WO2021062747A1 - 调度方法和装置 - Google Patents
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- WO2021062747A1 WO2021062747A1 PCT/CN2019/109665 CN2019109665W WO2021062747A1 WO 2021062747 A1 WO2021062747 A1 WO 2021062747A1 CN 2019109665 W CN2019109665 W CN 2019109665W WO 2021062747 A1 WO2021062747 A1 WO 2021062747A1
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Definitions
- This application relates to communication technology, and in particular to a scheduling method and device.
- the time-frequency resources of 5G NR have introduced multiple subcarrier spacing (SCS) in the frequency domain.
- SCS subcarrier spacing
- the multiple subcarrier spacings range from 3.75kHz, 7.5kHz, 15kHz to 480kHz, and there are a maximum of 8 types in the time domain.
- a slot or mini-slot is used as the scheduling unit, where a slot includes 14 symbols, and a mini-slot may include 2 symbols, 4 symbols or 7 symbols.
- FIG. 1 exemplarily shows a schematic diagram of cross-carrier scheduling.
- the SCS of carrier 1 is 15kHZ
- the SCS of carrier 2 is 120kHZ
- the SCS of carrier 1 is Carrier downlink control information (DCI)
- carrier 2 carries physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH)
- network equipment can pass DCI schedules PDSCH or PUSCH in carrier 2.
- a network device can send up to 8 DCIs through carrier 1 in a time slot to schedule 8 PDSCHs or PUSCHs in carrier 2 across carriers.
- the number of DCIs that can be processed by a terminal device in a scheduling period is at most 3, which cannot support the above-mentioned scheduling scenarios.
- the present application provides a scheduling method and device, which can reduce the signaling overhead of downlink control information.
- this application provides a scheduling method, including:
- Receive downlink control information where the downlink control information is used to schedule L data channels, where L is an integer greater than 1, and the L data channels are sent in continuous or discontinuous time units in the time domain; according to the downlink control The channel determines the L data channels.
- scheduling L data channels through downlink control information can reduce the signaling overhead of downlink control information on the one hand, and on the other hand, can make the scheduling of data channels more flexible and reduce the processing time of the terminal equipment.
- the downlink control information includes first information, and the first information is used to indicate a time domain position of a first data channel, and the first data channel is one of the L data channels The earliest channel in the time domain; when the L data channels are sent on consecutive time units in the time domain, the downlink control information also includes second information, and the second information is used to indicate L; When the L data channels are sent on discontinuous time units in the time domain, the downlink control information further includes the second information and third information, and the third information is used to indicate that the L data channels The duration of the interval between adjacent channels, the duration includes M time units, and M is a positive integer.
- the downlink control information includes data channel time domain position information, and the data channel time domain position information indicates Q characters, and each character corresponds to a time unit, Q ⁇ L; when When the first character is the first value, it means that one of the L data channels is sent on the time unit corresponding to the first character; when the first character is the second value, it means that it is in the first character.
- the L data channels are not transmitted in a time unit corresponding to one character; the first character is any one of the Q characters.
- the time-domain position information of the data channel includes: the Q characters; or, a first index value, and the first index value corresponds to the Q characters.
- the downlink control information includes first information and L-1 fourth information; the first information is used to indicate the time domain position of the first data channel, and the first data channel Is the earliest channel in the time domain among the L data channels; the L-1 fourth information corresponds to the L-1 second data channel, and the L-1 second data channel is the L In the data channels other than the first data channel, the fourth information is used to indicate the time domain position of the corresponding second data channel compared to the time domain position of the first data channel The time unit offset, or the fourth information is used to indicate the time unit offset of the time domain position of the corresponding second data channel compared to the time domain position of the adjacent second data channel, the The adjacent second data channel is located before and adjacent to the corresponding second data channel in the time domain.
- the downlink control information includes a second index value, and the second index value is used to indicate the first information and L-1 fourth information;
- the first information is used to indicate the first information
- the L-1 fourth information corresponds to the L-1 second data channel,
- the L-1 second data channels are channels other than the first data channel among the L data channels, and the fourth information is used to indicate the time domain position of the corresponding second data channel
- the time unit offset compared to the time domain position of the first data channel, or the fourth information is used to indicate that the time domain position of the corresponding second data channel is compared to the adjacent second data channel
- the time unit offset of the time domain position of the channel, the adjacent second data channel is located in the time domain before the corresponding second data channel and adjacent to the corresponding second data channel .
- the L data channels when L is greater than a set threshold, are sent on consecutive time units in the time domain; or, when L is greater than a set threshold, the L data channels Sent on non-contiguous time units in the time domain.
- the first channel carries the downlink control information; the frequency domain bandwidth where the first channel is located is the same or different from the frequency domain bandwidth where the data channel is located; or, the first channel The subcarrier interval of the frequency domain bandwidth where the data channel is located is the same or different from the subcarrier interval of the frequency domain bandwidth where the data channel is located.
- the time unit from the time unit for sending the first data channel to the time unit for sending the third data channel includes at most N time units.
- N is configured in a predefined manner or by high-level signaling.
- a data channel is the earliest channel in the time domain among the L data channels, and the third data channel is the latest channel in the time domain among the L data channels.
- this application provides a HARQ feedback method, including:
- Receive downlink control information where the downlink control information is used to schedule L data channels, where L is a positive integer, and the L data channels are sent on continuous or discontinuous time units in the time domain; receiving according to the downlink control information
- the data of L data channels; the HARQ information corresponding to the data of the L data channels is fed back in one or more control resources, the one or more control resources are used to carry the HARQ information, and the one or more control resources are used to carry the HARQ information, and the one or more control resources are used to carry the HARQ information.
- the number of control resources is less than L.
- the terminal device of the present application feeds back the HARQ information of the data of the L data channels in one control resource or N control resources, which can ensure the delay of the HARQ feedback.
- the one or more control resources are one control resource, or the one or more Each control resource is N control resources, N is an integer greater than 1 and N is less than L, and the value of N is configured in advance, configured by high-level signaling, or configured in a manner associated with the first feature of the data channel, and each of the control resources Carrying the HARQ information corresponding to the data of M data channels, the value of M is related to L and N.
- the one or more control resources are one control resource, or the one or more control resources
- the resources are N control resources, N is an integer greater than 1 and N is less than L, and N is related to the time domain positions of the L data channels.
- the HARQ information corresponding to the data of the data channel within the time length of each of the control resources is fed back, and the time length is configured through physical layer signaling configuration, high-level signaling configuration, or a predefined manner Configuration.
- this application provides a communication device, including:
- a receiving module configured to receive downlink control information, where the downlink control information is used to schedule L data channels, where L is an integer greater than 1, and the L data channels are sent on continuous or non-continuous time units in the time domain;
- the processing module is configured to determine the L data channels according to the downlink control channel.
- the downlink control information includes first information, and the first information is used to indicate a time domain position of a first data channel, and the first data channel is one of the L data channels The earliest channel in the time domain; when the L data channels are sent on consecutive time units in the time domain, the downlink control information also includes second information, and the second information is used to indicate L; When the L data channels are sent on discontinuous time units in the time domain, the downlink control information further includes the second information and third information, and the third information is used to indicate that the L data channels The duration of the interval between adjacent channels, the duration includes M time units, and M is a positive integer.
- the downlink control information includes data channel time domain position information, and the data channel time domain position information indicates Q characters, and each character corresponds to a time unit, Q ⁇ L; when When the first character is the first value, it means that one of the L data channels is sent on the time unit corresponding to the first character; when the first character is the second value, it means that it is in the first character.
- the L data channels are not transmitted in a time unit corresponding to one character; the first character is any one of the Q characters.
- the time-domain position information of the data channel includes: the Q characters; or, a first index value, and the first index value corresponds to the Q characters.
- the downlink control information includes first information and L-1 fourth information; the first information is used to indicate the time domain position of the first data channel, and the first data channel Is the earliest channel in the time domain among the L data channels; the L-1 fourth information corresponds to the L-1 second data channel, and the L-1 second data channel is the L In the data channels other than the first data channel, the fourth information is used to indicate the time domain position of the corresponding second data channel compared to the time domain position of the first data channel The time unit offset, or the fourth information is used to indicate the time unit offset of the time domain position of the corresponding second data channel compared to the time domain position of the adjacent second data channel, the The adjacent second data channel is located before and adjacent to the corresponding second data channel in the time domain.
- the downlink control information includes a second index value, and the second index value is used to indicate the first information and L-1 fourth information;
- the first information is used to indicate the first information
- the L-1 fourth information corresponds to the L-1 second data channel,
- the L-1 second data channels are channels other than the first data channel among the L data channels, and the fourth information is used to indicate the time domain position of the corresponding second data channel
- the time unit offset compared to the time domain position of the first data channel, or the fourth information is used to indicate that the time domain position of the corresponding second data channel is compared to the adjacent second data channel
- the time unit offset of the time domain position of the channel, the adjacent second data channel is located in the time domain before the corresponding second data channel and adjacent to the corresponding second data channel .
- the L data channels when L is greater than a set threshold, are sent on consecutive time units in the time domain; or, when L is greater than a set threshold, the L data channels Sent on non-contiguous time units in the time domain.
- the first channel carries the downlink control information; the frequency domain bandwidth where the first channel is located is the same or different from the frequency domain bandwidth where the data channel is located; or, the first channel The subcarrier interval of the frequency domain bandwidth where the data channel is located is the same or different from the subcarrier interval of the frequency domain bandwidth where the data channel is located.
- the time unit from the time unit for sending the first data channel to the time unit for sending the third data channel includes at most N time units.
- N is configured in a predefined manner or by high-level signaling.
- a data channel is the earliest channel in the time domain among the L data channels, and the third data channel is the latest channel in the time domain among the L data channels.
- the present application provides a communication device, including:
- the receiving module is configured to receive downlink control information, where the downlink control information is used to schedule L data channels, where L is a positive integer, and the L data channels are sent on continuous or non-continuous time units in the time domain; processing module , Used to receive data of L data channels according to the downlink control information; a sending module, used to feed back HARQ information corresponding to the data of the L data channels in one or more control resources, and the one or more control resources The resource is used to carry the HARQ information, and the number of the one or more control resources is less than L.
- the one or more control resources are one control resource, or the one or more Each control resource is N control resources, N is an integer greater than 1 and N is less than L, and the value of N is configured in advance, configured by high-level signaling, or configured in a manner associated with the first feature of the data channel, and each of the control resources Carrying the HARQ information corresponding to the data of M data channels, the value of M is related to L and N.
- the one or more control resources are one control resource, or the one or more control resources
- the resources are N control resources, N is an integer greater than 1 and N is less than L, and N is related to the time domain positions of the L data channels.
- the HARQ information corresponding to the data of the data channel within the time length of each of the control resources is fed back, and the time length is configured through physical layer signaling configuration, high-level signaling configuration, or a predefined manner Configuration.
- this application provides a terminal device, including:
- One or more processors are One or more processors;
- Memory used to store one or more programs
- the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of the first to second aspects.
- the present application provides a computer-readable storage medium, including a computer program, which, when executed on a computer, causes the computer to execute the method described in any one of the first to second aspects.
- the present application provides a computer program product.
- the computer program product includes computer program code.
- the computer program code runs on a computer, the computer executes any one of the first to second aspects described above. Methods.
- Fig. 1 exemplarily shows a schematic diagram of cross-carrier scheduling
- Fig. 2 exemplarily shows a schematic diagram of a communication system to which the scheduling method of the present application is applied;
- FIG. 3 is a flowchart of an embodiment of a scheduling method of this application.
- Fig. 4 exemplarily shows a schematic diagram of Q characters
- FIG. 5 is a flowchart of an embodiment of the HARQ feedback method of this application.
- Figure 6 exemplarily shows a schematic diagram of HARQ information feedback
- Figures 7a-7c exemplarily show another schematic diagram of HARQ information feedback
- Fig. 8 exemplarily shows another schematic diagram of HARQ information feedback
- Fig. 9 exemplarily shows a schematic diagram of the fourth HARQ information feedback
- FIG. 10 exemplarily shows a schematic diagram of the fifth HARQ information feedback
- Fig. 11 exemplarily shows a schematic diagram of the sixth HARQ information feedback
- Fig. 12 exemplarily shows a schematic diagram of the seventh HARQ information feedback
- FIG. 13 exemplarily shows a schematic diagram of the eighth HARQ information feedback
- FIG. 14 is a schematic structural diagram of an embodiment of a communication device of this application.
- FIG. 15 is a schematic structural diagram of a terminal device 1500 provided by this application.
- FIG. 16 is a schematic structural diagram of a network device 1600 provided by this application.
- At least one (item) refers to one or more, and “multiple” refers to two or more.
- “And/or” is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, “A and/or B” can mean: only A, only B, and both A and B , Where A and B can be singular or plural.
- the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
- the following at least one item (a) or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
- At least one of a, b, or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, and c can be single or multiple.
- FIG. 2 exemplarily shows a schematic diagram of a communication system to which the scheduling method of the present application is applied.
- the communication system for example, Long Term Evolution (LTE), may include a base station (Base Station) and users Equipment (User Equipment, UE) 1-6, UE1-UE6 sends first information to the base station.
- UE4-UE6 can also form a communication system in which the base station can send downlink information to UE1, UE2, UE3, and UE5, and UE5 can also send downlink information to UE4 and UE6.
- the scheduling method provided in this application can also be applied to other communication systems, such as 5G NR (New Radio) system, Global System for Mobile Communication (GSM) , Universal Mobile Telecommunications System (UMTS), Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, Narrowband Internet of Things (Narrow) Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communication (eMTC) system and other communication systems, etc.
- 5G NR New Radio
- GSM Global System for Mobile Communication
- UMTS Universal Mobile Telecommunications System
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- Narrowband Internet of Things Narrowband Internet of Things
- NB-IoT Narrowband Internet of Things
- eMTC enhanced Machine-Type Communication
- the above-mentioned network equipment can be used to convert the received air frames and Internet Protocol (IP) packets to each other, as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include IP network.
- the network equipment can also coordinate the attribute management of the air interface.
- the network equipment may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (evolutional Node B, eNB, or eNodeB) in LTE. -NodeB), or gNB in 5G NR. This application does not specifically limit this.
- the aforementioned terminal device may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
- the terminal device can communicate with one or more core networks via the Radio Access Network (RAN).
- the terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal They can also be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
- PCS personal communication service
- SIP session initiation protocol
- WLL wireless local loop
- PDA Personal Digital Assistant
- Terminal equipment can also be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile station (Mobile Station), mobile station (Mobile), remote station (Remote Station), access point (Access Point), Remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device), or user equipment (User Equipment).
- FIG. 3 is a flowchart of an embodiment of a scheduling method according to this application. As shown in FIG. 3, the method of this embodiment may be applied to the communication system shown in FIG. 1, for example.
- the scheduling method may include:
- Step 301 The network device generates downlink control information.
- the downlink control information is used to schedule L data channels.
- the L data channels are continuous or non-continuous time units in the time domain (the time unit in this application can be a time slot, mini-slot, symbol or multiple Any one of the symbols) is sent, and L is an integer greater than 1.
- the downlink control information may be (Downlink control information, DCI).
- the network device allocates data channel resources to the terminal device through the downlink control information.
- the data channel may include an uplink data channel (such as PUSCH) and a downlink data channel (such as PDSCH) or side link data channel.
- Step 302 The network device sends downlink control information to the terminal device.
- the network device carries the downlink control information on a control channel (for example, a Physical Downlink Control Channel (PDCCH)) and transmits it to the terminal device.
- a control channel for example, a Physical Downlink Control Channel (PDCCH)
- the frequency domain bandwidth where the data channel is located is the same or different from the frequency domain bandwidth where the control channel is located; or, the subcarrier interval of the frequency domain bandwidth where the data channel is located is the same or the subcarrier interval of the frequency domain bandwidth where the control channel is located. different.
- Frequency domain bandwidth can be understood as carrier, or bandwidth part (BWP), or resource pool.
- BWP bandwidth part
- the carrier where the data channel is located is different from the carrier where the control channel is located, which can be called cross-carrier scheduling.
- the scheduling method of the present application Multi-slot scheduling with the same frequency domain bandwidth and the same subcarrier interval can be realized; when the frequency domain bandwidth of the data channel is the same as the frequency domain bandwidth of the control channel, and the subcarrier interval and control of the frequency domain bandwidth of the data channel are the same.
- the scheduling method of this application can realize multi-slot scheduling between the same frequency domain bandwidth and different subcarriers, and can solve the problem that the subcarrier interval of the frequency domain bandwidth where the control channel is located is small.
- the scheduling method of the present application can realize multi-slot scheduling between different frequency domain bandwidths and the same subcarrier;
- the scheduling method of this application can Realize multi-slot scheduling between different frequency domain bandwidths and different subcarriers, which can solve the problem that the subcarrier interval of the frequency domain bandwidth where the control channel is located is small, and the subcarrier interval of the same frequency
- Step 303 The terminal device determines L data channels according to the downlink control channel.
- L data channels described in the present application when L is greater than a set threshold, the L data channels can be sent on consecutive time units in the time domain. If L is greater than the set threshold, the value of L is larger. At this time, L data channels are transmitted in continuous time units in the time domain, which can reduce the transmission time of L data channels, and the network equipment schedules L at a time through downlink control information. Two data channels can save control information overhead and reduce the processing time of the terminal equipment; or, when L is greater than a set threshold, L data channels can be sent on non-contiguous time units in the time domain.
- L greater than the set threshold means that the value of L is large. At this time, in order to ensure the service quality of other terminal devices, it is necessary to allocate data channel resources to other terminal devices among the L data channels, so that the data of multiple terminal devices can be used. Channels have the opportunity to send.
- the aforementioned reduction of the processing time of the terminal device may refer to reducing the time for the terminal device to decode the downlink control information, or reducing the sum of the time for the terminal device to decode the downlink control information and the data preparation time.
- the network device schedules 4 data channels through 4 downlink control information, and each downlink control information schedules 1 data channel.
- the terminal device will start to analyze after receiving each downlink control information, but the terminal device There is a limitation of processing capacity within a control information processing interval, so too much downlink control information cannot be processed.
- one downlink control information schedules L data channels, and the terminal device only needs to decode one downlink control information to obtain scheduling information of the L data channels, so the processing time of the terminal device can be reduced.
- the data transmitted in each data channel may be the same transport block (TB) or different TBs, which is not specifically limited.
- the time unit from sending the first data channel to sending the third data channel includes at most N time units.
- the first data channel is the earliest in the time domain among the L data channels.
- the third data channel is the latest channel in the time domain among the L data channels.
- L data channels can only be sent in continuous time units in the time domain; if N>L, Then L data channels can be sent in continuous time units in the time domain (at this time L data channels occupy a total of L time units), or they can be sent in non-contiguous time units in the time domain (at this time L data The total number of time units occupied by the channel is greater than L and less than or equal to N).
- the configuration mode of N in this application includes: written in a protocol in a predefined manner, or through high-level radio resource control (Radio Resource Control, RRC) signaling, medium access control layer (Medium Access Control, MAC) signaling, SIB information or physical layer signaling indication, or based on the service type association configuration, or based on the priority association configuration of the service channel, or based on the current channel quality or the busy/idle status of the channel occupation.
- RRC Radio Resource Control
- MAC Medium Access Control
- SIB information or physical layer signaling indication or based on the service type association configuration, or based on the priority association configuration of the service channel, or based on the current channel quality or the busy/idle status of the channel occupation.
- the current network equipment scheduling terminal equipment to send relatively little information and the terminal equipment semi-statically sends less information.
- the channel is in a relatively idle state at this time, and a smaller value of N can be configured and continuous The method of sending.
- the N time units are the maximum time interval for sending the L
- this application can also set the time unit from receiving downlink control information to sending the third data channel in the L data channels, including at most P time units.
- P is configured by a predefined method or high-level signaling. .
- the network device schedules L data channels, it only needs to ensure that the total number of time units included from the time unit of receiving the downlink control information to the time unit of sending the third data channel is less than or equal to P. That is, the terminal device can occupy at most P time units in total from receiving downlink control information to sending the third data channel.
- the terminal device determines the time domain positions of the L data channels according to the information carried in the downlink control information, where the information carried in the downlink control information may include the following situations:
- the downlink control information includes first information, which is used to indicate the time domain position of the first data channel.
- the first data channel is the earliest channel in the time domain among the L data channels; when the L data channels are in the When sent on continuous time units in the time domain, the downlink control information also includes second information, which is used to indicate L; when L data channels are sent on discontinuous time units in the time domain, the downlink control information It also includes second information and third information.
- the third information is used to indicate the duration of the interval between adjacent channels in the L data channels.
- the duration includes M time units, and M is a positive integer.
- one downlink control information can schedule 8 data channels at most, and the data channel may be an uplink data channel (for example, PUSCH), a downlink data channel (for example, PDSCH), or a side link data channel.
- PUSCH uplink data channel
- PDSCH downlink data channel
- side link data channel a downlink data channel
- the following is an example of a lower row data channel, such as PDSCH.
- the downlink control information may include the following information:
- K0 indicates the above-mentioned first information.
- K0 indicates the time domain position of the first data channel, it can be the time unit number of the time domain position, or the time domain position relative to a certain time node.
- the time unit offset can also be the index value of the time domain position in a certain time period. This application does not specifically limit this.
- L According to the number of bits occupied by L, the maximum number of PDSCHs that can be scheduled can be determined. For example, if L occupies 3 bits, 8 PDSCHs can be represented by 111.
- QoS Quality of Service
- the L data channels are sent in continuous time units in the time domain to save control information overhead and reduce the processing time of the terminal equipment. On the other hand, continuous transmission can reduce the delay and enable the data of the terminal equipment to be shorter. Send out within time delay.
- the downlink control information may include the following information:
- M Represents the duration of the interval between adjacent channels in L data channels. For example, M occupies 2 bits, and 00 indicates that the duration of the interval includes 1 time unit, and 01 indicates that the duration of the interval includes 2 times. Unit, 10 means that the duration of the interval includes 3 time units, 11 means that the duration of the interval includes 4 time units; or 00 means the duration of the interval includes 0 time units, 01 means that the duration of the interval includes 1 time unit, 10 The duration of the interval includes 2 time units, and 11 indicates that the duration of the interval includes 3 time units.
- L data channels can be uniformly scheduled in the time domain, or continuously scheduled, or scheduled at equal intervals. This application is more flexible and can meet different transmission requirements. On the one hand, it is beneficial to save control information overhead and can reduce the processing time of the UE. On the other hand, L data channels can be transmitted on non-contiguous time units in the time domain. The downlink data of this terminal device and other terminal devices have the opportunity to send, and each data channel can be flexibly sent through the configuration of the time interval M between adjacent data channels.
- the downlink control information includes the time domain position information of the data channel.
- the time domain position information of the data channel indicates Q characters, and each character corresponds to a time unit, Q ⁇ L; when the first character is the first value, it indicates that the first character is the first value.
- One of the L data channels is sent in the time unit corresponding to one character; when the first character is the second value, it means that L data channels are not sent in the time unit corresponding to the first character; the first character is Q Any one of the characters.
- the above-mentioned time-domain position information of the data channel may include: Q characters; or, a first index value, and the first index value corresponds to Q characters.
- FIG. 4 exemplarily shows a schematic diagram of Q characters.
- the Q characters are 1001010001000011, and one of the L data channels is sent on the time unit corresponding to the character of 1. 1.
- L data channels are not transmitted in the time unit corresponding to the character of 0, as shown in Fig. 4 for the scheduled 6 data channels (PDSCH1-6).
- the network device directly uses Q characters to indicate the scheduled L data channels.
- Table 1 exemplarily shows the correspondence between multiple first index values and Q characters.
- the correspondence may be defined in a predefined manner, such as defining a table in the protocol, or high-level signaling Configuration correspondence:
- the correspondence can be multiple correspondences, that is, each correspondence has multiple different configurations, and each correspondence corresponds to a table.
- the multiple correspondences can be pre-defined, for example, in Multiple tables are defined in the protocol, and one of the tables is determined each time through implicit association, or high-level signaling configures one of the tables.
- the first index value is 0, which means that the time unit occupied by the L data channels is the time unit corresponding to 1 in the Q characters 1001010001000011 corresponding to the first index value 0, that is, PDSCH1-6, as shown in FIG. 4.
- the time domain position of L data channels can be configured more flexibly, and L can be configured according to the transmission requirements of the channel, such as the priority, reliability, and delay of the data channel.
- the time domain position of the data channel can be configured according to the transmission requirements of the channel, such as the priority, reliability, and delay of the data channel.
- the downlink control information includes first information and L-1 fourth information; the first information is used to indicate the time domain position of the first data channel, and the first data channel is the earliest channel in the time domain among the L data channels ;
- the L-1 fourth information corresponds to the L-1 second data channel, the L-1 second data channel is the other channel of the L data channels except the first data channel, and the fourth information is used to indicate the corresponding The time unit offset of the time domain position of the second data channel compared to the time domain position of the first data channel, or the fourth information is used to indicate that the time domain position of the corresponding second data channel is compared to the adjacent The time unit offset of the time domain position of the second data channel, and the adjacent second data channel is located before and adjacent to the corresponding second data channel in the time domain.
- the downlink control information includes: K0, 1, 2, 3, 4, where K0 represents the above-mentioned first information, and when K0 indicates the time domain position of the first data channel, it may be the time unit of the time domain position
- the serial number can also be the time unit offset of the time domain position relative to a certain point in time (for example, the time unit offset relative to the time domain position of the downlink control information), or the time domain position in a certain time.
- the index value within the time period This application does not specifically limit this.
- 1 represents the time unit offset of the time domain position of the first second data channel scheduled after the first data channel compared to the time domain position of the first data channel, that is, the time domain of the first second data channel
- the position is K0+1.
- 2 represents the time unit offset of the time domain position of the second second data channel scheduled after the first data channel compared to the time domain position of the first data channel, that is, the second The time domain position of the second data channel is K0+2.
- 3 represents the time unit offset of the time domain position of the third second data channel scheduled after the first data channel compared to the time domain position of the first data channel , That is, the time domain position of the third second data channel is K0+3.
- 4 indicates that the time domain position of the fourth second data channel scheduled after the first data channel is compared to the time domain position of the first data channel
- the time unit offset of, that is, the time domain position of the fourth second data channel is K0+4.
- the downlink control information includes: K0, 1, 2, 3, 4, where K0 represents the foregoing first information.
- 1 represents the time unit offset of the time domain position of the first second data channel scheduled after the first data channel compared to the time domain position of the first data channel, that is, the time domain of the first second data channel
- the position is K0+1.
- 2 represents the time unit offset of the time domain position of the second second data channel scheduled after the first data channel compared to the time domain position of the first second data channel, that is, the first
- the time domain position of the two second data channels is K0+1+2.
- 3 indicates that the time domain position of the third second data channel scheduled after the first data channel is compared with the time domain position of the second second data channel.
- the time unit offset of the domain position that is, the time domain position of the third second data channel is K0+1+2+3.
- 4 represents the time domain of the fourth second data channel scheduled after the first data channel
- the time unit offset of the position compared to the time domain position of the third second data channel, that is, the time domain position of the fourth second data channel is K0+1+2+3+4.
- the downlink control information includes a second index value, the second index value is used to indicate the first information and L-1 fourth information; the first information is used to indicate the time domain position of the first data channel, and the first data channel is The earliest channel in the time domain among the L data channels; the L-1 fourth information corresponds to the L-1 second data channel, and the L-1 second data channel is the first data channel among the L data channels For other channels, the fourth information is used to indicate the time unit offset of the time domain position of the corresponding second data channel compared to the time domain position of the first data channel, or the fourth information is used to indicate the corresponding second data channel.
- the time domain position of the second data channel is compared with the time unit offset of the time domain position of the adjacent second data channel, and the adjacent second data channel is located before the corresponding second data channel in the time domain and is opposite to the corresponding first data channel.
- the two data channels are adjacent.
- Table 2 exemplarily shows the correspondence between multiple second index values and the first information and L-1 fourth information.
- the correspondence may be defined in a predefined manner, for example, in the agreement Define a table or high-level signaling configuration correspondence:
- the correspondence can be multiple correspondences, that is, each correspondence has multiple different configurations, and each correspondence corresponds to a table, and the multiple correspondences can be Through a pre-defined method, for example, multiple tables are defined in the protocol, and the tables are determined to be used each time through implicit association, or one of the tables is configured by high-level signaling.
- Second index value First message Fourth information Fourth information Fourth information Fourth information Fourth information 0 K0 1 2 3 4 1 K0 1 3 4 6 2 K0 2 3 4 7 3 K0 2 3 5 6 4 K0 2 3 4 5 5 K0 2 4 5 6 6 K0 3 4 5 6 7 K0 4 5 6 7
- One of the second index values in Table 2 is carried in the downlink control information.
- the time unit occupied by L data channels is the time unit corresponding to the first information corresponding to 2 and the time unit corresponding to L-1 fourth information respectively, where K0 represents the time domain position of the first data channel, and K0 can be
- the time unit number of the time domain position can also be the time unit offset of the time domain position relative to a certain point in time (for example, the time unit offset relative to the time domain position of the downlink control information), or it can be The index value of the time domain position in a certain time period. This application does not specifically limit this.
- 2 represents the time unit offset of the time domain position of the first second data channel scheduled after the first data channel compared to the time domain position of the first data channel, that is, the time domain of the first second data channel
- the position is K0+2.
- 3 represents the time unit offset of the time domain position of the second second data channel scheduled after the first data channel compared to the time domain position of the first data channel, that is, the second
- the time domain position of the second data channel is K0+3.
- 4 represents the time unit offset of the time domain position of the third second data channel scheduled after the first data channel compared to the time domain position of the first data channel , That is, the time domain position of the third second data channel is K0+4.
- 7 indicates that the time domain position of the fourth second data channel scheduled after the first data channel is compared to the time domain position of the first data channel
- the time unit offset of, that is, the time domain position of the fourth second data channel is K0+7.
- Table 3 exemplarily shows the correspondence between multiple second index values and the first information and L-1 fourth information.
- the correspondence may be in a predefined manner or high-level signaling Configuration:
- One of the second index values in Table 2 is carried in the downlink control information.
- 0 means that the time unit occupied by the L data channels is the first information corresponding to 0 and the time unit corresponding to the L-1 fourth information respectively, where K0 represents the above-mentioned first information.
- the 1 in the third column of Table 3 indicates the time unit offset of the time domain position of the first second data channel scheduled after the first data channel compared to the time domain position of the first data channel, that is, the first first data channel.
- the time domain position of the second data channel is K0+1.
- the 2 in the fourth column of Table 3 represents the time unit offset of the time domain position of the second second data channel scheduled after the first data channel compared to the time domain position of the first second data channel, that is, the first The time domain position of the two second data channels is K0+1+2.
- 1 in the fifth column of Table 3 indicates the time unit offset of the time domain position of the third second data channel scheduled after the first data channel compared to the time domain position of the second second data channel, that is, the first The time domain positions of the three second data channels are K0+1+2+1.
- the 2 in the sixth column of Table 3 represents the time unit offset of the time domain position of the fourth second data channel scheduled after the first data channel compared to the time domain position of the third second data channel, that is, the first The time domain positions of the four second data channels are K0+1+2+1+2.
- the time domain position of L data channels can be configured more flexibly, and L can be configured according to the transmission requirements of the channel, such as the priority, reliability, and delay of the data channel.
- the time domain position of the data channel can be configured according to the transmission requirements of the channel, such as the priority, reliability, and delay of the data channel.
- scheduling L data channels through downlink control information can reduce the signaling overhead of downlink control information on the one hand, and on the other hand, can make the scheduling of data channels more flexible and reduce the processing time of the terminal equipment.
- FIG. 5 is a flowchart of an embodiment of the HARQ feedback method of this application. As shown in FIG. 5, the method of this embodiment may be applied to the communication system shown in FIG. 1, for example.
- the HARQ feedback method may include:
- Step 501 The network device sends downlink control information to the terminal device.
- the network equipment carries the downlink control information on the control channel (for example, PDCCH) and transmits it to the terminal equipment.
- the frequency domain bandwidth where the data channel is located is the same or different from the frequency domain bandwidth where the control channel is located; or, the subcarrier interval of the frequency domain bandwidth where the data channel is located is the same or the subcarrier interval of the frequency domain bandwidth where the control channel is located. different.
- Step 502 The terminal device receives data of L data channels according to the downlink control information.
- the terminal device may use the method in the method embodiment shown in FIG. 3 to determine L data channels according to the downlink control information, and then receive data on the L data channels.
- Step 503 The terminal device feeds back HARQ information corresponding to the data of the L data channels in one or more control resources.
- the terminal device feeds back HARQ information to the network device according to the analysis result of the data received on the L data channels.
- the data of L data channels corresponds to L HARQ information.
- the terminal device in this application can feed back the L HARQ information on one or more control resources, and the number of one or more control resources is less than L, that is, the terminal device does not need to occupy a control resource for the data of each data channel to feed back HARQ information.
- the terminal device feeds back HARQ information in one control resource or N control resources, where N is an integer greater than 1 and N is less than L,
- N is pre-defined, configured by physical layer signaling, high-level signaling, or configured in a manner associated with the first feature of the data channel.
- Each control resource carries HARQ information corresponding to the data of M data channels. The value of M and L Related to N.
- the above-mentioned high-level signaling configuration includes at least one of RRC signaling, MAC signaling, or SIB information.
- the physical layer signaling includes DCI.
- the first feature of the data channel includes the priority of the data channel, the priority of the data channel content, and the data The delay requirement of the channel, the reliability requirement of the data channel or other QoS-related requirements, or the channel quality during the transmission of the data channel or the related configuration of the busy/idle state occupied by the channel.
- the data channel has a high latency requirement, that is, transmission and feedback need to be completed in a short time, and a relatively large value of N is configured so that the terminal device quickly feeds back HARQ information.
- the correlation between the value of M and L and N may include, for example, the following methods: Method 1.
- Method 1 According to the first feature of the data channel, the HARQ information corresponding to the data of the L data channels is carried on the N control resources in a manner realized by the terminal device.
- the number M of HARQ information that each control resource carries data corresponding to the data channel is variable, and the number of M is flexibly adjusted.
- Method 2. The ratio of the number of data channels L to the number of control resources N is taken down, namely Method 3.
- the ratio of the number of data channels L to the number of control resources N is taken upwards, namely In the foregoing three cases, the number of HARQ information corresponding to the data of the data channel carried by the latest control resource in the time domain may be greater than or less than M, for example, 8 data channels, according to the delay requirements, configure 3 Control resources are fed back. If method 2 is used, M is 2, then the number of HARQ information carried by the three control resources are 2, 2, and 4 respectively. If method 3 is used, M is 3, then 3 control resources The number of HARQ information carried is 3, 3, and 2 respectively.
- control resources in this application include uplink control channel resources or side link feedback channel resources, which are used to carry HARQ information corresponding to data.
- the terminal device feeds back HARQ information in one control resource or N control resources, where N is an integer greater than 1 and N is less than L, and N is equal to
- N is an integer greater than 1 and N is less than L
- N is equal to
- the time domain positions of the L data channels are correlated. That is, at least two data channels in the L data channels are separated by at least one time unit, for example, among the eight data channels, the third and fourth data channels are separated by one time unit, and the fifth and sixth data channels are separated by one time unit. There are 2 time units between them; or, among the 8 data channels, there are one or more time units between every two adjacent data channels.
- the foregoing N is related to the time domain positions of the L data channels, and at least two data channels in the L data channels are separated by at least one time unit, which may include the following methods as examples: Method 1. Among the L data channels Adjacent data channels feed back HARQ information in the same control resource. Method 2. Define the time interval threshold N same , which can be configured through a predefined method or high-level signaling. The configuration method will not be repeated. If the time unit of the interval between two adjacent channels in the L data channels is less than or equal to N same , The HARQ information is fed back in the same control resource.
- Fig. 6 exemplarily shows a schematic example of HARQ information feedback. As shown in Fig.
- N same is configured as 1, and the interval between PDSCH1 and PDSCH2 is equal to N same , corresponding to HARQ1 and HARQ2, then in the first one HARQ1-2 is fed back on two control resources. Similarly, the interval between PDSCH2 and PDSCH3 is 2 greater than N same . On the second control resource, HARQ3-4 is fed back. The interval between PDSCH4 and PDSCH5 is 3 greater than N same . HARQ5 is fed back on the third control resource.
- the terminal device feeds back the HARQ information corresponding to the data of the data channel within the time length of each control resource, and the time length is configured through physical layer signaling configuration, high-level signaling configuration, or a predefined manner.
- the high-level signaling configuration includes RRC signaling, MAC signaling, and SIB information. That is, if the time length is pre-configured, the terminal device can create a time window with the length of time when it feeds back HARQ information, and the terminal device targets the data in the window each time The channel feeds back the HARQ information of the data sent on it.
- the time length of the time window in this application can be multiple time units, the starting position of the time window taking effect can be the starting symbol of the time unit where the earliest channel of the L data channels in the time domain is located, and the time length corresponds to the time
- the HARQ information corresponding to the data channel in a unit is carried in a control resource; if the total time unit occupied by the L data channels is greater than the time length of the time window, the position where the first time window ends is used as the start position of the next time window .
- Figures 7a-7c exemplarily show another schematic diagram of HARQ information feedback. As shown in Figure 7, a time window with a time length of 4 time units is configured, and PDSCH1-4 is located in the first time window.
- HARQ1-4 is fed back on the first control resource
- PDSCH5-8 is located in the second time window
- HARQ5-8 is fed back on the second control resource.
- a time window with a length of 4 time units when a time window with a length of 4 time units is configured, PDSCH1-3 is located in the first time window, HARQ1-3 is fed back on the first control resource, and PDSCH4-5 is located in the second time window.
- HARQ4-5 is fed back on the second control resource, PDSCH6-8 is located in the third time window, and HARQ6-8 is fed back on the third control resource.
- PDSCH1-4 is located in the first time window, HARQ1-4 is fed back on the first control resource, and PDSCH5-6 is located in the second time window. Within the window, HARQ5-6 is fed back on the second control resource, PDSCH7-8 is located in the third time window, and HARQ7-8 is fed back on the third control resource.
- the following describes the HARQ feedback situation of the terminal device through a specific embodiment: It is assumed that the downlink control information schedules 8 data channels PDSCH1-8, and HARQ1-8 corresponds to PDSCH1-8.
- the L data channels are sent in continuous time units in the time domain, and the terminal equipment feeds back the HARQ information corresponding to the data of the L data channels in a control resource
- Fig. 8 exemplarily shows another schematic diagram of HARQ information feedback. As shown in Fig. 8, the terminal device feeds back 8 HARQ information (HARQ1-8) on one control resource.
- HARQ1-8 HARQ information
- the L data channels are sent on consecutive time units in the time domain, and the terminal equipment feeds back the HARQ information corresponding to the data of the L data channels in the two control resources
- Fig. 9 exemplarily shows a schematic diagram of the fourth HARQ information feedback.
- the terminal device feeds back 8 HARQ information on 2 control resources
- the first control resource feeds back HARQ1-4
- the second HARQ5-8 is fed back to each control resource.
- the terminal device may also use other numbers of control resources (for example, 3, 4, etc.) to feed back HARQ information corresponding to the data of the 8 data channels, for example, the first control resource HARQ1-2 is fed back, HARQ3-4 is fed back to the second control resource, HARQ5-6 is fed back to the third control resource, and HARQ7-8 is fed back to the fourth control resource; or HARQ1-3 is fed back to the first control resource , HARQ4-5 is fed back on the second control resource, and HARQ6-8 is fed back on the third control resource.
- control resources for example, the first control resource HARQ1-2 is fed back, HARQ3-4 is fed back to the second control resource, HARQ5-6 is fed back to the third control resource, and HARQ7-8 is fed back to the fourth control resource; or HARQ1-3 is fed back to the first control resource , HARQ4-5 is fed back on the second control resource, and HARQ6-8 is fed back on the third control resource.
- the L data channels are sent on non-contiguous time units in the time domain, and the terminal equipment feeds back the HARQ information corresponding to the data of the L data channels in a control resource
- Fig. 10 exemplarily shows a schematic diagram of the fifth HARQ information feedback. As shown in Fig. 10, there is an interval of 2 time units between PDSCH4 and PDSCH5, and the terminal device feeds back 8 HARQ information (HARQ1- 8).
- the L data channels are sent on non-contiguous time units in the time domain, and the terminal equipment feeds back the HARQ information corresponding to the data of the L data channels in the two control resources.
- Fig. 11 exemplarily shows a schematic diagram of the sixth HARQ information feedback. As shown in Fig. 11, there is an interval of 2 time units between PDSCH4 and PDSCH5. The terminal device feeds back 8 HARQ information on 2 control resources. HARQ1-4 is fed back to one control resource, and HARQ5-8 is fed back to the second control resource.
- Fig. 12 exemplarily shows a schematic diagram of the seventh HARQ information feedback.
- the interval between PDSCH1 and PDSCH2 is 1 time unit
- the interval between PDSCH4 and PDSCH5 is 2 time units
- the interval between PDSCH6 and PDSCH7 is 2 time units.
- the terminal device feeds back 8 HARQ information on 1 control resource.
- Figure 13 exemplarily shows a schematic diagram of the eighth HARQ information feedback.
- the interval between PDSCH1 and PDSCH2 is 1 time unit
- the interval between PDSCH4 and PDSCH5 is 2 time units
- the interval between PDSCH6 and PDSCH7 is 2 time units.
- the terminal device feeds back 8 HARQ information on 4 control resources.
- the first control resource feeds back HARQ1
- the second control resource feeds back HARQ2-4
- the third control resource feeds back HARQ5-6.
- HARQ7-8 is fed back on the fourth control resource.
- the number of control resources used by the terminal device can be pre-defined, configured by high-level signaling, or combined with
- the first feature of the data channel is configured in a manner of association, each control resource carries HARQ information corresponding to the data of M data channels, and the value of M is related to L and the number of control resources.
- the terminal device of the present application feeds back the HARQ information of the data of the L data channels in one control resource or N control resources, which can ensure the delay of the HARQ feedback.
- FIG. 14 is a schematic structural diagram of an embodiment of a communication device of this application. As shown in FIG. 14, the device of this embodiment can be applied to the terminal device in the above-mentioned embodiment.
- the communication device may include: a receiving module 1401, a processing module 1402, and a sending module 1403.
- the receiving module 1401 is configured to receive downlink control information, where the downlink control information is used to schedule L data channels, where L is an integer greater than 1, and the L data channels are in time
- the processing module 1402 is configured to determine the L data channels according to the downlink control channel.
- the downlink control information includes first information, and the first information is used to indicate a time domain position of a first data channel, and the first data channel is one of the L data channels The earliest channel in the time domain; when the L data channels are sent on consecutive time units in the time domain, the downlink control information also includes second information, and the second information is used to indicate L; When the L data channels are sent on discontinuous time units in the time domain, the downlink control information further includes the second information and third information, and the third information is used to indicate that the L data channels The duration of the interval between adjacent channels, the duration includes M time units, and M is a positive integer.
- the downlink control information includes data channel time domain position information, and the data channel time domain position information indicates Q characters, and each character corresponds to a time unit, Q ⁇ L; when When the first character is the first value, it means that one of the L data channels is sent on the time unit corresponding to the first character; when the first character is the second value, it means that it is in the first character.
- the L data channels are not transmitted in a time unit corresponding to one character; the first character is any one of the Q characters.
- the time-domain position information of the data channel includes: the Q characters; or, a first index value, and the first index value corresponds to the Q characters.
- the downlink control information includes first information and L-1 fourth information; the first information is used to indicate the time domain position of the first data channel, and the first data channel Is the earliest channel in the time domain among the L data channels; the L-1 fourth information corresponds to the L-1 second data channel, and the L-1 second data channel is the L In the data channels other than the first data channel, the fourth information is used to indicate the time domain position of the corresponding second data channel compared to the time domain position of the first data channel The time unit offset, or the fourth information is used to indicate the time unit offset of the time domain position of the corresponding second data channel compared to the time domain position of the adjacent second data channel, the The adjacent second data channel is located before and adjacent to the corresponding second data channel in the time domain.
- the downlink control information includes a second index value, and the second index value is used to indicate the first information and L-1 fourth information;
- the first information is used to indicate the first information
- the L-1 fourth information corresponds to the L-1 second data channel,
- the L-1 second data channels are channels other than the first data channel among the L data channels, and the fourth information is used to indicate the time domain position of the corresponding second data channel
- the time unit offset compared to the time domain position of the first data channel, or the fourth information is used to indicate that the time domain position of the corresponding second data channel is compared to the adjacent second data channel
- the time unit offset of the time domain position of the channel, the adjacent second data channel is located in the time domain before the corresponding second data channel and adjacent to the corresponding second data channel .
- the L data channels when L is greater than a set threshold, are sent on consecutive time units in the time domain; or, when L is greater than a set threshold, the L data channels Sent on non-contiguous time units in the time domain.
- the first channel carries the downlink control information; the frequency domain bandwidth where the first channel is located is the same or different from the frequency domain bandwidth where the data channel is located; or, the first channel The subcarrier interval of the frequency domain bandwidth where the data channel is located is the same or different from the subcarrier interval of the frequency domain bandwidth where the data channel is located.
- the time unit from the time unit for sending the first data channel to the time unit for sending the third data channel includes at most N time units.
- N is configured in a predefined manner or by high-level signaling.
- a data channel is the earliest channel in the time domain among the L data channels, and the third data channel is the latest channel in the time domain among the L data channels.
- the receiving module 1401 is configured to receive downlink control information, where the downlink control information is used to schedule L data channels, where L is a positive integer, and the L data channels are in the time domain.
- the HARQ information corresponding to the data of, the one or more control resources are used to carry the HARQ information, and the number of the one or more control resources is less than L.
- the one or more control resources are one control resource, or the one or more Each control resource is N control resources, N is an integer greater than 1 and N is less than L, and the value of N is configured in advance, configured by high-level signaling, or configured in a manner associated with the first feature of the data channel, and each of the control resources Carrying the HARQ information corresponding to the data of M data channels, the value of M is related to L and N.
- the one or more control resources are one control resource, or the one or more control resources
- the resources are N control resources, N is an integer greater than 1 and N is less than L, and N is related to the time domain positions of the L data channels.
- the HARQ information corresponding to the data of the data channel within the time length of each of the control resources is fed back, and the time length is configured through physical layer signaling configuration, high-level signaling configuration, or a predefined manner Configuration.
- the device in this embodiment can be used to implement the technical solutions of any of the method embodiments shown in FIGS. 3-11, and its implementation principles and technical effects are similar, and will not be repeated here.
- FIG. 15 is a schematic structural diagram of a terminal device 1500 provided by this application. As shown in FIG. 15, the terminal device 1500 includes a processor 1501 and a transceiver 1502.
- the terminal device 1500 further includes a memory 1503.
- the processor 1501, the transceiver 1502, and the memory 1503 can communicate with each other through an internal connection path to transfer control signals and/or data signals.
- the memory 1503 is used to store computer programs.
- the processor 1501 is configured to execute a computer program stored in the memory 1503.
- the memory 1503 may also be integrated in the processor 1501 or independent of the processor 1501.
- the terminal device 1500 may further include an antenna 1504 for transmitting the signal output by the transceiver 1502.
- the transceiver 1502 receives signals through an antenna.
- the terminal device 1500 may further include a power supply 1505 for providing power to various devices or circuits in the terminal device.
- the terminal device 1500 may also include one of an input unit 1506, a display unit 1507 (also can be regarded as an output unit), an audio circuit 1508, a camera 1509, a sensor 1510, etc. Multiple.
- the audio circuit may also include a speaker 15081, a microphone 15082, etc., which will not be described in detail.
- FIG. 16 is a schematic structural diagram of a network device 1600 provided by this application.
- the network equipment 1600 includes an antenna 1601, a radio frequency device 1602, and a baseband device 1603.
- the antenna 1601 is connected to the radio frequency device 1602.
- the radio frequency device 1602 receives the signal from the terminal device through the antenna 1601, and sends the received signal to the baseband device 1603 for processing.
- the baseband device 1603 generates a signal that needs to be sent to the terminal device, and sends the generated signal to the radio frequency device 1602.
- the radio frequency device 1602 transmits the signal through the antenna 1601.
- the baseband device 1603 may include one or more processing units 16031.
- the processing unit 16031 may specifically be a processor.
- the baseband device 1603 may further include one or more storage units 16032 and one or more communication interfaces 16033.
- the storage unit 16032 is used to store computer programs and/or data.
- the communication interface 16033 is used to exchange information with the radio frequency device 1602.
- the storage unit 16032 may specifically be a memory, and the communication interface 16033 may be an input/output interface or a transceiver circuit.
- the storage unit 16032 may be a storage unit on the same chip as the processing unit 16031, that is, an on-chip storage unit, or a storage unit on a different chip from the processing unit 16031, that is, an off-chip storage unit. This application does not limit this.
- the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
- the processor can be a general-purpose processor, digital signal processor (digital signal processor, DSP), application-specific integrated circuit (ASIC), field programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware encoding processor, or executed and completed by a combination of hardware and software modules in the encoding processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
- the memory mentioned in the above embodiments may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM random access memory
- static random access memory static random access memory
- dynamic RAM dynamic RAM
- DRAM dynamic random access memory
- synchronous dynamic random access memory synchronous DRAM, SDRAM
- double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- synchronous connection dynamic random access memory serial DRAM, SLDRAM
- direct rambus RAM direct rambus RAM
- the disclosed system, device, and method may be implemented in other ways.
- the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (personal computer, server, or network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .
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Abstract
本申请提供一种调度方法和装置。本申请调度方法,包括:接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为大于1的整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;根据所述下行控制信道确定所述L个数据信道。本申请可以降低下行控制信息的信令开销,减小终端设备处理的时间。
Description
本申请涉及通信技术,尤其涉及一种调度方法和装置。
5G NR的时频资源,在频域上引入了多个子载波间隔(subcarrier spacing,SCS),该多个子载波间隔从3.75kHz、7.5kHz、15kHz到480kHz,最多8种,在时域上以时隙(slot)或迷你时隙(mini-slot)作为调度单位,其中,一个slot包括14个符号,一个mini-slot可以包括2个符号,4个符号或者7个符号。
目前在R16标准会议中讨论跨载波调度,图1示例性的示出了一种跨载波调度的示意图,如图1所示,载波1的SCS为15kHZ,载波2的SCS为120kHZ,载波1中承载下行控制信息(downlink control information,DCI),载波2中承载物理下行共享信道(physical downlink shared channel,PDSCH)或者物理上行共享信道(physical uplink shared channel,PUSCH),网络设备可以通过载波1中的DCI调度载波2中的PDSCH或者PUSCH。受SCS的影响,网络设备可以在一个时隙内通过载波1最多发送8个DCI来跨载波调度载波2中的8个PDSCH或者PUSCH。
但是目前的协议中,终端设备在一个调度周期内可以处理的DCI数量最多为3个,无法支持上述调度场景。
发明内容
本申请提供一种调度方法和装置,可以降低下行控制信息的信令开销。
第一方面,本申请提供一种调度方法,包括:
接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为大于1的整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;根据所述下行控制信道确定所述L个数据信道。
本实施例,通过下行控制信息调度L个数据信道,一方面可以降低下行控制信息的信令开销,另一方面可以使数据信道的调度更加灵活,减小终端设备处理的时间。
在一种可能的实现方式中,所述下行控制信息包括第一信息,所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;当所述L个数据信道在时域上连续的时间单位上发送时,所述下行控制信息还包括第二信息,所述第二信息用于指示L;当所述L个数据信道在时域上不连续的时间单位上发送时,所述下行控制信息还包括所述第二信息和第三信息,所述第三信息用于指示所述L个数据信道中相邻信道之间间隔的时长,所述时长包括M个时间单位,M为正整数。
在一种可能的实现方式中,所述下行控制信息包括数据信道时域位置信息,所述数据信道时域位置信息指示Q个字符,每个所述字符对应一个时间单位,Q≥L;当第一字符为第一值时,表示在所述第一字符对应的时间单位上发送所述L个数据信道的其中之一;当所述第一字符为第二值时,表示在所述第一字符对应的时间单位上不发送所述L个数据信道;所述第一字符为所述Q个字符中的任意一个。
在一种可能的实现方式中,所述数据信道时域位置信息包括:所述Q个字符;或者,第一索引值,所述第一索引值对应所述Q个字符。
在一种可能的实现方式中,所述下行控制信息包括第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
在一种可能的实现方式中,所述下行控制信息包括第二索引值,所述第二索引值用于指示第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
在一种可能的实现方式中,当L大于设定阈值时,所述L个数据信道在时域上连续的时间单位上发送;或者,当L大于设定阈值时,所述L个数据信道在时域上非连续的时间单位上发送。
在一种可能的实现方式中,第一信道承载所述下行控制信息;所述第一信道所在的频域带宽和所述数据信道所在的频域带宽相同或不同;或者,所述第一信道所在的频域带宽的子载波间隔和所述数据信道所在的频域带宽的子载波间隔相同或不同。
在一种可能的实现方式中,从发送第一数据信道的时间单位到发送第三数据信道的时间单位最多包括N个时间单位,N通过预定义的方式,或者高层信令配置,所述第一数据信道为所述L个数据信道中在时域上最早的信道,所述第三数据信道为所述L个数据信道中在时域上最晚的信道。
第二方面,本申请提供一种HARQ反馈方法,包括:
接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为正整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;根据所述下行控制信息接收L个数据信道的数据;在一个或多个控制资源反馈所述L个数据信道的数据对应的HARQ信息,所述一个或多个控制资源用于承载所述HARQ信息,且所述一个或多个控制资源的数量小于L。
本申请终端设备在一个控制资源或者N个控制资源反馈L个数据信道的数据的HARQ信息,可以保证HARQ反馈的时延。
在一种可能的实现方式中,若所述L个数据信道在时域上连续或非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个 控制资源,N为大于1的整数且N小于L,N的值通过预先定义、高层信令配置或者与数据信道的第一特征关联的方式配置,每个所述控制资源承载M个数据信道的数据对应的HARQ信息,M的值与L和N相关。
在一种可能的实现方式中,若所述L个数据信道在时域上非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N与所述L个数据信道的时域位置相关。
在一种可能的实现方式中,在每个所述控制资源反馈时间长度内的数据信道的数据对应的HARQ信息,所述时间长度通过物理层信令配置、高层信令配置或者预先定义的方式配置。
第三方面,本申请提供一种通信装置,包括:
接收模块,用于接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为大于1的整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;处理模块,用于根据所述下行控制信道确定所述L个数据信道。
在一种可能的实现方式中,所述下行控制信息包括第一信息,所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;当所述L个数据信道在时域上连续的时间单位上发送时,所述下行控制信息还包括第二信息,所述第二信息用于指示L;当所述L个数据信道在时域上不连续的时间单位上发送时,所述下行控制信息还包括所述第二信息和第三信息,所述第三信息用于指示所述L个数据信道中相邻信道之间间隔的时长,所述时长包括M个时间单位,M为正整数。
在一种可能的实现方式中,所述下行控制信息包括数据信道时域位置信息,所述数据信道时域位置信息指示Q个字符,每个所述字符对应一个时间单位,Q≥L;当第一字符为第一值时,表示在所述第一字符对应的时间单位上发送所述L个数据信道的其中之一;当所述第一字符为第二值时,表示在所述第一字符对应的时间单位上不发送所述L个数据信道;所述第一字符为所述Q个字符中的任意一个。
在一种可能的实现方式中,所述数据信道时域位置信息包括:所述Q个字符;或者,第一索引值,所述第一索引值对应所述Q个字符。
在一种可能的实现方式中,所述下行控制信息包括第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
在一种可能的实现方式中,所述下行控制信息包括第二索引值,所述第二索引值用于指示第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第 一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
在一种可能的实现方式中,当L大于设定阈值时,所述L个数据信道在时域上连续的时间单位上发送;或者,当L大于设定阈值时,所述L个数据信道在时域上非连续的时间单位上发送。
在一种可能的实现方式中,第一信道承载所述下行控制信息;所述第一信道所在的频域带宽和所述数据信道所在的频域带宽相同或不同;或者,所述第一信道所在的频域带宽的子载波间隔和所述数据信道所在的频域带宽的子载波间隔相同或不同。
在一种可能的实现方式中,从发送第一数据信道的时间单位到发送第三数据信道的时间单位最多包括N个时间单位,N通过预定义的方式,或者高层信令配置,所述第一数据信道为所述L个数据信道中在时域上最早的信道,所述第三数据信道为所述L个数据信道中在时域上最晚的信道。
第四方面,本申请提供一种通信装置,包括:
接收模块,用于接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为正整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;处理模块,用于根据所述下行控制信息接收L个数据信道的数据;发送模块,用于在一个或多个控制资源反馈所述L个数据信道的数据对应的HARQ信息,所述一个或多个控制资源用于承载所述HARQ信息,且所述一个或多个控制资源的数量小于L。
在一种可能的实现方式中,若所述L个数据信道在时域上连续或非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N的值通过预先定义、高层信令配置或者与数据信道的第一特征关联的方式配置,每个所述控制资源承载M个数据信道的数据对应的HARQ信息,M的值与L和N相关。
在一种可能的实现方式中,若所述L个数据信道在时域上非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N与所述L个数据信道的时域位置相关。
在一种可能的实现方式中,在每个所述控制资源反馈时间长度内的数据信道的数据对应的HARQ信息,所述时间长度通过物理层信令配置、高层信令配置或者预先定义的方式配置。
第五方面,本申请提供一种终端设备,包括:
一个或多个处理器;
存储器,用于存储一个或多个程序;
当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现如上述第一至二方面中任一项所述的方法。
第六方面,本申请提供一种计算机可读存储介质,包括计算机程序,所述计算机程序在计算机上被执行时,使得所述计算机执行上述第一至二方面中任一项所述的方法。
第七方面,本申请提供一种计算机程序产品,所述计算机程序产品包括计算机程序代 码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第一至二方面中任一项所述的方法。
图1示例性的示出了一种跨载波调度的示意图;
图2示例性的示出了本申请调度方法所应用的一个通信系统的示意图;
图3为本申请调度方法实施例的流程图;
图4示例性的示出了Q个字符的一种示意图;
图5为本申请HARQ反馈方法实施例的流程图;
图6示例性的示出了一个HARQ信息反馈的示意图
图7a-7c示例性的示出了另一个HARQ信息反馈的示意图;
图8示例性的示出了又一个HARQ信息反馈的示意图;
图9示例性的示出了第四个HARQ信息反馈的示意图;
图10示例性的示出了第五个HARQ信息反馈的示意图;
图11示例性的示出了第六个HARQ信息反馈的示意图;
图12示例性的示出了第七个HARQ信息反馈的示意图;
图13示例性的示出了第八个HARQ信息反馈的示意图;
图14为本申请通信装置实施例的结构示意图;
图15为本申请提供的终端设备1500的示意性结构图;
图16为本申请提供的网络设备1600的示意性结构图。
为使本申请的目的、技术方案和优点更加清楚,下面将结合本申请中的附图,对本申请中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书实施例和权利要求书及附图中的术语“第一”、“第二”等仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元。方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解,在本申请中,“至少一个(项)”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,用于描述关联对象的关联关系,表示可以存在三种关系,例如,“A和/或B”可以表示:只存在A,只存在B以及同时存在A和B三种情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b或c中的至少一项(个),可以表示:a,b,c,“a和b”,“a和c”,“b和c”,或“a和b和c”,其中a,b,c可以是单个,也可以是多个。
图2示例性的示出了本申请调度方法所应用的一个通信系统的示意图,如图2所示, 该通信系统例如长期演进(Long Term Evolution,LTE),可以包括基站(Base Station)和用户设备(User Equipment,UE)1-6,UE1-UE6发送第一信息给基站。此外,UE4-UE6也可以组成一个通信系统,在该通信系统中,基站可以发送下行信息给UE1、UE2、UE3和UE5,UE5也可以发送下行信息给UE4和UE6。
需要说明的是,本申请提供的调度方法除了适用于上述LTE系统外,还可以适用于其它的通信系统,例如5G NR(New Radio)系统、全球移动通信系统(Global System for Mobile Communication,GSM),移动通信系统(Universal Mobile Telecommunications System,UMTS),码分多址接入(Code Division Multiple Access,CDMA)系统,宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统,窄带物联网(Narrow Band Internet of Things,NB-IoT)系统、增强型机器通信(enhanced Machine-Type Communication,eMTC)系统以及其它通信系统等。只要该通信系统中网络设备需要发送下行控制信息,终端设备需要接收该下行控制信息,并根据该下行控制信息确定数据信道,均可使用本申请提供的调度方法。
上述网络设备可以用于将收到的空中帧与网络协议(Internet Protocol,IP)分组进行相互转换,作为无线终端与接入网的其余部分之间的路由器,其中接入网的其余部分可以包括IP网络。该网络设备还可以协调对空中接口的属性管理。示例性的,网络设备可以是GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(evolutional Node B,eNB或e-NodeB),或者5G NR中的gNB。本申请对此不做具体限定。
上述终端设备可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,终端设备可以是移动终端,例如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。终端设备也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户装备(User Equipment)。
图3为本申请调度方法实施例的流程图,如图3所示,本实施例的方法例如可以应用于图1所示的通信系统。该调度方法可以包括:
步骤301、网络设备生成下行控制信息。
该下行控制信息用于调度L个数据信道,L个数据信道在时域上连续或非连续的时间单位(本申请中时间单位可以是时隙slot、迷你时隙mini-slot、符号或多个符号中的任意一个)上发送,L为大于1的整数。示例性的,下行控制信息可以是(Downlink control information,DCI),网络设备通过下行控制信息给终端设备分配数据信道的资源,该数据信道可以包括上行数据信道(例如PUSCH)、下行数据信道(例如PDSCH)或者侧行 链路数据信道。
步骤302、网络设备向终端设备发送下行控制信息。
网络设备将下行控制信息承载于控制信道(例如物理下行控制信道(Physical Downlink Control Channel,PDCCH))上传输给终端设备。本申请中,数据信道所在的频域带宽和控制信道所在的频域带宽相同或不同;或者,数据信道所在的频域带宽的子载波间隔和控制信道所在的频域带宽的子载波间隔相同或不同。频域带宽可以理解为载波,或者带宽部分(bandwidth part,BWP),或者资源池,数据信道所在的载波和控制信道所在的载波不同,可以成为跨载波调度。当数据信道所在频域带宽和控制信道所在的频域带宽相同时,并且数据信道所在的频域带宽的子载波间隔和控制信道所在的频域带宽的子载波间隔相同时,本申请的调度方法可以实现相同频域带宽、相同子载波间隔之间的多时隙调度;当数据信道所在频域带宽和控制信道所在的频域带宽相同时,并且数据信道所在的频域带宽的子载波间隔和控制信道所在的频域带宽的子载波间隔不同时,本申请的调度方法可以实现相同频域带宽、不同子载波之间的多时隙调度,可以解决控制信道所在频域带宽的子载波间隔较小,数据信道所在同一频域带宽的子载波间隔较大时,需要的控制信道数增加的问题,减小终端设备的处理时间;当数据信道所在频域带宽和控制信道所在的频域带宽不同时,并且数据信道所在的频域带宽的子载波间隔和控制信道所在的频域带宽的子载波间隔相同时,本申请的调度方法可以实现不同频域带宽、相同子载波之间的多时隙调度;当数据信道所在频域带宽和控制信道所在的频域带宽不同时,并且数据信道所在的频域带宽的子载波间隔和控制信道所在的频域带宽的子载波间隔不同时,本申请的调度方法可以实现不同频域带宽、不同子载波之间的多时隙调度,可以解决控制信道所在频域带宽的子载波间隔较小,数据信道所在同一频域带宽的子载波间隔较大时,需要的控制信道数增加的问题,减小终端设备的处理时间。
步骤303、终端设备根据下行控制信道确定L个数据信道。
本申请所述的L个数据信道中,当L大于设定阈值时,L个数据信道可以在时域上连续的时间单位上发送。L大于设定阈值表示L的值较大,此时L个数据信道在时域上连续的时间单位上发送,可以减小L个数据信道的发送时间,而网络设备通过下行控制信息一次调度L个数据信道,又可以节省控制信息开销,并且减小终端设备的处理时间;或者,当L大于设定阈值时,L个数据信道可以在时域上非连续的时间单位上发送。L大于设定阈值表示L的值较大,此时为了保证其他终端设备的服务质量,需要在L个数据信道之间给其他终端设备也分配数据信道资源,这样可以使多个终端设备的数据信道均有机会发送。
上述减小终端设备的处理时间可以是指减小终端设备对下行控制信息解码的时间,或者减小终端设备对下行控制信息解码的时间与数据的准备时间之和。假设在一个控制信息处理区间内,网络设备通过4个下行控制信息调度4个数据信道,每个下行控制信息调度1个数据信道,终端设备接收每个下行控制信息后会开始解析,但终端设备在一个控制信息处理区间内是有处理能力的限制的,因此无法处理过多的下行控制信息。而本申请中1个下行控制信息调度L个数据信道,终端设备只需要解码1个下行控制信息就可以得到L个数据信道的调度信息,因此可以减小终端设备的处理时间。
需要说明的是,本申请中的L个数据信道,每个数据信道中传输的数据可以是同一个 传输块(transport block,TB),也可以是不同的TB,对此不做具体限定。
另外,上述L个数据信道中从发送第一数据信道的时间单位到发送第三数据信道的时间单位最多包括N个时间单位,其中,第一数据信道为L个数据信道中在时域上最早的信道,第三数据信道为L个数据信道中在时域上最晚的信道。网络设备调度L个数据信道时只要确保从发送第一数据信道的时间单位到发送第三数据信道的时间单位总共包括的时间单位数量小于或等于N即可。即从发送第一数据信道到发送第三数据信道总共最多可以占用N个时间单位,如果N=L,则L个数据信道只能在时域上连续的时间单位上发送;如果N>L,则L个数据信道可以在时域上连续的时间单位上发送(此时L个数据信道总共占用L个时间单位),也可以在时域上非连续的时间单位上发送(此时L个数据信道总共占用的时间单位数量大于L且小于等于N)。
本申请中N的配置方式包括:以预定义的方式写在协议中,或者通过高层无线资源控制(Radio Resource Control,RRC)信令、媒体接入控制层(Medium Access Control,MAC)信令、SIB信息或者物理层信令指示,或者基于业务类型关联配置,或者基于业务信道的优先级关联配置,或者基于当前信道质量或信道占用的忙闲状态关联配置。例如,当前网络设备调度终端设备发送信息相对较少,并且终端设备半静态发送的信息也较少,可以理解为此时的信道处于较空闲的状态,则可以配置较小的N值,采用连续发送的方式。此时N个时间单位为L个数据信道发送的最大时间间隔,其不包括从下行控制信道的时域位置到第一数据信道的时间间隔。
可选的,本申请也可以设置L个数据信道中从接收下行控制信息的时间单位到发送第三数据信道的时间单位最多包括P个时间单位,P通过预定义的方式,或者高层信令配置。网络设备调度L个数据信道时只要确保从接收下行控制信息的时间单位到发送第三数据信道的时间单位总共包括的时间单位数量小于或等于P即可。即终端设备从接收下行控制信息到发送第三数据信道总共最多可以占用P个时间单位。
本申请中终端设备根据下行控制信息中携带的信息确定L个数据信道的时域位置,其中,下行控制信息中携带的信息可以包括以下几种情况:
一、下行控制信息包括第一信息,该第一信息用于指示第一数据信道的时域位置,第一数据信道为L个数据信道中在时域上最早的信道;当L个数据信道在时域上连续的时间单位上发送时,下行控制信息还包括第二信息,该第二信息用于指示L;当L个数据信道在时域上不连续的时间单位上发送时,下行控制信息还包括第二信息和第三信息,该第三信息用于指示L个数据信道中相邻信道之间间隔的时长,时长包括M个时间单位,M为正整数。
示例性的,假设一个下行控制信息最多可以调度8个数据信道,该数据信道可以是上行数据信道(例如PUSCH),下行数据信道(例如PDSCH),或者侧行链路数据信道。以下以下行数据信道,例如PDSCH为例进行说明。
当L个数据信道在时域上连续的时间单位上发送时,该下行控制信息可以包括以下信息:
(1)K0:表示上述第一信息,K0在指示第一数据信道的时域位置时,可以是该时域位置的时间单位编号,也可以是该时域位置相对于某个时间结点的时间单位偏移量,还可以是该时域位置在某个时间周期内的索引值。本申请对此不做具体限定。
(2)L:根据L占用的比特数可以确定最多可调度的PDSCH数量,例如L占用3个比特,就可以通过111表示8个PDSCH。例如,可以根据当前信道质量,或者信道占用的忙闲状态,终端设备侧的缓存量,通过下行控制信息调度的数据信道的优先级、可靠性、时延等服务质量(Quantity of Service,QoS)要求来决定L的数量,以及是否连续发送。L个数据信道在时域上连续的时间单位上发送有利于节省控制信息开销,减小终端设备的处理时间,另一方面连续发送可以减小时延,能够使本终端设备的数据在较短的时延内发送完。
当L个数据信道在时域上非连续的时间单位上发送时,该下行控制信息可以包括以下信息:
(1)K0:如上所述,此处不再赘述。
(2)L:如上所述,此处不再赘述。
(3)M:表示L个数据信道中相邻信道之间间隔的时长,例如M占用2个比特,就可以通过00表示间隔的时长包括1个时间单位,01表示间隔的时长包括2个时间单位,10表示间隔的时长包括3个时间单位,11表示间隔的时长包括4个时间单位;或者可以通过00表示间隔的时长包括0个时间单位,01表示间隔的时长包括1个时间单位,10表示间隔的时长包括2个时间单位,11表示间隔的时长包括3个时间单位。
该情况下可以实现L个数据信道在时域上均匀调度,或者连续调度,或者间隔相等时长调度。本申请更加灵活,能够满足不同的发送需求,一方面有利于节省控制信息开销,能否减小UE的处理时间,另一方面L个数据信道在时域上非连续的时间单位上发送能够让本终端设备和其他终端设备的下行数据有机会发送,通过相邻数据信道之间时间间隔M的配置能够灵活的发送各数据信道。
二、下行控制信息包括数据信道时域位置信息,该数据信道时域位置信息指示Q个字符,每个字符对应一个时间单位,Q≥L;当第一字符为第一值时,表示在第一字符对应的时间单位上发送L个数据信道的其中之一;当第一字符为第二值时,表示在第一字符对应的时间单位上不发送L个数据信道;第一字符为Q个字符中的任意一个。
上述数据信道时域位置信息可以包括:Q个字符;或者,第一索引值,第一索引值对应Q个字符。
示例性的,图4示例性的示出了Q个字符的一种示意图,如图4所示,该Q个字符为1001010001000011,为1的字符对应的时间单位上发送L个数据信道的其中之一,为0的字符对应的时间单位上不发送L个数据信道,如图4中被调度的6个数据信道(PDSCH1-6)。该示例中网络设备直接用Q个字符表示了调度的L个数据信道。
示例性的,表1示例性的示出了多个第一索引值和Q个字符之间的对应关系,该对应关系可以通过预定义的方式,例如在协议中定义一个表格,或者高层信令配置对应关系:或者,该对应关系可以为多种对应关系,即每种对应关系有多种不同的配置,每种对应关系对应一个表格,该多种对应关系可以通过预定义的方式,例如在协议中定义多个表格,通过隐式关联的方式确定每次使用表格,或者高层信令配置其中一个表格。
表1
第一索引值 | Q个字符 |
0 | 1001010001000011 |
1 | 1001001010100001 |
2 | 1010101001000011 |
3 | 1001010000110010 |
…… | …… |
下行控制信息中携带表1中的其中一个第一索引值。例如第一索引值为0,则表示L个数据信道占用的时间单位为第一索引值0对应的Q个字符1001010001000011中1对应的时间单位,即PDSCH1-6,可参见图4。
该情况下可以实现L个数据信道在时域上灵活调度,或者连续调度,或者以相同或不同间隔时长调度。采用此方式能够更加灵活的配置L个数据信道的时域位置,可以根据信道的发送需求,例如数据信道的优先级、可靠性、时延等服务质量(Quantity of Service,QoS)需求配置L个数据信道的时域位置。
三、下行控制信息包括第一信息和L-1个第四信息;第一信息用于指示第一数据信道的时域位置,第一数据信道为L个数据信道中在时域上最早的信道;L-1个第四信息和L-1个第二数据信道对应,L-1个第二数据信道为L个数据信道中除第一数据信道外的其他信道,第四信息用于指示对应的第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,或者,第四信息用于指示对应的第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,相邻第二数据信道在时域上位于对应的第二数据信道之前且与对应的第二数据信道相邻。
示例性的,下行控制信息包括:K0、1、2、3、4,其中,K0表示上述第一信息,K0在指示第一数据信道的时域位置时,可以是该时域位置的时间单位编号,也可以是该时域位置相对于某个时间点的时间单位偏移量(例如相对于下行控制信息的时域位置的时间单位偏移量),还可以是该时域位置在某个时间周期内的索引值。本申请对此不做具体限定。1表示在第一数据信道之后调度的第一个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第一个第二数据信道的时域位置为K0+1。2表示在第一数据信道之后调度的第二个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第二个第二数据信道的时域位置为K0+2。3表示在第一数据信道之后调度的第三个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第三个第二数据信道的时域位置为K0+3。4表示在第一数据信道之后调度的第四个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第四个第二数据信道的时域位置为K0+4。
示例性的,下行控制信息包括:K0、1、2、3、4,其中,K0表示上述第一信息。1表示在第一数据信道之后调度的第一个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第一个第二数据信道的时域位置为K0+1。2表示在第一数据信道之后调度的第二个第二数据信道的时域位置相较于第一个第二数据信道的时域位置的时间单位偏移量,即第二个第二数据信道的时域位置为K0+1+2。3表示在第一数据信道之后调度的第三个第二数据信道的时域位置相较于第二个第二数据信道的时域位置的时间单位偏移量,即第三个第二数据信道的时域位置为K0+1+2+3。4表示在第一数据信道之后调度的第四个第二数据信道的时域位置相较于第三个第二数据信道的时域位置的时间单位偏移量,即第四个第二数据信道的时域位置为K0+1+2+3+4。
该情况下可以实现L个数据信道在时域上灵活调度,或者连续调度,或者以相同或不同间隔时长调度。
四、下行控制信息包括第二索引值,第二索引值用于指示第一信息和L-1个第四信息;第一信息用于指示第一数据信道的时域位置,第一数据信道为L个数据信道中在时域上最早的信道;L-1个第四信息和L-1个第二数据信道对应,L-1个第二数据信道为L个数据信道中除第一数据信道外的其他信道,第四信息用于指示对应的第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,或者,第四信息用于指示对应的第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,相邻第二数据信道在时域上位于对应的第二数据信道之前且与对应的第二数据信道相邻。
示例性的,表2示例性的示出了多个第二索引值和第一信息以及L-1个第四信息之间的对应关系,该对应关系可以通过预定义的方式,例如在协议中定义一个表格,或者高层信令配置对应关系:或者,该对应关系可以为多种对应关系,即每种对应关系有多种不同的配置,每种对应关系对应一个表格,该多种对应关系可以通过预定义的方式,例如在协议中定义多个表格,通过隐式关联的方式确定每次使用表格,或者高层信令配置其中一个表格。
表2
第二索引值 | 第一信息 | 第四信息 | 第四信息 | 第四信息 | 第四信息 |
0 | K0 | 1 | 2 | 3 | 4 |
1 | K0 | 1 | 3 | 4 | 6 |
2 | K0 | 2 | 3 | 4 | 7 |
3 | K0 | 2 | 3 | 5 | 6 |
4 | K0 | 2 | 3 | 4 | 5 |
5 | K0 | 2 | 4 | 5 | 6 |
6 | K0 | 3 | 4 | 5 | 6 |
7 | K0 | 4 | 5 | 6 | 7 |
下行控制信息中携带表2中的其中一个第二索引值。例如2,则表示L个数据信道占用的时间单位为2对应的第一信息和L-1个第四信息分别对应的时间单位,其中,K0表示第一数据信道的时域位置,K0可以是该时域位置的时间单位编号,也可以是该时域位置相对于某个时间点的时间单位偏移量(例如相对于下行控制信息的时域位置的时间单位偏移量),还可以是该时域位置在某个时间周期内的索引值。本申请对此不做具体限定。2表示在第一数据信道之后调度的第一个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第一个第二数据信道的时域位置为K0+2。3表示在第一数据信道之后调度的第二个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第二个第二数据信道的时域位置为K0+3。4表示在第一数据信道之后调度的第三个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第三个第二数据信道的时域位置为K0+4。7表示在第一数据信道之后调度的第四个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第四个第二数据信道的时域位置为K0+7。
示例性的,表3示例性的示出了多个第二索引值和第一信息以及L-1个第四信息之间 的对应关系,该对应关系可以通过预定义的方式,或者高层信令配置:
表3
第二索引值 | 第一信息 | 第四信息 | 第四信息 | 第四信息 | 第四信息 |
0 | K0 | 1 | 2 | 1 | 2 |
1 | K0 | 1 | 1 | 1 | 3 |
2 | K0 | 2 | 1 | 2 | 1 |
3 | K0 | 2 | 2 | 1 | 1 |
下行控制信息中携带表2中的其中一个第二索引值。例如0,则表示L个数据信道占用的时间单位为0对应的第一信息和L-1个第四信息分别对应的时间单位,其中,K0表示上述第一信息。表3第三列的1表示在第一数据信道之后调度的第一个第二数据信道的时域位置相较于第一数据信道的时域位置的时间单位偏移量,即第一个第二数据信道的时域位置为K0+1。表3第四列的2表示在第一数据信道之后调度的第二个第二数据信道的时域位置相较于第一个第二数据信道的时域位置的时间单位偏移量,即第二个第二数据信道的时域位置为K0+1+2。表3第五列的1表示在第一数据信道之后调度的第三个第二数据信道的时域位置相较于第二个第二数据信道的时域位置的时间单位偏移量,即第三个第二数据信道的时域位置为K0+1+2+1。表3第六列的2表示在第一数据信道之后调度的第四个第二数据信道的时域位置相较于第三个第二数据信道的时域位置的时间单位偏移量,即第四个第二数据信道的时域位置为K0+1+2+1+2。
该情况下可以实现L个数据信道在时域上灵活调度,或者连续调度,或者以相同或不同间隔时长调度。采用此方式能够更加灵活的配置L个数据信道的时域位置,可以根据信道的发送需求,例如数据信道的优先级、可靠性、时延等服务质量(Quantity of Service,QoS)需求配置L个数据信道的时域位置。
本实施例,通过下行控制信息调度L个数据信道,一方面可以降低下行控制信息的信令开销,另一方面可以使数据信道的调度更加灵活,减小终端设备处理的时间。
图5为本申请HARQ反馈方法实施例的流程图,如图5所示,本实施例的方法例如可以应用于图1所示的通信系统。该HARQ反馈方法可以包括:
步骤501、网络设备向终端设备发送下行控制信息。
网络设备将下行控制信息承载于控制信道(例如PDCCH)上传输给终端设备。本申请中,数据信道所在的频域带宽和控制信道所在的频域带宽相同或不同;或者,数据信道所在的频域带宽的子载波间隔和控制信道所在的频域带宽的子载波间隔相同或不同。
步骤502、终端设备根据下行控制信息接收L个数据信道的数据。
终端设备可以采用图3所示方法实施例中的方法根据下行控制信息确定L个数据信道,进而在该L个数据信道上接收数据。
步骤503、终端设备在一个或多个控制资源反馈L个数据信道的数据对应的HARQ信息。
终端设备根据在该L个数据信道上接收数据的解析结果,向网络设备反馈HARQ信息。通常L个数据信道的数据对应L个HARQ信息,本申请中终端设备为了提高HARQ反馈效率,可以在一个或多个控制资源上反馈该L个HARQ信息,而一个或多个控制资源的数量小于L,即终端设备不需要针对每一个数据信道的数据占用一个控制资源来反馈 HARQ信息。
本申请中,若L个数据信道在时域上连续或非连续的时间单位上发送,则终端设备在一个控制资源或者N个控制资源反馈HARQ信息,N为大于1的整数且N小于L,N的值通过预先定义、物理层信令、高层信令配置或者与数据信道的第一特征关联的方式配置,每个控制资源承载M个数据信道的数据对应的HARQ信息,M的值与L和N相关。
上述高层信令配置包括RRC信令、MAC信令或SIB信息中的至少一种,物理层信令包括DCI,数据信道的第一特征包括数据信道的优先级,数据信道内容的优先级,数据信道的时延需求,数据信道的可靠性需求或者其他QoS相关的需求或者数据信道发送期间的信道质量或信道占用的忙闲状态关联配置。例如,数据信道的时延需求较高,也就是说需要在短时间内完成发送及反馈,则配置相对较大的N值,使得终端设备快速反馈HARQ信息。
上述M的值与L和N相关例如可以包括以下几种方法:方法1、根据数据信道的第一特征,采用终端设备实现的方式在N个控制资源承载L个数据信道的数据对应的HARQ信息,每个控制资源承载对应于数据信道的数据的HARQ信息数M为可变的,灵活调整M的数量。方法2、数据信道的数量L与控制资源数N的比值向下取值,即
方法3、数据信道的数量L与控制资源数N的比值向上取值,即
前述三种情况下在时域上最晚的控制资源承载的数据信道的数据对应的HARQ信息数可能会出现大于或小于M的情况,例如,8个数据信道,根据时延需求,配置3个控制资源进行反馈,若采用方法2,得出M为2,则3个控制资源承载的HARQ信息数分别为2、2、4,若采用方法3,得出M为3,则3个控制资源承载的HARQ信息数分别为3、3、2。
本申请中控制资源包括上行控制信道资源或者侧行链路反馈信道资源,用于承载数据对应的HARQ信息。
本申请中,若L个数据信道在时域上非连续的时间单位上发送,则终端设备在一个控制资源或者N个控制资源反馈HARQ信息,N为大于1的整数且N小于L,N与L个数据信道的时域位置相关。即L个数据信道中的至少两个数据信道之间间隔至少一个时间单位,例如,8个数据信道中,第3和4个数据信道之间间隔1个时间单位,第5和6个数据信道之间间隔2个时间单位;或者,8个数据信道中,每两个相邻数据信道之间均间隔一个或多个时间单位。
上述N与L个数据信道的时域位置相关,L个数据信道中的至少两个数据信道之间间隔至少一个时间单位,示例性的可以包括以下几种方法:方法1、L个数据信道中相邻的数据信道在同一个控制资源反馈HARQ信息。方法2、定义时间间隔阈值N
same,可以通过预定义的方式或高层信令配置,配置方法不再赘述,L个数据信道中相邻两个信道之间间隔的时间单位若小于或等于N
same,则在同一个控制资源反馈HARQ信息。例如,图6示例性的示出了一个HARQ信息反馈的示意图例,如图6所示,N
same配置为1,PDSCH1与PDSCH2之间间隔等于N
same,对应HARQ1和HARQ2,则在第一个个控制资源上反馈HARQ1-2,同理PDSCH2与PDSCH3之间的间隔为2大于N
same,在第二个控制资源上反馈HARQ3-4,PDSCH4和PDSCH5之间的间隔为3大于N
same,在第三个控制资源上反馈HARQ5。
本申请中,终端设备在每个控制资源反馈时间长度内的数据信道的数据对应的HARQ 信息,时间长度通过物理层信令配置、高层信令配置或者预先定义的方式配置。高层信令配置包括RRC信令、MAC信令、SIB信息,即如果预先配置了时间长度,那么终端设备在反馈HARQ信息时,可以以时间长度创建时间窗,终端设备每次针对窗口内的数据信道反馈其上发送的数据的HARQ信息。本申请中时间窗的时间长度可以是多个时间单位,该时间窗生效的起始位置可以是L个数据信道在时域上最早的信道所在的时间单位的起始符号,时间长度对应的时间单位内的数据信道对应的HARQ信息承载在一个控制资源;若L个数据信道占用的总时间单位大于时间窗的时间长度,则第一个时间窗结束的位置作为下一个时间窗的起始位置。例如,图7a-7c示例性的示出了另一个HARQ信息反馈的示意图,如图7所示,配置时间长度为4个时间单位的时间窗,则PDSCH1-4位于第一个时间窗内,在第一个控制资源上反馈HARQ1-4,PDSCH5-8位于第二个时间窗内,在第二个控制资源上反馈HARQ5-8。如图7b所示,配置时间长度为4个时间单位的时间窗,则PDSCH1-3位于第一个时间窗内,在第一个控制资源上反馈HARQ1-3,PDSCH4-5位于第二个时间窗内,在第二个控制资源上反馈HARQ4-5,PDSCH6-8位于第三个时间窗内,在第三个控制资源上反馈HARQ6-8。如图7c所示,配置时间长度为5个时间单位的时间窗,则PDSCH1-4位于第一个时间窗内,在第一个控制资源上反馈HARQ1-4,PDSCH5-6位于第二个时间窗内,在第二个控制资源上反馈HARQ5-6,PDSCH7-8位于第三个时间窗内,在第三个控制资源上反馈HARQ7-8。
以下通过具体的实施例说明终端设备的HARQ反馈情况:假设下行控制信息调度8个数据信道PDSCH1-8,HARQ1-8和PDSCH1-8相对应。
一、L个数据信道在时域上连续的时间单位上发送,终端设备在一个控制资源反馈L个数据信道的数据对应的HARQ信息
图8示例性的示出了又一个HARQ信息反馈的示意图,如图8所示,终端设备在1个控制资源上反馈8个HARQ信息(HARQ1-8)。
二、L个数据信道在时域上连续的时间单位上发送,终端设备在两个控制资源反馈L个数据信道的数据对应的HARQ信息
图9示例性的示出了第四个HARQ信息反馈的示意图,如图9所示,终端设备在2个控制资源上反馈8个HARQ信息,第一个控制资源上反馈HARQ1-4,第二个控制资源上反馈HARQ5-8。
需要说明的是,终端设备在该情况下,还可以采用其他数量(例如,3个、4个等)的控制资源反馈8个数据信道的数据对应的HARQ信息,例如,第一个控制资源上反馈HARQ1-2,第二个控制资源上反馈HARQ3-4,第三个控制资源上反馈HARQ5-6,第四个控制资源上反馈HARQ7-8;或者,第一个控制资源上反馈HARQ1-3,第二个控制资源上反馈HARQ4-5,第三个控制资源上反馈HARQ6-8。
三、L个数据信道在时域上非连续的时间单位上发送,终端设备在一个控制资源反馈L个数据信道的数据对应的HARQ信息
图10示例性的示出了第五个HARQ信息反馈的示意图,如图10所示,PDSCH4和PDSCH5之间间隔2个时间单位,终端设备在1个控制资源上反馈8个HARQ信息(HARQ1-8)。
四、L个数据信道在时域上非连续的时间单位上发送,终端设备在两个控制资源反馈 L个数据信道的数据对应的HARQ信息
图11示例性的示出了第六个HARQ信息反馈的示意图,如图11所示,PDSCH4和PDSCH5之间间隔2个时间单位,终端设备在2个控制资源上反馈8个HARQ信息,第一个控制资源上反馈HARQ1-4,第二个控制资源上反馈HARQ5-8。
图12示例性的示出了第七个HARQ信息反馈的示意图,如图12所示,PDSCH1和PDSCH2之间间隔1个时间单位,PDSCH4和PDSCH5之间间2个时间单位,PDSCH6和PDSCH7之间间2个时间单位,终端设备在1个控制资源上反馈8个HARQ信息。
图13示例性的示出了第八个HARQ信息反馈的示意图,如图13所示,PDSCH1和PDSCH2之间间隔1个时间单位,PDSCH4和PDSCH5之间间2个时间单位,PDSCH6和PDSCH7之间间2个时间单位,终端设备在4个控制资源上反馈8个HARQ信息,第一个控制资源上反馈HARQ1,第二个控制资源上反馈HARQ2-4,第三个控制资源上反馈HARQ5-6,第四个控制资源上反馈HARQ7-8。
需要说明的是,上述实施例示例性的示出了终端设备反馈HARQ信息的方式,但本申请并不仅限定于此,终端设备采用的控制资源的数量可以通过预先定义、高层信令配置或者与数据信道的第一特征关联的方式配置,每个控制资源承载M个数据信道的数据对应的HARQ信息,M的值与L和控制资源的数量相关。
本申请终端设备在一个控制资源或者N个控制资源反馈L个数据信道的数据的HARQ信息,可以保证HARQ反馈的时延。
图14为本申请通信装置实施例的结构示意图,如图14所示,本实施例的装置可以应用于上述实施例中的终端设备。该通信装置可以包括:接收模块1401、处理模块1402和发送模块1403。
在一种可能的实现方式中,所述接收模块1401,用于接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为大于1的整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;所述处理模块1402,用于根据所述下行控制信道确定所述L个数据信道。
在一种可能的实现方式中,所述下行控制信息包括第一信息,所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;当所述L个数据信道在时域上连续的时间单位上发送时,所述下行控制信息还包括第二信息,所述第二信息用于指示L;当所述L个数据信道在时域上不连续的时间单位上发送时,所述下行控制信息还包括所述第二信息和第三信息,所述第三信息用于指示所述L个数据信道中相邻信道之间间隔的时长,所述时长包括M个时间单位,M为正整数。
在一种可能的实现方式中,所述下行控制信息包括数据信道时域位置信息,所述数据信道时域位置信息指示Q个字符,每个所述字符对应一个时间单位,Q≥L;当第一字符为第一值时,表示在所述第一字符对应的时间单位上发送所述L个数据信道的其中之一;当所述第一字符为第二值时,表示在所述第一字符对应的时间单位上不发送所述L个数据信道;所述第一字符为所述Q个字符中的任意一个。
在一种可能的实现方式中,所述数据信道时域位置信息包括:所述Q个字符;或者,第一索引值,所述第一索引值对应所述Q个字符。
在一种可能的实现方式中,所述下行控制信息包括第一信息和L-1个第四信息;所述 第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
在一种可能的实现方式中,所述下行控制信息包括第二索引值,所述第二索引值用于指示第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
在一种可能的实现方式中,当L大于设定阈值时,所述L个数据信道在时域上连续的时间单位上发送;或者,当L大于设定阈值时,所述L个数据信道在时域上非连续的时间单位上发送。
在一种可能的实现方式中,第一信道承载所述下行控制信息;所述第一信道所在的频域带宽和所述数据信道所在的频域带宽相同或不同;或者,所述第一信道所在的频域带宽的子载波间隔和所述数据信道所在的频域带宽的子载波间隔相同或不同。
在一种可能的实现方式中,从发送第一数据信道的时间单位到发送第三数据信道的时间单位最多包括N个时间单位,N通过预定义的方式,或者高层信令配置,所述第一数据信道为所述L个数据信道中在时域上最早的信道,所述第三数据信道为所述L个数据信道中在时域上最晚的信道。
在一种可能的实现方式中,所述接收模块1401,用于接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为正整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;处理模块1402,用于根据所述下行控制信息接收L个数据信道的数据;发送模块1403,用于在一个或多个控制资源反馈所述L个数据信道的数据对应的HARQ信息,所述一个或多个控制资源用于承载所述HARQ信息,且所述一个或多个控制资源的数量小于L。
在一种可能的实现方式中,若所述L个数据信道在时域上连续或非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N的值通过预先定义、高层信令配置或者与数据信道的第一特征关联的方式配置,每个所述控制资源承载M个数据信道的数据对应的HARQ信息,M的值与L和N相关。
在一种可能的实现方式中,若所述L个数据信道在时域上非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资 源,N为大于1的整数且N小于L,N与所述L个数据信道的时域位置相关。
在一种可能的实现方式中,在每个所述控制资源反馈时间长度内的数据信道的数据对应的HARQ信息,所述时间长度通过物理层信令配置、高层信令配置或者预先定义的方式配置。
本实施例的装置,可以用于执行图3-11任一所示方法实施例的技术方案,其实现原理和技术效果类似,此处不再赘述。
图15为本申请提供的终端设备1500的示意性结构图。如图15所示,终端设备1500包括处理器1501和收发器1502。
可选地,终端设备1500还包括存储器1503。其中,处理器1501、收发器1502和存储器1503之间可以通过内部连接通路互相通信,传递控制信号和/或数据信号。
其中,存储器1503用于存储计算机程序。处理器1501用于执行存储器1503中存储的计算机程序。
可选地,存储器1503也可以集成在处理器1501中,或者独立于处理器1501。
可选地,终端设备1500还可以包括天线1504,用于将收发器1502输出的信号发射出去。或者,收发器1502通过天线接收信号。
可选地,终端设备1500还可以包括电源1505,用于给终端设备中的各种器件或电路提供电源。
除此之外,为了使得终端设备的功能更加完善,终端设备1500还可以包括输入单元1506、显示单元1507(也可以认为是输出单元)、音频电路1508、摄像头1509和传感器1510等中的一个或多个。音频电路还可以包括扬声器15081、麦克风15082等,不再赘述。
图16为本申请提供的网络设备1600的示意性结构图。如图16所示,网络设备1600包括天线1601、射频装置1602、基带装置1603。天线1601与射频装置1602连接。在上行方向上,射频装置1602通过天线1601接收来自终端设备的信号,并将接收到的信号发送给基带装置1603进行处理。在下行方向上,基带装置1603生成需要发送给终端设备的信号,并将生成的信号发送给射频装置1602。射频装置1602通过天线1601将该信号发射出去。
基带装置1603可以包括一个或多个处理单元16031。处理单元16031具体可以为处理器。
此外,基带装置1603还可以包括一个或多个存储单元16032以及一个或多个通信接口16033。存储单元16032用于存储计算机程序和/或数据。通信接口16033用于与射频装置1602交互信息。存储单元16032具体可以为存储器,通信接口16033可以为输入输出接口或者收发电路。
可选地,存储单元16032可以是和处理单元16031处于同一芯片上的存储单元,即片内存储单元,也可以是与处理单元16031处于不同芯片上的存储单元,即片外存储单元。本申请对此不作限定。
在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP)、特定应用集成电路(application-specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或其他可编程逻辑器件、分立门或者 晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。本申请实施例公开的方法的步骤可以直接体现为硬件编码处理器执行完成,或者用编码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
上述各实施例中提及的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机 软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (29)
- 一种调度方法,其特征在于,包括:接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为大于1的整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;根据所述下行控制信道确定所述L个数据信道。
- 根据权利要求1所述的方法,其特征在于,所述下行控制信息包括第一信息,所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;当所述L个数据信道在时域上连续的时间单位上发送时,所述下行控制信息还包括第二信息,所述第二信息用于指示L;当所述L个数据信道在时域上不连续的时间单位上发送时,所述下行控制信息还包括所述第二信息和第三信息,所述第三信息用于指示所述L个数据信道中相邻信道之间间隔的时长,所述时长包括M个时间单位,M为正整数。
- 根据权利要求1所述的方法,其特征在于,所述下行控制信息包括数据信道时域位置信息,所述数据信道时域位置信息指示Q个字符,每个所述字符对应一个时间单位,Q≥L;当第一字符为第一值时,表示在所述第一字符对应的时间单位上发送所述L个数据信道的其中之一;当所述第一字符为第二值时,表示在所述第一字符对应的时间单位上不发送所述L个数据信道;所述第一字符为所述Q个字符中的任意一个。
- 根据权利要求3所述的方法,其特征在于,所述数据信道时域位置信息包括:所述Q个字符;或者,第一索引值,所述第一索引值对应所述Q个字符。
- 根据权利要求1所述的方法,其特征在于,所述下行控制信息包括第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
- 根据权利要求1所述的方法,其特征在于,所述下行控制信息包括第二索引值,所述第二索引值用于指示第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所 述对应的所述第二数据信道相邻。
- 根据权利要求1-6中任一项所述的方法,其特征在于,当L大于设定阈值时,所述L个数据信道在时域上连续的时间单位上发送;或者,当L大于设定阈值时,所述L个数据信道在时域上非连续的时间单位上发送。
- 根据权利要求1-7中任一项所述的方法,其特征在于,第一信道承载所述下行控制信息;所述第一信道所在的频域带宽和所述数据信道所在的频域带宽相同或不同;或者,所述第一信道所在的频域带宽的子载波间隔和所述数据信道所在的频域带宽的子载波间隔相同或不同。
- 根据权利要求1-8中任一项所述的方法,其特征在于,从发送第一数据信道的时间单位到发送第三数据信道的时间单位最多包括N个时间单位,N通过预定义的方式,或者高层信令配置,所述第一数据信道为所述L个数据信道中在时域上最早的信道,所述第三数据信道为所述L个数据信道中在时域上最晚的信道。
- 一种HARQ反馈方法,其特征在于,包括:接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为正整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;根据所述下行控制信息接收L个数据信道的数据;在一个或多个控制资源反馈所述L个数据信道的数据对应的HARQ信息,所述一个或多个控制资源用于承载所述HARQ信息,且所述一个或多个控制资源的数量小于L。
- 根据权利要求10所述的方法,其特征在于,若所述L个数据信道在时域上连续或非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N的值通过预先定义、高层信令配置或者与数据信道的第一特征关联的方式配置,每个所述控制资源承载M个数据信道的数据对应的HARQ信息,M的值与L和N相关。
- 根据权利要求10所述的方法,其特征在于,若所述L个数据信道在时域上非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N与所述L个数据信道的时域位置相关。
- 根据权利要求10-12中任一项所述的方法,其特征在于,在每个所述控制资源反馈时间长度内的数据信道的数据对应的HARQ信息,所述时间长度通过物理层信令配置、高层信令配置或者预先定义的方式配置。
- 一种通信装置,其特征在于,包括:接收模块,用于接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为大于1的整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;处理模块,用于根据所述下行控制信道确定所述L个数据信道。
- 根据权利要求14所述的装置,其特征在于,所述下行控制信息包括第一信息,所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;当所述L个数据信道在时域上连续的时间单位上发送时,所述下行控制信息还包括第二信息,所述第二信息用于指示L;当所述L个数据信道在时域上不连续的时间单位上发送时,所述下行控制信息还包括所述第二信息和第三信息,所述第三 信息用于指示所述L个数据信道中相邻信道之间间隔的时长,所述时长包括M个时间单位,M为正整数。
- 根据权利要求14所述的装置,其特征在于,所述下行控制信息包括数据信道时域位置信息,所述数据信道时域位置信息指示Q个字符,每个所述字符对应一个时间单位,Q≥L;当第一字符为第一值时,表示在所述第一字符对应的时间单位上发送所述L个数据信道的其中之一;当所述第一字符为第二值时,表示在所述第一字符对应的时间单位上不发送所述L个数据信道;所述第一字符为所述Q个字符中的任意一个。
- 根据权利要求16所述的装置,其特征在于,所述数据信道时域位置信息包括:所述Q个字符;或者,第一索引值,所述第一索引值对应所述Q个字符。
- 根据权利要求14所述的装置,其特征在于,所述下行控制信息包括第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
- 根据权利要求14所述的装置,其特征在于,所述下行控制信息包括第二索引值,所述第二索引值用于指示第一信息和L-1个第四信息;所述第一信息用于指示第一数据信道的时域位置,所述第一数据信道为所述L个数据信道中在时域上最早的信道;所述L-1个第四信息和L-1个第二数据信道对应,所述L-1个第二数据信道为所述L个数据信道中除所述第一数据信道外的其他信道,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于所述第一数据信道的时域位置的时间单位偏移量,或者,所述第四信息用于指示对应的所述第二数据信道的时域位置相较于相邻第二数据信道的时域位置的时间单位偏移量,所述相邻第二数据信道在时域上位于所述对应的所述第二数据信道之前且与所述对应的所述第二数据信道相邻。
- 根据权利要求14-19中任一项所述的装置,其特征在于,当L大于设定阈值时,所述L个数据信道在时域上连续的时间单位上发送;或者,当L大于设定阈值时,所述L个数据信道在时域上非连续的时间单位上发送。
- 根据权利要求14-20中任一项所述的装置,其特征在于,第一信道承载所述下行控制信息;所述第一信道所在的频域带宽和所述数据信道所在的频域带宽相同或不同;或者,所述第一信道所在的频域带宽的子载波间隔和所述数据信道所在的频域带宽的子载波间隔相同或不同。
- 根据权利要求14-21中任一项所述的装置,其特征在于,从发送第一数据信道的时间单位到发送第三数据信道的时间单位最多包括N个时间单位,N通过预定义的方式,或者高层信令配置,所述第一数据信道为所述L个数据信道中在时域上最早的信道,所述第三数据信道为所述L个数据信道中在时域上最晚的信道。
- 一种通信装置,其特征在于,包括:接收模块,用于接收下行控制信息,所述下行控制信息用于调度L个数据信道,L为 正整数,所述L个数据信道在时域上连续或非连续的时间单位上发送;处理模块,用于根据所述下行控制信息接收L个数据信道的数据;发送模块,用于在一个或多个控制资源反馈所述L个数据信道的数据对应的HARQ信息,所述一个或多个控制资源用于承载所述HARQ信息,且所述一个或多个控制资源的数量小于L。
- 根据权利要求23所述的装置,其特征在于,若所述L个数据信道在时域上连续或非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N的值通过预先定义、高层信令配置或者与数据信道的第一特征关联的方式配置,每个所述控制资源承载M个数据信道的数据对应的HARQ信息,M的值与L和N相关。
- 根据权利要求23所述的装置,其特征在于,若所述L个数据信道在时域上非连续的时间单位上发送,则所述一个或多个控制资源为一个控制资源,或者所述一个或多个控制资源为N个控制资源,N为大于1的整数且N小于L,N与所述L个数据信道的时域位置相关。
- 根据权利要求23-25中任一项所述的装置,其特征在于,在每个所述控制资源反馈时间长度内的数据信道的数据对应的HARQ信息,所述时间长度通过物理层信令配置、高层信令配置或者预先定义的方式配置。
- 一种终端设备,其特征在于,包括:一个或多个处理器;存储器,用于存储一个或多个程序;当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现如权利要求1-13中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,包括计算机程序,所述计算机程序在计算机上被执行时,使得所述计算机执行权利要求1-13中任一项所述的方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行权利要求1-13中任一项所述的方法。
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