information may be located in slot B, C, D, E of PCell and slot F, G, H, I, J, K, L, M on SCell. If the "PUCCH cell/BWP indication" information corresponds to PCell, and "PDSCH-to-HARQ _ feedback timing indicator" indication k is 3, the PUCCH is located in slot B of PCell. Alternatively, if the "PUCCH cell/BWP indication" (i.e., the 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 of the present application for a terminal device.

The present application further provides 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 specifically relates to the following steps 201 to 205:

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

Whether PUCCH cell switching is supported or not, and different PUCCH cell switching modes have different requirements on the processing capacity of the terminal equipment. 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 the configuration information of the PUCCH cell switching mode, the terminal device is not supported to switch the PUCCH cell, and the default PUCCH cell is a main 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, wherein the PDCCH is used for scheduling a PDSCH, and a target time unit is determined according to an indication of the PDCCH, and the target time unit is located in a first cell and used for feeding back HARQ-ACK corresponding to the PDSCH;

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

The PDCCH scrambled by the C-RNTI and the PDCCH scrambled by the CS-RNTI have the same DCI format length, and for various PUCCH cell switching modes, a target time unit can be determined to meet the requirements of flexible switching and load balance of PUCCH transmitting cells by setting different interpretation modes of DCI format specific fields in the PDCCH scrambled by the C-RNTI and the PDCCH scrambled by the CS-RNTI and presetting switching rules of PUCCH cells. 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 candidate and a first time unit length.

For PDSCH scheduled by PDCCH scrambled by CS-RNTI, 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 first value is used to determine the target time unit, the first value is not related to the first time difference candidate value and the first time unit length configured for the first cell, but is related to the second time difference candidate value and the second time unit length configured for the reference cell.

Step 203, the terminal device responds to the second RNTI to descramble the CRC, determines an option in the second time difference candidate 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 scrambling the CRC of the DCI format with a second RNTI, selecting one of the second time difference candidates with the first value, the product of which and a second time unit length is a time difference between the PDSCH and a reference time unit, the target time unit being a time unit in a 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, and the indication field of the target PUCCH cell index corresponds to the first cell, when the PDCCH is scrambled by the C-RNTI, a target time unit of the first cell is determined 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. And 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. RNTI scrambled by CRC in a DCI format used by PDCCH for dynamically scheduling PDSCH is called as first RNTI, C-RNTI is a form of the first RNTI, and the first RNTI can also be MCS-RNTI and the like. The RNTI scrambled with the CRC in the DCI format used by the PDCCH for 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 device responds to the second RNTI to descramble the CRC, and a target time unit determined on the first cell is used for feeding back the HARQ-ACK of the first PDSCH in the semi-persistent scheduling downlink data scheduled by the downlink control information; and the target time unit determined on the reference cell is used for feeding back HARQ-ACK of other PDSCHs in the semi-static scheduling downlink data scheduled by the downlink control information.

Step 204, the terminal device responds to the first RNTI to descramble the CRC, determines an option in the first time difference candidate value according to the first indication information, and further determines the target time unit on the first cell.

When scrambling the DCI format CRC with a first RNTI, selecting one of the first time difference alternative values by using the first value, wherein the product of the first time unit length and the selected value 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, the first field indicates a value of one of the time difference alternatives K1 configured for the first cell, and a transmission 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 DCI scrambled by the first RNTI only schedules one-time PDSCH transmission, the method can flexibly determine the cell for transmitting the PUCCH, and meet the requirements of flexible switching of the PUCCH transmitting cell and load balance.

The PDCCH is associated with a plurality of SPS PDSCHs if DCI scheduled for the PDSCH is scrambled with CS-RNTI, which is used to activate SPS transmission. The method comprises a first SPS PDSCH scheduled by a PDCCH for activating SPS, a second SPS PDSCH and a subsequent SPS PDSCH which are transmitted according to the periodicity configured by SPS after the SPS is activated. And if the DCI is scrambled by the first RNTI according to the indication mode, no matter which target cell the PUCCH cell/BWP indication field corresponds to, the time difference value between the PDSCH and the HARQ-ACK indicated by the first field is one of time difference alternatives K1 configured by the reference cell, and the time unit for sending the HARQ-ACK is determined on the reference cell by the time unit length of the reference cell and the value as the reference time unit. Then, a target time unit is determined in the first cell based on the time location of the reference time unit.

FIG. 8 shows a method for determining the HARQ-ACK transmission time unit of the SPS PDSCH when the PUCCH cell is dynamically indicated. As shown in fig. 8, PDCCH information is scrambled with the second RNTI, and the DCI format includes an indication field of a target PUCCH cell index, which indicates the SCell. The first field indicates that K is 3, which corresponds to K1 {3,4,5,6} configured for PCell and the slot length of PCell. And determining the HARQ-ACK feedback reference time units of the first SPS PDSCH, the second SPS PDSCH and the third SPS PDSCH according to the k-3 and the time slot length of the PCell, wherein the reference time units are the time slot B, the time slot D and the time slot F of the PCell respectively. And for the first SPS PDSCH, determining that the first time slot overlapped with the time slot B on the target cell SCell is a target time unit, namely the time slot K of the SCell, according to the indication of the PDCCH. For the second SPS PDSCH and the subsequent HARQ-ACK for the 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 to determine the time position of the target time unit. The first value of the first field corresponds to a second time difference candidate value for the configuration of the reference cell and a second time unit length. The first cell is the cell where the target time unit is located. The first cell and the reference cell are not limited to be different here. In some cases, the reference cell is the first cell.

And step 205, sending the 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 by the C-RNTI. And when the PDCCH is scrambled by the CS-RNTI, the default HARQ-ACK feedback is positioned in the main cell. In this way, the indication field of the target PUCCH cell index in the DCI format may be a reserved field in the case of CS-RNTI scrambling, and the information it carries is not to be interpreted.

Further alternatively, the target time unit may be determined by using a combination of a dynamic switching PUCCH cell and a semi-static switching PUCCH cell. When the PDCCH is scrambled by the CS-RNTI, the target reference time unit fed back by the HARQ-ACK is positioned in the main cell, and then the target time unit is determined by 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 a reserved field under the condition of CS-RNTI scrambling, and the information carried by the reserved field is not interpreted and is in a reserved state. Alternatively, the indication field of the target PUCCH cell index in the DCI format may be used to indicate which one of slots overlapping with the reference time unit time on the target cell is the target time unit in case of CS-RNTI scrambling. As shown in fig. 4, it is determined that the reference time cell is located in slot C of the PCell. Determining that the PUCCH actually transmitted is located on the SCell according to the relation among the reference time unit, the semi-statically preset cell for transmitting the PUCCH and the time position, wherein two time slots are formed on the SCell and overlapped with the time slot C: time slot L and time slot M. Which of slot L and slot M the target time unit is may be indicated by an indication field of a 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 }, which corresponds 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 with the reference time unit in the first cell the target time unit is. Further, the time difference between the reference time unit and the target time unit starting position may be expressed in absolute time rather than in the number of time units, e.g., preset to {0, 0.25ms }, so that the target time unit may be indicated by 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 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:

step 301, sending configuration information, configured to indicate that a terminal device supports switching between at least two cells to send a PUCCH;

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

Step 303, the network device sends a PDCCH for scheduling the PDSCH, where the PDCCH is used to determine a target time unit, the target time unit is located in a 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 candidate value and a first time unit length, and the reference cell is configured with a second time difference candidate value and a second time unit length;

sending 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.

And step 304, processing when CRC of the downlink control information is scrambled by the second RNTI.

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

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

responding to the second RNTI to scramble the CRC, and when the second RNTI is a CS-RNTI, executing the steps 304A-B:

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

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

And 305, processing when CRC of the downlink control information is scrambled by the first RNTI.

In the embodiments of steps 101 to 304, in order to further improve efficiency, considering the problem that the SCell configuration information in the prior art is incomplete, the prior art supports PUCCH transmission in PCell, and with reference to 3GPP TS38.331 vg.6.0, the SPS configuration information "SPS-Config" includes PUCCH resource configuration information "n 1 PUCCH-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 dynamically scheduled PDSCH, PUCCH resources for scheduling request, PUCCH resources for channel state information feedback, and PUCCH resources for HARQ-ACK of the plurality of sets of SPS PDSCH. The 'SPS-PUCCH-AN-List' in the 'PUCCH-Config' is AN optional item and is used for configuring PUCCH resource sets corresponding to SPS HARQ-ACK feedback under multiple sets of SPS configurations, and the feedback comprises SPS PDSCH HARQ-ACK feedback for at least two different number intervals. For example, a first PUCCH for HARQ-ACK of 1 ~ 2 bit SPS PDSCH and a second PUCCH for HARQ-ACK of 3 ~ 24 bit SPS PDSCH. Under the condition that a plurality of sets of PUCCH resources of the HARQ-ACK of the SPS PDSCH are not configured in the PUCCH-Config, if the PUCCH only comprises the HARQ-ACK of the SPS PDSCH with 1-2 bits, the HARQ-ACK of the SPS PDSCH is transmitted by using the PUCCH resources configured by the n1PUCCH-AN in the SPS-Config. And under the condition that a PUCCH resource set of the SPS-PUCCH-AN-List is configured in the PUCCH-Config, transmitting the HARQ-ACK of the SPS PDSCH by using a first PUCCH resource in the PUCCH resource set. However, the prior art "SPS-Config" configuration includes only PUCCH resources for SPS HARQ-ACK in PCell, which 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, in the prior art, separate configurations "PUCCH-Config" are configured in each cell supporting PUCCH transmission. In order to meet the requirement that terminal equipment sends PUCCH carrying 1-2 bit SPS HARQ-ACK in a secondary cell, gNB has to configure 'SPS-PUCCH-AN-List' for each PUCCH cell in 'PUCCH-Config', and particularly under the working condition of multiple sets of SPS configuration, SPS PDSCH HARQ-ACK feedbacks of at least two different number intervals are needed, so that the resource configuration efficiency is low.

In the application, the PUCCH resources used for SPS HARQ-ACK on the SCell are configured by SPS configuration information 'SPS-Config'. Under the condition that the terminal equipment does not support multiple sets of SPS configuration, the terminal equipment does not need to configure 'SPS-PUCCH-AN-List' for each PUCCH cell in the 'PUCCH-Config', and if the terminal equipment sends 1-2 bits of PUCCH of SPS HARQ-ACK on the SCell, the PUCCH resource of the SPS HARQ-ACK configured for the SCell in the 'SPS-Config' configuration is used. Thereby improving resource allocation efficiency

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

It should be noted that, in the present application, an intra-cell time unit is taken as an example of a time slot, and in practical applications, the time slot may be replaced by a time unit such as a sub-time slot, and corresponding implementation manners and methods thereof are the same as those described in the embodiments of the present application.

It should be noted that the primary cell in the present application 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 a PUCCH, or replaced by a primary cell on a secondary node in dual connectivity application, and implementation manners and methods corresponding to the primary cells are the same as those in the embodiments of the present application.

Therefore, the present application further provides 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 PUCCH is switched in 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, to feed back HARQ-ACK of an 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, in step 804, PUCCH configuration information is obtained, and it is determined that a PUCCH resource for feeding back HARQ-ACK feedback corresponding to the SPS PDSCH is not 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 the secondary cell, the terminal device may use the PUCCH resource configured for the first cell in the SPS configuration information and used for feeding back the HARQ-ACK of the SPS PDSCH. Under the condition that the terminal equipment does not support multiple sets of SPS configuration, the SPS configuration information comprises HARQ-ACK which is configured for the auxiliary cell and used for feeding back the SPS PDSCH, the requirement that the terminal equipment sends PUCCH carrying 1-2 bit SPS HARQ-ACK in the auxiliary cell can be met, the 'SPS-PUCCH-AN-List' does not need to be configured for each PUCCH cell in the 'PUCCH-Config', and the resource configuration efficiency is improved.

And step 805, transmitting the HARQ-ACK of the SPS PDSCH by using the target PUCCH resource in the target time unit.

When the terminal device supports PUCCH cell switching, cells supporting PUCCH transmission are configured with separate "PUCCH-Config". However, if the "PUCCH-AN-List" is not configured in the "PUCCH-Config" of the PUCCH cell corresponding to the "PUCCH cell/BWP indication" field in the PDCCH. Then the HARQ-ACK for each SPS PDSCH is sent in that cell, requiring the PUCCH resources on that cell for HARQ-ACK transmission for the SPS PDSCH to be included in the "SPS-Config" information. That is, PUCCH resources for HARQ-ACK for 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 the period of SPS configuration, the number of HARQ processes, HARQ process number offset, the number of repeated transmissions, and the like.

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

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

step 902, sending an SPS PDSCH, wherein the SPS PDSCH corresponds to a HARQ-ACK feedback and is located in a target time unit of the first cell;

step 903, sending PUCCH configuration information; and PUCCH resources used for feeding back HARQ-ACK feedback corresponding to the SPS PDSCH are not configured for the first cell in the PUCCH configuration information.

Step 904, receiving 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.

An embodiment of the present application further provides a network device, where, using the method according to any one of the embodiments of the present application, the network device is configured to: determining first indication information, second indication information and third indication information; sending the downlink control information; determining the reference time unit and/or a target time unit; and receiving the HARQ-ACK information.

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

In order to implement the foregoing 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.

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

The network determining module is configured to determine the first indication information, the second indication information, and the third indication information, determine that the target cell is the first cell or the reference cell, and determine the target time unit.

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

The specific method for implementing the functions of the network sending module, the network determining module and the network receiving module is described in steps 101 to 104, 301 to 305 and 901 to 904 of the method embodiments of the present application, and is not described herein again.

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

The present application further provides a terminal device, which uses the method of any one of the embodiments of the present application, and is 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 a target time unit; transmitting the HARQ-ACK information

In an 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 the HARQ-ACK of the SPS PDSCH.

In order to implement the foregoing 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.

And the terminal receiving module is used for receiving the configuration information, the downlink control information and the PDSCH.

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

And the terminal sending module is used for receiving the physical uplink control channel and comprises HARQ-ACK.

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

The terminal equipment can refer to mobile terminal equipment and other User Equipment (UE) connected with network equipment through a 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. including a transmitter and a receiver, providing means for communicating with various other apparatus over a transmission medium. The wireless interface implements a communication function with the terminal device, and processes wireless signals through the receiving and transmitting devices, 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 that executes any of the embodiments of the present application, running or changed 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 herein.

Fig. 15 is a block diagram of a terminal device of 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 the terminal device 700 are coupled together by a bus system. A bus system is used to enable connection 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, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen, among others.

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

In the embodiment of the present invention, the memory 702 contains a computer program for executing any of the embodiments of the present application, and the computer program runs or changes 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 combines the hardware to complete the steps of the above-described method. In particular, the computer-readable storage medium has stored thereon a computer program which, when being executed by the processor 701, carries out the steps of the method embodiments as described above with reference to any of the embodiments.

The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be implemented by hardware integrated logic circuits in the processor 701 or by instructions in the form of software. 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, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed 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 directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.

As will be appreciated by one skilled in the art, 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 a typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and a 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.

The present application therefore also proposes a computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application. For example, the

memory

603, 702 of the present invention may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (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 computer storage media 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 that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

Based on the embodiments in fig. 12 to 15, the present application further provides a mobile communication system including at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in 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 an … …" 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 for distinguishing a plurality of objects having the same name, and do not mean in order or size.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A physical control channel indication method, comprising the steps of:

2. The physical control channel indication method of claim 1, comprising the steps of:

3. The physical control channel indication method of claim 1, comprising the steps of:

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

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

and 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 in the semi-persistent scheduling downlink data scheduled by the downlink control information.

5. The physical control channel indication method of claim 4, further comprising the step of:

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

6. The physical control channel indication method of claim 2, wherein:

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

7. The physical control channel indication method of claim 1 or 2,

the first length of time and the second length of time 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 physical control channel indication method of claim 1 or 2,

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

9. The physical control channel indication method of claim 8,

the first cell is pre-set.

10. The physical control channel indication method of claim 8,

the first cell is the reference cell.

11. Physical control channel indication method according to claim 1,2,

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

12. Physical control channel indication method according to claim 3, 8,

the DCI format used by the downlink control information includes 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 indication method for a terminal device, comprising the steps of the physical control channel indication method according to any one of claims 1 to 12,

descrambling the CRC in response to the second RNTI,

determining the target time unit on the first cell.

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

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 physical control channel indication method of claim 13,

receiving the downlink control information and identifying second indication information;

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

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

descrambling the CRC in response to the second RNTI,

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

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

17. The physical control channel indication method of claim 13,

receiving downlink control information and identifying third indication information;

and when the target time unit is positioned in a first cell and 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 physical control channel indication method of claim 13,

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 physical control channel indication method of claim 13,

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

20. A physical control channel indication method, for a network device, comprising the steps of the physical control channel indication 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 indication method of claim 20, further comprising the steps of:

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

22. The physical control channel indication method of 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 physical control channel indication method of claim 20,

the downlink control information also comprises second indication information;

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

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

scrambling the CRC in response to the second RNTI,

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

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

25. The physical control channel indication method of claim 20,

the downlink control information comprises third indication information;

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

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 physical control channel indication method of claim 20,

and sending 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 is characterized by comprising the following steps

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

29. The physical control channel transmission method as claimed in claim 28, wherein before the step of transmitting HARQ-ACK of the SPS PDSCH by the target PUCCH resource in the target time unit, further comprising:

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

31. The physical control channel transmission method as claimed in claim 30,

transmitting PUCCH configuration information;

32. A terminal device for implementing the method of any one of claims 1 to 19,

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

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

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

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

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

37. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one 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.