CN116133042A - Transmission control method, device, terminal and network side equipment - Google Patents
Transmission control method, device, terminal and network side equipment Download PDFInfo
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- CN116133042A CN116133042A CN202111350174.7A CN202111350174A CN116133042A CN 116133042 A CN116133042 A CN 116133042A CN 202111350174 A CN202111350174 A CN 202111350174A CN 116133042 A CN116133042 A CN 116133042A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
Abstract
The invention provides a transmission control method, a transmission control device, a terminal and network side equipment, and relates to the technical field of communication. The method comprises the following steps: receiving two downlink channels; and selecting one of the uplink control channel transmission modes from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels. The scheme of the invention solves the problem that the PUCCH repeated transmission has larger resource waste in the prior art.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a transmission control method, a device, a terminal, and a network side device.
Background
In order to improve channel reliability, a repeated transmission (repetition) enhancement scheme of a physical downlink control channel (Physical Downlink Control Channel, PDCCH), a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), and a physical uplink control channel (Physical Uplink Control Channel, PUCCH) is proposed in a multiple transmission reception point (Multi Transmit Receive Point, multi-TRP) scenario. Among them, PDSCH repetition scheme supports space division multiplexing (Spatial Division Multiplex, SDM), frequency division multiplexing (Frequency Division Multiplex, FDM), intra-slot (intra-slot) time division multiplexing (Time Division Multiplex, TDM), inter-slot (inter-slot) TDM transmission. The PDCCH repetition scheme supports FDM, TDM transmissions. For the PUCCH repetition transmission scheme, 2 spatial-relation information (spatial-relation-info) or 2 sets of Power control (Power control) parameters may be configured for a portion of PUCCH resources (resource), where each spatial-relation-info/Power control parameter corresponds to one of 2 TRPs, respectively; another part of PUCCH resource is configured with 1 spatial-relation-info/power control parameter corresponding to a certain TRP.
If the PUCCH resource indicated by the PUCCH resource indication field (PUCCH Resource Indicator field, PRI field) in the downlink control information (Downlink Control Information, DCI) is configured with 2 spatial-relation-info/power control parameters, then it indicates that the UE may perform Multi-TRP repetition (Multi-TRP repetition) transmission on this PUCCH resource; otherwise, the UE makes a single-TRP (TRP) transmission.
In order to support dynamic switching of Multi-TRP and single-TRP transmission of a UE, 2 sets of PUCCH resources need to be configured for the UE, respectively for 2 transmission schemes (single-TRP/Multi-TRP), which may have a large waste of PUCCH resources, and also limit flexibility of PUCCH resource configuration.
Disclosure of Invention
The invention aims to provide a transmission control method, a transmission control device, a terminal and network side equipment, which solve the problem that PUCCH repeated transmission has larger resource waste in the prior art.
To achieve the above object, an embodiment of the present invention provides a transmission control method, applied to a terminal, including:
receiving two downlink channels;
and selecting one of the uplink control channel repeated transmission mode and the uplink control channel single transmission mode to send according to the reception of the two downlink channels.
To achieve the above object, an embodiment of the present invention provides a transmission control method, applied to a network side device, including:
transmitting two downlink channels;
and receiving an uplink control channel, wherein the uplink control channel is transmitted by a terminal in an uplink control channel repeated transmission mode or an uplink control channel single transmission mode, and the terminal selects one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
To achieve the above object, an embodiment of the present invention provides a transmission control apparatus, applied to a terminal, including:
the receiving module is used for receiving the two downlink channels;
and the transmission module is used for selecting one of an uplink control channel transmission mode from an uplink control channel repeated transmission mode and an uplink control channel single transmission mode according to the reception of the two downlink channels.
To achieve the above object, an embodiment of the present invention provides a transmission control apparatus, applied to a network side device, including:
a sending module, configured to send two downlink channels;
the first receiving module is configured to receive an uplink control channel, where the uplink control channel is sent by a terminal in a manner of repeating multiple transmissions of the uplink control channel or a manner of single transmission of the uplink control channel, and the terminal selects one uplink control channel transmission manner from the manner of repeating multiple transmissions of the uplink control channel and the manner of single transmission of the uplink control channel according to the reception of the two downlink channels.
To achieve the above object, an embodiment of the present invention provides a terminal including a processor and a transceiver, wherein,
the transceiver is used for receiving two downlink channels;
the processor is used for selecting one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
To achieve the above object, an embodiment of the present invention provides a terminal including a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the processor, when executing the program or instructions, implements the steps in the transmission control method on the terminal side as described above.
To achieve the above object, an embodiment of the present invention provides a network side device, including a processor and a transceiver, wherein,
the transceiver is used for transmitting two downlink channels; and
and receiving an uplink control channel, wherein the uplink control channel is transmitted by a terminal in an uplink control channel repeated transmission mode or an uplink control channel single transmission mode, and the terminal selects one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
To achieve the above object, an embodiment of the present invention provides a network-side device, including a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; the processor, when executing the program or instructions, implements the steps in the transmission control method of the network side device as described above.
To achieve the above object, an embodiment of the present invention provides a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps in the transmission control method of a terminal or network side device as described above.
The technical scheme of the invention has the following beneficial effects:
according to the embodiment of the invention, by receiving two downlink channels and selecting one of a plurality of uplink control channel transmission modes and a single uplink control channel transmission mode according to the reception of the two downlink channels, the uplink transmission can be flexibly performed by selecting a proper mode from a plurality of TRP repeated transmission modes and a single TRP repeated transmission mode based on channel quality, so that the problems of low transmission reliability and resource waste caused by adopting the TRP for transmission when the channel quality of a certain TRP is poor are solved.
Drawings
Fig. 1 is a flow chart of a transmission control method at a terminal side according to an embodiment of the present invention;
fig. 2 is a flow chart of a transmission method of a plurality of uplink control channel transmission modes according to an embodiment of the present invention;
fig. 3 is a flow chart of a transmission method of a single uplink control channel transmission mode according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a transmission control device at a terminal side according to an embodiment of the present invention;
fig. 5 is a block diagram of a terminal according to an embodiment of the present invention;
fig. 6 is a flow chart of a transmission control method of a network side device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a transmission control device of a network side device according to an embodiment of the present invention;
fig. 8 is a block diagram of a network device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
In addition, the terms "system" and "network" are often used interchangeably herein.
In the examples provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.
In the conventional manner, the switching of the PUCCH transmission scheme is determined by flexible indication of the PRI field, i.e., the transmission scheme of the PUCCH is actually decided by the base station. If the UE is instructed to perform Multi-TRP repetition transmission on the instructed PUCCH resource, however, as the channel is changed, the channel of a certain TRP may be rapidly deteriorated and is not suitable for Multi-TRP transmission, compared with single-TRP transmission, multi-TRP transmission may cause significant performance loss of PUCCH, and at this time, the UE cannot flexibly switch transmission schemes, resulting in significant transmission performance loss.
As shown in fig. 1, a transmission control method according to an embodiment of the present invention is applied to a terminal, and includes, but is not limited to, the following steps:
step 11: two downlink channels are received.
Wherein, the two downlink channels are respectively from two TRPs, the two TRPs respectively correspond to different transmission configuration indication TCI states, and the different TCI states correspond to respective power control parameter sets. In particular, the two TRPs may be indicated by spatial-relation information (spatial-relation-info) or a set of power control parameters, i.e. each TRP corresponds to a respective spatial-relation-info or power control parameter set, and the spatial-relation-info or power control parameter sets of the two TRPs are different. The downlink channels include, but are not limited to: PDCCH or PDSCH. For example, two TRPs are TRP0 and TRP1, and the terminal receives PDCCH0 or PDSCH0 from TRP0 and PDCCH1 and PDSCH1 from TRP 1.
Step 12: and selecting one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
Wherein the uplink channel is configured with two TRPs, including but not limited to: PUCCH or physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). For example, the base station indicates to the terminal that a certain PUCCH resource is configured with 2 spatial-relay-info/power control parameter sets { spatial-relay-info#0, spatial-relay-info#1 }/{ power control parameter set #0, power control parameter set #1}, respectively. The UE may adaptively determine a transmission scheme of the uplink channel when the terminal is allowed to adaptively select a multi-TRP repetition transmission scheme and a single TRP repetition transmission scheme according to a channel quality of the downlink channel. Specifically, the channel quality of two TRPs may be determined according to the channel quality of two downlink channels, so that the multi-TRP repeated transmission scheme or the single TRP repeated transmission scheme may be selected to transmit the uplink channel based on the channel quality of the TRPs. Specifically, the uplink and downlink channels have channel reciprocity, the channel quality of the downlink channel is good, the channel quality of the uplink channel in the same direction can be judged to be good, and the terminal can adaptively select a multi-TRP repeated transmission mode or a single-TRP repeated transmission mode to transmit the uplink channel according to the channel quality of the downlink channel.
Optionally, the base station may further instruct the terminal to adaptively select the multi-TRP repeated transmission mode and the single TRP repeated transmission mode based on the channel quality of the downlink channel. For example by RRC signaling, or by a media intervention control unit (Medium Access Control Control Element, MAC CE), or by DCI.
Optionally, the terminal may report to the base station which transmission mode the terminal selects is a multi-TRP repeated transmission mode or a single TRP repeated transmission mode. For example, by Physical Uplink Shared Channel (PUSCH) indication, or by media intervention control element (Medium Access Control Control Element, MAC CE) indication, or Physical Uplink Control Channel (PUCCH) reporting.
Optionally, step 12 includes: and when the channel quality of the two downlink channels is close, selecting an uplink control channel repeated transmission mode from an uplink control channel repeated transmission mode and an uplink control channel single transmission mode. For example, when the difference value of the channel quality of the two downlink channels is smaller than a first preset threshold value, selecting the uplink control channel repeat multiple transmission mode to send a plurality of uplink control channels, or when the ratio of the channel quality of the two downlink channels is within a first preset range, selecting the uplink control channel repeat multiple transmission mode to send a plurality of uplink control channels. Optionally, step 12 includes: and when the channel quality of the two downlink channels is close, selecting to transmit the uplink channels by adopting a multi-TRP repeated transmission mode. For example, when the difference of the channel qualities of the two downlink channels is smaller than a first preset threshold, the uplink channel is selected to be sent by adopting a multi-TRP repeated transmission mode, or when the ratio of the channel qualities of the two downlink channels is within a first preset range, the uplink channel is selected to be sent by adopting the multi-TRP repeated transmission mode.
The channel quality may be represented by a reference signal received power (Reference Signal Received Power, RSRP) or a reference signal received quality (Reference Signal Received Quality, RSRQ), among others. The first predetermined threshold may be a protocol engagement or a base station indication. The first preset range is a range close to 1, and if the ratio of the channel quality of the two downlink channels is close to 1, the channel quality of the two downlink channels is close.
Optionally, step 12 includes: and when the channel quality of the two downlink channels is not close, selecting an uplink control channel single transmission mode from the uplink control channel repeated multiple transmission mode and the uplink control channel single transmission mode. For example, when the difference between the channel quality of the two downlink channels is greater than or equal to a second preset threshold, selecting an uplink control channel single transmission mode to transmit an uplink control channel; or when the ratio of the channel quality of the two downlink channels is not in the second preset range, selecting an uplink control channel single transmission mode to send one uplink control channel. Optionally, step 12 includes: and when the channel quality of the two downlink channels is not close, selecting to transmit the uplink channels by adopting a single TRP repeated transmission mode. For example, when the difference between the channel quality of the two downlink channels is greater than or equal to a second preset threshold, selecting to transmit the uplink channel by adopting a single TRP repeated transmission mode; or when the ratio of the channel quality of the two downlink channels is not in the second preset range, selecting to transmit the uplink channel by adopting a single TRP repeated transmission mode.
The second preset threshold may be a range close to 1, where the second preset threshold may be a protocol contract or a base station indication, and if the ratio of the channel qualities of the two downlink channels is not close to 1, the channel qualities of the two downlink channels are close. Further, the second preset threshold may be the same as or different from the first preset threshold, and the first preset range may be the same as or different from the second preset range.
Further, selecting to transmit the uplink control channel by adopting the single uplink control channel transmission mode includes: and transmitting an uplink control channel on one channel with good quality in the two channels. Optionally, selecting a TRP with good channel quality from the two TRPs as a target TRP of a single TRP repeated transmission mode; and transmitting the uplink channel through the target TRP. When the channel quality of two downlink channels is not close, the TRP with good channel quality can be selected from the two TRPs to transmit the uplink channel.
Further, the two downlink channels are independently configured with respective TCI states, and the two downlink channels are respectively configured with different transmission configuration indication TCI states.
Wherein the two downlink channels include: two physical downlink shared channels, the two physical downlink shared channels being configured with different TCI states,
Alternatively, the two downlink channels include: two physical downlink control channels, the TCI states of control resource sets CORESET associated with the two physical downlink control channels are different,
or, the two downlink channels include one physical downlink shared channel and one physical downlink control channel, where the TCI state configured by the one physical downlink shared channel is different from the TCI state of CORESET associated with the one physical downlink control channel.
Optionally, the method further comprises: receiving configuration of an uplink control channel resource; the configuration of the uplink control channel resource comprises the following steps: at least two spatial relationship information, and/or at least two sets of power control parameters, and/or at least two TCI states.
The uplink control channel repeated multiple transmission mode is a mode of transmitting according to at least two spatial relationship information or at least two power control parameter sets or at least two TCI states in the configuration of the uplink control channel resource.
The uplink control channel single transmission mode is a mode of transmitting according to at least two spatial relationship information or at least two power control parameter sets or one of at least two TCI states in the configuration of the uplink control channel resource.
Optionally, the two uplink control channels respectively correspond to different spatial relationship information or different power control parameter sets or different TCI states. If there is no united unified TCI (Joint Unified TCI), the PUCCH transmission mode is determined as follows:
the UE receives 2 PDCCHs/PDSCHs from 2 TRPs, respectively, and TCI states in a control resource set (Control resource set, core) corresponding to the 2 PDCCHs are also different (or a pair of TCI states for receiving PDSCH activated by MAC CE are different), and are respectively tci#0 and tci#1, and it is assumed that pdcch#0/pdsch#0 is from trp#0 and pdcch#1/pdsch#1 is from TRP1.
As shown in fig. 2, if the received RSRP or signal-to-noise ratio (SINR) of 2 PDCCHs/PDSCHs is relatively close, or the difference between the two is smaller than a certain threshold, it can be determined that the downlink channel conditions of 2 TRPs are close, and then the PUCCH performs Multi-TRP repetition transmission and sends to 2 TRPs respectively;
otherwise, as shown in fig. 3, the UE only transmits PUCCH to the TRP with larger RSRP or SINR according to the TRP with larger RSRP or SINR received in 2 PDCCHs/PDSCHs, and the backoff is a single-TRP transmission scheme. That is, if the UE performs better according to the TCI state (tci#0) with smaller ID, then the PUCCH is sent on FR2 according to only the spatial relationship information with smaller ID (spatial relation info, such as spatial-relation-info#0, for PUCCH), or the PUCCH is sent on FR1 according to only 1 set of power control parameter set with smaller ID, such as power control parameter set # 0.
Wherein, the base station and the UE are agreed in advance: the spatial relation info/power control parameter set with smaller ID configured by PUCCH and the TRP corresponding to TCI state with smaller ID configured by PDCCH/PDSCH are identical. Further, regarding the information that the UE may fall back to Single-TRP mode, the UE may or may not explicitly report to the base station.
Or, the two downlink channels are jointly configured with respective TCI states, and the two uplink control channels correspond to the same spatial relationship information or the same power control parameter set. If there is a unified TCI, the PUCCH transmission mode is determined as follows:
the PDCCH/PDSCH and PUCCH are both configured with the same set of joint unified TCI state (tci#0, tci#1) for TRP0 and TRP1, respectively. The UE receives 2 PDCCHs/PDSCHs from 2 TRPs, respectively, and the joint TCI states in CORESET corresponding to the 2 PDCCHs are also different (or the joint TCI states of a pair of activated MAC CEs for receiving PDSCH are different), assuming that pdcch#0/pdsch#0 is from trp#0 and pdcch#1/pdsch#1 is from trp#1.
As shown in fig. 2, if the received RSRP or SINR of 2 PDCCHs/PDSCHs are close, or the difference between them is smaller than a certain threshold, it can be determined that the downlink channel conditions of 2 TRPs are close, and the PUCCH performs Multi-TRP repetition transmission and transmits to 2 TRPs according to their respective TCI states;
Otherwise, as shown in fig. 3, the UE sends PUCCH only to 2 PDCCH/PDSCH according to the better TRP, and the backoff is single-TRP transmission scheme. That is, if the UE has better performance of PDCCH/PDSCH received according to any one of 2 joint TCI states, UE transmits PUCCH only according to joint TCI state # 0.
Wherein, regarding the information that the UE may fall back to the Single-TRP mode, the UE may or may not explicitly report to the base station.
In the transmission control method of the embodiment of the invention, two downlink channels respectively from two transmission and reception points TRP are received; according to the channel quality of two downlink channels, a mode for sending an uplink channel is selected from a multi-TRP repeated transmission mode and a single-TRP repeated transmission mode, and based on the channel quality, the uplink transmission can be flexibly carried out by selecting a proper mode from the multi-TRP repeated transmission mode and the single-TRP repeated transmission mode, so that the problems of low transmission reliability and resource waste caused by adopting the TRP for transmission when the channel quality of a certain TRP is poor are avoided.
The foregoing embodiments describe a transmission control method according to an embodiment of the present invention, and a corresponding device embodiment thereof will be further described below with reference to the accompanying drawings.
As shown in fig. 4, an embodiment of the present invention provides a transmission control apparatus, which is applied to a terminal, including:
a receiving module 410, configured to receive two downlink channels;
and the transmission module 420 is configured to select one uplink control channel transmission mode from the uplink control channel repeated multiple transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
Optionally, the transmission module includes:
a first transmission sub-module, configured to select an uplink control channel to transmit multiple uplink control channels in a repeated multiple transmission manner when a difference between channel qualities of the two downlink channels is less than a first preset threshold;
or alternatively, the process may be performed,
and the second transmission sub-module is used for selecting an uplink control channel to transmit for multiple times in a repeated transmission mode when the ratio of the channel quality of the two downlink channels is in a first preset range.
Optionally, the transmission module includes:
a third transmission sub-module, configured to select a single transmission mode of the uplink control channel to send an uplink control channel once when a difference between channel qualities of the two downlink channels is greater than or equal to a second preset threshold;
or alternatively, the process may be performed,
And the fourth transmission sub-module is used for selecting an uplink control channel single transmission mode to transmit the uplink control channel once when the ratio of the channel quality of the two downlink channels is not in the second preset range.
Optionally, the third transmission module or the fourth transmission module includes:
and the transmission unit is used for transmitting the uplink control channel on one channel with good quality in the two channels.
Optionally, the two downlink channels are respectively configured with different transmission configuration indicators TCI status.
Optionally, the two downlink channels include: two physical downlink shared channels, the two physical downlink shared channels being configured with different TCI states,
alternatively, the two downlink channels include: two physical downlink control channels, the TCI states of control resource sets CORESET associated with the two physical downlink control channels are different,
or, the two downlink channels include one physical downlink shared channel and one physical downlink control channel, where the TCI state configured by the one physical downlink shared channel is different from the TCI state of the CORESET associated with each of the one physical downlink control channel.
Optionally, the transmission control device further includes:
the second receiving module is used for receiving the configuration of an uplink control channel resource; the configuration of the uplink control channel resource comprises the following steps: at least two spatial relationship information, and/or at least two sets of power control parameters, and/or at least two TCI states.
Optionally, the uplink control channel repeating multiple transmission mode is a mode of transmitting according to at least two spatial relationship information or at least two power control parameter sets or at least two TCI states in the configuration of the uplink control channel resource respectively;
or the uplink control channel single transmission mode is a mode of transmitting according to at least two spatial relationship information or at least two power control parameter sets or one of at least two TCI states in the configuration of the uplink control channel resource.
The device embodiment of the present invention corresponds to the above method embodiment, and all implementation manners of the above method embodiment are applicable to the device embodiment and can achieve the same technical effects, so they are not described herein.
The terminal of the embodiment of the invention comprises a processor and a transceiver, wherein,
The transceiver is used for receiving two downlink channels;
the processor is configured to select one uplink control channel transmission mode from the uplink control channel repeated multiple transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
Optionally, the processor is further configured to:
when the difference value of the channel quality of the two downlink channels is smaller than a first preset threshold value, selecting an uplink control channel to transmit the uplink control channel for multiple times in a repeated transmission mode;
or alternatively, the process may be performed,
and when the ratio of the channel quality of the two downlink channels is in a first preset range, selecting an uplink control channel to transmit the uplink control channel for multiple times in a repeated transmission mode.
Optionally, the processor is further configured to:
when the difference of the channel quality of the two downlink channels is larger than or equal to a second preset threshold value, selecting an uplink control channel single transmission mode to transmit an uplink control channel once;
or alternatively, the process may be performed,
and when the ratio of the channel quality of the two downlink channels is not in the second preset range, selecting an uplink control channel single transmission mode to transmit the uplink control channel once.
Optionally, the processor is further configured to:
And transmitting the uplink control channel once on one channel with good quality in the two channels.
Optionally, the two TRPs are respectively configured with different transmission configuration indications TCI states.
Optionally, the two uplink control channels are respectively configured with different TCI states.
The two downlink channels include: two physical downlink shared channels, the two physical downlink shared channels being configured with different TCI states,
alternatively, the two downlink channels include: two physical downlink control channels, the TCI states of control resource sets CORESET associated with the two physical downlink control channels are different,
or, the two downlink channels include one physical downlink shared channel and one physical downlink control channel, where the TCI state configured by the one physical downlink shared channel is different from the TCI state of the CORESET associated with each of the one physical downlink control channel.
The transceiver is configured to receive a configuration of an uplink control channel resource; the configuration of the uplink control channel resource comprises the following steps: at least two spatial relationship information, and/or at least two sets of power control parameters, and/or at least two TCI states.
Optionally, the uplink control channel repeating multiple transmission mode is a mode of transmitting according to at least two spatial relationship information or at least two power control parameter sets or at least two TCI states in the configuration of the uplink control channel resource respectively;
Or the uplink control channel single transmission mode is a mode of transmitting according to at least two spatial relationship information or at least two power control parameter sets or one of at least two TCI states in the configuration of the uplink control channel resource. The terminal of this embodiment receives two downlink channels; according to the receiving of two downlink channels, one of a plurality of uplink control channel transmission modes and a single uplink control channel transmission mode is selected to send the uplink control channel transmission mode, and based on channel quality, the appropriate mode can be flexibly selected from the multi-TRP repeated transmission mode and the single TRP repeated transmission mode to carry out uplink transmission, so that the problems of low transmission reliability and resource waste caused by adopting the TRP to carry out transmission when the channel quality of a certain TRP is poor are avoided.
A terminal according to another embodiment of the present invention, as shown in fig. 5, includes a transceiver 510, a processor 500, a memory 520, and a program or instructions stored on the memory 520 and executable on the processor 500; the processor 500, when executing the program or instructions, implements the above-described application to the transmission control method.
The transceiver 510 is configured to receive and transmit data under the control of the processor 500.
Wherein in fig. 5, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 500 and various circuits of memory represented by memory 520, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 530 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.
It is further noted that the terminals described in this specification include, but are not limited to, smartphones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.
The transmission control method, the device and the terminal of the embodiment of the invention are introduced from the terminal side, and the transmission control method, the device and the network side device of the network side device are further described below with reference to the accompanying drawings.
As shown in fig. 6, an embodiment of the present invention provides a transmission control method applied to a network side device, including but not limited to the following steps:
step 61: two downlink channels are transmitted.
Wherein, the two downlink channels are respectively from two TRPs, the two TRPs respectively correspond to different transmission configuration indication TCI states, and the different TCI states correspond to respective power control parameter sets.
Step 62: and receiving an uplink control channel, wherein the uplink control channel is transmitted by a terminal in an uplink control channel repeated transmission mode or an uplink control channel single transmission mode, and the terminal selects one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of two downlink channels.
Optionally, step 62 includes: the uplink control channel is received through two TRPs.
Optionally, step 62 further includes, before: and receiving indication information, wherein the indication information is used for indicating the uplink control channel transmission mode selected by the terminal.
The channel quality of two TRPs can be determined based on the channel quality of two downlink channels, so that the uplink channel can be transmitted by selecting a multi-TRP repeated transmission scheme or a single TRP repeated transmission scheme based on the channel quality of TRPs. Specifically, the uplink and downlink channels have channel reciprocity, the channel quality of the downlink channel is good, the channel quality of the uplink channel in the same direction can be judged to be good, and the terminal can adaptively select a multi-TRP repeated transmission mode or a single-TRP repeated transmission mode to transmit the uplink channel according to the channel quality of the downlink channel.
As shown in fig. 7, the embodiment of the present invention further provides a transmission control apparatus, which is applied to a network side device, and the apparatus includes, but is not limited to, the following functional modules:
a transmitting module 710, configured to transmit two downlink channels;
the first receiving module 720 is configured to receive an uplink control channel, where the uplink control channel is sent by the terminal in an uplink control channel repeated multiple transmission mode or an uplink control channel single transmission mode, and the terminal selects one of the uplink control channel repeated multiple transmission mode and the uplink control channel single transmission mode according to the reception of two downlink channels.
The device embodiment of the present invention corresponds to the above method embodiment, and all implementation manners of the above method embodiment are applicable to the device embodiment and can achieve the same technical effects, so they are not described herein.
The network side device according to another embodiment of the present invention, as shown in fig. 8, includes a transceiver 810, a processor 800, a memory 820, and a program or instructions stored on the memory 820 and executable on the processor 800; the processor 800 implements the transmission control method applied to the network side device when executing the program or the instructions.
The transceiver 810 is configured to receive and transmit data under the control of the processor 800.
Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 800 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 810 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.
The readable storage medium of the embodiment of the present invention stores a program or an instruction, which when executed by a processor, implements the steps in the transmission control method described above, and can achieve the same technical effects, and is not described herein again for avoiding repetition.
The processor is a processor in the terminal or the network side device described in the foregoing embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a magnetic disk or an optical disk.
In an embodiment of the invention, the modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices.
Where a module may be implemented in software, taking into account the level of existing hardware technology, a module may be implemented in software, and one skilled in the art may, without regard to cost, build corresponding hardware circuitry, including conventional Very Large Scale Integration (VLSI) circuits or gate arrays, and existing semiconductors such as logic chips, transistors, or other discrete components, to achieve the corresponding functions. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
The exemplary embodiments described above are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore, the present invention should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, the size of the elements and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values includes the upper and lower limits of the range and any subranges therebetween.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (19)
1. A transmission control method, applied to a terminal, comprising:
receiving two downlink channels;
and selecting one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
2. The transmission control method according to claim 1, wherein selecting one of an uplink control channel transmission scheme among an uplink control channel repetition transmission scheme and an uplink control channel single transmission scheme according to the reception of the two downlink channels, comprises:
when the difference value of the channel quality of the two downlink channels is smaller than a first preset threshold value, selecting an uplink control channel to transmit the uplink control channel for multiple times in a repeated transmission mode;
or alternatively, the process may be performed,
and when the ratio of the channel quality of the two downlink channels is in a first preset range, selecting an uplink control channel to transmit the uplink control channel for multiple times in a repeated transmission mode.
3. The transmission control method according to claim 1, wherein selecting one of an uplink control channel transmission scheme among an uplink control channel repetition transmission scheme and an uplink control channel single transmission scheme according to the reception of the two downlink channels, comprises:
when the difference of the channel quality of the two downlink channels is larger than or equal to a second preset threshold value, selecting an uplink control channel single transmission mode to transmit an uplink control channel once;
or alternatively, the process may be performed,
and when the ratio of the channel quality of the two downlink channels is not in the second preset range, selecting an uplink control channel single transmission mode to transmit the uplink control channel once.
4. The transmission control method according to claim 3, wherein selecting to transmit the uplink control channel once by using the uplink control channel single transmission scheme comprises:
and transmitting an uplink control channel on one channel with good quality in the two channels.
5. The transmission control method according to claim 1, wherein the two downlink channels are respectively configured with different transmission configuration indication TCI states.
6. The transmission control method according to claim 5, wherein,
The two downlink channels include: two physical downlink shared channels, the two physical downlink shared channels being configured with different TCI states,
alternatively, the two downlink channels include: two physical downlink control channels, the TCI states of control resource sets CORESET associated with the two physical downlink control channels are different,
or, the two downlink channels include one physical downlink shared channel and one physical downlink control channel, where the TCI state configured by the one physical downlink shared channel is different from the TCI state of CORESET associated with the one physical downlink control channel.
7. The transmission control method according to claim 1, characterized by further comprising:
receiving configuration of an uplink control channel resource; the configuration of the uplink control channel resource comprises the following steps: at least two spatial relationship information, and/or at least two sets of power control parameters, and/or at least two TCI states.
8. The transmission control method according to claim 1 or 7, wherein the uplink control channel is transmitted in a manner of repeating a plurality of transmissions according to at least two spatial relationship information or at least two power control parameter sets or at least two TCI states in a configuration of one uplink control channel resource, respectively;
Or the uplink control channel single transmission mode is a mode of transmitting according to at least two spatial relationship information or at least two power control parameter sets or one of at least two TCI states in the configuration of the uplink control channel resource.
9. The transmission control method is characterized by being applied to network side equipment and comprising the following steps of:
transmitting two downlink channels;
and receiving an uplink control channel, wherein the uplink control channel is transmitted by a terminal in an uplink control channel repeated transmission mode or an uplink control channel single transmission mode, and the terminal selects one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
10. A transmission control apparatus, characterized by being applied to a terminal, comprising:
the receiving module is used for receiving the two downlink channels;
and the transmission module is used for selecting one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
11. The transmission control device according to claim 10, wherein the transmission module includes:
A first transmission sub-module, configured to select an uplink control channel to transmit multiple uplink control channels in a repeated multiple transmission manner when a difference between channel qualities of the two downlink channels is less than a first preset threshold;
or alternatively, the process may be performed,
and the second transmission sub-module is used for selecting an uplink control channel to transmit for multiple times in a repeated transmission mode when the ratio of the channel quality of the two downlink channels is in a first preset range.
12. The transmission control device according to claim 10, wherein the transmission module includes:
a third transmission sub-module, configured to select a single transmission mode of the uplink control channel to send an uplink control channel once when a difference between channel qualities of the two downlink channels is greater than or equal to a second preset threshold;
or alternatively, the process may be performed,
and the fourth transmission sub-module is used for selecting an uplink control channel single transmission mode to transmit the uplink control channel once when the ratio of the channel quality of the two downlink channels is not in the second preset range.
13. The transmission control device according to claim 12, wherein the third transmission module or the fourth transmission module includes:
and the transmission unit is used for transmitting the uplink control channel on one channel with good quality in the two channels.
14. The transmission control apparatus according to claim 10, wherein the two downlink channels are respectively configured with different transmission configuration indication TCI states.
15. The transmission control apparatus according to claim 10, wherein the uplink control channel multiple transmissions are respectively configured with different transmission configuration indication TCI states.
16. A transmission control apparatus, characterized by being applied to a network-side device, comprising:
a sending module, configured to send two downlink channels;
the first receiving module is configured to receive an uplink control channel, where the uplink control channel is sent by a terminal in a manner of repeating multiple transmissions of the uplink control channel or a manner of single transmission of the uplink control channel, and the terminal selects one uplink control channel transmission manner from the manner of repeating multiple transmissions of the uplink control channel and the manner of single transmission of the uplink control channel according to the reception of the two downlink channels.
17. A terminal, comprising: a transceiver and a processor;
the transceiver is used for receiving two downlink channels;
the processor is configured to select one uplink control channel transmission mode from the uplink control channel repeated multiple transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
18. A network side device comprising a transceiver and a processor;
the transceiver is used for transmitting two downlink channels; and
and receiving an uplink control channel, wherein the uplink control channel is transmitted by a terminal in an uplink control channel repeated transmission mode or an uplink control channel single transmission mode, and the terminal selects one uplink control channel transmission mode from the uplink control channel repeated transmission mode and the uplink control channel single transmission mode according to the reception of the two downlink channels.
19. A readable storage medium having stored thereon a program or instructions, which when executed by a processor, implement the steps in the transmission control method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111350174.7A CN116133042A (en) | 2021-11-15 | 2021-11-15 | Transmission control method, device, terminal and network side equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111350174.7A CN116133042A (en) | 2021-11-15 | 2021-11-15 | Transmission control method, device, terminal and network side equipment |
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| Publication Number | Publication Date |
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| CN116133042A true CN116133042A (en) | 2023-05-16 |
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|---|---|---|---|
| CN202111350174.7A Pending CN116133042A (en) | 2021-11-15 | 2021-11-15 | Transmission control method, device, terminal and network side equipment |
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| Country | Link |
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| CN (1) | CN116133042A (en) |
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