CN115087104A - Communication method and device - Google Patents

Communication method and device Download PDF

Info

Publication number
CN115087104A
CN115087104A CN202110271912.2A CN202110271912A CN115087104A CN 115087104 A CN115087104 A CN 115087104A CN 202110271912 A CN202110271912 A CN 202110271912A CN 115087104 A CN115087104 A CN 115087104A
Authority
CN
China
Prior art keywords
time
time unit
unit
information
terminal device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110271912.2A
Other languages
Chinese (zh)
Inventor
吴世娟
唐富华
余政
金哲
刘哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN202110271912.2A priority Critical patent/CN115087104A/en
Priority to PCT/CN2022/078298 priority patent/WO2022188649A1/en
Publication of CN115087104A publication Critical patent/CN115087104A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application provides a communication method and a device, and the method comprises the following steps: the terminal equipment receives first Downlink Control Information (DCI) in a first time slot, and determines a second time slot for transmitting second information according to the first DCI, wherein the interval between the second time slot and the first time slot is more than or equal to B time slots, and B is a positive integer; and the terminal equipment performs frequency tuning and transmits second information in the second time slot, wherein the terminal equipment transmits first information in a time range after receiving the first DCI and before performing the frequency tuning, and/or transmits third information in a time range after performing the frequency tuning and before a third time slot, and the third time slot is separated from the first time slot by B time slots. By the method, the problem of data transmission interruption caused by frequency tuning can be solved, the resource utilization rate is effectively improved, the information processing time delay is reduced, and the flexibility of data transmission is improved.

Description

Communication method and device
Technical Field
The present application relates to the field of communications, and in particular, to a communication method and apparatus.
Background
Currently, the NR standard introduces a low complexity user equipment (REDCAP UE) concept, which may be lower in bandwidth, power consumption, number of antennas, etc. than other types of UEs, such as narrower bandwidth, lower power consumption, fewer antennas, etc. The above-mentioned bandwidth narrowing and the like may reduce the data transmission efficiency of the REDCAP UE.
In order to more efficiently utilize the frequency diversity gain and improve the data transmission efficiency, the REDCAP UE needs to perform frequency tuning to a new frequency domain resource range for data transmission. The redtap UE needs to occupy a certain time unit length for performing frequency tuning, and within the time unit length range, the redtap UE has no capability of continuing data transmission, which reduces the flexibility of data transmission.
In addition to the redtap UE, in some scenarios, for example, a partial bandwidth part (BWP) handover, other types of UEs may perform frequency tuning to a new frequency resource range for data transmission.
In an existing New Radio (NR) protocol, a time domain resource tuned by a frequency is not specified, but a position of the time domain resource tuned by the frequency affects data transmission of a terminal device, and affects data transmission efficiency.
Disclosure of Invention
The application provides a communication method and device, which can solve the problem of data transmission interruption caused by frequency tuning, flexibly define the time domain position of the frequency tuning, facilitate flexible data transmission and frequency tuning of terminal equipment, effectively improve the resource utilization rate of data transmission and reduce information processing time delay.
In a first aspect, a communication method is provided, including: the terminal equipment receives first Downlink Control Information (DCI) in a first time slot; the terminal equipment determines a second time slot for transmitting second information according to the first DCI, wherein the interval between the second time slot and the first time slot is more than or equal to B time slots, and B is a positive integer; the terminal equipment performs frequency tuning and transmits second information in a second time slot; the terminal equipment transmits first information in a time range between the ending time of a time unit T and the starting time of a time unit N, wherein the time unit N is a frequency-tuned starting time unit, and the starting time of the time unit T is not earlier than the starting time/ending time of a time unit K or the starting time of the time unit T is not earlier than the ending time of a time unit R; and/or the terminal equipment transmits third information in a time range between the ending time of a time unit M and the starting time of a time unit Y, wherein the time unit M is the ending time unit of frequency tuning, the time unit Y is the starting time unit of a third time slot, and the interval between the third time slot and the first time slot is equal to B time slots.
Optionally, the terminal device receives the first downlink control information DCI in the first time slot; the terminal equipment determines a second time slot for transmitting second information according to the first DCI, wherein the interval between the second time slot and the first time slot is more than or equal to B time slots, and B is a positive integer; the terminal equipment performs frequency tuning and transmits second information in a second time slot; the terminal equipment transmits first information within the time range of time T and time N, wherein the time N is the starting time of the terminal equipment for executing frequency tuning, and the time T is not earlier than the time K, or the time T is equal to the time K, or the time T is not earlier than the ending time of R; and/or the terminal device can transmit the third information within a time range between a time M and a time Y, wherein the time M is an end time of the terminal device executing frequency tuning, the time Y is a starting time of the third time slot, and a time slot interval quantity between the third time slot and the first time slot is equal to B time slots.
It should be understood that the time domain resource may include a start time and an end time, or a start time unit and an end time unit, or an end time of the start time unit and a start time of the end time unit, which is not limited in this application. For convenience of description, the following contents describe the related technical solutions of the content of the embodiments of the present application in time units, but do not negate other similar terms, such as time, time unit, starting time and ending time of the time unit, and the like.
Optionally, when the terminal device transmits the first information in the time range between the ending time of the time unit T and the starting time of the time unit N, the terminal device may occupy all the time length in any one time range in the time range, may also occupy part of the time length in any one time range in the time range, and may also not occupy any one time length in the time range, that is, does not perform data transmission.
Optionally, when the terminal device transmits the third information in the time range between the ending time of the time unit M and the starting time of the time unit Y, the terminal device may occupy all the time length in any one time range in the time range, may also occupy part of the time length in any one time range in the time range, and may also not occupy any one time length in the time range, that is, may not perform data transmission.
Alternatively, the terminal device transmits the first information or transmits the third information, which may be understood as that the terminal device has the ability to transmit information and perform information transmission, or that the terminal device has the ability to transmit information, but the terminal device may choose not to perform information transmission by determining certain conditions, for example, that the communication quality in the current frequency range is not high, that frequency tuning occurs, and the like.
Through the technical scheme, the terminal equipment can transmit the first information and the third information in the time periods before and after the frequency tuning is executed, and the flexibility of data transmission is improved. For example, in a specific scenario of BWP handover, i.e. BWP before and after handover only involves a change in the frequency domain position, the other BWP configuration parameters are the same. The terminal device has the ability to continue the transmission of information during the BWP handoff delay. During the time delay of the BWP switching and before and after the time domain position of the frequency tuning, the terminal device continues to transmit information, which can improve the utilization rate of the time domain resource to the greatest extent and reduce the time delay of information processing. In another aspect, the network device or the terminal device may select different time domain resource locations for the terminal device to perform frequency tuning during the latency of BWP handover based on the capability difference of the terminal device. For example, the terminal device has the ability to perform frequency tuning quickly, and if the network device or the terminal device predetermines that the communication quality in the frequency domain range after frequency tuning is higher, the terminal device may perform frequency tuning quickly and switch to a new frequency domain range, so as to transmit information in the new frequency range earlier; or, in a specific time domain resource range during the delay of BWP handover, when there is a need to transmit information, the terminal device or the network device may adjust the location of performing frequency tuning to be outside the time domain range of transmitting information, or the terminal device may discard the transmission information, thereby avoiding interruption of data transmission and waste of data transmission resources caused by the terminal device performing frequency domain tuning.
For example, in another scenario, the terminal device implements frequency point switching based on frequency tuning, that is, the terminal device receives the first downlink control information DCI in the first time slot; and the terminal equipment determines a second time slot for transmitting second information according to the first DCI, wherein the frequency point switching is not realized by BWP switching. The network device or the terminal device can flexibly select different time domain resource positions for the terminal device to perform frequency tuning based on the capability difference of the terminal device and the requirement of the terminal device. For example, in the time range from the first time slot starting position to the second time slot starting position, the terminal device has the ability to perform frequency tuning quickly, and the network device or the terminal device prejudges that the communication quality in the frequency domain range after frequency tuning is higher, the terminal device can perform frequency tuning quickly and switch to a new frequency domain range, so that information can be transmitted in the new frequency range earlier; or, there is information transmission in the time range from the first time slot starting position to the second time slot starting position, and the terminal device or the network device may adjust the position where the frequency tuning is performed to be outside the time domain range of the transmission information, or the terminal device may discard the transmission information, thereby avoiding the interruption of data transmission caused by the terminal device performing the frequency domain tuning.
With reference to the first aspect, in some implementations of the first aspect, the terminal device does not perform frequency tuning during the transmission of the first information and the third information.
The terminal device is capable of transmission of the first information and the third information during a period before and after the frequency tuning is performed. And the terminal equipment can be ensured not to carry out the frequency tuning process in the transmission process of the first information and the third information, so that the transmission interruption of the first information and the third information can not be caused, and the incomplete transmission of the first information or the third information caused by the overlapping of the information transmission and the frequency tuning time domain resources can not be caused.
From another perspective, if the terminal device does not have the capability to complete the transmission of the first information within the time range, the terminal device may choose to discard the first information. Similarly, if the terminal device does not have the capability to complete the transmission of the third information within the time range, the terminal device may choose to discard the third information.
It should be understood that the transmission described above includes both the process of receiving or transmitting information, or refers to either of the process of receiving or transmitting information.
With reference to the first aspect, in some implementations of the first aspect, the time unit K may be an end time unit of the terminal device receiving the first DCI, and the time unit R may be a time unit of the terminal device parsing the first DCI.
It should be understood that the time domain range of time unit R is equal to the time range of the terminal device parsing the first DCI, and the length of time unit R is equal to the time length of the terminal device parsing the first DCI.
It should be understood that the process of receiving the first DCI by the terminal device may also be referred to as a process of detecting the first DCI by the terminal device, or other similar words to describe the process, which is not limited in this application.
It should be understood that the process of parsing DCI by the terminal device may be equivalent or similar expression of an equivalent process of acquiring information carried by the first DCI by the terminal device, or may also be expressed by other similar words, such as obtaining, extracting, and the like, which is not limited in this application.
It should be understood that the ending time unit of the terminal device receiving the first DCI may be an ending position of a specific certain time domain symbol, and may be, for example, an ending position of a third time domain symbol of the first time slot, an intermediate position of the third time domain symbol, or another position, or another time domain symbol of the first time slot, or another time unit, which is not limited in this application.
It should be understood that the network device may send the first DCI to the terminal device, and the terminal device correspondingly detects and/or receives the first DCI. The time unit in which the network device sends the first DCI and the time unit in which the terminal device receives the first DCI may be the same time unit or different time units, which is not limited in this application.
It should be understood that the time unit for the terminal device to end receiving the first DCI or end parsing the first DCI may be a time domain symbol unit, or may be other time units, such as seconds, milliseconds, microseconds, and the like, which is not limited in this application.
It should be understood that different terminal devices have different processing capabilities, and when the capabilities of some terminal devices are stronger, they can flexibly select a suitable end time unit for analyzing the first DCI, so as to pre-allocate a sufficient time length for the subsequent transmission of the first information and the third information, and meet the transmission requirements of the information; when the capability of some terminal devices is weak, the terminal devices may select a longer end time unit for parsing the first DCI, which is not limited in this application.
By the technical scheme, the DCI receiving ending time and/or the DCI analyzing ending can be used as the reference starting position of the time domain range for transmitting the first information, so that the capability difference of different terminal devices can be fully considered, different time domain ranges can be reasonably selected to transmit the first information, and the flexible scheduling of data transmission can be realized.
With reference to the first aspect, in some implementations of the first aspect, the length of the time unit R is a predefined integer, or is configured in a signaling manner, or is determined according to the capability of the terminal device.
The time length for the terminal device to analyze the first DCI may be specifically configured by signaling, that is, the network device sends signaling to the terminal device, and the signaling indicates the time length for the terminal device to analyze the first DCI; or, the terminal device may determine, according to its own capability, a time length for which the first DCI can be analyzed, and the terminal device informs the network device of the capability information; or, the time length for the terminal device to analyze the first DCI may also be predefined by a protocol between the terminal device and the network device, which is not limited in this application.
It should be understood that the unit of the ending time for the network device to determine to end the first DCI may be determined jointly by the DCI sending ending time and the time length for analyzing the first DCI, or may be determined in other manners, which is not limited in this application.
By the technical scheme, the terminal equipment and the network equipment determine the time length for analyzing the first DCI, and the network equipment is used for determining the capability of the terminal equipment for analyzing the DCI and providing reference information for the implementation position of subsequent frequency tuning.
With reference to the first aspect, in certain implementations of the first aspect, the time unit K may also be an nth time slot within the first time slot range 1 A time domain symbol, and/or the time unit R is N after the end time unit of the first DCI received by the terminal equipment in the first time slot range 2 A time range over which the time domain symbols last.
Alternatively, N 1 A value of greater than 3, e.g. N 1 ＝5，N 1 ＝6，N 1 7; or, N 1 The value of (A) is not limited to more than 3, e.g. N 1 ＝3，N 1 ＝4，N 1 ＝5，N 1 ＝6，N 1 This is not limited in this application to 7.
Optionally, the terminal device determines to be able to transmit according to its own capabilityOr receiving a start symbol N of the first information 0 And sending capability information, N, to the network device 1 The value of (A) is not less than N determined by the terminal device according to the self capability information 0 . Alternatively, N 0 ＝2，N 0 ＝3，N 0 ＝4，N 0 ＝5，N 0 This is not limited in this application to 6.
Alternatively, N 2 ＝0，N 2 ＝1，N 2 ＝2，N 2 ＝3，N 2 This is not limited in any way by the present application as 4.
Optionally, the terminal device determines, according to its own capability information, a symbol interval amount N that can transmit or receive the first information relative to receiving the end symbol of the first DCI 3 And sending capability information, N, to the network device 2 The value of (A) is not less than N determined by the terminal device according to the self capability information 3 . Alternatively, N 3 ＝0，N 3 ＝1，N 3 ＝2，N 3 ＝3，N 3 This is not limited in any way by the present application as 4.
By taking a certain time domain symbol position in the first time slot range and/or a certain time domain symbol position after the terminal equipment finishes receiving the DCI as a reference starting position of the time domain range for transmitting the first information, the network equipment and the terminal equipment do not need to determine the time domain length for analyzing the DCI and the determined time domain position for finishing analyzing the DCI, so that signaling overhead related to indicating the time domain position for analyzing the DCI is saved, resource waste is avoided, and communication efficiency is improved.
With reference to the first aspect, in certain implementations of the first aspect, the location of the starting time unit N at which the terminal device performs frequency tuning is predefined, or configured by signaling, or determined according to the capabilities of the terminal device; the location of time unit N belongs to a first set of locations, the first set of locations comprising a plurality of candidate locations for the time unit N.
With reference to the first aspect, in certain implementations of the first aspect, an ending time unit M of the terminal device performing the frequency tuning belongs to the second location set, and the second location set includes a plurality of candidate locations of the time unit M; alternatively, the end time of time unit M is equal to the start time of said time unit Y.
The terminal device may determine the start time position and/or the end time position, or the start time unit and/or the end time unit, or the start time of the start time unit and/or the end time of the end time unit, etc. of performing the frequency tuning by: mode 1: receiving signaling from a network device, wherein the signaling indicates a starting time position and/or an ending time position for the terminal device to perform frequency tuning, optionally, the network device and the terminal device may be predefined, or the network device directly indicates a time candidate position for the terminal device to perform frequency tuning, and one of a plurality of candidate positions is specifically indicated by a bits, a is greater than or equal to 1, and a is an integer; or, the network device directly indicates the starting time position and/or the ending time position of the terminal device for executing the frequency tuning, and the terminal analyzes the indication signaling to determine the starting time position and/or the ending time position for executing the frequency tuning. Mode 2: the starting time position and/or the ending time position for performing frequency tuning is determined by the capability of the terminal equipment, the terminal equipment determines the optional starting time position and/or the optional ending time position for frequency tuning to receive the first DCI in the time slot and any position of the time slot after the first DCI, or the optional starting time position and/or the optional ending time position for frequency tuning determined by the terminal equipment is limited within a range of only a few candidate positions. Illustratively, when the capability of the terminal equipment is strong, the advanced or delayed time domain position can be flexibly selected to execute frequency tuning; mode 3: the default start time position and end time position of the frequency tuning are determined by the terminal device and the network device in a protocol manner, and for example, the end position of the frequency tuning may be aligned with the start time of the second timeslot, which is not limited in this application.
According to the technical scheme, various modes of determining the time domain position of frequency tuning by the network equipment and the terminal equipment are considered, so that the factors such as different scene characteristics, the capability of the terminal equipment, signaling overhead and the like are favorably and fully considered, the feasibility of the technical scheme is improved, and the communication efficiency is improved. Meanwhile, by defining a plurality of candidate positions for frequency tuning, the capability difference and the communication requirement of the terminal equipment can be considered jointly, different time domain positions can be flexibly selected for frequency tuning, and the flexibility of data transmission is improved.
With reference to the first aspect, in some implementations of the first aspect, the terminal device receives a first signaling, where the first signaling indicates a time length occupied by the frequency tuning; or the terminal device sends the first capability information to the network device, where the first capability information is used by the network device to determine the time length occupied by the frequency tuning.
The network device sends signaling to the terminal device to indicate the time length of the terminal device for performing frequency tuning, or the terminal device determines the time length of the terminal device for performing frequency tuning according to the self-capability, so that the terminal device or the network device can better and flexibly schedule the time length of the terminal device for performing frequency tuning and can better and fully utilize the self-capability information of the terminal device to determine the time length of the frequency tuning.
The technical scheme is suitable for determining the starting position N of the frequency tuning, and the terminal equipment determines the time domain position for executing the frequency tuning based on the frequency tuning length, so that the network equipment and the terminal equipment are guided to reasonably schedule or allocate the terminal equipment to transmit the first information and the third information.
It is to be understood that the time domain position where the terminal device performs the frequency tuning may be determined based on the determined start position N of the frequency tuning and the duration length of the frequency tuning. It may also be determined based on the start position N and the end position M of the frequency tuning.
It should be understood that the corresponding duration length of frequency tuning can be determined in the three ways described, namely: the pre-definition, signaling indication or capability report can also be determined by the starting position N and the ending position M of frequency tuning.
With reference to the first aspect, in some implementations of the first aspect, B is a number of slots included in a handover delay, or B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
It should be understood that the number of slots included in the handover delay refers to the number of slots required by the terminal device to complete frequency tuning, or the value of the handover delay, and the slots herein may also be other time units, such as subframes or symbols.
The terminal device may obtain information carried by the first DCI by receiving the first DCI sent from the network device in the first time slot, and instruct the terminal device to transmit the second information in the second time slot. Wherein, the first DCI may carry the following information: and the terminal equipment transmits the time slot offset between the second time slot in which the second information is positioned and the first time slot.
The terminal equipment carries out switching time delay value of frequency point switching, the switching time delay value takes time slot as a measurement unit, and the switching time delay value can be smaller than or equal to the time interval between the first time slot and the second time slot.
Illustratively, in a BWP handoff scenario, B may be equal to the length of the BWP handoff latency. In this scenario, the amount of time interval between the second time slot and the first time slot should be greater than or equal to B. I.e. the temporal position of the second information transmission is after the BWP handover delay end position.
Alternatively, the first DCI may indicate a slot offset value between the first slot and the second slot in a time domain resource allocation field.
Exemplarily, in the frequency point switching scenario, the frequency point switching is not implemented by means of BWP switching. For example, if the terminal device receives the first DCI in the first time slot and instructs the terminal device to receive the PDSCH in the second time slot, B is equal to the time slot offset between the time slot in which the terminal device receives the first DCI and the time slot in which the terminal device transmits the second information.
And correspondingly and flexibly defining the meaning of B aiming at different frequency point switching scenes. The method and the device can expand the scenes in which the technical scheme can be implemented and increase the implementability of the technical scheme.
In a second aspect, a communication method is provided, including: the network equipment sends first downlink control information DCI in a first time slot, wherein the first DCI indicates a second time slot for terminal equipment to transmit second information, the interval between the second time slot and the first time slot is more than or equal to B time slots, and B is a positive integer; the network device transmits second information on the second time slot, wherein the network device transmits the first information in a time range between an ending time of a time unit T and a starting time of a time unit N, the time unit N is a starting time unit for the terminal device to perform frequency tuning, and the starting time of the time unit T is not earlier than the ending time of the time unit K or the starting time of the time unit T is not earlier than the ending time of the time unit R; and/or the network device transmits third information in a time range between an end time of a time unit M and a start time of a time unit Y, wherein the time unit M is an end time unit for the terminal device to perform frequency tuning, the time unit Y is a start time unit of a third time slot, and the interval between the third time slot and the first time slot is equal to B time slots.
Through the technical scheme, the problem of data transmission interruption caused by frequency tuning can be solved, the resource utilization rate is effectively improved, the information processing time delay is reduced, and the flexibility of data transmission is improved.
With reference to the second aspect, in some implementations of the second aspect, the terminal device does not perform a frequency tuning operation during the transmission of the first information and the third information, and the transmission mode includes receiving or sending information.
With reference to the second aspect, in some implementations of the second aspect, the time unit K is an end time unit of the network device sending the first DCI, and the time unit R is a time unit of the terminal device parsing the first DCI.
It should be understood that the starting position and the ending position of the time range in which the network device receives or transmits the first information and the third information may be determined by the manner in which the terminal device transmits the indication information to the network device, such as a specific time unit in which the terminal device finishes parsing DCI.
It should be understood that the time unit in which the network device sends the first DCI and the time unit in which the terminal device receives the first DCI may be the same time unit, or may not be the same time unit, which is not limited in this application.
With reference to the second aspect, in some implementations of the second aspect, the length of the time unit R is a predefined integer, or is configured by the network device through a signaling manner, or is determined according to the capability of the terminal device.
With reference to the second aspect, in certain implementations of the second aspect, the time unit K may also be an nth time slot within the first time slot range 1 A time domain symbol, and/or the time unit R is N after the end time unit of the first DCI received by the terminal equipment in the first time slot range 2 A time range in which one time domain symbol lasts.
The lengths of K and R are predefined integers or determined according to the capabilities of the terminal device.
With reference to the second aspect, in some implementations of the second aspect, the location of the time unit N is predefined, or configured by the network device by signaling, or determined according to the capability of the terminal device; the location of time unit N belongs to a first set of locations, the first set of locations comprising a plurality of candidate locations for the time unit N.
With reference to the second aspect, in certain implementations of the second aspect, the location of the time unit M belongs to a second location set, the second location set including a plurality of candidate locations for the time unit M; alternatively, the end time of time unit M is equal to the start time of said time unit Y.
With reference to the second aspect, in some implementations of the second aspect, B is a number of slots included in the handover delay, or B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
With reference to the second aspect, in some implementations of the second aspect, the network device sends a first signaling, where the first signaling indicates a length of time occupied by frequency tuning performed by the terminal device; or the network device receives first capability information, wherein the first capability information is used for the network device to determine the time length occupied by the frequency tuning performed by the terminal device.
In a third aspect, a communication apparatus is provided, the apparatus comprising: a transceiving unit, configured to receive first downlink control information DCI in a first time slot; a processing unit, configured to determine a second time slot for transmitting second information according to the first DCI, where a distance between the second time slot and the first time slot is greater than or equal to B time slots, where B is a positive integer; a processing unit further for performing frequency tuning; a transceiver unit, further configured to transmit the second information in a second time slot, where the transceiver unit is further configured to transmit the first information in a time range between an end time of a time unit T and a start time of a time unit N, the time unit N being a start time unit with tuned frequency, and the start time of the time unit T is not earlier than the end time of the time unit K or the start time of the time unit T is not earlier than the end time of the time unit R; and/or the transceiver unit is further configured to transmit third information within a time range between an end time of a time unit M and a start time of a time unit Y, where the time unit M is an end time unit of frequency tuning performed by the terminal device, the time unit Y is a start time unit of a third time slot, and a gap between the third time slot and the first time slot is equal to B time slots.
With reference to the third aspect, in some implementations of the third aspect, the terminal device does not perform a frequency tuning action in the process of transmitting the first information and the third information, and the transmission mode includes receiving or sending information.
With reference to the third aspect, in some implementations of the third aspect, time unit K is an end time unit of the terminal device receiving the first DCI, and time unit R is a time unit of the terminal device parsing the first DCI.
With reference to the third aspect, in certain implementations of the third aspect, the length of the time unit R is a predefined integer, or is configured by the network device through a signaling manner, or is determined according to the capability of the terminal device.
With reference to the third aspect, in certain implementations of the third aspect, the time unit K may also be within the first time slot rangeN of (2) 1 The time domain symbol and/or the time unit R is N after the end time unit of the first DCI received by the terminal equipment in the first time slot range 2 A time range in which one time domain symbol lasts.
The lengths of K and R are predefined integers or determined according to the capabilities of the terminal device.
With reference to the third aspect, in certain implementations of the third aspect, the location of the time unit N is predefined, or configured by the network device through signaling, or determined according to the capability of the terminal device. The location of time unit N belongs to a first set of locations comprising a plurality of candidate locations for said N.
With reference to the third aspect, in certain implementations of the third aspect, the location of time unit M belongs to a second location set, the second location set including a plurality of candidate locations for time unit M; alternatively, the end time of the time unit M is equal to the start time of the time unit Y.
With reference to the third aspect, in some implementations of the third aspect, B is a number of slots included in the handover delay, or B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to: receiving a first signaling, wherein the first signaling indicates the time length occupied by frequency tuning performed by terminal equipment; or sending first capability information to the network device, where the first capability information is used by the network device to determine a time length occupied by the frequency tuning performed by the terminal device.
In a fourth aspect, there is provided a communication apparatus, the apparatus comprising: a transceiving unit, configured to send first downlink control information DCI in a first time slot, where the first DCI indicates a second time slot in which terminal equipment transmits second information, where a gap between the second time slot and the first time slot is greater than or equal to B time slots, and B is a positive integer; the transceiver unit is further configured to transmit second information in the second time slot, where the transceiver unit is further configured to transmit the first information in a time range between an end time of a time unit T and a start time of a time unit N, where the time unit N is a start time unit with tuned frequency, and the start time of the time unit T is not earlier than the end time of the time unit K or the start time of the time unit T is not earlier than the end time of the time unit R; and/or the transceiving unit is further configured to transmit the third information within a time range between an end time of a time unit M and a start time of a time unit Y, the time unit M being an end time unit of the frequency tuning, the time unit Y being a start time unit of the third time slot, and an amount of time slot interval between the third time slot and the first time slot being equal to B time slots.
With reference to the fourth aspect, in some implementations of the fourth aspect, the transmission includes reception or transmission of information.
With reference to the fourth aspect, in some implementations of the fourth aspect, time unit K is an end time unit of the network device sending the first DCI, and time unit R is a time unit of the terminal device parsing the first DCI.
With reference to the fourth aspect, in some implementations of the fourth aspect, the length of the time unit R is a predefined integer, or is configured by the network device through a signaling manner, or is determined according to the capability of the terminal device.
With reference to the fourth aspect, in some implementations of the fourth aspect, the time unit K may also be an nth time slot within the first time slot range 1 The time domain symbol, and/or, the time unit R is N after the end time unit of the first DCI received by the terminal equipment in the first time slot range 2 A time range in which one time domain symbol lasts.
The lengths of K and R are predefined integers or determined according to the capabilities of the terminal device.
With reference to the fourth aspect, in some implementations of the fourth aspect, the location of the time unit N is predefined, or configured by the network device through signaling, or determined according to the capability of the terminal device. The location of time unit N belongs to a first set of locations comprising a plurality of candidate locations for time unit N.
With reference to the fourth aspect, in some implementations of the fourth aspect, the location of the time unit M belongs to a second location set, the second location set including a plurality of candidate locations of the time unit M, or an end time of the time unit M is equal to a start time of the time unit Y.
With reference to the fourth aspect, in some implementations of the fourth aspect, B is a number of slots included in the handover delay, or B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to: sending a first signaling, wherein the first signaling indicates the time length occupied by the terminal equipment for frequency tuning; or receiving first capability information from the terminal device, wherein the first capability information is used for the network device to determine the time length occupied by the terminal device for frequency tuning.
In a fifth aspect, a communication device is provided, which includes a processing unit configured to perform the information transmission method described in any one of the possible implementation manners of the first aspect and the second aspect.
In a sixth aspect, a communication apparatus is provided, including: a processor coupled to a memory for storing a computer program, and a memory for executing the computer program stored in the memory to cause the communication apparatus to perform the communication method as described in any one of the possible implementations of the first aspect and the first aspect, or to cause the communication apparatus to perform the communication method as described in any one of the possible implementations of the second aspect and the second aspect.
In a seventh aspect, a computer-readable storage medium is provided, which stores instructions that, when executed on a computer, cause the computer to perform the communication method described in any one of the possible implementation manners of the first aspect and the first aspect, or cause the computer to perform the communication method described in any one of the possible implementation manners of the second aspect and the second aspect.
In an eighth aspect, a chip system is provided, which includes: a processor and a communication interface, configured to call and run a computer program from a memory, so that the communication device equipped with the chip system executes the communication method described in any one of the possible implementation manners of the first aspect and the first aspect, or so that the communication device equipped with the chip system executes the communication method described in any one of the possible implementation manners of the second aspect and the second aspect.
In a ninth aspect, a computer program product is provided, which stores computer readable instructions that, when read and executed by a communication apparatus, cause the communication apparatus to perform the method of any one of the possible implementations of the first aspect and any one of the possible implementations of the second aspect and the second aspect.
In a tenth aspect, there is provided a communication system comprising: a network device and a terminal device, the terminal device performing the method of the first aspect and any one of the possible implementations of the first aspect, and the network device performing the method of the second aspect and any one of the possible implementations of the second aspect.
Drawings
Fig. 1 is a schematic diagram of a communication scenario according to an embodiment of the present application.
Fig. 2 is a schematic diagram of information transmission and reception before and after BWP handover.
Fig. 3 is a communication method according to an embodiment of the present application.
Fig. 4 is a schematic diagram of a time domain resource distribution during frequency tuning according to an embodiment of the present application.
Fig. 5 is a schematic diagram of information transmission and reception before and after frequency tuning according to an embodiment of the present application.
Fig. 6 is a schematic diagram of information transmission and reception before and after frequency tuning according to an embodiment of the present application.
Fig. 7 is a schematic diagram of information transmission and reception before and after frequency tuning according to an embodiment of the present application.
Fig. 8 is a schematic diagram of information transmission and reception before and after frequency tuning according to an embodiment of the present application.
Fig. 9 is a schematic block diagram of a communication apparatus according to an embodiment of the present application.
Fig. 10 is a schematic block diagram of a communication apparatus according to an embodiment of the present application.
Fig. 11 is a schematic block diagram of a communication apparatus according to an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
The technical scheme of the embodiment of the application can be applied to various communication systems, for example: examples of the wireless communication system include a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a Frequency Division Duplex (FDD) system, a Time Division Duplex (TDD) system, a universal mobile telecommunication system (universal mobile telecommunication system, UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a fifth generation (5G) system, a UMTS (universal mobile telecommunication system, UMTS), and a next generation (NR) system.
Terminal equipment in the embodiments of the present application may refer to user equipment, access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user devices. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.
The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a base station (nodeB, NB) in a WCDMA system, an evolved node b (eNB or eNodeB) in an LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network, or a network device in a PLMN network, and the like, and the embodiment of the present application is not limited.
In some deployments, the gNB may include a Centralized Unit (CU) and a Distributed Unit (DU). The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.
Fig. 1 is a schematic diagram of a communication system of the present application. The communication system in fig. 1 may include at least one terminal (e.g., terminal 104, terminal 106) and a network device 102. The network device 102 is configured to provide a communication service for a terminal device and access a core network, and the terminal device may access the network by searching for a synchronization signal, a broadcast signal, and the like sent by the network device 102, so as to perform communication with the network. Terminals 104 and 106 in fig. 1 may transmit uplink and downlink with network device 102. For example, the network device 102 may transmit a downlink signal to the terminal 104 and the terminal 106, or may receive an uplink signal transmitted by the terminal 104 and the terminal 106.
It should be noted that the embodiments of the present application may be applied to a communication system including one or more network devices, and may also be applied to a communication system including one or more terminals, which is not limited in the present application.
It should be understood that the communication system may include one or more network devices. A network device may send data or control signaling to one or more terminal devices. Multiple network devices may also send data or control signaling to one or more terminal devices simultaneously.
For a better understanding of the embodiments of the present application, an exemplary description of related concepts of the embodiments of the present application will be made below with reference to fig. 2.
One common scenario where a terminal device performs frequency tuning is BWP handover. Fig. 2 is a diagram illustrating information transmission and reception before and after BWP handover.
201, a network device sends downlink control information DCI to a terminal device on a first time domain resource and a first BWP, where the DCI instructs the terminal device to switch to a second BWP and instructs the terminal device to receive a physical downlink shared channel or send a physical uplink shared channel on a second time domain resource.
Accordingly, the terminal device receives the DCI on the first time domain resource and the first BWP.
The first time domain resource may be a resource in units of a slot, a subframe, a radio frame, a small-slot (mini-slot), or an Orthogonal Frequency Division Multiplexing (OFDM) symbol.
When the network device needs to send downlink data on a new BWP, the network device may send indication information indicating the new BWP to the terminal device to instruct the terminal device to perform BWP handover. The network device may indicate, through the DCI, the time domain resource where the first data channel is located to the terminal device, so that the terminal device completes BWP handover before receiving or transmitting the first data channel.
The DCI instructing the terminal device to switch to the second BWP means that the network device may instruct the terminal device to transmit and receive information using the second BWP. The DCI may include a slot offset between a start position of a slot in which the second time domain resource is located and a start position of a slot in which the first time domain resource is located. When the DCI instructs the terminal device to receive the PDSCH on the second time domain resource, the timeslot offset of the PDSCH relative to the DCI may be denoted as K 0 . When the DCI instructs the terminal device to transmit the physical uplink shared channel PUSCH on the second time domain resource, the slot offset of the physical uplink shared channel PUSCH relative to the DCI may be denoted as K 2 . Fig. 2 shows a time slot offset K of PDSCH 0 Examples of (2). As shown in fig. 2, the terminal device calculates K backward according to the starting position of the time slot n where the first time domain resource is located 0 Obtaining the time slot n + K of the second time domain resource 0 The starting position of (a).
202, performing a handover from said first BWP to said second BWP.
The terminal device may perform the handover from the first BWP to the second BWP after receiving the DCI, or may perform the handover from the first BWP to the second BWP within a period of time after receiving the DCI.
Performing the handover from the first BWP to the second BWP means that the terminal device may transceive information using the second BWP instead of the first BWP. Before the terminal device can transceive information on the second BWP, the terminal device needs to perform a series of preparation tasks such as changing BWP configuration parameters, and thus the terminal device will not perform reception or transmission of information in the course of performing BWP switching. As shown in fig. 2, the terminal device will not perform reception or transmission of information after the first time domain resource ends until the second time domain resource begins. Since the terminal device needs to receive or transmit the first data channel on the second time-domain resource, on the second BWP, the terminal device needs to complete the switch from the first BWP to the second BWP before the second time-domain resource starts.
Due to different device processing capabilities and BWP configuration parameters, the actual latency required for the terminal device to perform BWP handover is different. In order to coordinate the information transmission between the network device and the terminal device, the network device and the terminal device may agree on a BWP handover delay. For example, when the index value of the SCS is 0, the agreed BWP handover delay under the capability of the first type terminal device is 3 slots, and the agreed BWP handover delay under the capability of the second type terminal device is 1 slot; when the index value of the SCS is 1, the appointed BWP switching time delay under the first type terminal equipment capability is 5 time slots, and the appointed BWP switching time delay under the second type terminal equipment capability is 2 time slots; when the index value of the SCS is 2, the appointed BWP switching time delay under the first type terminal equipment capability is 9 time slots, and the appointed BWP switching time delay under the second type terminal equipment capability is 3 time slots; when the index value of the SCS is 3, the agreed BWP switching delay under the capability of the first type terminal device is 17 slots, and the agreed BWP switching delay under the capability of the second type terminal device is 6 slots. The network device may schedule the first data channel according to an agreed BWP handoff delay so that the terminal device may receive or transmit the first data channel on the second BWP.
For convenience of description, the "actual BWP handover latency" may represent the latency actually consumed by the terminal device when performing BWP handover; the "agreed BWP handover delay" may represent the BWP handover delay agreed by the network device and the terminal device. Typically, the agreed BWP handoff latency is longer than the actual BWP handoff latency. The "agreed BWP handoff latency" may also be referred to as an interrupt time. In the present application, the "agreed BWP switch latency" may be a BWP switch latency (BWP switch latency) specified in the communication protocol. The interval between PDCCH and PDSCH in fig. 2 may be represented by a promised BWP handover delay.
The starting position of the agreed BWP handover delay may be the starting position of the time slot where the PDCCH transmitting the DCI is located. The starting position of the agreed BWP handover delay may also be the end position of the third symbol of the slot in which the PDCCH for transmitting DCI is located. The starting position of the agreed BWP handover delay may also be the end position of the last symbol of the PDCCH transmitting the DCI. The starting position of the agreed BWP handover delay may also be the ending position of the time slot where the PDCCH transmitting the DCI is located.
203, receiving or transmitting the first data channel on the second BWP on the second time domain resource.
The terminal device receives or transmits the first data channel on the second BWP after completing the handover from the first BWP to the second BWP. Receiving or transmitting said first data channel may be understood as receiving or transmitting messages or signaling on said first data channel.
As described above, in order to ensure that the terminal device sends and receives messages without errors, the network device and the terminal device may agree on a longer BWP handover delay, which is longer than the BWP handover delay actually required by the terminal device. However, when the difference between the first BWP and the second BWP before and after switching is only that the frequency domain positions of the first BWP and the second BWP are different and the other parameters are all consistent, the terminal device does not need to load other configuration parameters of the BWP and only needs to perform frequency shifting between BWPs, so the required actual BWP switching delay is much shorter than the agreed BWP switching delay. The existing BWP switching mechanism is easy to reduce the resource utilization rate, increase the information processing delay, and reduce the flexibility of information transmission. Therefore, the present application provides a new communication method, which is applicable to a scenario in which a terminal device performs frequency tuning for frequency handover, including a scenario in which the terminal device performs BWP handover and a difference between two BWPs before and after the handover is only when a frequency domain location is different, and the technical solution provided in the embodiments of the present application is also applicable to other scenarios, which is not limited in the present application.
Fig. 3 is a schematic diagram illustrating a communication method according to an embodiment of the present application, in which the network device and the terminal device are executed as the main bodies of the method.
S310, the network device sends first Downlink Control Information (DCI) in a first time slot, and the first DCI indicates the terminal device to receive or send second information in a second time slot.
Correspondingly, the terminal equipment receives the first DCI in the first time slot, and determines a second time slot for receiving or sending second information according to the first DCI, wherein the interval between the second time slot and the first time slot is greater than or equal to B time slots, and B is a positive integer.
Optionally, the terminal device receives the first DCI, and obtains a time slot offset between a first time slot and a second time slot in which the terminal device receives or transmits the second information by analyzing the first DCI, and determines a position of the second time slot according to the time slot offset.
Optionally, the terminal device detects the first DCI, obtains a slot offset between a first slot and a second slot in which the terminal device receives or transmits the second information, and then determines the second slot in which the terminal device receives or transmits the second information.
It should be understood that the process or step of the terminal device parsing the first DCI may be understood as a process of the terminal device acquiring information carried by the first DCI, in other words, the process of acquiring information carried by the first DCI may also not be parsing, but other steps having similar processes, such as detection, which is not limited in this application.
The process of the terminal device analyzing the first DCI may be implemented by the terminal device, and may be implemented within a symbol position range agreed by the network device and the terminal device in a first time slot where the first DCI is received, that is, a Z-th time domain symbol in the first time slot, where Z is greater than or equal to 0, and 0 is a code of a first time domain symbol of the first time slot, or an index value of the time domain symbol. For example, the value of Z may be 3, or may be other values, which is not limited in this application.
For convenience of description, the embodiments of the present application describe the technical solutions of the present application by using parsing, but it cannot be understood that the process of parsing DCI by the terminal device is necessary or necessary, and this description is an exemplary description and is not limited.
It should be understood that, the timeslot offset between the first timeslot and the second timeslot and the switching delay value required by the terminal device to complete the frequency point switching may be maintained in a relationship greater than or equal to each other, for example, the terminal device and the network device may agree that the switching delay value is B timeslots, the timeslot offset between the first timeslot and the second timeslot is greater than or equal to B timeslots, and the B timeslots are the number of timeslots occupied by the frequency point switching, that is, the switching delay value.
For the convenience of understanding the embodiments of the present application, the embodiments of the present application are exemplarily described by taking an example that a slot offset between a first slot and a second slot is equal to B slots.
The terminal device receives the first DCI from the network device, acquires information carried by the first DCI, and may determine a second time slot for transmitting the second information. Specifically, the terminal device may determine a specific time domain resource, or a time unit, or a time location, or a time domain symbol, or other similar words with the same meaning as that of the expression, for transmitting the second information on the second time slot, which is not limited in this application.
Specifically, the terminal device receives the first DCI in a segment of time domain resource of the first time slot, where the segment of time domain resource may be described by a time unit or a time, or may also be expressed by using other similar words with the same expression meaning, which is not limited in this application.
It should be understood that the time domain resource may include a start time position and an end time position, or a start time and an end time, or a start time unit and an end time unit, or an end time of the start time unit and a start time of the end time unit, and the time unit may be measured by a time domain symbol, or may be an absolute time, such as millisecond, microsecond, second, and the like, which is not limited in this application.
For convenience of description, the embodiments of the present application describe the related technical solutions of the embodiments of the present application in time units, but do not deny expressions of other similar words, such as time, starting time and ending time of a time unit, and the like.
And S320, the terminal equipment performs frequency tuning and receives or transmits second information in the second time slot.
And the terminal equipment executes frequency tuning in the switching time delay, wherein the frequency tuning is used for realizing frequency point switching and can realize that the terminal equipment receives or sends second information on a new frequency point.
The time domain position of the terminal device for completing the frequency tuning within the handover delay may be predefined, or may be a time domain position indicating the frequency tuning by sending a signaling to the terminal device by the network device, or may be a time domain position determined by the terminal device according to its own capability and used for performing the frequency tuning, and sending capability information to the network device for the network device to determine the time domain position of the terminal device for performing the frequency tuning.
Optionally, the network device may first receive the capability information reported by the terminal device, and send a signaling to the terminal device to indicate the time domain position of the frequency tuning.
Optionally, in the technical solution of the embodiment of the present application, a time unit or other words may be selected to describe a time domain position where the terminal device performs frequency tuning, or be used to describe a time length where the terminal device performs frequency tuning, and the time unit may be in dimensions of seconds, milliseconds, microseconds, or the like, or may be described by using a time domain symbol as a dimension, or may be described by using other similar words with a meaning of time length, such as time, and the like, which is not limited in this application.
The terminal device can not only complete the frequency tuning within the switching delay, but also continue to perform data transmission and reception for a certain length of time before and after the frequency tuning is performed.
S320a, the terminal device is able to perform reception or transmission of the first information in a time range after reception of the first DCI until the start of performing frequency tuning.
Illustratively, the terminal device can receive the Nth time slot of the first DCI 1 Continuing reception or transmission of the first information for a period of time after the symbol until the frequency tuning is startedAnd (5) feeding.
Alternatively, N 1 A value of greater than 3, e.g. N 1 ＝5，N 1 ＝6，N 1 7; or, N 1 The value of (A) is not limited to more than 3, e.g. N 1 ＝3，N 1 ＝4，N 1 ＝5，N 1 ＝6，N 1 This is not limited in this application to 7.
Optionally, the terminal device determines the start symbol N for specifically sending the first information according to its own capability information 0 And sending capability information, N, to the network device 1 The numerical value of (2) is not less than N determined by the terminal equipment according to the self capability information 0 。
Alternatively, N 0 ＝2，N 0 ＝3，N 0 ＝4，N 0 ＝5，N 0 This is not limited in this application to 6.
Illustratively, the terminal device is capable of N after an end time unit of receiving the first DCI during a time slot in which the first DCI is received 2 The reception or transmission of the first information is continued for a length of time after the symbol until the frequency tuning is started.
Illustratively, the terminal device can be capable of receiving the first DCI during a slot in which the first DCI is received, after an end time unit of the first DCI 2 The reception or transmission of the first information is continued for a length of time from the start of the symbol until the start of the frequency tuning.
Alternatively, N 2 ＝0，N 2 ＝1，N 2 ＝2，N 2 ＝3，N 2 This is not limited in any way by the present application as 4.
Optionally, the terminal device determines, according to its own capability information, a symbol interval amount N that can transmit or receive the first information relative to receiving the end symbol of the first DCI 3 And sending capability information, N, to the network device 2 The value of (A) is not less than N determined by the terminal device according to the self capability information 3 。
Alternatively, N 3 ＝0，N 3 ＝1，N 3 ＝2，N 3 ＝3，N 3 4, this applicationThis is not limitative.
Illustratively, the terminal device can receive the Nth time slot of the first DCI 1 N after one symbol 2 The reception or transmission of the first information is continued for a length of time after the symbol until the frequency tuning is started.
Illustratively, the terminal device can receive the Nth time slot of the first DCI 1 N after one symbol 2 The reception or transmission of the first information is continued for a length of time from the start of the symbol until the start of the frequency tuning.
Alternatively, N 1 ＝3，N 1 ＝4，N 1 ＝5，N 1 ＝6，N 1 This is not limited in this application to 7.
Alternatively, N 2 ＝0，N 2 ＝1，N 2 ＝2，N 2 ＝3，N 2 This is not limited in this application to 4.
Optionally, the terminal device determines, according to its own capability information, that the starting symbol of the first information is specifically sent relative to the nth of the time slot in which the first DCI is received 1 Symbol interval quantity N after symbol 3 And sending capability information, N, to the network device 2 The value of (A) is not less than N determined by the terminal device according to the self capability information 3 。
For the convenience of understanding, the initial time unit of the terminal device for receiving or transmitting the first information is defined as the initial moment of the time unit P. Possible positions of time unit P include N of the time slot described above including detecting the first DCI and receiving the first DCI 1 One symbol, N of time slot where the first DCI is received 1 After a symbol, receiving the Nth time slot of the first DCI 1 N after the end time unit of the symbol start, receiving the first DCI 2 An Nth symbol after the symbol and after an end time unit of receiving the first DCI 2 The Nth time slot where the symbol begins and the first DCI is received 1 N after one symbol 2 After a symbol, receiving the Nth time slot of the first DCI 1 N after one symbol 2 The position of the symbol start, etc., to which the present application is directedAnd are not limited.
S320b, the terminal device is capable of receiving or transmitting the third information in a time range after the frequency tuning is performed to before the end time of the start time unit of the second slot.
Illustratively, if the terminal device performs frequency tuning during time domain resources for receiving or transmitting the first information, and the first information is triggered by the DCI, and the frequency tuning is not triggered by the DCI associated with the first information, the terminal device discards the first information; and/or if the terminal equipment executes frequency tuning during time domain resources for receiving or sending the third information, the third information is triggered by the DCI, and the frequency tuning is not triggered by the DCI associated with the third information, the terminal equipment discards the third information.
It should be understood that the terminal device is capable of receiving or sending information, and may be understood as the terminal device has the capability of receiving the indication signaling sent by the network device; it can also be understood that the terminal device has the capability of receiving or transmitting information based on the indication signaling; it is also understood that the terminal device has the capability to send indication signaling or data information. The indication signaling may be uplink control signaling, downlink control signaling, or RRC signaling, or other signaling, which is not limited in this application.
It should be understood that the end time unit of the terminal device performing the frequency tuning may coincide with the start time unit of the second time slot, on which condition the terminal device does not perform the reception or transmission of the third information.
It should be understood that, in the above exemplary description, the terminal device is capable of receiving or transmitting the first information in a time range after the time unit P until the start of performing the frequency tuning, or the terminal device is capable of receiving or transmitting the third information in a time range after the frequency tuning is performed until the start time unit of the second slot, or the terminal device is capable of receiving or transmitting the first information and the third information in the above two time ranges.
It should be understood that, in the above exemplary description, the terminal device can occupy the entire time length in any one of the two time ranges, or can partially occupy a part of the time length in any one of the two time ranges, and the terminal device can not receive or transmit the first information and the third information.
The time length for the terminal device to parse the first DCI may be determined in a predefined manner, that is, the time length for the terminal device to parse the DCI may be determined by using a protocol with the network device.
Optionally, the time length for the terminal device to parse the first DCI may be determined by the network device sending signaling to the terminal device.
Alternatively, the time length for the terminal device to parse the first DCI may be determined by determining, by the terminal device, the time length for performing DCI parsing according to the capability information of the terminal device, and sending the capability information to the network device.
Optionally, the time length for the terminal device to parse the first DCI may be determined by the terminal device directly, and the capability information is sent to the network device, where the network device does not need to send the indication information to the terminal device. The starting time, or starting time unit, or starting time domain symbol, and the ending time, or ending time unit, or ending time domain symbol, of the terminal device for frequency tuning may be predefined, that is, the starting time, or ending time domain symbol, of the terminal device may determine the frequency tuning starting time in a protocol manner with the network device; or the mode that the network equipment sends signaling to the terminal equipment, and the signaling indicates the starting time of frequency tuning of the terminal equipment; the terminal device may determine the starting time of performing frequency tuning according to its own capability information, and may determine the manner of sending the capability information to the network device. For a specific manner of determining the ending time of the frequency tuning performed by the terminal device, reference may be made to the foregoing description of the starting time of the frequency tuning performed by the terminal device, and details are not described herein again.
It should be understood that the expressions of the start time, the start time unit, the start time domain symbol, the end time of the start time unit, etc. are equivalent expressions, and the present application does not limit the present application.
In the above steps, the positions of the start time unit and the end time unit used by the terminal device to perform frequency tuning may respectively include a plurality of candidate positions, for example, the position of the time unit N may be equal to the set {0, L } 1 ，L 2 ，L 3 ，…，L M Numerical value of any one of the elements, wherein, 0, L 1 ，L 2 ，L 3 ，…，L M The candidate positions of the start time unit or the end time unit, where the terminal device performs frequency tuning, are associated with each other, and a signaling mode may be sent to the terminal device by the network device, or a suitable position may be determined by the terminal device according to its own capability information, which is not limited in this application.
It should be understood that the set is a location set composed of a plurality of candidate locations of the time unit N, and the candidate locations may be determined in a predefined manner, may also be specifically configured in a signaling manner, may also be specifically determined according to capability information of the terminal device, and this is not limited in this application.
The manner of determining the time length for the terminal device to complete frequency tuning may also refer to the foregoing description of the start time of frequency tuning performed on the terminal device, and is not described herein again.
It should be understood that, in the above technical solution, the first information, the second information, and the third information may be one or more of an uplink shared channel, a random access channel, an uplink demodulation reference signal, a sounding reference signal, downlink control information, a downlink shared channel, and a downlink demodulation reference signal, and the first information, the second information, and the third information may be the same type of information or different types of information, which is not limited in this application.
It should be understood that when the terminal device performs the actions of receiving or transmitting the first information, the second information, and the third information, the network device may also perform the corresponding actions of receiving or transmitting the corresponding information at the corresponding time domain position accordingly.
Illustratively, the network device receives or transmits the second information in the second time slot, and the network device receives or transmits the first information in the time range between the end time when the first DCI is transmitted or the terminal device finishes analyzing the first DCI and the initial time unit for the terminal device to perform frequency tuning.
Illustratively, the network device receives or transmits the third information in a time range between an end time unit when the terminal device ends the frequency tuning and a start time unit of the second slot.
It should be understood that the network device may determine the end time of the terminal device parsing the first DCI, or the end time unit, or the end time domain symbol, based on the end time of the first DCI transmission or the end time of the first DCI reception, and jointly parse the time length of the DCI.
The ending time unit for the network device to send the first DCI and the ending time unit for the terminal device to receive the first DCI may be the same time unit or different time units, for example, a time advance, which is not limited in this application.
Through the technical scheme, the terminal equipment can transmit the first information and the third information in the time periods before and after the frequency tuning is executed, so that the flexibility of data transmission is improved, the resource utilization rate is improved, and the information transmission time delay is reduced. For example, in a specific scenario of BWP switching, i.e. BWP before and after switching only involves a change in frequency domain position, the other BWP configuration parameters are the same. The terminal device has the ability to continue the transmission of information during the BWP handoff delay. During the time delay of the BWP switching and before and after the time domain position of the frequency tuning, the terminal device continues to transmit information, which can improve the utilization rate of the time domain resource to the greatest extent and reduce the time delay of information processing. On the other hand, the terminal device may select a different time domain resource location to perform frequency tuning during BWP handover delay based on the capability difference of the terminal device, for example, the terminal device has the capability of performing frequency tuning quickly, and if the network device or the terminal device prejudges that the communication quality in the frequency domain range after frequency tuning is higher, the terminal device may perform frequency tuning quickly and switch to a new frequency domain range, so as to transmit information in the new frequency range earlier; or, when there is a need to receive or transmit information within a specific time domain resource range during the delay of BWP handover, the terminal device or the network device may adjust the location where frequency tuning is performed to be outside the time domain range of the transmission information, or the terminal device may discard the transmission information, thereby avoiding interruption of data transmission and waste of data transmission resources caused by the terminal device performing frequency domain tuning.
For example, in another scenario, the terminal device implements frequency point switching based on frequency tuning, that is, the terminal device receives the first downlink control information DCI in the first time slot; and the terminal equipment determines a second time slot for transmitting second information according to the first DCI, wherein the frequency point switching is not realized by BWP switching. The frequency tuning can be performed by flexibly selecting different time domain resource positions based on the capability difference of the terminal equipment and the requirement of the terminal equipment. For example, in the time range from the first time slot starting position to the second time slot starting position, the terminal device has the ability to perform frequency tuning quickly, and the network device or the terminal device prejudges that the communication quality in the frequency domain range after frequency tuning is higher, the terminal device can perform frequency tuning quickly and switch to a new frequency domain range, so that information can be transmitted in the new frequency range earlier; or, there is information transmission in the time range from the first time slot starting position to the second time slot starting position, and the terminal device or the network device may adjust the position where the frequency tuning is performed to be outside the time domain range of the transmission information, or the terminal device may discard the transmission information, thereby avoiding the interruption of data transmission caused by the terminal device performing the frequency domain tuning.
A communication method according to an embodiment of the present application will be described in detail with reference to fig. 4.
401, the terminal device receives the first DCI from the network device in slot L, and ends the reception of the first DCI at the end time of time unit K.
Optionally, the terminal device receives the first DCI from the network device on time slot L, and ends the reception of the first DCI at time unit K.
Optionally, the terminal device receives the first DCI from the network device in time slot L, and ends receiving the first DCI at time K.
402, the terminal device completes reception of the first DCI at the end time of time unit K of the first slot, and the terminal device completes analysis of the first DCI at the end time of time unit R.
Optionally, the terminal device completes reception of the first DCI at any time within a time range from a start time of the time slot in which the first DCI is located to an end time of the time unit K, and the terminal device completes analysis of the first DCI at any time within a time range from the start time of the time slot in which the first DCI is located to the end time of the time unit R.
It should be understood that the length of the time unit R may be in units of time domain symbols, or in units of seconds, milliseconds, and microseconds, which is not limited in this application. For convenience of description, the embodiments of the present application make clear and complete descriptions of technical solutions of the embodiments of the present application in units of time domain symbols.
It should be understood that the length of the time unit R is a predefined integer, or is configured in a signaling manner, or is determined according to the capability of the terminal device.
402a, said time unit K may also be the nth within the first time slot range 1 A time domain symbol, and/or the time unit R is N after the end time unit of the first DCI received by the terminal equipment in the first time slot range 2 A time range in which one time domain symbol lasts.
Exemplarily, N 1 、N 2 Is a predefined integer greater than or equal to 0; or, N 1 Is a predefined integer greater than 3; or the terminal equipment determines the time unit N for sending the first information according to the self capability information 0 And N 3 And send capability information to the network device, N 1 The value of (A) is not less than N determined by the terminal device according to the self capability information 0 ，N 2 The value of (A) is not less than that of the terminal equipment according to the self capability informationN of information determination 3 。
403, the terminal device receives or sends the first message between time unit T and time unit N, where time unit N is a starting time unit, or a starting time, or an ending time of the starting time unit, and the starting time of time unit T is not earlier than the ending time of time unit K, or the starting time of time unit T is not earlier than the ending time of time unit R.
Optionally, the terminal device is receiving the nth of the time slot in which the first DCI is located 1 symbol/Nth 1 After a symbol/Nth 1 The reception or transmission of the first information is continued for a length of time from the start of the symbol until the start of the frequency tuning.
Optionally, the terminal device can be N after the end time unit of receiving the first DCI 2 The reception or transmission of the first information is continued for a length of time after/from the beginning of the symbol until the frequency tuning is started.
Alternatively, the terminal device can also receive or transmit the third information between a time unit M and a time unit Y, the time unit N being a starting time unit or a starting time or an ending time of the starting time unit for the terminal device to perform frequency tuning, the time M being an ending time unit or an ending time or a starting time of the ending time unit for the terminal device to perform frequency tuning, and the time unit Y being a starting time unit or a starting time or an ending time of the second time slot.
Optionally, if the terminal device performs frequency tuning during time domain resources for receiving or transmitting the first information, the first information is triggered by the DCI, and the frequency tuning is not triggered by the DCI associated with the first information, the terminal device discards the first information.
Optionally, if the terminal device performs frequency tuning during time domain resources for receiving or transmitting third information, where the third information is triggered by the DCI, and the frequency tuning is not triggered by the DCI associated with the third information, the terminal device discards the third information.
It should be understood that, in the embodiment of the present application, the switching delay value is a dimension of the number of slots.
It should be understood that the start time unit, the end time unit, and the time length, or the start time, the end time, and the time length, which are used by the terminal device to perform frequency tuning, may be determined in a predefined manner, may be determined by the network device sending signaling to the terminal device, or may be determined by the terminal device according to its own capability information and sending the capability information to the network device.
Optionally, the network device may first receive the capability information reported by the terminal device, and determine to send a signaling to the terminal device, where the signaling is used to indicate a time domain position and a time length of frequency tuning; or, the network device receives the capability information reported by the terminal device, and does not send a signaling to the terminal device any more, and the method is not limited in the present application.
The terminal device performs frequency tuning and receives or transmits second information on a second time slot 404.
It should be understood that when the terminal device performs actions such as receiving or sending the first information, the second information, and the third information, the network device may also perform corresponding actions of receiving or sending information at corresponding time domain positions, for which specific contents refer to the foregoing description of fig. 3, which is not repeated herein.
It should be understood that, in the above steps, the position of the start time unit N and the position of the end time unit M used by the terminal device to perform frequency tuning may respectively include a plurality of candidate positions, for example, the time unit N may be equal to the set {0, L [ ] 1 ，L 2 ，L 3 ，…，L M Numerical value of any one of the elements, wherein, 0, L 1 ，L 2 ，L 3 ，…，L M The method is related to a plurality of candidate positions of a starting time unit N or an ending time unit M of the terminal equipment for performing frequency tuning, and can be determined by a mode that the network equipment sends signaling to the terminal equipment, or can be determined by a mode that the terminal equipment determines a proper position according to self capability informationPlease do not limit this.
It should be understood that the start time unit N and the end time unit M, in which the frequency tuning is performed, may be associated with a symbol index of a time slot in which the frequency tuning is located; alternatively, the start time unit N and the end time unit M performing the frequency tuning may determine candidate positions of a plurality of start time units N and end time units M in a predefined manner, the positions of N and M being associated with the candidate position index; or, the start time unit N and the end time unit M for performing frequency tuning are associated with a symbol interval of the start time unit/end time unit position of the frequency tuning relative to the start position of the time slot in which the first DCI is received and/or the start position of the second time slot, which is not limited in this application.
Through the technical scheme, the problem of data transmission interruption caused by frequency tuning can be solved, the resource utilization rate is improved, the information transmission time delay is reduced, and the flexibility of data transmission of the terminal equipment is improved.
A technical solution of the embodiment of the present application will be described in detail with reference to fig. 5 to 6. To briefly describe the embodiments of the present application, in the embodiments of the present application, taking the first information, the second information, and the third information as Physical Downlink Shared Channels (PDSCHs) as examples, a time slot offset K between a first time slot where the first DCI is received and a second time slot where the PDSCH is received is used as an offset K 0 For example, the switching delay value of the frequency point switching is 2 time slots, and the initial time unit N for performing frequency tuning is associated with the symbol interval between the starting positions of the second time slots where the second information is received or sent, as an example, the technical solution of the embodiment of the present application is clearly and completely described, and for the description of the first information, the second information, and the third information, reference may be made to the relevant description in fig. 3 and fig. 4.
Fig. 5 is a schematic diagram illustrating information transceiving before and after frequency tuning according to an embodiment of the present application, and is specifically illustrated in fig. 5.
501, a terminal device receives a first DCI in slot L, where the first DCI instructs the terminal device to receive or transmit second information in slot L + 2.
The terminal device performs frequency tuning and receives or transmits second information in said second time slot 502.
It should be understood that the terminal device receives or transmits the first information in the period of time between the time when the first DCI is analyzed and the start time unit for starting to perform the frequency tuning, or receives or transmits the first information in the period of time after the specified symbol position/the specified symbol position of the time slot in which the first DCI is received and the start time when the frequency tuning is started; the terminal device may be configured to receive or transmit the third information in the period between the ending time of performing the frequency tuning and the starting time of the second time slot, which may specifically refer to the foregoing description and is not described herein again.
The initial time unit N for which the terminal device performs frequency tuning is associated with H symbol intervals between the time domain starting position of the frequency tuning with respect to the second slot starting position.
Optionally, the value of H is predefined.
Optionally, the value of H is configured by the network device through signaling.
Optionally, the value of H is reported to the network device by the terminal device based on its own capability, for example, the value of N is zero, for example, the value of H is a positive integer.
The value of H is equal to the set 0, L 1 ，L 2 ，L 3 ，…，L M The value of one element in. Wherein, M, L 1 ，L 2 ，L 3 ，…，L M Is a positive integer. K values of H equal to the set {0, L 1 ，L 2 ，L 3 ，…，L M The values of K elements in the structure, wherein the value of K is less than or equal to the value of M.
The value of H is equal to the value of one element in the set 0, or,
the value of H is equal to the set { L } 1 The value of an element in (f), or,
the value of H is equal to the set L 2 The value of an element in (j), or,
the value of H is equal to the set {0, L 1 The value of an element in (f), or,
the value of H is equal to the set {0, L 2 The value of an element in (f), or,
the value of H is equal to the set { L } 1 ，L 2 The value of an element in (f), or,
the value of H is equal to the set {0, L 1 ，L 2 The value of one element in.
Illustratively, the time domain start time unit tuned in frequency of FIG. 5 is associated with a symbol interval H, and the value of H is equal to the set { L } 1 ，L 2 ，L 3 The technical solution of the embodiment of the present application is described by taking the numerical value of one element in the } and the BWP switching time delay as 2 time slots as an example, where the BWP switching only involves shifting of frequency points, and thus the switching scenario is suitable for the communication method described in the embodiment of the present application.
The terminal device receives a first DCI on a first BWP of a first frequency point and a time slot L, and the first DCI is used for indicating the terminal device to receive a PDSCH on a second BWP of a second frequency point and a time slot L +2, and 3 values of a value H which can indicate a frequency tuning position executed by the terminal device have, wherein the 3 values of the H are equal to a set { L } 1 ，L 2 ，L 3 Values of three elements in the structure. Wherein L is 1 Is the symbol interval of the first candidate position for frequency tuning with respect to the starting boundary of time slot L +2, L 2 Is the symbol interval of the second candidate position for frequency tuning with respect to the starting boundary of time slot L +2, L 3 Is the symbol interval of the first candidate position for frequency tuning relative to the starting boundary of slot L + 2. In the scenario illustrated in FIG. 5, L 3 The number of the time domain continuous symbols for frequency tuning is equal to the number of the time domain continuous symbols for frequency tuning, namely the number of the time domain symbols for frequency tuning of the terminal equipment.
Optionally, the network device indicates the time domain position of the frequency tuning by 1 bit, indicating the set of time domain positions { L } 1 ，L 2 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 3 One of them; or, indicating a set of time domain locations { L 2 ，L 3 One of (1) }; or, indicating a time domain location { L 1 Or, indicates a temporal location { L } 2 }; or, indicating a time domain location { L 3 }。
Optionally, the network device indicates the time domain position of the frequency tuning by 2 bits, indicating the set of time domain positions { L } 1 ，L 2 ，L 3 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 3 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 3 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 3 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 2 ，L 3 ，L 4 One of them.
Optionally, the time domain position where the terminal device performs frequency tuning is determined according to the capability of the terminal device, for example, the terminal device may indicate the time domain position to the network device by 1 bit, indicating the time domain position set { L } 1 ，L 2 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 3 One of (1) }; or, indicating a set of time domain locations { L 2 ，L 3 One of (1) }; or, indicating a time domain location { L 1 Or, indicates a temporal location { L } 2 }; or, indicating a time domain location { L 3 }。
Optionally, the terminal device indicates the time domain position of the frequency tuning by 2 bits, indicating the set of time domain positions { L } 1 ，L 2 ，L 3 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 3 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 3 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 3 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 2 ，L 3 ，L 4 One ofAnd (4) seed selection.
Optionally, the time domain position where the terminal device performs the frequency tuning is predefined, e.g. the predefined position is a set of time domain positions { L } 1 ，L 2 One of (1) }; alternatively, the predefined location is a set of time domain locations { L } 1 ，L 3 One of (1) }; alternatively, the predefined location is a set of time domain locations { L } 2 ，L 3 One of (1) }; alternatively, the predefined position is { L } 1 }; alternatively, the predefined time domain position is { L } 2 }; alternatively, the predefined time domain position is { L } 3 E.g. the predefined location is a set of time domain locations L 1 ，L 2 ，L 3 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 3 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 2 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 1 ，L 3 ，L 4 One of (1) }; or, indicating a set of time domain locations { L 2 ，L 3 ，L 4 One of them.
Through the technical scheme, the technical scheme of the embodiment of the application is suitable for solving the problem that when the only difference between two BWPs before and after BWP switching is that the frequency point positions are different, other related BWP parameters are the same, and the frequency point switching is realized through frequency tuning.
Fig. 6 is a schematic diagram illustrating information transmission and reception before and after frequency tuning according to an embodiment of the present application. As shown in particular in fig. 6.
The time domain position of the terminal device performing frequency tuning may be indicated by the network device through a signaling manner, may also be determined through capability information of the terminal device, may also be determined in a predefined manner, and may refer to the foregoing description, which is not described herein again.
During BWP handover, the terminal device performs frequency tuning at a specified location and transmits data in a frequency range where a first BWP is located and/or transmits data in a frequency range where a second BWP is located.
Exemplarily, the terminal device is capable of receiving the first data information PDSCH1 after receiving the first DCI in the frequency range in which the first BWP is located in the time slot L, i.e., the first frequency point, and the time domain resources of PDSCH1 are indicated by the third DCI received by the terminal device before the time slot L, and/or the terminal device receives the second data information PDSCH2 in the time slot L +1 before performing frequency tuning, and the time domain resources of PDSCH2 are indicated by the fourth DCI received by the terminal device before the time slot L, and/or the terminal device receives the second DCI in the frequency range in which the second BWP is located in the time slot L +1 after performing frequency tuning by the terminal device.
It should be understood that the terminal device does not perform frequency tuning during PDSCH1, PDSCH2 and second DCI reception.
Illustratively, the terminal device will discard PDSCH1 if the terminal device performs frequency tuning in the time domain resource range in which PDSCH1 is received, and/or will discard PDSCH2 if the terminal device performs frequency tuning in the time domain resource range in which PDSCH2 is received, and/or will discard the second DCI if the terminal device performs frequency tuning in the time domain resource range in which the second DCI is received.
Through the technical scheme, the terminal equipment or the network equipment can flexibly schedule or configure the time domain position and the time length of frequency tuning. The terminal device may be configured to receive or transmit data information during the frequency point switching even when data transmission is interrupted due to BWP switching, and may be configured to receive or transmit control information or data information during a time interval when the ending time of the frequency tuning and the starting time of the second slot have a certain time length.
Fig. 5 and fig. 6 describe in detail an application manner of the technical solution described in the embodiment of the present application in a BWP handover scenario. In a BWP handover scenario, when two BWPs before and after handover only relate to different frequency domain positions and other parameters are consistent, according to the technical solution described in the embodiments of the present application, it is possible to implement that, in a handover delay of frequency point handover, a terminal device implements receiving or sending of first information and third information, and at the same time, it is also possible to flexibly schedule or allocate a time domain position and a time length for the terminal device to perform frequency tuning, thereby reducing information processing delay and increasing flexibility of data transmission.
Another application scenario of the embodiment of the present application will be specifically described below with reference to fig. 7 and fig. 8. In the application scenario, the terminal device receives first downlink control information DCI in a first time slot, where the first DCI indicates the terminal device to receive or transmit second information in a second time slot. And the terminal equipment realizes the receiving or sending of the second information on the second time slot by the frequency tuning. Unlike the scenarios shown in fig. 5 and 6, the terminal device can receive or transmit the second information at the new frequency domain position only by frequency tuning without BWP switching. The method and the device have the same characteristics as the technical scheme implementation scene of the application.
As described above, flexible scheduling of data transmission can be achieved by flexibly scheduling or allocating the time domain position where the terminal device performs frequency tuning, and instructing the rules of receiving or sending the first information and the third information before and after the frequency tuning.
Similarly, for convenience of briefly describing the embodiments of the present application, in the following fig. 7 and fig. 8, taking the first information, the second information, and the third information all being PDSCH as an example, the terminal device receives a time slot offset K between a first time slot in which the first DCI is received and a second time slot in which the second information is received or transmitted 0 For example, 2 time slots are taken as an example, and the number of symbol intervals between the initial time unit N for the terminal device to perform frequency tuning and the starting position of the second time slot is taken as an example to correlate, so that a clear and complete description is made on the technical solution of the embodiment of the present application.
Fig. 7 is a schematic diagram illustrating information transmission and reception before and after frequency tuning according to an embodiment of the present application.
It should be understood that, unlike the scenario shown in fig. 5, in the scenario shown in fig. 7, the interval between the starting position of the terminal device for frequency tuning and the starting position of the second time slot may be 0, that is, the terminal device may perform frequency tuning in the first several time domain symbols of the second time slot, in which scenario, the terminal device no longer performs the reception or transmission of the third information between time unit M and time unit Y.
The initial time unit N for which the terminal device performs frequency tuning is associated with H symbol intervals between the start positions of the second slots. For details, please refer to the description of fig. 5, which is not repeated herein.
It should be understood that the time domain position H of the frequency tuning may be equal to the set 0, L 1 ，L 2 ，L 3 ，…，L M The value of an element in the frequency map, which may be affected by one or more of the subcarrier spacing value of the first frequency point and the second frequency point, the data type of the first information and the second information, and the like.
Illustratively, if the subcarrier spacing of the first frequency point is greater than the subcarrier spacing of the second frequency point, the value of H may be equal to 0, or if the subcarrier spacing of the first frequency point is less than the subcarrier spacing of the second frequency point, the value of H may be equal to the set { L { (L) } 1 ，L 2 ，L 3 ，…，L M Value of an element of 1 ，L 2 ，L 3 ，…，L M Is an integer greater than 0.
Illustratively, when the data transmitted on the first frequency point is a Configuration Grant (CG) signal and the data transmitted on the second frequency point is a downlink shared channel and/or an uplink shared channel, the value of N may be equal to the set { L } 1 ，L 2 ，L 3 ，…，L M Value of an element of 1 ，L 2 ，L 3 ，…，L M Is an integer greater than 0; or, when the data transmitted at the second frequency point is a CG signal and the data transmitted at the first frequency point is a downlink shared channel and/or an uplink shared channel, the value of H may be equal to 0.
Exemplary embodiments of the inventionWhen the data transmitted at the first frequency point is a CG signal and the data transmitted at the second frequency point is a downlink shared channel and/or an uplink shared channel, the value of H may be set { L } when the subcarrier spacing at the first frequency point is greater than the subcarrier spacing at the second frequency point, or when the subcarrier spacing at the first frequency point is less than the subcarrier spacing at the second frequency point 1 ，L 2 ，L 3 ，…，L M Any one of said L 1 ，L 2 ，L 3 ，…L M Is an integer greater than 0; or, when the data transmitted at the second frequency point is a CG signal and the data transmitted at the first frequency point is a downlink shared channel and/or an uplink shared channel, the value of H may be 0 no matter the subcarrier spacing of the first frequency point is greater than the subcarrier spacing of the second frequency point, or the subcarrier spacing of the first frequency point is less than the subcarrier spacing of the second frequency point.
Exemplarily, when the transmission data on the first frequency point is a downlink shared channel and/or an uplink shared channel, the transmission data on the second frequency point is a downlink shared channel and/or an uplink shared channel, and/or the interval of the subcarriers where the first frequency point is located is greater than the interval of the subcarriers where the second frequency point is located, and/or the interval of the subcarriers where the first frequency point is located is less than the interval of the subcarriers where the second frequency point is located, the first number may take the value of a set {0, L {, where L is the set of values 1 ，L 2 ，L 3 ，…，L M One of them.
The determination of the priority of the data may be determined by the terminal device based on its own capability judgment, may be determined by the network device, or may be determined in an agreed rule manner, for example, according to a priority order of demodulation reference signal (DMRS) > PDCCH > pdsch (pusch), so as to reduce the influence on the data with high priority as much as possible.
Through the above exemplary description, when the priority or importance of the data type transmitted on the first frequency point is higher than the priority or importance of the data type transmitted on the second frequency point, the frequency tuning can be preferentially performed on the time slot where the frequency point where the data with lower importance is located, and in this way, the influence of the frequency tuning on the transmission of the data with higher importance can be avoided; or when the subcarrier interval of the first frequency point is different from the subcarrier interval of the second frequency point, the frequency tuning can be preferentially carried out in the time slot in which the frequency point with the lower subcarrier interval is positioned.
Fig. 8 is a schematic diagram illustrating information transmission and reception before and after frequency tuning according to an embodiment of the present application. As shown in particular in fig. 8.
It should be understood that, unlike the scenario shown in fig. 7, in the scenario shown in fig. 8, after the terminal device receives the first DCI in the slot L at the first frequency point, the terminal device is able to receive the first data information PDSCH1, the time domain resources of PDSCH1 are indicated by the third DCI received by the terminal device before the slot L, and/or the terminal device receives the second data information PDSCH2 in the slot L +1 and before performing frequency tuning, the time domain resources of PDSCH2 are indicated by the DCI received by the terminal device before the slot L, to indicate the time domain resources of its corresponding data channel, and/or the terminal device receives the second DCI in the slot L +1 and after the terminal device performs frequency tuning.
It should be understood that the terminal device does not perform frequency tuning during PDSCH1, PDSCH2 and second DCI reception.
Through the technical scheme, the terminal equipment or the network equipment can flexibly schedule or configure the time domain position and the time length of frequency tuning. The terminal device may also receive or transmit the control information in the time interval when the data transmission is interrupted due to the frequency tuning, and when the ending time of the frequency tuning and the starting time of the second time slot have a certain time length, the terminal device may also receive or transmit the control information in the time interval, and may also receive or transmit the data information, thereby implementing flexible scheduling of data transmission.
Fig. 9 shows a schematic block diagram of a communication device 900 according to an embodiment of the present application. The communication device may be a terminal device, or may be a component (e.g., a chip or a circuit) that can be used in a terminal device. As shown in fig. 9, the communication apparatus 900 may include a transceiver 901 and a processing unit 902.
A transceiving unit 901, configured to receive a first DCI in a first time slot, where the first DCI is used to instruct a terminal device to transmit a second time slot of second information, where a distance between the second time slot and the first time slot is greater than or equal to B time slots, where B is a positive integer.
The transceiving unit 901 is further configured to receive or transmit second information on a second timeslot.
The transceiver 901 is further configured to receive or transmit the first information and the third information.
A processing unit 902, configured to determine a second time slot for transmitting second information according to the first DCI, and further configured to perform frequency tuning.
For specific functions and beneficial effects of the transceiver 901 and the processing unit 902, reference may be made to the contents of the foregoing method, and details are not described herein again.
In a possible embodiment, a communication device is also provided, which may be a terminal device or may be a component (e.g., a chip or a circuit, etc.) for a terminal device. The communication device may include a transceiver and a processor, and optionally, may also include a memory. Wherein the transceiver may be configured to implement corresponding functions and operations corresponding to the transmitting unit and the processing unit, and the processor may be configured to implement corresponding functions and operations of the processing unit. The memory can be used for storing execution instructions or application program codes, and is controlled by the processor to execute, so as to implement the communication method provided by the above embodiment of the application; and/or may be used to temporarily store some data and instruction information, etc. The memory may exist independently of the processor, in which case the memory may be coupled to the processor via a communication line. In another possible design, the memory may also be integrated with the processor, and the embodiment of the present application is not limited thereto.
It should be understood that, a communication apparatus according to the embodiment of the present application shown in fig. 9 may also be a network device, and may also be a component (e.g., a chip or a circuit) that can be used in the network device. As shown in fig. 9, the communication apparatus 900 may include a transceiver 901 and a processing unit 902.
A transceiving unit 901, configured to send a first DCI, where the first DCI is used to instruct a terminal device to transmit a second time slot of second information, and is further used to instruct the second time slot to be spaced from the first time slot by more than or equal to B time slots, where B is a positive integer.
The transceiving unit 901 is further configured to receive or transmit second information in a second time slot.
The transceiving unit 901 is further configured to receive or transmit the first information and the third information.
The processing unit 902 may be configured to determine a time domain position and a time domain length of the frequency tuning.
For specific functions and beneficial effects of the transceiver 901 and the processing unit 902, reference may be made to the contents of the foregoing method, and details are not described herein again.
In one possible embodiment, a communication apparatus is also provided, and the communication apparatus may be a network device or may be a component (e.g., a chip or a circuit, etc.) for the network device. The transmission means may comprise a transceiver and a processor and optionally a memory. Wherein the transceiver may be configured to implement corresponding functions and operations corresponding to the transmitting unit and the processing unit, and the processor may be configured to implement corresponding functions and operations of the processing unit. The memory can be used for storing execution instructions or application program codes, and is controlled by the processor to execute, so as to implement the communication method provided by the above embodiment of the application; and/or may be used to temporarily store some data and instruction information, etc. The memory may exist independently of the processor, in which case the memory may be coupled to the processor via a communication line. In another possible design, the memory may also be integrated with the processor, and the embodiment of the present application is not limited thereto.
Fig. 10 is a block diagram of a communication device according to an embodiment of the present application. The communication device may be a terminal device. As shown in fig. 10, the terminal device includes a processor 1001, a radio frequency circuit, an antenna, and an input-output device. The processor 1001 may be used to process communication protocols and communication data, control the terminal device, execute software programs, process data of the software programs, and the like. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output means. Optionally, the terminal device may also include a memory 1002, which is primarily used to store software programs and data.
When data needs to be sent, the processor 1001 outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 10. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.
In the embodiment of the present application, the antenna and the rf circuit having the transceiving function may be regarded as the transceiver 1003 of the terminal device, and the processor having the processing function may be regarded as the processing unit of the terminal device. A transceiver may also be referred to as a transceiver unit, transceiver, transceiving means, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Alternatively, a device for implementing a receiving function in the transceiver 1003 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiver 1003 may be regarded as a transmitting unit, that is, the transceiver 1003 includes a receiving unit and a transmitting unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.
The processor 1001, the memory 1002, and the transceiver 1003 communicate with each other via internal connection paths, passing control and/or data signals.
Optionally, in some embodiments, memory 1002 may store instructions for performing methods performed by the terminal device, such as the methods illustrated in fig. 3-8. The processor 1001 may execute the instructions stored in the memory 1002 to perform the steps performed by the terminal device in the method shown in fig. 3-8 in combination with other hardware (e.g., the transceiver 1003), and the specific working process and beneficial effects can be referred to the description in the embodiment shown in fig. 3-8.
The method disclosed in the embodiments of the present application may be applied to the processor 1001, or may be implemented by the processor 1001. The processor 1001 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 1001.
Fig. 11 is a block diagram of a communication device according to an embodiment of the present application. The communication device may be a network device. As shown in fig. 11, the network device includes a processor 1101, a radio frequency circuit, an antenna, and an input-output device. The processor 1101 may be used for processing communication protocols and communication data, controlling network devices, executing software programs, processing data of software programs, and the like. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of network devices may not have input/output devices. Optionally, the network device may also include memory 1102, which is used primarily for storing software programs and data.
When data needs to be sent, the processor 1101 performs baseband processing on the data to be sent, outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the network equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 11. In an actual network device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.
In this embodiment, the antenna and the rf circuit with transceiving function may be regarded as the transceiver 1103 of the network device, and the processor with processing function may be regarded as the processing unit of the network device. A transceiver may also be referred to as a transceiver unit, transceiver, transceiving means, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Alternatively, a device for implementing a receiving function in the transceiver 1103 may be regarded as a receiving unit, and a device for implementing a sending function in the transceiver 1103 may be regarded as a sending unit, that is, the transceiver 1103 includes a receiving unit and a sending unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.
The processor 1101, memory 1102, and transceiver 1103 communicate with each other, passing control and/or data signals, over the internal connection paths.
The method disclosed in the embodiments of the present application may be applied to the processor 1101, or implemented by the processor 1101. The processor 1101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1101.
The processor described in the embodiments of the present application may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a Random Access Memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM, an electrically erasable programmable memory, a register, or other storage medium known in the art. The storage medium is located in a memory, and a processor reads instructions in the memory and combines hardware thereof to complete the steps of the method.
Alternatively, in some embodiments, memory 1102 may store instructions for performing methods performed by network devices such as the methods illustrated in fig. 3-8. The processor 1101 may execute the instructions stored in the memory 1102 to perform the steps performed by the network device in the method shown in fig. 3-8 in combination with other hardware (e.g., the transceiver 1103), and the specific working process and beneficial effects may refer to the description in the embodiment shown in fig. 3-8.
The embodiment of the application also provides a chip, which comprises a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. The chip can execute the methods of the network equipment side and the terminal equipment side in the method embodiment.
The embodiment of the present application further provides a computer-readable storage medium, on which instructions are stored, and when executed, the instructions perform the methods of the network device side and the terminal device side in the above method embodiments.
Embodiments of the present application further provide a computer program product containing instructions, where the instructions, when executed, perform the methods on the network device side and the terminal device side in the foregoing method embodiments.
The embodiment of the present application further provides a communication system, which includes a terminal device and a network device, and is respectively configured to execute the methods of the terminal device side and the network device side in the foregoing method embodiments.
In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In the embodiments provided in the present application, the terms first, second, third, etc. are used without any limitation, and do not limit the scope of protection; meanwhile, the A and/or B, wherein "and/or", includes three cases: A. b and A and B.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (34)

1. A method of communication, comprising:
the terminal equipment receives first Downlink Control Information (DCI) in a first time slot;
the terminal equipment determines a second time slot for transmitting second information according to the first DCI, wherein the interval between the second time slot and the first time slot is greater than or equal to B time slots, and B is a positive integer;
the terminal device performs frequency tuning and transmits the second information in the second time slot,
wherein, the first and the second end of the pipe are connected with each other,
the terminal device transmits first information in a time range between an ending time of a time unit T and a starting time of a time unit N, wherein the time unit N is a starting time unit of the frequency tuning, and the starting time of the time unit T is not earlier than the ending time of the time unit K or the starting time of the time unit T is not earlier than the ending time of the time unit R; and/or the presence of a gas in the gas,
and the terminal equipment transmits third information in a time range between the ending time of a time unit M and the starting time of a time unit Y, wherein the time unit M is the ending time unit of the frequency tuning, the time unit Y is the starting time unit of a third time slot, and the interval between the third time slot and the first time slot is equal to B time slots.
2. The method of claim 1,
not performing the frequency tuning during the transmission of the first information and the third information;
the transmission includes receiving or transmitting.
3. The method according to claim 1 or 2,
the time unit K is an end time unit for receiving the first DCI, and the time unit R is a time unit for analyzing the first DCI.
4. The method according to any one of claims 1 to 3,
the length of the time unit R is a predefined integer, or is configured by signaling, or is determined according to the capability of the terminal device.
5. The method according to any one of claims 1 to 4,
the position of the time unit N is predefined, or configured by signaling, or determined according to the capability of the terminal equipment;
the location of time unit N belongs to a first set of locations, the first set of locations comprising a plurality of candidate locations for the time unit N.
6. The method according to any one of claims 1 to 5,
the location of the time unit M belongs to a second set of locations, the second set of locations comprising a plurality of candidate locations for the time unit M; alternatively, the first and second electrodes may be,
the end time of the time unit M is equal to the start time of the time unit Y.
7. The method according to any one of claims 1 to 6,
b is the number of slots included in the handover delay, or,
the B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
8. The method according to any one of claims 1 to 7, further comprising:
the terminal equipment receives a first signaling, wherein the first signaling indicates the time length occupied by the frequency tuning; alternatively, the first and second electrodes may be,
and the terminal equipment sends first capability information to network equipment, wherein the first capability information is used for the network equipment to determine the time length occupied by the frequency tuning.
9. A method of communication, comprising:
the network equipment sends first Downlink Control Information (DCI) in a first time slot, wherein the first DCI indicates a second time slot for terminal equipment to transmit second information, the interval between the second time slot and the first time slot is greater than or equal to B time slots, and B is a positive integer;
the network device transmits second information in the second time slot,
wherein the content of the first and second substances,
the network device transmits first information in a time range between an end time of a time unit T and a start time of a time unit N, wherein the time unit N is a start time unit for the terminal device to perform frequency tuning, and the start time of the time unit T is not earlier than the end time of a time unit K or the start time of the time unit T is not earlier than the end time of a time unit R; and/or the presence of a gas in the gas,
the network device transmits third information in a time range between an end time of a time unit M and a start time of a time unit Y, wherein the time unit M is the end time unit of the terminal device for executing frequency tuning, the time unit Y is the start time unit of a third time slot, and the interval between the third time slot and the first time slot is equal to B time slots.
10. The method of claim 9,
the transmission includes receiving or sending.
11. The method according to claim 9 or 10,
the time unit K is an ending time unit for sending the first DCI, and the time unit R is a time unit for the terminal device to analyze the first DCI.
12. The method according to any one of claims 9 to 11,
the length of the time unit R is a predefined integer, or is configured by signaling, or is determined according to the capability of the terminal device.
13. The method according to any one of claims 9 to 12,
the position of the time unit N is predefined, or configured by signaling, or determined according to the capability of the terminal equipment;
the location of time unit N belongs to a first set of locations, the first set of locations comprising a plurality of candidate locations for the time unit N.
14. The method according to any one of claims 9 to 13,
the location of the time unit M belongs to a second set of locations, the second set of locations comprising a plurality of candidate locations for the time unit M; alternatively, the first and second electrodes may be,
the end time of the time unit M is equal to the start time of the time unit Y.
15. The method according to any one of claims 9 to 14,
b is the number of slots included in the handover delay, or,
the B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
16. The method according to any one of claims 9 to 15, further comprising:
the network equipment sends a first signaling, wherein the first signaling indicates the time length occupied by the frequency tuning; alternatively, the first and second electrodes may be,
the network equipment receives first capability information, and the first capability information is used for the network equipment to determine the time length occupied by the frequency tuning.
17. A communications apparatus, comprising:
a transceiving unit, configured to receive first downlink control information DCI in a first time slot;
a processing unit, configured to determine, according to the first DCI, a second slot for transmitting second information, where a gap between the second slot and the first slot is greater than or equal to B slots, where B is a positive integer;
the processing unit is further configured to perform frequency tuning;
the transceiver unit is further configured to transmit the second information in the second time slot,
the transceiver unit is further configured to transmit first information within a time range between an end time of a time unit T and a start time of a time unit N, where the time unit N is a start time unit of the frequency tuning, and the start time of the time unit T is not earlier than an end time of a time unit K, or the start time of the time unit T is not earlier than an end time of a time unit R; and/or the presence of a gas in the gas,
the transceiver unit is further configured to transmit third information within a time range between an end time of a time unit M and a start time of a time unit Y, where the time unit M is the end time unit of the frequency tuning, the time unit Y is a start time unit of a third time slot, and a gap between the third time slot and the first time slot is equal to B time slots.
18. The apparatus of claim 17,
not performing the frequency tuning during the transmission of the first information and the third information;
the transmission includes receiving or transmitting.
19. The apparatus of claim 17 or 18,
the time unit K is an end time unit for receiving the first DCI, and the time unit R is a time unit for analyzing the first DCI.
20. The apparatus of any one of claims 17 to 19,
the length of the time unit R is a predefined integer, or is configured by signaling, or is determined according to the capability of the terminal device.
21. The apparatus of any one of claims 17 to 20,
the position of the time unit N is predefined, or configured by signaling, or determined according to the capability of the terminal equipment;
the location of time unit N belongs to a first set of locations, the first set of locations comprising a plurality of candidate locations for the time unit N.
22. The apparatus of any one of claims 17 to 21,
the location of the time unit M belongs to a second set of locations, the second set of locations comprising a plurality of candidate locations for the time unit M; alternatively, the first and second electrodes may be,
the end time of the time unit M is equal to the start time of the time unit Y.
23. The apparatus of any one of claims 17 to 22,
b is the number of slots included in the handover delay, or,
the B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
24. The apparatus according to any of claims 17 to 23, wherein the transceiver unit is further configured to:
receiving first signaling indicating a length of time the frequency tuning occupies; alternatively, the first and second electrodes may be,
and sending first capability information to a network device, wherein the first capability information is used for the network device to determine the time length occupied by the frequency tuning.
25. A communications apparatus, comprising:
a transceiving unit, configured to send first downlink control information DCI in a first time slot, where the first DCI indicates a second time slot in which terminal equipment transmits second information, where a gap between the second time slot and the first time slot is greater than or equal to B time slots, where B is a positive integer;
the transceiver unit is further configured to transmit the second information in the second time slot,
the transceiver unit is further configured to transmit first information in a time range between an end time of a time unit T and a start time of a time unit N, where the time unit N is a start time unit for the terminal device to perform frequency tuning, and the start time of the time unit T is not earlier than the end time of a time unit K, or the start time of the time unit T is not earlier than the end time of a time unit R; and/or the presence of a gas in the gas,
the transceiver unit is further configured to transmit third information within a time range between an end time of a time unit M and a start time of a time unit Y, where the time unit M is an end time unit of the terminal device performing frequency tuning, the time unit Y is a start time unit of a third time slot, and an interval between the third time slot and the first time slot is equal to B time slots.
26. The apparatus of claim 25,
the transmission includes receiving or transmitting.
27. The apparatus of claim 25 or 26,
the time unit K is an end time unit for sending the first DCI, and the time unit R is a time unit for the terminal device to analyze the first DCI.
28. The apparatus of any one of claims 25 to 27,
the length of the time unit R is a predefined integer, or is configured by signaling, or is determined according to the capability of the terminal device.
29. The apparatus of any one of claims 25 to 28,
the position of the time unit N is predefined, or configured by signaling, or determined according to the capability of the terminal equipment;
the location of time unit N belongs to a first set of locations, the first set of locations comprising a plurality of candidate locations for the time unit N.
30. The apparatus of any one of claims 25 to 29,
the location of the time unit M belongs to a second set of locations, the second set of locations comprising a plurality of candidate locations for the time unit M; alternatively, the first and second electrodes may be,
the end time of the time unit M is equal to the start time of the time unit Y.
31. The apparatus of any one of claims 25 to 30,
b is the number of slots included in the handover delay, or,
the B is a slot offset value indicated by a time domain resource allocation field of the first DCI.
32. The apparatus according to any of claims 25 to 31, wherein the transceiver unit is further configured to:
transmitting first signaling indicating a length of time occupied by the frequency tuning; alternatively, the first and second electrodes may be,
receiving first capability information, wherein the first capability information is used for a network device to determine a time length occupied by the frequency tuning.
33. A communications apparatus, comprising: a processor coupled with a memory for storing a computer program, and a memory for executing the computer program stored in the memory to cause the communication apparatus to perform the communication method of any one of claims 1 to 8, or to cause the communication apparatus to perform the communication method of any one of claims 9 to 16.
34. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform a communication method according to any one of claims 1 to 8, or cause the computer to perform a communication method according to any one of claims 9 to 16.
CN202110271912.2A 2021-03-12 2021-03-12 Communication method and device Pending CN115087104A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202110271912.2A CN115087104A (en) 2021-03-12 2021-03-12 Communication method and device
PCT/CN2022/078298 WO2022188649A1 (en) 2021-03-12 2022-02-28 Communication method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110271912.2A CN115087104A (en) 2021-03-12 2021-03-12 Communication method and device

Publications (1)

Publication Number Publication Date
CN115087104A true CN115087104A (en) 2022-09-20

Family

ID=83226355

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110271912.2A Pending CN115087104A (en) 2021-03-12 2021-03-12 Communication method and device

Country Status (2)

Country Link
CN (1) CN115087104A (en)
WO (1) WO2022188649A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2957732T3 (en) * 2018-04-06 2024-01-24 Nokia Technologies Oy Partial Uplink Bandwidth Switching on New License-Free Radio
US11611921B2 (en) * 2019-05-03 2023-03-21 Mediatek Inc. Bandwidth part switching within different switching delays
CN112261730B (en) * 2019-07-22 2022-05-31 华为技术有限公司 Communication method and communication device

Also Published As

Publication number Publication date
WO2022188649A1 (en) 2022-09-15

Similar Documents

Publication Publication Date Title
CN112399460B (en) Method and device for measuring
US10742300B2 (en) Communication method, network device, and terminal device
US11871427B2 (en) Data transmission method, terminal device and network device
US10952207B2 (en) Method for transmitting data, terminal device and network device
KR102415868B1 (en) Signal transmission method, network device and terminal device
CN111630886B (en) Pilot frequency measurement time delay determination method, device and storage medium
US20200112954A1 (en) Data Transmission Method, Terminal Device, and Network Device
EP3949573B1 (en) Method and system for srs transmission
CN111434071A (en) Signal receiving device and method, and communication system
CN111756505B (en) Method and equipment for switching partial bandwidth
CN109756921B (en) Measuring method and device
US20220015147A1 (en) Control information transmission method and apparatus
WO2019192003A1 (en) Resource allocation method and apparatus
CN112703808B (en) Method and apparatus for BWP handover
CN111837430B (en) Wireless communication method, terminal equipment and network equipment
CN115087104A (en) Communication method and device
CN115066922A (en) Information reporting method and device
CN113840380A (en) Beam indication method and communication device
US20230269618A1 (en) Communication Method and Apparatus
WO2022206581A1 (en) Method and apparatus for resource mapping
US20230403687A1 (en) Communication Method and Apparatus
CN116264498A (en) Transmission method, receiving method and device for positioning reference signal of direct link

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination