CN110661598A - Semi-persistent scheduling hybrid automatic repeat request response method and equipment - Google Patents

Semi-persistent scheduling hybrid automatic repeat request response method and equipment Download PDF

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CN110661598A
CN110661598A CN201911083219.1A CN201911083219A CN110661598A CN 110661598 A CN110661598 A CN 110661598A CN 201911083219 A CN201911083219 A CN 201911083219A CN 110661598 A CN110661598 A CN 110661598A
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semi
control channel
physical downlink
downlink control
time unit
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CN110661598B (en
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闫志宇
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China Academy of Information and Communications Technology CAICT
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China Academy of Information and Communications Technology CAICT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The application discloses a semi-static scheduling hybrid automatic repeat request response method, for the semi-static scheduling configuration, high-level signaling configuration alternative sets are provided, each alternative set comprises alternative values, and one of the alternative values is used as a response time indication and is used for representing the relative time position between a first time unit and a second time unit; the first time unit is a time unit in which a last symbol of a control resource set corresponding to a physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel, or the first time unit is a time unit in which the last symbol mapped by the physical downlink control channel is located; the second time unit is a time unit for transmitting HARQ-ACK information in response to the physical downlink control channel. The application also comprises a terminal device and a network device which use the method. The application solves the problem of releasing multiple semi-static configuration responses.

Description

Semi-persistent scheduling hybrid automatic repeat request response method and equipment
Technical Field
The present application relates to the field of mobile communications, and in particular, to a method and an apparatus for releasing multiple semi-static configurations for hybrid automatic repeat request response.
Background
Semi-Persistent Scheduling (SPS), unlike dynamic Scheduling, in which a network device transmits physical downlink control information to a terminal device (UE) once every time the network device schedules a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH), allows resources of the physical downlink shared channel or the physical uplink shared channel to be periodically allocated to a specific terminal device through one-time physical downlink control channel Scheduling. A network device (e.g., a base station) specifies a radio resource (referred to herein as a semi-persistent scheduling resource) used by a terminal device through a Physical Downlink Control Channel (PDCCH), and the semi-persistent resource is used by the terminal device to transmit or receive data every one cycle. The network device does not need to issue a physical downlink control channel to specify the allocated resources. Due to the characteristic of 'one-time allocation and multiple-time use' of semi-static scheduling, the physical downlink control channel overhead is reduced. In the current system, at most one semi-static scheduling is configured for the terminal equipment in one cell group, and parameters included in one semi-static configuration include period, number of HARQ processes, Physical Uplink Control Channel (PUCCH) resources and used MCS tables.
The semi-static configuration information is configured to the terminal device by the network device through RRC signaling. The minimum value of the period of the semi-static configuration is 10 ms. After the terminal device receives the configuration information, the corresponding resource cannot be used immediately. Only after the network device activates the semi-static configuration through the physical downlink control channel, the terminal device receives or transmits data in the corresponding resource according to the semi-static configuration period. And if the terminal equipment receives an instruction of releasing the semi-static configuration by the network equipment through the physical downlink control channel, the terminal equipment stops receiving or sending data in the resources corresponding to the semi-static configuration.
For the traffic of a Time Sensitive Network (TSN), there are data streams with multiple periods and urgency priorities, and the traffic supports an irregular burst emergency traffic and also supports a conventional eMBB traffic. Traffic of a TSN network may not be an integer multiple of symbols, slots, or subframes. The NR system will support configuring a plurality of semi-static configuration parameters for the terminal device to meet the traffic demand of the TSN.
The multiple semi-static configurations may be different configurations of the higher layer signaling "dl-datatolul-ACK" for different services of the TSN network, for a service of the URLLC, in order to satisfy a low latency characteristic of the service, the higher layer signaling indicates a smaller value of the time interval for the corresponding semi-static configuration, and for an eMBB service, the higher layer signaling indicates a larger value of the time interval for the corresponding semi-static configuration, that is, for different service types, the configuration of the higher layer signaling "dl-datatoll-ACK" is different.
When the network device releases the semi-static configuration through the physical downlink control channel, if the physical uplink control channel corresponding to the release information is a sub-slot level resource, how the terminal device determines? the time resource of the physical uplink control channel, especially if the physical downlink control channel releases two or more semi-static configurations, but the configurations of the "dl-DataToUL-ACK" corresponding to the two or more semi-static configurations are different, how the terminal device determines? the feedback time for releasing the HARQ-ACK corresponding to the semi-static configured physical downlink control channel does not currently have the prior art, which results in that the release information of the semi-static configuration cannot be effectively responded, and the invalid receiving processing of the terminal device and the reduction of the system efficiency are caused.
Disclosure of Invention
The embodiment of the application provides a semi-static scheduling hybrid automatic repeat request response method and equipment, which solve the problem of releasing a plurality of semi-static configuration responses.
The embodiment of the application provides a semi-persistent scheduling hybrid automatic repeat request response method, which comprises the following steps:
the physical downlink control channel comprises an indication for releasing at least one semi-static scheduling configuration;
configuring at least one alternative set for the at least one semi-static scheduling configuration and high-level signaling, wherein each alternative set comprises at least one alternative value, and one of all the alternative values is used as a response time indication to represent a relative time position between a first time unit and a second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel;
or, the other options of the first time unit further include that the first time unit is a time unit in which a last symbol mapped by the physical downlink control channel is located;
the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel;
the time unit is a time slot or a sub-time slot.
In an optional embodiment of the present invention, preferably, in the semi-persistent scheduling hybrid automatic repeat request acknowledgement method of the present invention, the physical downlink control channel includes an indication to release N semi-persistent scheduling configurations, where N ≧ 2; in a high-level signaling, each 1 alternative set is specially used for 1 semi-static scheduling configuration; determining one of N candidate sets for the N semi-persistent scheduling configurations as a target candidate set; and taking 1 alternative value in the target alternative set as the response time indication.
In an alternative embodiment of the present invention, preferably, the physical downlink control channel includes an indication to release N semi-persistent scheduling configurations, where N ≧ 2; the high-level signaling comprises 1 alternative set which is specially used for releasing the N semi-static scheduling configurations and is used as a target alternative set, and 1 alternative value in the target alternative set is used as the response time indication.
In an alternative embodiment of the present invention, preferably, the physical downlink control channel includes an indication to release N semi-persistent scheduling configurations, where N ≧ 2; the N semi-static scheduling configurations respectively correspond to one of the M alternative sets, M is more than or equal to 2, and one of the alternative sets corresponding to the N semi-static scheduling configurations respectively is determined as a target alternative set; and taking 1 alternative value in the target alternative set as the response time indication.
Further preferably, the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, where K is preset.
Or, the target candidate set is a candidate set of the kth semi-persistent scheduling configuration, and the physical downlink control channel includes an indication of a K value.
Or the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the candidate set of the kth semi-persistent scheduling configuration includes a minimum candidate value in the candidate sets of the N semi-persistent scheduling configurations.
Or the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the candidate set of the kth semi-persistent scheduling configuration includes a maximum candidate value in the candidate sets of the N semi-persistent scheduling configurations.
Or, the target candidate set is a candidate set corresponding to the Kth semi-static scheduling configuration; the index number of the Kth semi-static scheduling configuration is the minimum or the maximum of the index numbers of the N semi-static scheduling configurations.
Or, the target candidate set is a candidate set corresponding to the Kth semi-static scheduling configuration; the Kth semi-persistent scheduling configuration is activated earliest or latest in the N semi-persistent scheduling configurations before the PDCCH.
In any embodiment of the method of the present application, when the target candidate set includes at least two candidate values, the physical downlink control channel includes a candidate value index, which is used to determine a unique response time indication from the target candidate set.
Any one embodiment of the method of the application is applied to the terminal equipment, and the method comprises the following steps:
receiving a physical downlink control channel, wherein the physical downlink control channel comprises an indication for releasing at least one semi-persistent scheduling configuration; configuring at least one alternative set for the at least one semi-static scheduling configuration and high-level signaling, wherein each alternative set comprises at least one alternative value;
determining one of the alternative values as an indication of response time indicative of a relative time position between the first time unit and the second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel; the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel; the time unit is a time slot or a sub-time slot;
and transmitting the HARQ-ACK information in the second time unit.
Any one embodiment of the method of the present application is applied to a network device, and comprises the following steps:
sending a physical downlink control channel, wherein the physical downlink control channel comprises an indication for releasing at least one semi-persistent scheduling configuration; configuring at least one alternative set for the at least one semi-static scheduling configuration and high-level signaling, each alternative set comprising at least one alternative value,
determining one of the alternative values as an indication of response time indicative of a relative time position between the first time unit and the second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel, or the first time unit is a time unit in which the last symbol mapped by the physical downlink control channel is located; the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel; the time unit is a time slot or a sub-time slot;
receiving the HARQ-ACK information in the second time unit.
The embodiment of the present application further provides a terminal device, which is used in the method according to any one of the embodiments of the present application, and the method includes:
a downlink receiving module, configured to receive the physical downlink control channel;
a downlink determining module, configured to determine the response time indication, and further determine a first time unit and a second time unit;
and an uplink transmission module, configured to send an automatic repeat request response of the physical downlink control channel in the second time unit.
An embodiment of the present application further provides a network device, which is used in the method according to any embodiment of the present application, and includes:
a downlink sending module, configured to send the physical downlink control channel;
an uplink determining module, configured to determine the response time indication, and further determine a first time unit and a second time unit;
and an uplink receiving module, configured to receive, in the second time unit, a hybrid automatic repeat request response of the physical downlink control channel.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the problem of how the terminal device determines the time resource of the physical uplink control channel when the network device releases the semi-static configuration through the physical downlink control channel and if the physical uplink control channel corresponding to the release information is the sub-slot level resource is solved, especially if the physical downlink control channel releases two or more semi-static configurations, and the configuration information of the dl-DataToUL-ACK corresponding to the two or more semi-static configurations is different, the terminal device can determine the feedback time of the HARQ-ACK corresponding to the physical downlink control channel releasing the semi-static configuration according to the scheme. The situations that the terminal equipment cannot effectively respond to the release information of the semi-static configuration, the terminal equipment cannot receive and process the information and the system efficiency is reduced are avoided.
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 flow chart of an embodiment of a method pair of the present invention;
FIG. 2 is a flow chart of an embodiment of the method of the present invention for a terminal device;
FIG. 3 is a schematic diagram of determining a second time unit based on a first time unit and an indication of a response time;
FIG. 4 is a schematic diagram of selecting a response time indication determination second time unit in a plurality of alternative sets;
FIG. 5 is a flow chart of an embodiment of the method of the present invention for a network device;
fig. 6 is a block diagram of an embodiment of a network device and a terminal device 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.
If the network device sends the physical downlink control channel releasing the semi-static configuration, the semi-static configuration resource is considered to be released, and downlink data cannot be continuously sent to the terminal device at the corresponding position. However, if the information of the physical downlink control channel releasing the semi-static configuration is not correctly received by the terminal device, the terminal device still determines the semi-static configuration resource according to the period of the downlink semi-static configuration, and receives data in the corresponding semi-static configuration resource. This causes unnecessary reception processing by the terminal device and combines the reception result with the reception by other identical data processes, resulting in a decrease in reliability of data reception or a reception failure in the semi-static configuration. In addition, after the invalid "semi-static configuration resources" are failed to receive and demodulate, the terminal device also feeds back the physical uplink control channel resources corresponding to the occupied and invalid "semi-static resources" to the NACK information configured in a semi-static manner. However, it is possible that the network device configures the physical uplink control channel resource corresponding to the invalid "semi-static resource" to other terminal devices, thereby causing interference between uplink channels and seriously affecting system efficiency. Therefore, the network device releases the semi-static configuration through the physical downlink control channel, and after the terminal device receives and correctly demodulates the physical downlink control channel releasing the semi-static configuration, the terminal device sends correctly demodulated response information for the physical downlink control channel. The network device can confirm that the corresponding semi-static configuration is no longer valid at the terminal device end only when receiving the acknowledgement information ACK for releasing the semi-static configuration, so as to avoid invalid receiving processing of the terminal device and system efficiency reduction.
It should be noted that, in the present specification, "first" and "second" are used to distinguish modified terms, and are not to be interpreted as meaning as large or small in magnitude. E.g. a first time unit, a first level.
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 flow chart of an embodiment of a method pair of the present invention.
The embodiment of the application provides a semi-persistent scheduling hybrid automatic repeat request response method, which comprises the following steps:
step 101, configuring at least one semi-static scheduling configuration and at least one alternative set for a high-level signaling, wherein each alternative set comprises at least one alternative value;
for example, for N semi-persistent scheduling configurations, N is greater than or equal to 2, and in a high-level signaling, each 1 of the alternative sets is dedicated to 1 of the semi-persistent scheduling configurations; alternatively, the higher layer signaling contains 1 alternative set dedicated to releasing the N semi-persistent scheduling configurations.
For example, the value configured by the higher layer signaling "dl-DataToUL-ACK" constitutes the alternative set.
For another example, the network device configures M candidate sets for the terminal device, where M ≧ 2. And when the network equipment configures the semi-static scheduling configuration for the terminal equipment, indicating which of the M alternative sets corresponds to each network equipment.
For another example, the network device configures M HARQ-ACK codebook levels to the terminal device, where each HARQ-ACK codebook level has a corresponding candidate set. And when the network equipment sends a semi-static scheduling configuration to the terminal equipment, sending which HARQ-ACK codebook grade the semi-static scheduling configuration corresponds to at the same time. Thus, the semi-static scheduling configuration corresponds to the candidate set of HARQ-ACK codebook classes.
102, the physical downlink control channel includes an indication for releasing the at least one semi-persistent scheduling configuration;
the network equipment releases the semi-static configuration through the physical downlink control channel. For example, the physical downlink control channel for releasing the semi-static configuration sent by the network device has various formats: DCI format1_ 0 and DCI format1_1, and DCI format for scheduling high-reliability low-latency traffic. HARQ-ACK corresponding to a physical downlink control channel which is transmitted in a time slot (or a sub-time slot) n and releases semi-static configuration is fed back in the time slot (or the sub-time slot) n + k, and the value of k is determined by 'PDSCH-to-HARQ-timing-indicator' or 'dl-DataToUL-ACK' of high-layer signaling in DCI.
For example, for the case of the release semi-static configuration transmitted with DCI format1_ 0, the DCI field includes "PDSCH-to-HARQ-timing-indicator" for indicating the value of k, which corresponds to 1 of {1,2,3,4,5,6,7,8 }.
Step 103, taking one of all the alternative values as a response time indication to represent the relative time position between the first time unit and the second time unit;
in step 103, first, one of the N candidate sets for the N semi-persistent scheduling configurations is determined as a target candidate set, or the 1 candidate set dedicated to releasing the N semi-persistent scheduling configurations is determined as a target candidate set. And taking 1 alternative value in the target alternative set as the response time indication.
The first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel, or the first time unit is a time unit in which the last symbol mapped by the physical downlink control channel is located;
in this document, the meaning of the mapping may refer to section 7.3.2.5 of 3GPP TS 38.211V15.7.0, which is a process for determining on which physical resources the coded and modulated physical downlink control channel is transmitted. That is, the physical resources occupied by the physical downlink control channel are preset through mapping, and the physical resources include time domain resources.
The second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel;
the time unit is a time slot or a sub-time slot.
In any embodiment of the method of the present application, if the target alternative set contains only 1 alternative value, that alternative value may be used as the only response time indication.
For example, if the alternative set configured by the higher layer signaling "dl-DataToUL-ACK" includes only one value, the "PDSCH-to-HARQ-timing-indicator" field is not included in the DCI format1_1, and the value of k is the value configured by "dl-DataToUL-ACK".
In any embodiment of the method of the present application, if the target candidate set includes at least two candidate values, an index of the candidate values is included in the physical downlink control channel, and is used to determine a unique response time indication from the target candidate set.
For example, in the semi-static configuration of release transmitted by the DCI format1_1, if the higher layer signaling "dl-DataToUL-ACK" configures multiple values, a "PDSCH-to-HARQ-timing-indicator" field is included in the DCI format1_1, and indicates that the value of k is one of the multiple values of the candidate set configured by "dl-DataToUL-ACK".
Optionally, the HARQ-ACK codebook is divided into M levels, and the M levels correspond to the M candidate sets one to one. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. The HARQ-ACK codebook grades corresponding to the N semi-persistent scheduling configurations released by the above-mentioned physical downlink control channel may be the same, may be partially the same, and may be partially different, or may be all different. And indicating that the HARQ-ACK response information (corresponding to the physical downlink control channel) in the physical downlink control channel is in a first level. The first level is one of M HARQ-ACK codebook levels. And using the alternative set corresponding to the first grade as a target alternative set. The HARQ-ACK codebook level indicating the HARQ-ACK response information of the physical downlink control channel in the physical downlink control channel may be any one of the following information: the format of the physical downlink control channel, the RNTI information for the scrambling code CRC in the physical downlink control channel, the reference field in the physical downlink control channel, and the control resource set or the search space corresponding to the physical downlink control channel.
Or, the HARQ-ACK codebook is divided into M levels, and the M levels are in one-to-one correspondence with the M candidate sets. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. And only when the HARQ-ACK codebook grades corresponding to the N semi-static scheduling configurations are the same, releasing the N semi-static scheduling configurations by using one physical downlink control channel. Assuming that the HARQ-ACK codebook grades included in the N semi-persistent scheduling configurations are all a first grade, and the candidate set corresponding to the first grade is used as a target candidate set.
For another example, 1 candidate is selected from the N candidate sets as a target candidate set, for example, the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, where K is preset.
For another example, the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the physical downlink control channel includes an indication of a K value.
Or the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the candidate set of the kth semi-persistent scheduling configuration includes a minimum candidate value in the candidate sets of the N semi-persistent scheduling configurations.
Or the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the candidate set of the kth semi-persistent scheduling configuration includes a maximum candidate value in the candidate sets of the N semi-persistent scheduling configurations.
Or, the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and an index number of the kth semi-persistent scheduling configuration is the smallest of index numbers of the N semi-persistent scheduling configurations.
Or, the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the index number of the kth semi-persistent scheduling configuration is the largest of the index numbers of the N semi-persistent scheduling configurations.
Or, the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the kth semi-persistent scheduling configuration is activated earliest in the N semi-persistent scheduling configurations.
Or, the target candidate set is a candidate set of a kth semi-persistent scheduling configuration, and the kth semi-persistent scheduling configuration is activated latest in the N semi-persistent scheduling configurations. Fig. 2 is a flowchart of an embodiment of the method of the present invention applied to a terminal device.
Any one embodiment of the method of the application is applied to the terminal equipment, and the method comprises the following steps:
step 201, configuring at least one alternative set for the at least one semi-static scheduling configuration and the high-level signaling, wherein each alternative set comprises at least one alternative value;
for example, the semi-static configuration is N. For each semi-static configuration, the network device configures the semi-static resource to the terminal device through RRC signaling, for example, the alternative set is formed by a value configured by higher layer signaling "dl-DataToUL-ACK".
For another example, the terminal device obtains information configuring M candidate sets. When the terminal equipment acquires the configuration semi-static scheduling configuration, the terminal equipment simultaneously acquires which of the M alternative sets corresponds to the semi-static scheduling configuration, wherein M is more than or equal to 2. Optionally, the terminal device obtains information configuring M HARQ-ACK codebook grades, where each HARQ-ACK codebook grade has a candidate set corresponding to the HARQ-ACK codebook grade. When the terminal equipment acquires a semi-static scheduling configuration, the terminal equipment simultaneously acquires which HARQ-ACK codebook grade the semi-static scheduling configuration corresponds to. Thus, the semi-static scheduling configuration corresponds to the alternative set of HARQ-ACK codebook classes.
Step 202, receiving a physical downlink control channel, wherein the physical downlink control channel comprises an indication for releasing at least one semi-static scheduling configuration;
in step 202, the terminal device obtains a physical downlink control channel, where the physical downlink control channel is used to release the semi-persistent scheduling configuration.
The terminal equipment receives the semi-static configuration, and after the semi-static configuration is determined to be activated by receiving the physical downlink control channel, the terminal equipment receives data in corresponding resources according to a semi-static period. And if the terminal equipment receives the semi-static configuration parameters released by the network equipment through the physical downlink control channel, the terminal equipment stops receiving data in the semi-static configuration corresponding resources.
Step 203, determining one of all the alternative values as a response time indication for representing the relative time position between the first time unit and the second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel, or the first time unit is a time unit in which the last symbol mapped by the physical downlink control channel is located; the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel; the time unit is a time slot or a sub-time slot;
in step 203, the terminal device needs to determine the feedback time of the HARQ-ACK information. And the terminal equipment determines target time according to the physical downlink control channel, wherein the target time is the time for the terminal equipment to send the HARQ-ACK response information of the physical downlink control channel.
The terminal equipment selects a target alternative set in the alternative set, and then selects 1 alternative value from the target alternative set. Examples given in steps 203A-C:
step 203A, the physical downlink control channel comprises an indication for releasing N semi-static scheduling configurations, wherein N is more than or equal to 2; in a high-level signaling, each 1 alternative set is specially used for 1 semi-static scheduling configuration; determining one of N candidate sets for the N semi-persistent scheduling configurations as a target candidate set; and taking 1 alternative value in the target alternative set as the response time indication.
For example, for the case of releasing the semi-static configuration sent by the DCI format1_1, if the candidate set configured by the higher layer signaling contains multiple values as the target candidate set, the DCI format1_1 includes an indication field indicating that the value of k is one of the multiple values configured by the higher layer signaling; if the alternative set configured by the higher layer signaling is only configured with one value as the target alternative set, the DCI format1_1 does not need to include an indication field, and the response time indication (k) is the value configured by the higher layer signaling.
Step 203B, the physical downlink control channel comprises an indication for releasing N semi-static scheduling configurations, wherein N is more than or equal to 2; the high-level signaling comprises 1 alternative set which is specially used for releasing the N semi-static scheduling configurations and is used as a target alternative set, and 1 alternative value in the target alternative set is used as the response time indication.
For example, if the physical downlink control channel releases N (N ≧ 2) semi-static configurations, and the "dl-DataToUL-ACK" configurations corresponding to the N semi-static configurations are different, the terminal device determines the target time according to a preset second "dl-DataToUL-ACK" configuration.
And according to the configured value of the second dl-DataToUL-ACK and the field of the PDSCH-to-HARQ-timing-indicator in the released N semi-static physical downlink control channels, the terminal equipment can determine the value k. And the terminal equipment determines the target time of corresponding HARQ-ACK feedback according to the time slot or the sub-time slot where the last symbol of a control resource set (CORSET) corresponding to the physical downlink control channel is located and the value of k. Or the terminal equipment determines the target time of the corresponding HARQ-ACK feedback according to the time domain resource allocation field indication in the physical downlink control channel and the value of k. Or the terminal equipment determines the target time of the corresponding HARQ-ACK feedback according to the time slot or the sub-time slot where the last symbol mapped by the physical downlink control channel is located and the value of k. The second "dl-DataToUL-ACK" is configured independently of N semi-static configurations and is dedicated to the terminal equipment to determine to release the feedback time of HARQ-ACK corresponding to the semi-static physical downlink control channel.
Or, determining the value k according to the configured value of the second dl-DataToUL-ACK. And the terminal equipment determines the target time of corresponding HARQ-ACK feedback according to the time slot or the sub-time slot where the last symbol of the corresponding control resource set of the physical downlink control channel is located and the value of k. Or the terminal equipment determines the target time of the corresponding HARQ-ACK feedback according to the time domain resource allocation field indication in the physical downlink control channel and the value of k. Or, the terminal equipment determines the target time of the corresponding HARQ-ACK feedback according to the time slot or the sub-time slot where the last symbol mapped by the physical downlink control channel is located and the value of k. The second "dl-DataToUL-ACK" is configured independently of N semi-static configurations and is dedicated to the terminal equipment to determine to release the feedback time of HARQ-ACK corresponding to the semi-static physical downlink control channel.
Step 203C, the physical downlink control channel comprises an indication for releasing N semi-persistent scheduling configurations, wherein N is more than or equal to 2; the N semi-static scheduling configurations respectively correspond to one of the M alternative sets, and M is larger than or equal to 2. Determining one of the candidate sets corresponding to the N semi-static scheduling configurations as a target candidate set; and taking 1 alternative value in the target alternative set as the response time indication.
When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which of the M candidate sets the semi-static scheduling configuration corresponds to. Thus, each of the N semi-persistent scheduling configurations corresponds to one of the M candidate sets. Next, the candidate set corresponding to the kth in the above N semi-persistent scheduling configurations may be used as a target candidate set, and 1 candidate value in the target candidate set may be used as the response time indication.
Optionally, the HARQ-ACK codebook is divided into M levels, and the M levels correspond to the M candidate sets one to one. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. The HARQ-ACK codebook grades corresponding to the N semi-persistent scheduling configurations released by the above-mentioned physical downlink control channel may be the same, may be partially the same, and may be partially different, or may be all different. And indicating that the HARQ-ACK response information of the physical downlink control channel is in a first level. The first level is one of M HARQ-ACK codebook levels. Then, the candidate set corresponding to the first rank is used as the target candidate set. The HARQ-ACK codebook level indicating the HARQ-ACK response information of the physical downlink control channel in the physical downlink control channel may be any one of the following information: the format of the physical downlink control channel, the RNTI information for the scrambling code CRC in the physical downlink control channel, the reference field in the physical downlink control channel, and the control resource set or the search space corresponding to the physical downlink control channel.
Optionally, the HARQ-ACK codebook is divided into M levels, and the M HARQ-ACK codebook levels correspond to the M candidate sets one to one. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. And only when the HARQ-ACK codebook grades corresponding to the N semi-static scheduling configurations are the same, releasing the N semi-static scheduling configurations by using one physical downlink control channel. And assuming that the HARQ-ACK codebook grades respectively included in the N semi-static scheduling configurations are all of a first grade, using an alternative set corresponding to the first grade as a target alternative set.
And step 204, sending the HARQ-ACK information in the second time unit.
And the terminal equipment sends HARQ-ACK information aiming at the released semi-static physical downlink control channel.
If the physical downlink control channel information for releasing the semi-static configuration sent by the network equipment is not correctly received at the terminal equipment end, the terminal equipment still determines the semi-static resources according to the period of the downlink semi-static configuration, and receives data at the corresponding semi-static resources. This causes unnecessary reception processing by the terminal device and interference between uplink channels, which affects system efficiency. Therefore, after receiving the physical downlink control channel releasing the semi-static configuration, the terminal device sends ACK information for the physical downlink control channel to the network device.
Fig. 3 is a schematic diagram of determining a second time unit based on a first time unit and an indication of a response time.
When the configured value of "dl-DataToUL-ACK" is a sub-slot, the DCI field "PDSCH-to-HARQ-timing-indicator", or the configured value of k of "dl-DataToUL-ACK" refers to the number of slots between the first sub-slot and the second sub-slot. The first sub-slot refers to a sub-slot in which the last symbol of the control resource set corresponding to the physical downlink control channel with the semi-static configuration is released. Or the first sub-time slot is the sub-time slot where the last symbol mapped by the physical downlink control channel with semi-static configuration is released.
For releasing the semi-statically configured physical downlink control channel, the physical downlink control channel does not need to be transmitted according to the configuration of the sub-slot. For example, the time length of the control resource set corresponding to the physical downlink control channel may be longer than the length of the sub-slot, and the time of the control resource set corresponding to the physical downlink control channel may also cross the boundary between the sub-slots. Sub-slot based HARQ-ACK feedback does not mean that the downlink transmission is also sub-slot based. The first sub-slot is a sub-slot in which the last symbol of the control resource set corresponding to the physical downlink control channel with semi-static configuration is released. And the downlink sub-time slot is a virtual sub-time slot correspondingly configured according to the sub-time slot fed back by the uplink HARQ-ACK. Taking 1 sub-slot including 7 symbols as an example, the sub-slot n _1 is used to release a control resource set corresponding to the semi-statically configured physical downlink control channel and located in the time slot n. Then, the target time corresponding to k-3 is the sub-slot n +1_2 in the slot n + 1.
Or, if the terminal device receives the semi-static configuration released by the network device through the physical downlink control channel, the terminal device stops receiving or sending data in the resource corresponding to the semi-static configuration. And releasing the physical downlink control channel of the downlink semi-static configuration and scrambling by using the CS-RNTI. And releasing the information carried by the identification field in the semi-statically configured physical downlink control channel as preset information. For example, as shown in the following table, the identification information includes HARQ process number, redundancy version, modulation and coding scheme, and frequency domain resource allocation.
Figure BDA0002264590420000151
Figure BDA0002264590420000161
In addition to the above identification field, other fields of the physical downlink control channel for releasing the semi-static configuration may be used as the position for determining the target time if there is no other indication for the semi-static configuration. If the physical downlink control channel comprises an indication for releasing at least one semi-static scheduling configuration; for each semi-persistent scheduling configuration, an alternative set is configured by a high-level signaling. An alternative set includes at least one alternative value representing a relative time position between the first time unit and the second time unit. The second time unit is a time unit for transmitting the HARQ-ACK information responding to the physical downlink control channel. Preferably, the time unit of the first time is indicated by a time domain resource allocation field in the physical downlink control channel. The present invention is not particularly limited as to how the time domain resource allocation field indicates the time unit of the first time. For example, the options of the time unit in which the first time unit is located may be preset, and the time domain resource allocation field indicates one of the preset options. For example, if the time domain resource allocation field for releasing the semi-statically configured pdcch has 4 bits of information, at most 16 preset first time units may be indicated. Alternatively, the preset time resource length may be a resource that is longer or shorter than the time slot, rather than the time slot. For example, the time unit is a sub-slot, and one sub-slot includes 7 symbols in length. However, the time domain resource allocation indicates the time domain resource with the length of 9 symbols in the field, or indicates the time domain resource with the length of 4 to the symbol, in this case, the time unit where the last symbol of the time domain resource indicated by the time domain resource allocation field is located is used as the first time unit.
Fig. 4 is a schematic diagram of selecting a response time indication determination second time unit in a plurality of alternative sets.
It is assumed that the sub-slot configuration includes 2 sub-slots within 1 slot, and each sub-slot includes 7 symbols. For example N-2. The first semi-persistent scheduling configuration corresponds to a "dl-DataToUL-ACK" configuration having a value of {1,2,3,4,5,6,7,8} slots. The second semi-persistent scheduling corresponds to a "dl-DataToUL-ACK" configuration having values of {1,2,3,4,5,6,7,8} sub-slots. If a physical downlink control channel is used for releasing a first semi-persistent scheduling configuration and a second semi-persistent scheduling configuration, the feedback time of response information of the physical downlink control channel for releasing the semi-persistent configurations is determined in the following ways:
in the first mode, the value of K is preset.
The value of K is preset, that is, the wireless communication protocol specifies that the feedback time of the HARQ-ACK corresponding to the physical downlink control channel for releasing the N semi-static configurations is determined by using the dl-DataToUL-ACK corresponding to the kth semi-static configuration. For example, K ═ 1.
Each semi-static configuration has parameters of a configuration index. The above K ═ 1, may be one configuration in which the configured index parameter is equal to 1 among a plurality of semi-static configurations. It is possible that the N semi-static configurations released by the above-mentioned physical downlink control channel releasing semi-static configuration do not include the kth semi-static configuration. However, in order to make the network device and the terminal device have the same knowledge about the HARQ-ACK feedback time corresponding to the released semi-static physical downlink control channel, "dl-DataToUL-ACK" corresponding to the K-th semi-static configuration is also used to determine the HARQ-ACK feedback time.
For example, if the value of the "dl-DataToUL-ACK" configuration corresponding to the kth semi-static configuration is {1,2,3,4,5,6,7,8} sub-slot, the terminal device determines the sub-slot of the corresponding HARQ-ACK feedback according to the sub-slot where the last symbol of the control resource set corresponding to the physical downlink control channel is located and the value of K, according to the "PDSCH-to-HARQ-timing-indicator" field in the physical downlink control channel releasing the N semi-static configurations, where the field indicates that the value of K is one of {1,2,3,4,5,6,7,8}, and the terminal device releases the N semi-static configurations. Or the terminal equipment determines the sub-time slot corresponding to the HARQ-ACK feedback according to the time domain resource allocation field in the physical downlink control channel and the value of k. Or the terminal equipment determines the sub-time slot corresponding to the HARQ-ACK feedback according to the sub-time slot where the last symbol mapped by the physical downlink control channel is located and the value of k.
And the second mode and the Kth semi-static configuration are indicated to the terminal equipment by the network equipment and used for determining the HARQ-ACK feedback time corresponding to the semi-static configuration released by the physical downlink control channel.
And the value of K is indicated to the terminal equipment by the network equipment, and the network equipment indicates the K value for determining the feedback time of the HARQ-ACK corresponding to the physical downlink control channels releasing the N semi-static configurations to the terminal equipment through the configuration information. According to the indication information, the network equipment and the terminal equipment have the same cognition on the HARQ-ACK feedback time corresponding to the physical downlink control channel with the semi-static configuration.
Mode three, the kth semi-static is the earliest candidate time corresponding to the value of the corresponding "dl-DataToUL-ACK" configuration of the N semi-static configurations.
According to the value of the 'dl-DataToUL-ACK' configuration corresponding to each of the N semi-static configurations, the terminal device may determine N candidate times, and the HARQ-ACK time corresponding to the physical downlink control channel actually used by the terminal device to release the N semi-static configurations is the earliest of the N candidate times. Suppose that the field of "PDSCH-to-HARQ-timing-indicator" in the physical downlink control channel releasing N semi-static configurations takes the value of 2. In the above example, if the control resource sets corresponding to the physical downlink control channels of the first semi-static configuration and the second semi-static configuration are released, the sub-Slot n _1 in the Slot n is used. Then the candidate time is determined to be time slot n +2 according to the value of {1,2,3,4,5,6,7,8} time slots of the "dl-DataToUL-ACK" configuration corresponding to the first semi-static configuration; the candidate time is determined to be sub-slot n +1_1 according to the value of {1,2,3,4,5,6,7,8} sub-slot of the "dl-DataToUL-ACK" configuration corresponding to the second semi-static configuration. The starting time of the sub-time slot N +1_1 is earlier than the starting time of the time slot N +2, so the target time of the sub-time slot N +1_1 is used for feeding back and releasing the HARQ-ACK corresponding to the N semi-statically configured physical downlink control channels. Optionally, the candidate time corresponding to the value of the corresponding "dl-DataToUL-ACK" configuration of the N semi-static configurations is the earliest, which means that the starting point of the candidate time is the earliest. If there are J candidates for the earliest time candidate corresponding to the value of the corresponding "dl-DataToUL-ACK" configuration of the N semi-static configurations, J >1, then the Kth semi-static is the earliest ending time of the earliest candidate time corresponding to the value of the corresponding "dl-DataToUL-ACK" configuration of the J semi-static configurations.
The K-th semi-static configuration is the earliest candidate time corresponding to the value of the corresponding 'dl-DataToUL-ACK' configuration of the N semi-static configurations. And the HARQ-ACK is fed back, so that the network equipment can obtain the response confirmation of the successful release of the semi-static configuration at the terminal equipment as soon as possible. After the response confirmation information is acquired, other information can be scheduled on the corresponding semi-static configuration resource, and the physical uplink control channel feedback resource corresponding to the semi-static configuration can be allocated to other information, so that the problems that the semi-static configuration release information cannot be effectively responded, the terminal equipment is invalid to receive and process, and the system efficiency is reduced are solved.
And in the fourth mode, the candidate time corresponding to the Kth semi-static configuration is latest.
The Kth semi-static configuration is the latest feedback HARQ-ACK at the candidate time corresponding to the value of the corresponding 'dl-DataToUL-ACK' configuration of the N semi-static configurations. Optionally, the candidate time corresponding to the value of the corresponding "dl-DataToUL-ACK" configuration of the N semi-static configurations is the latest one, which means that the starting point of the candidate time is the latest. If there are J candidate times corresponding to the values of the corresponding "dl-DataToUL-ACK" configurations of the N semi-static configurations, J >1, then the Kth semi-static is the latest candidate time starting time corresponding to the values of the corresponding "dl-DataToUL-ACK" configurations of the J semi-static configurations. Therefore, the terminal equipment can be ensured to have enough time to stop detecting the semi-static scheduling resources according to the N semi-static configurations, and the network equipment is ensured to effectively obtain response confirmation of successful release of the semi-static configurations at the terminal equipment end.
And determining which alternative set corresponding to the semi-static scheduling configuration is used as the target alternative set according to the respective index numbers of the N semi-static scheduling configurations.
And when the network equipment configures each semi-static scheduling configuration for the terminal equipment, the network equipment simultaneously indicates the information of the index number of the semi-static scheduling configuration. And determining which alternative set corresponding to the semi-static scheduling configuration is used as the target alternative set according to the respective index numbers of the N semi-static scheduling configurations.
Assuming that the candidate set corresponding to the kth semi-persistent scheduling configuration is used as the target candidate set, the kth semi-persistent scheduling configuration may be the one with the minimum semi-persistent scheduling configuration index number of each of the N semi-persistent scheduling configurations. Or, the kth semi-persistent scheduling configuration may be the largest semi-persistent scheduling configuration index number of each of the N semi-persistent scheduling configurations.
A sixth mode, where the kth semi-persistent scheduling configuration is activated earliest in the N semi-persistent scheduling configurations before the physical downlink control channel; or, the kth semi-persistent scheduling configuration is activated latest in the N semi-persistent scheduling configurations before the pdcch.
After receiving the semi-persistent scheduling configuration, the terminal device needs to receive activation information for semi-persistent scheduling, and then detects information on the semi-persistent scheduling configured resources. The N semi-persistent scheduling configurations released by the above-mentioned physical downlink control channel are necessarily activated before the physical downlink control channel. And using the alternative set of the Kth semi-static scheduling configuration as a target alternative set, wherein the Kth semi-static scheduling configuration can be determined by using the respective activation time of the N semi-static scheduling configurations. The Kth semi-persistent scheduling configuration is the earliest activated one of the N semi-persistent scheduling configurations before the physical downlink control channel; or, the kth semi-persistent scheduling configuration is activated latest in the N semi-persistent scheduling configurations before the pdcch.
After the response confirmation information is acquired, the network device can schedule other information on the corresponding semi-static configuration resource and can also allocate the physical uplink control channel feedback resource corresponding to the semi-static configuration to other information, thereby avoiding the problems that the semi-static configuration release information cannot be effectively responded, the terminal device is invalid to receive and process and the system efficiency is reduced.
Fig. 5 is a flow chart of an embodiment of the method of the present invention for a network device.
Any one embodiment of the method of the present application is applied to a network device, and comprises the following steps:
step 301, configuring at least one alternative set for the at least one semi-static scheduling configuration and the high-level signaling, wherein each alternative set comprises at least one alternative value;
e.g., semi-static configuration to N, and the network device configures the terminal device with semi-static resources through RRC signaling, e.g., the alternative set is formed by a value configured by higher layer signaling "dl-DataToUL-ACK".
For another example, the network device configures M candidate sets for the terminal device. When the network equipment configures the semi-static scheduling configuration for the terminal equipment, the network equipment simultaneously indicates which of the M alternative sets corresponds to each other, and M is more than or equal to 2. Optionally, the network device configures M HARQ-ACK codebook grades to the terminal device, where each HARQ-ACK codebook grade has a corresponding candidate set. And when the network equipment sends a semi-static scheduling configuration to the terminal equipment, indicating which HARQ-ACK codebook grade the semi-static scheduling configuration corresponds to. Thus, the semi-static scheduling configuration corresponds to the alternative set of HARQ-ACK codebook classes.
Step 302, sending a physical downlink control channel, where the physical downlink control channel includes an indication to release the at least one semi-persistent scheduling configuration;
in this embodiment, the terminal device acquires a physical downlink control channel for releasing the semi-persistent scheduling configuration. Optionally, the physical downlink control channel is scrambled by using a CS-RNTI.
Step 303, determining one of all the alternative values as a response time indication for representing a relative time position between the first time unit and the second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel, or the first time unit is a time unit in which the last symbol mapped by the physical downlink control channel is located; the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel; the time unit is a time slot or a sub-time slot;
the network device determines a target candidate set from the candidate set, and selects 1 candidate value from the target candidate set.
Optionally, the physical downlink control channel includes an indication to release N semi-persistent scheduling configurations, where N is greater than or equal to 2; the N semi-static scheduling configurations respectively correspond to one of the M alternative sets, and M is larger than or equal to 2. And determining one of the alternative sets corresponding to the N semi-static scheduling configurations as a target alternative set.
When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which of the M candidate sets the semi-static scheduling configuration corresponds to. Thus, each of the N semi-persistent scheduling configurations corresponds to one of the M candidate sets. Next, the kth corresponding candidate set in the N semi-persistent scheduling configurations may be used as a target candidate set.
Optionally, the HARQ-ACK codebook is divided into M levels, and the M levels correspond to the M candidate sets one to one. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. The HARQ-ACK codebook grades corresponding to the N semi-persistent scheduling configurations released by the above-mentioned physical downlink control channel may be the same, may be partially the same, and may be partially different, or may be all different. And indicating that the HARQ-ACK response information corresponding to the physical downlink control channel is in a first level in the physical downlink control channel. The first level is one of M HARQ-ACK codebook levels. Then, the candidate set corresponding to the first rank is used as the target candidate set. The HARQ-ACK codebook level indicating the HARQ-ACK response information of the physical downlink control channel in the physical downlink control channel may be any one of the following information: the format of the physical downlink control channel, the RNTI information for the scrambling code CRC in the physical downlink control channel, the reference field in the physical downlink control channel, and the control resource set or the search space corresponding to the physical downlink control channel.
Optionally, the HARQ-ACK codebook is divided into M levels, and the M levels correspond to the M candidate sets one to one. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. And only when the HARQ-ACK codebook grades corresponding to the N semi-static scheduling configurations are the same, releasing the N semi-static scheduling configurations by using one physical downlink control channel. And assuming that the HARQ-ACK codebook grades respectively included in the N semi-static scheduling configurations are all of a first grade, using an alternative set corresponding to the first grade as a target alternative set.
If the physical downlink control channel releases N (N is more than or equal to 2) semi-static configurations, and the corresponding 'dl-DataToUL-ACK' configurations of the N semi-static configurations are different, the network equipment determines the target time according to the 'dl-DataToUL-ACK' configuration corresponding to the Kth semi-static configuration. The value of K can be as follows:
the value of K is preset; or, the kth semi-static state is indicated by the network device to the terminal device for determining HARQ-ACK feedback time corresponding to the physical downlink control channel release semi-static configuration; or the candidate time corresponding to the Kth semi-static configuration is earliest; or the candidate time corresponding to the Kth semi-static configuration is latest; or the index number of the Kth semi-static scheduling configuration is the minimum index number in the N semi-static scheduling configurations; or the index number of the Kth semi-static scheduling configuration is the largest index number of the N semi-static scheduling configurations; or, the kth semi-persistent scheduling configuration is activated earliest in the N semi-persistent scheduling configurations before the pdcch; or, the kth semi-persistent scheduling configuration is activated latest in the N semi-persistent scheduling configurations before the pdcch.
Step 304, receiving the HARQ-ACK information in the second time unit.
After sending the physical downlink control channel releasing the semi-static configuration to the terminal device, the network device ends the activation process of the semi-static configuration only if receiving ACK information for the physical downlink control channel. For example, the resources corresponding to the semi-static configuration may be allocated to other transmissions, and the physical uplink control channel resources corresponding to the semi-static configuration may be allocated to other transmissions, etc.
Fig. 6 is a block diagram of an embodiment of a network device and a terminal device of the present invention.
The embodiment of the present application further provides a terminal device 10, which is used in the method according to any one of the embodiments of the present application, and includes:
a downlink receiving module 11, configured to receive the physical downlink control channel;
a downlink determining module 12, configured to determine the response time indication, and further determine a first time unit and a second time unit; the process of determining the response time indication, see step 203.
An uplink sending module 13, configured to send an automatic repeat request response of the physical downlink control channel in the second time unit.
The embodiment of the present application further provides a network device 20, which is used in the method according to any one of the embodiments of the present application, and includes:
a downlink sending module 21, configured to send the physical downlink control channel;
an uplink determining module 22, configured to determine the response time indication, and further determine a first time unit and a second time unit; the process of determining the response time indication, see step 303.
An uplink receiving module 23, configured to receive a hybrid automatic repeat request response of the physical downlink control channel in the second time unit.
In a system composed of a network device and a terminal device, the terminal device acquires a physical downlink control channel, and the physical downlink control channel is used for releasing semi-persistent scheduling configuration. And determining a target time according to the physical downlink control channel, wherein the target time is the time when the terminal equipment sends the HARQ-ACK response information of the physical downlink control channel, namely the position of a second time unit. The working process of the system is the same as steps 101-104, 201-204, and 301-304 in the embodiment, which is not described herein again.
The time unit is a time slot or a sub-slot, for example, when the configured value of "dl-DataToUL-ACK" is a sub-slot, the DCI field "PDSCH-to-HARQ-timing-indicator" or the configured value of k of "dl-DataToUL-ACK" (i.e., the response time indication) refers to the number of time slots between the first sub-slot and the second sub-slot. The first sub-slot refers to a sub-slot in which the last symbol of the control resource set corresponding to the physical downlink control channel with the semi-static configuration is released. Or, the first sub-slot refers to a sub-slot indicated by a time domain resource allocation field in a physical downlink control channel.
Optionally, the physical downlink control channel includes an indication to release N semi-persistent scheduling configurations, where N is greater than or equal to 2; the N semi-static scheduling configurations respectively correspond to one of the M alternative sets, and M is larger than or equal to 2. And determining one of the alternative sets corresponding to the N semi-static scheduling configurations as a target alternative set.
When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which of the M candidate sets the semi-static scheduling configuration corresponds to. Thus, each of the N semi-persistent scheduling configurations corresponds to one of the M candidate sets. Next, the kth corresponding candidate set in the N semi-persistent scheduling configurations may be used as a target candidate set.
Optionally, the HARQ-ACK codebook is divided into M levels, and the M levels correspond to the M candidate sets one to one. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. The HARQ-ACK codebook grades corresponding to the N semi-persistent scheduling configurations released by the above-mentioned physical downlink control channel may be the same, may be partially the same, and may be partially different, or may be all different. And indicating that the HARQ-ACK response information of the physical downlink control channel is in a first level. The first level is one of M HARQ-ACK codebook levels. Then, the candidate set corresponding to the first rank is used as the target candidate set. The HARQ-ACK codebook level indicating the HARQ-ACK response information of the physical downlink control channel in the physical downlink control channel may be any one of the following information: the format of the physical downlink control channel, the RNTI information for the scrambling code CRC in the physical downlink control channel, the reference field in the physical downlink control channel, and the control resource set or the search space corresponding to the physical downlink control channel.
Optionally, the HARQ-ACK codebook is divided into M levels, and the M HARQ-ACK codebook levels correspond to the M candidate sets one to one. When the network device configures a semi-static scheduling configuration for the terminal device, the network device indicates which HARQ-ACK codebook level the HARQ-ACK information of the semi-static scheduling configuration belongs to. Thus, the semi-static scheduling configuration corresponds to this alternative set of HARQ-ACK codebook levels. And only when the HARQ-ACK codebook grades corresponding to the N semi-static scheduling configurations are the same, releasing the N semi-static scheduling configurations by using one physical downlink control channel. And assuming that the HARQ-ACK codebook grades respectively included in the N semi-static scheduling configurations are all of a first grade, using an alternative set corresponding to the first grade as a target alternative set.
Optionally, if the physical downlink control channel releases N (N ≧ 2) semi-static configurations, and the "dl-datatoll-ACK" configurations corresponding to the N semi-static configurations are different, the terminal device determines the target time according to the "dl-datatoll-ACK" configuration corresponding to the kth semi-static configuration.
The value of K can be obtained in the following ways: the value of K is preset; or, the Kth semi-static configuration is indicated to the terminal equipment by the network equipment and used for determining the HARQ-ACK feedback time corresponding to the semi-static configuration released by the physical downlink control channel; or the candidate time corresponding to the Kth semi-static configuration is earliest; or, the candidate time corresponding to the kth semi-static configuration is latest.
Alternatively, if the physical downlink control channel releases N (N ≧ 2) semi-static configurations, and the "dl-DataToUL-ACK" configurations corresponding to the N semi-static configurations are different, the terminal device determines a second time unit of the target time according to a preset candidate set dedicated to release the N semi-static configurations, for example, a second "dl-DataToUL-ACK" configuration.
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. 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 invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
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.
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 (19)

1. A semi-persistent scheduling HARQ acknowledgement method is disclosed,
the physical downlink control channel comprises an indication for releasing at least one semi-static scheduling configuration;
configuring at least one alternative set for the at least one semi-static scheduling configuration and high-level signaling, wherein each alternative set comprises at least one alternative value, and one of all the alternative values is used as a response time indication to represent a relative time position between a first time unit and a second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel;
the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel;
the time unit is a time slot or a sub-time slot.
2. The method of claim 1,
or, the first time unit is a time unit in which a last symbol mapped by the physical downlink control channel is located.
3. The method of claim 1 or 2,
the physical downlink control channel comprises an indication for releasing N semi-static scheduling configurations, wherein N is more than or equal to 2;
in a high-level signaling, each 1 alternative set is specially used for 1 semi-static scheduling configuration; determining one of N candidate sets for the N semi-persistent scheduling configurations as a target candidate set; and taking 1 alternative value in the target alternative set as the response time indication.
4. The method of claim 1 or 2,
the physical downlink control channel comprises an indication for releasing N semi-static scheduling configurations, wherein N is more than or equal to 2;
the high-level signaling comprises 1 alternative set which is specially used for releasing the N semi-static scheduling configurations and is used as a target alternative set, and 1 alternative value in the target alternative set is used as the response time indication.
5. The method of claim 1 or 2,
the physical downlink control channel comprises an indication for releasing N semi-static scheduling configurations, wherein N is more than or equal to 2;
the N semi-static scheduling configurations respectively correspond to one of the M alternative sets, M is more than or equal to 2, and one of the alternative sets corresponding to the N semi-static scheduling configurations respectively is determined as a target alternative set; and taking 1 alternative value in the target alternative set as the response time indication.
6. The method of claim 5,
the HARQ-ACK codebook is divided into M grades, the M grades correspond to the M alternative sets one by one, the physical downlink control channel indicates that the HARQ-ACK response information of the physical downlink control channel is located at a first grade, and the alternative set corresponding to the first grade is a target alternative set.
7. The method of claim 5,
the HARQ-ACK codebook is divided into M grades, the M grades correspond to the M alternative sets one by one, the grades of the HARQ-ACK codebooks respectively included by the N semi-static scheduling configurations are all the first grade, and the alternative set corresponding to the first grade is the target alternative set.
8. The method of claim 3 or 5,
the target candidate set is a candidate set for a Kth semi-persistent scheduling configuration, where K is preset.
9. The method of claim 3 or 5,
the target alternative set is an alternative set of the Kth semi-static scheduling configuration, and the physical downlink control channel comprises an indication of a K value.
10. The method of claim 3 or 5,
the target candidate set is a candidate set of a Kth semi-persistent scheduling configuration, and the candidate set of the Kth semi-persistent scheduling configuration includes a minimum candidate value in the candidate sets of the N semi-persistent scheduling configurations.
11. The method of claim 3 or 5,
the target candidate set is a kth candidate set of semi-persistent scheduling configuration, and the kth candidate set of semi-persistent scheduling configuration includes a maximum candidate value in the N candidate sets of semi-persistent scheduling configuration.
12. The method of claim 3 or 5,
the target alternative set is an alternative set corresponding to the Kth semi-static scheduling configuration;
the index number of the Kth semi-static scheduling configuration is the minimum index number in the respective N semi-static scheduling configurations; alternatively, the first and second electrodes may be,
the index number of the Kth semi-static scheduling configuration is the largest of the index numbers of the N semi-static scheduling configurations; alternatively, the first and second electrodes may be,
the Kth semi-persistent scheduling configuration is the earliest activated one of the N semi-persistent scheduling configurations before the physical downlink control channel; alternatively, the first and second electrodes may be,
the Kth semi-persistent scheduling configuration is activated latest in the N semi-persistent scheduling configurations before the PDCCH.
13. The method according to any one of claims 1 to 12,
and when the target alternative set comprises at least two alternative values, the physical downlink control channel comprises an alternative value index which is used for determining a unique response time indication from the target alternative set.
14. The method according to any of claims 1 to 13, for a terminal device,
receiving a physical downlink control channel, wherein the physical downlink control channel comprises an indication for releasing at least one semi-persistent scheduling configuration; configuring at least one alternative set for the at least one semi-static scheduling configuration and high-level signaling, wherein each alternative set comprises at least one alternative value;
determining one of the alternative values as an indication of response time indicative of a relative time position between the first time unit and the second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel;
the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel; the time unit is a time slot or a sub-time slot;
and transmitting the HARQ-ACK information in the second time unit.
15. The method of claim 14,
or the first time unit is a time unit in which the last symbol mapped by the physical downlink control channel is located.
16. The method according to any of claims 1 to 13, for a network device,
sending a physical downlink control channel, wherein the physical downlink control channel comprises an indication for releasing at least one semi-persistent scheduling configuration; configuring at least one alternative set for the at least one semi-static scheduling configuration and high-level signaling, each alternative set comprising at least one alternative value,
determining one of the alternative values as an indication of response time indicative of a relative time position between the first time unit and the second time unit;
the first time unit is a time unit in which a last symbol of a control resource set corresponding to the physical downlink control channel is located, or the first time unit is indicated by a time domain resource allocation field in the physical downlink control channel;
the second time unit is a time unit used for transmitting HARQ-ACK information responding to the physical downlink control channel; the time unit is a time slot or a sub-time slot;
receiving the HARQ-ACK information in the second time unit.
17. The method of claim 16,
or the first time unit is a time unit in which the last symbol mapped by the physical downlink control channel is located.
18. A terminal device using the method of any one of claims 1 to 14, comprising:
a downlink receiving module, configured to receive the physical downlink control channel;
a downlink determining module, configured to determine the response time indication, and further determine a first time unit and a second time unit;
and an uplink transmission module, configured to send an automatic repeat request response of the physical downlink control channel in the second time unit.
19. A network device for use in the method of any one of claims 1 to 13 or 15, comprising:
a downlink sending module, configured to send the physical downlink control channel;
an uplink determining module, configured to determine the response time indication, and further determine a first time unit and a second time unit;
and an uplink receiving module, configured to receive, in the second time unit, a hybrid automatic repeat request response of the physical downlink control channel.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114641961A (en) * 2020-01-21 2022-06-17 Oppo广东移动通信有限公司 Method and device for determining retransmission resources and terminal equipment

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111200474B (en) * 2019-12-23 2022-04-22 中国信息通信研究院 Indication method and device for multi-transmission mechanism mixed transmission
CN113329494B (en) * 2020-02-28 2022-06-03 大唐移动通信设备有限公司 Verification method, sending method and equipment for releasing signaling
CN113541887B (en) * 2020-04-13 2024-01-09 维沃移动通信有限公司 Scheduling method, network equipment and terminal equipment of physical downlink shared channel
EP3910840A1 (en) * 2020-05-14 2021-11-17 Nokia Technologies Oy Multi-stage scheduling
CN115024003A (en) * 2020-08-07 2022-09-06 中兴通讯股份有限公司 Method and equipment for deactivating downlink channel
CN114374490B (en) * 2020-10-15 2023-07-11 中国信息通信研究院 Method, equipment and communication system for sending physical downlink control information
CN112887062B (en) * 2021-01-12 2022-07-19 中国信息通信研究院 Method and equipment for generating hybrid automatic repeat request response codebook
CN112910610B (en) * 2021-01-15 2022-05-24 中国信息通信研究院 Hybrid automatic repeat request response method and device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160329994A1 (en) * 2014-01-03 2016-11-10 Zte Corporation Method and device for response information transmission, terminal, base station and storage medium
US20180123743A1 (en) * 2016-10-28 2018-05-03 Asustek Computer Inc. Method and apparatus for improving harq feedback in shortened tti in a wireless communication system
CN108521886A (en) * 2018-04-25 2018-09-11 北京小米移动软件有限公司 The occupied indicating means of semi-persistent scheduling thread and device and base station
CN108605313A (en) * 2016-02-03 2018-09-28 索尼公司 Terminal installation, base station apparatus and communication means
CN109586877A (en) * 2017-09-29 2019-04-05 北京三星通信技术研究有限公司 Ascending transmission method and relevant device
CN109661791A (en) * 2018-04-04 2019-04-19 Oppo广东移动通信有限公司 Method, terminal device and the network equipment of transmitting uplink control information
CN110034878A (en) * 2018-01-12 2019-07-19 电信科学技术研究院有限公司 A kind of resource indicating method, resource determining method and equipment
CN110034861A (en) * 2018-01-11 2019-07-19 北京三星通信技术研究有限公司 A kind of HARQ-ACK information feedback method and equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160329994A1 (en) * 2014-01-03 2016-11-10 Zte Corporation Method and device for response information transmission, terminal, base station and storage medium
CN108605313A (en) * 2016-02-03 2018-09-28 索尼公司 Terminal installation, base station apparatus and communication means
US20180123743A1 (en) * 2016-10-28 2018-05-03 Asustek Computer Inc. Method and apparatus for improving harq feedback in shortened tti in a wireless communication system
CN109586877A (en) * 2017-09-29 2019-04-05 北京三星通信技术研究有限公司 Ascending transmission method and relevant device
CN110034861A (en) * 2018-01-11 2019-07-19 北京三星通信技术研究有限公司 A kind of HARQ-ACK information feedback method and equipment
CN110034878A (en) * 2018-01-12 2019-07-19 电信科学技术研究院有限公司 A kind of resource indicating method, resource determining method and equipment
CN109661791A (en) * 2018-04-04 2019-04-19 Oppo广东移动通信有限公司 Method, terminal device and the network equipment of transmitting uplink control information
CN108521886A (en) * 2018-04-25 2018-09-11 北京小米移动软件有限公司 The occupied indicating means of semi-persistent scheduling thread and device and base station

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
QUALCOMM INCORPORATED: ""Summary for Rel-15 DL/UL data scheduling and HARQ procedure"", 《3GPP TSG-RAN WG1 MEETING #94BIS R1-1811891》 *
刘佳: ""LTE系统下D2D通信的干扰控制与资源分配"", 《中国优秀硕士学位论文全文数据库（电子期刊）信息科技辑》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114641961A (en) * 2020-01-21 2022-06-17 Oppo广东移动通信有限公司 Method and device for determining retransmission resources and terminal equipment
CN114641961B (en) * 2020-01-21 2024-02-13 Oppo广东移动通信有限公司 Method and device for determining retransmission resources and terminal equipment

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