CN117014896A - Carrier switching method, device and terminal - Google Patents
Carrier switching method, device and terminal Download PDFInfo
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- CN117014896A CN117014896A CN202210444237.3A CN202210444237A CN117014896A CN 117014896 A CN117014896 A CN 117014896A CN 202210444237 A CN202210444237 A CN 202210444237A CN 117014896 A CN117014896 A CN 117014896A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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Abstract
The invention provides a carrier switching method, a carrier switching device and a terminal, and relates to the technical field of communication. The method comprises the following steps: determining configuration information of a first antenna port of an uplink carrier before switching and configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2; determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information; and executing carrier switching according to the data transmission state of the uplink carrier after switching. The invention can solve the problem that the terminal cannot execute carrier switching because the data transmission state of the antenna port configuration information after switching is not unique aiming at carrier switching of more than 2 wave bands at present.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a carrier switching method, a device, and a terminal.
Background
In the operation of carrier aggregation (Carrier Aggregation, CA) of a New air interface (New Radio, NR), uplink carrier switching between up to 4 bands is supported. When uplink carrier switching is performed, there are cases where switching is performed between different data transmission states. Antenna port configuration information that can support multiple carriers to transmit data using different antenna ports in one data transmission state, for example: antenna port configuration information supporting 1 carrier to transmit data using 1 antenna port; antenna port configuration information supporting 1 carrier to transmit data using 2 antenna ports; antenna port configuration information supporting 2 carriers to transmit data using 1 antenna port, respectively; etc.
The uplink carrier switching between 2 bands will be described as an example. The number of antenna ports that can be used can be 1 antenna port or 2 antenna ports, assuming that the carriers for uplink carrier switching scheduled by the base station for the terminal are C1 and C2. The antenna port configuration information that may be present includes: a1: antenna port configuration information supporting C2 to transmit data using 1 antenna port; a2: antenna port configuration information supporting C1 to transmit data using 1 antenna port; a3: antenna port configuration information supporting C1 to transmit data using 1 antenna port and C2 to transmit data using 1 antenna port; b1: antenna port configuration information supporting C2 to transmit data using 2 antenna ports; b2: antenna port configuration information supporting C1 to transmit data using 2 antenna ports. According to the antenna port configuration information, the determinable data transmission state at least comprises: data transmission states 1{ A1, A2 and A3}, data transmission states 2{ B1, A1}, data transmission states 3{ B2, A2}. Different data transmission states correspond to different radio frequency channel distributions.
Based on the data transmission states of the 2 bands, when carrier switching is performed, if the antenna port configuration information before switching is B1 and the antenna port configuration information after switching is A2, the terminal cannot determine whether to apply the radio frequency channel distribution parameter corresponding to the data transmission state 1 or the radio frequency channel distribution parameter corresponding to the data transmission state 3 according to the data transmission state A2 after switching, and further cannot perform carrier switching. And as the number of used bands increases, the corresponding data transmission states become more and more. The above problems are more and more prominent in practical applications.
Disclosure of Invention
The invention provides a carrier switching method, a device and a terminal, which solve the problem that the terminal cannot execute carrier switching due to the fact that the data transmission state of antenna port configuration information is not unique after switching is carried out for carrier switching of more than 2 wave bands at present.
In a first aspect, an embodiment of the present invention provides a carrier switching method, including:
determining configuration information of a first antenna port of an uplink carrier before switching and configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2;
determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and executing carrier switching according to the data transmission state of the uplink carrier after switching.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case where the data transmission state of the uplink carrier before switching contains antenna port configuration information supporting one carrier to transmit data using two antenna ports:
Selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the data transmission state of the uplink data before switching comprises the third antenna port configuration, and the third antenna port configuration information supports one carrier to use at most one antenna port to transmit data; n is a positive integer greater than 1.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the first antenna port configuration information supports that one carrier uses at most one antenna port to transmit data, and the data transmission state of the uplink carrier before switching further includes antenna port configuration information that supports that two carriers use at most one antenna port to transmit data, respectively:
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein N is an integer greater than 1.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the first antenna port configuration information supports that two carriers respectively transmit data using at most one antenna port:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state further containing the first antenna port configuration information from the N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein N is a positive integer greater than 1.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
when the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers respectively use at most one antenna port to transmit data, and none of the N data transmission states including the second antenna port configuration information includes the data transmission state of the first antenna port configuration information:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein M is a positive integer.
Optionally, the preconfigured data transmission state includes antenna port configuration information supporting one carrier to transmit data using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fourth antenna port configuration information is all antenna port configuration information contained in the data transmission state of the uplink data before switching; n is a positive integer greater than 1.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
In the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carrier supporting the data transmission is different from the carrier supporting the data transmission of the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1.
Optionally, the performing carrier switching according to the data transmission state of the switched uplink carrier includes:
determining a second radio frequency channel distribution parameter of the uplink carrier after switching according to the data transmission state of the uplink carrier after switching;
and executing carrier switching based on the first radio frequency channel distribution parameter and the second radio frequency channel distribution parameter of the uplink carrier before switching.
In a second aspect, an embodiment of the present invention provides a carrier switching apparatus, including a memory, a transceiver, and a processor;
Wherein the memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations:
determining configuration information of a first antenna port of an uplink carrier before switching and configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2;
determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and executing carrier switching according to the data transmission state of the uplink carrier after switching.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
in the case where the data transmission state of the uplink carrier before switching contains antenna port configuration information supporting one carrier to transmit data using two antenna ports:
selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
The data transmission state of the uplink data before switching comprises the third antenna port configuration, and the third antenna port configuration information supports one carrier to use at most one antenna port to transmit data; n is a positive integer greater than 1.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
in the case that the first antenna port configuration information supports that one carrier uses at most one antenna port to transmit data, and the data transmission state of the uplink carrier before switching further includes antenna port configuration information that supports that two carriers use at most one antenna port to transmit data, respectively:
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein N is an integer greater than 1.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
in the case that the first antenna port configuration information supports that two carriers respectively transmit data using at most one antenna port:
Selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state further containing the first antenna port configuration information from the N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein N is a positive integer greater than 1.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
when the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers respectively use at most one antenna port to transmit data, and none of the N data transmission states including the second antenna port configuration information includes the data transmission state of the first antenna port configuration information:
Selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the preconfigured data transmission state includes antenna port configuration information supporting one carrier to transmit data using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
Selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fourth antenna port configuration information is all antenna port configuration information contained in the data transmission state of the uplink data before switching; n is a positive integer greater than 1.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carrier supporting the data transmission is different from the carrier supporting the data transmission of the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1.
Optionally, the processor is configured to read the computer program in the memory and perform the following operations:
determining a second radio frequency channel distribution parameter of the uplink carrier after switching according to the data transmission state of the uplink carrier after switching;
and executing carrier switching based on the first radio frequency channel distribution parameter and the second radio frequency channel distribution parameter of the uplink carrier before switching.
In a third aspect, an embodiment of the present invention provides a terminal, including:
the first processing unit is used for determining the configuration information of a first antenna port of an uplink carrier before switching and the configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2;
the second processing unit is used for determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and the switching unit is used for executing carrier switching according to the data transmission state of the uplink carrier after switching.
In a fourth aspect, embodiments of the present invention provide a processor-readable storage medium storing a computer program for causing the processor to perform the steps in the carrier switching method as described above.
The technical scheme of the invention has the beneficial effects that:
in the embodiment of the invention, under the condition that the number of the configured wave bands for switching is greater than 2, determining the data transmission state of the uplink carrier after switching according to the configuration information of the first antenna port of the uplink carrier before switching and/or the configuration information of the second antenna port of the uplink carrier after switching; and executing carrier switching according to the data transmission state of the uplink carrier after switching. In this way, the terminal determines the unique data transmission state of the antenna port configuration information of the uplink carrier after switching (namely, the data transmission state of the uplink carrier after switching) according to the first antenna port configuration information of the uplink carrier before switching and/or the second antenna port configuration information of the uplink carrier after switching, so as to ensure that the carrier switching process of multiple bands can be better carried out, and solve the problem that the terminal cannot execute carrier switching due to the fact that the data transmission state of the antenna port configuration information after switching is not unique in the carrier switching of more than 2 bands at present.
Drawings
FIG. 1 shows a schematic diagram of a terminal architecture model and a handoff procedure;
fig. 2 is a flowchart of a carrier switching method according to an embodiment of the present invention;
FIG. 3 shows a block diagram of a terminal according to an embodiment of the invention;
fig. 4 shows a block diagram of a carrier switching device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present application, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
In addition, the terms "system" and "network" are often used interchangeably herein.
The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.
Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.
In the embodiment of the application, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Carrier selective transmission/concurrency procedures over multiple bands are supported, with the primary purpose of enhancing the radio coverage capability of a cell. Such as:
when the terminal is in the center of the cell, the terminal is relatively close to the base station, and the terminal uses the carrier with relatively high frequency band to communicate (for example, carrier-1 of 3.5GHz 2TX MIMO with bandwidth of 100 MHz), so that a relatively high data transmission rate can be obtained.
When the terminal is at the cell edge, the terminal is far away from the base station, and the terminal uses the carrier with lower frequency band to communicate (for example, carrier-1 with the bandwidth of 2.1GHz and 20 MHz), so that a certain performance coverage quality can be obtained.
When the terminal is in the middle position of the cell, if the terminal is not far away from the base station, the terminal can simultaneously use carriers of two wave bands (such as carrier-1 of 2.1G and carrier-2 of 3.5 GHz) to communicate, so that spectrum resources can be fully utilized, and user experience (such as a 'concurrent uplink' mode) is improved.
The following description is made for a handover procedure between transmission carriers:
considering the cost of the terminal, sharing some devices between different carriers can reduce the manufacturing cost, but considering the switching time and the location where the switching occurs. As shown in fig. 1, a schematic diagram of a terminal structure model and a handover procedure is provided, which supports uplink handover between carriers on 2 different bands.
As shown in fig. 1, in the terminal uplink communication, an inter-carrier handover may occur;
when a signal or a channel is transmitted on the carrier 1, the control parameter of the RF adopts the relevant value of the carrier 1, the output point a of the RF part is switched to the power amplifier input point 1 of the carrier 1, and the power amplifier output 1 is switched to the antenna B.
When a signal or channel is transmitted on carrier 2, the control parameter of RF adopts the value related to carrier 2, the output point a of the RF part is switched to the power amplifier input point 2 of carrier 2, and the power amplifier output 2 is switched to the antenna B.
Hereinafter, description will be made on carrier configuration for uplink carrier switching:
for uplink switching between carriers of 2 bands, the data transmission state and corresponding radio frequency channel distribution parameters (such as Tx channel configuration number) and antenna port configuration information (such as antenna port configuration number) are shown in the following table 1:
TABLE 1
For uplink switching between carriers of 3 bands, the data transmission state and corresponding radio frequency channel distribution parameters (such as Tx channel configuration number) and antenna port configuration information (such as antenna port configuration number) are shown in the following table 2:
TABLE 2
In table 2 above, state 1 comprises: antenna port configuration information supporting 1 antenna port transmission for carrier 2 (carrier-2 or c 2) and/or 1 antenna port transmission for carrier 3 (carrier-3 or c 3); state 2 includes: antenna port configuration information supporting 1 antenna port transmission for carrier 1 (carrier-1 or c 1) and/or 1 antenna port transmission for carrier-3; state 3 includes: antenna port configuration information supporting carrier-1 antenna port transmission and/or carrier-2 1 antenna port transmission; state 4 includes: antenna port configuration information supporting only 2 antenna port transmissions for carrier-3; state 5 includes: antenna port configuration information supporting only 2 antenna port transmissions for carrier-2; state 6 includes: antenna port configuration information supporting only 2 antenna port transmissions for carrier-1.
In table 2, A1 is: antenna port configuration information supporting only carrier-3's 1 antenna port transmission; a2 is: antenna port configuration information supporting only carrier-2's 1 antenna port transmission; a3 is as follows: antenna port configuration information supporting carrier-2 1 antenna port transmissions and carrier-3 1 antenna port transmissions; a4 is as follows: antenna port configuration information supporting only carrier-1 antenna port transmission; a5 is as follows: antenna port configuration information supporting carrier-1 antenna port transmission and carrier-3 1 antenna port transmission; a6 is: antenna port configuration information supporting carrier-1 antenna port transmission and carrier-2 1 antenna port transmission; b1 is: antenna port configuration information supporting only 2 antenna port transmissions for carrier-3; b2 is: antenna port configuration information supporting only 2 antenna port transmissions for carrier-2; b4 is: antenna port configuration information supporting only 2 antenna port transmissions for carrier-1.
For uplink switching between carriers of 4 bands, the data transmission state and corresponding radio frequency channel distribution parameters (such as Tx channel configuration number) and antenna port configuration information (such as antenna port configuration number) are shown in the following table 3:
TABLE 3 Table 3
In table 3 above, state 1 comprises: antenna port configuration information supporting carrier-3 1 antenna port transmissions and/or carrier-4 1 antenna port transmissions; state 2 includes: antenna port configuration information supporting carrier-2 1 antenna port transmissions and/or carrier-4 1 antenna port transmissions; state 3 includes: antenna port configuration information supporting carrier-2 1 antenna port transmissions and/or carrier-3 1 antenna port transmissions; state 4 includes: antenna port configuration information supporting carrier-1 antenna port transmission and/or carrier-2 1 antenna port transmission; state 5 includes: antenna port configuration information supporting 1-antenna port transmission of carrier-1 and/or 1-port transmission of carrier-3; state 6 includes: antenna port configuration information supporting carrier-1 antenna port transmission and/or carrier-4 1 antenna port transmission; state 7 includes: antenna port configuration information supporting only 2 antenna port transmissions for carrier-4; state 8 includes: antenna port configuration information supporting only 2 antenna port transmissions for carrier-3; state 9 includes: antenna port configuration information supporting only 2 antenna port transmissions for carrier-2; state 10 includes: antenna port configuration information supporting only 2 antenna port transmissions for carrier-1.
In table 3, A1 is: antenna port configuration information supporting only carrier-4's 1 antenna port transmission; a2 is: antenna port configuration information supporting only carrier-3's 1 antenna port transmission; a3 is as follows: antenna port configuration information supporting carrier-3 1 antenna port transmissions and carrier-4 1 antenna port transmissions; a4 is as follows: antenna port configuration information supporting only carrier-2's 1 antenna port transmission; a5 is as follows: antenna port configuration information supporting carrier-2 1 antenna port transmissions and carrier-4 1 antenna port transmissions; a6 is: antenna port configuration information supporting carrier-2 1 antenna port transmissions and carrier-3 1 antenna port transmissions; a8 is: antenna port configuration information supporting only carrier-1 antenna port transmission; a9 is: antenna port configuration information supporting carrier-1 antenna port transmission and carrier-4 1 antenna port transmission; a10 is: antenna port configuration information supporting carrier-1 antenna port transmission and carrier-3 1 antenna port transmission; a12 is: antenna port configuration information supporting carrier-1 antenna port transmission and carrier-2 1 antenna port transmission; b1 is: antenna port configuration information supporting only 2 antenna port transmissions for carrier-4; b2 is: antenna port configuration information supporting only 2 antenna port transmissions for carrier-3; b4 is: antenna port configuration information supporting only 2 antenna port transmissions for carrier-2; b8 is: antenna port configuration information supporting only 2 antenna port transmissions for carrier-1.
In the above table, c1 represents carrier 1 (carrier-1) on band 1 (band-1); c2 represents carrier-2 on band-2, and so on;
0T represents that 0 radio frequency channels (or uplink transmission units) are occupied; 1T represents occupying 1 radio frequency channel (or uplink transmission unit), and so on;
0P represents occupying 0 antenna ports; 1P represents occupying 1 antenna port, and so on;
in the above table, the one-to-one correspondence between the 4 carriers, c1/c2/c3/c4 on the 4 bases and the radio frequency channel distribution parameters contained in each data transmission state and the parameters in the antenna port configuration information are defined.
Taking the antenna port configuration information A1 included in the state 1 in the above table 3 as an example, a1= {0p+0p+0p+1p } represents: no Tx channel (i.e., 0T) is allocated on carrier-1/2 while no signal/data is sent (i.e., 0P); 1 Tx lane (i.e., 1T) is allocated on Carrier-3, but Carrier-3 does not send any signal/data (i.e., 0P); 1 Tx channel (i.e., 1T) is allocated on Carrier-4, and Carrier-4 uses one port to transmit signals/data (i.e., 1P);
taking the antenna port configuration information B1 included in the state 7 in the above table 3 as an example, b1= {0p+0p+0p+2p } represents: no Tx channel (i.e., 0T) is allocated on carrier-1/2/3 while no signal/data is sent (i.e., 0P); 2 Tx lanes (i.e., 2T) are allocated on Carrier-4, and Carrier-4 uses 2 ports to transmit signals/data (i.e., 2P).
Based on the data transmission states in the above tables 1, 2 and 3 and the corresponding radio frequency channel distribution parameters (such as Tx channel configuration number) and antenna port configuration information (such as antenna port configuration number), there is uncertainty of switching the data transmission states, and if the table 1 is continued, there are two antenna port configuration information A2 in the state 1 and the state 3 respectively. If the antenna port configuration information before switching is the antenna port configuration information B1 of the state 2 and the next antenna port configuration information (i.e., the antenna port configuration information after switching) is the antenna port configuration information A2, the terminal does not know whether to switch to the antenna port configuration information A2 of the state 1 or to switch to the antenna port configuration information A2 of the state 3.
Further, for the antenna port configuration information of the uplink carrier that is initially transmitted at the terminal side, when the antenna port configuration information that is initially transmitted may exist in multiple data transmission states, one data transmission state may be configured or defaulted according to a higher layer, for example: when the antenna port configuration information of the uplink carrier that is initially transmitted is transmitted by using 1 antenna port only on 1 carrier, the default state is: a data transmission state including antenna port configuration information supporting the use of 2 antenna ports on 1 carrier. For example: if the antenna port configuration information of the uplink carrier to be initially transmitted is transmitted on c1 and configured as 1P, the data transmission state of the uplink carrier to be initially transmitted includes a transmission state supporting 2P transmission data on c1, as in state 10 in table 3.
The current treatment scheme for the 2 wave bands is: if the terminal is triggered to transmit information of the 1 antenna port, if the switched data transmission state is not the same, determining the switched data transmission state by the high-layer signaling indication, wherein the high-layer signaling indicates the option 1 or the option 2.
Option 1: switching to a data transmission state containing antenna port configuration information supporting 2TX transmission;
option 2: switching to a data transmission state containing antenna port configuration information supporting cart-1 tx and cart-2 1 tx;
note that, since the in-state switching does not require a switching time, the relevant antenna port configuration information is preferentially switched in the state. For example, if the terminal is switched to the antenna port configuration information B2 included in the state 3 and the next antenna port configuration information is A2, the terminal defaults to switch to the antenna port configuration information A2 in the state 3, and other states/antenna port configuration information are similar.
For 2-band carrier switching, the technical effects of the above-described manner of higher layer signaling indication are shown in tables 4-1 and 4-2.
Table 4-1: technical effect configured as option 1
Table 4-2: technical effect configured as option 2
Here, a and B are used to represent antenna port configuration information. As A2 represents {1p+0p }. At present, the high-level indication option 1 or option 2 is aimed at the condition of 2 bands, and the number of candidate data transmission states is at most 2, which are respectively: a data transmission state of 2TX (i.e., a data transmission state including radio frequency channel distribution parameters supporting one carrier to use two transmission channels, or a data transmission state including antenna port configuration information supporting one carrier to use two antenna ports to transmit data) and a data transmission state of 1TX (i.e., a data transmission state including radio frequency channel distribution parameters supporting one carrier to use at most one transmission channel, or a data transmission state including antenna port configuration information supporting one carrier to use at most one antenna port to transmit data).
However, in the 3-band or 4-band, one antenna port configuration information thereof exists in a plurality of data transmission states (the case of 2 data transmission states exceeding the 2-band). Such as: for carrier switching of 4 bands, the antenna port configuration information A1 exists in 4 data transmission states, which are respectively: states 1/2/6/7 are as shown in Table 3 above. Wherein 3 states are 1TX states and 1 state is 2TX state. Another example is: for carrier switching of 4 bands, the antenna port configuration information A2 exists in 4 states, respectively: states 1/3/5/9 are shown in Table 3. Wherein 3 states are 1TX states and 1 state is 2TX state.
If the 2-band scheme is adopted: when the higher layer signaling indicates "option 1", the terminal may operate (since only 1 state is the 2TX state); when the higher layer signaling indicates "option 2", the terminal cannot operate (because there are 3 states that are 1TX states).
In summary, the problems to be solved by the embodiments of the present invention are: at present, for carrier switching of more than 2 wave bands, there is a problem that a terminal cannot execute carrier switching due to the fact that the data transmission state of antenna port configuration information after switching is not unique.
The embodiment of the application provides a carrier switching method, a carrier switching device and a terminal, which are used for solving the problems. The method and the device (or terminal) are based on the same application, and because the principles of solving the problems by the method and the device (or terminal) are similar, the implementation of the device (or terminal) and the method can be referred to each other, and the repetition is not repeated.
As shown in fig. 2, an embodiment of the present application provides a carrier switching method, optionally applied to a terminal, including the following steps:
step 21: and determining the configuration information of the first antenna port of the uplink carrier before switching and the configuration information of the second antenna port of the uplink carrier after switching, wherein the number of the uplink carriers is more than 2.
Optionally, the network side device may send the first antenna port configuration information of the uplink carrier before switching and the second antenna port configuration information of the uplink carrier after switching to the terminal by using the scheduling signaling. In this way, the terminal can determine the first antenna port configuration information of the uplink carrier before switching and the second antenna port configuration information of the uplink carrier after switching.
Optionally, the number of wave bands of the uplink carrier before switching is the same as the number of wave bands of the uplink carrier after switching, if the number of wave bands of the uplink carrier before switching is 3, the number of wave bands of the uplink carrier after switching is 3; the carrier wave participating in data transmission before switching and the carrier wave participating in parameter data transmission after switching can be the same or different.
Step 22: and determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information.
Optionally, determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
and when the data transmission states including the second antenna port configuration information are at least two, determining the data transmission state of the uplink carrier after switching according to at least one of the first antenna port configuration information, the data transmission state of the uplink carrier before switching and the pre-configured data transmission state.
Wherein, the determining the data transmission state of the uplink carrier after the switching according to at least one of the configuration information of the first antenna port, the data transmission state of the uplink carrier before the switching, and the pre-configured data transmission state includes but is not limited to at least one of the following:
determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and the second antenna port configuration information;
determining the data transmission state of the uplink carrier after switching according to the pre-configured data transmission state and the second antenna port configuration information;
Determining the data transmission state of the uplink carrier after switching according to the data transmission state of the uplink carrier before switching and the configuration information of the second antenna port;
and determining the data transmission state of the uplink carrier after switching according to the antenna port configuration information and the second antenna port configuration information contained in the data transmission state of the uplink carrier before switching.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
when the data transmission states including the second antenna port configuration information are at least two, selecting one data transmission state from the at least two data transmission states including the second antenna port configuration information according to at least one of the first antenna port configuration information, the data transmission state of the uplink carrier before switching and the preconfigured data transmission state, and determining the data transmission state of the uplink carrier after switching.
For example: taking the 4-band example, with continued reference to table 3 above, the first antenna port configuration information may be one of a1/2/3/4/5/6/8/9/10/12, B1/2/4/8; the data transmission state before switching (i.e., the data transmission state in which the first antenna port configuration information is located) may be one of the states 1/2/3/4/5/6/7/8/9/10 (e.g., the first antenna port configuration information is A1, the data transmission state before switching may be one of the states 1/2/6/7; e.g., the first antenna port configuration information is B1, the data transmission state before switching may be state 7); the second antenna port configuration information may be one of A1/2/3/4/5/6/8/9/10/12, B1/2/4/8 different from the first antenna port configuration information (e.g., the first antenna port configuration information is A1, and the second antenna port configuration information is A4).
Optionally, the preconfigured data sending state may be indicated by the network side device through a higher layer signaling, or may also be based on a protocol convention, etc., which is not limited by the embodiment of the present invention.
Step 23: and executing carrier switching according to the data transmission state of the uplink carrier after switching.
Optionally, the data transmission state of the uplink carrier after switching is the state where the second antenna port configuration information is located, or it may be understood that the data transmission state of the uplink carrier after switching includes the second antenna port configuration information. The second antenna port configuration information may refer to antenna port configuration information to be transmitted next after the transmission with the first antenna port configuration information is completed.
In the above scheme, when the number of configured bands for switching is greater than 2, determining the data transmission state of the uplink carrier after switching according to the configuration information of the first antenna port of the uplink carrier before switching and/or the configuration information of the second antenna port of the uplink carrier after switching; and executing carrier switching according to the data transmission state of the uplink carrier after switching. In this way, the terminal determines the unique data transmission state of the antenna port configuration information of the uplink carrier after switching (namely, the data transmission state of the uplink carrier after switching) according to the first antenna port configuration information of the uplink carrier before switching and/or the second antenna port configuration information of the uplink carrier after switching, so as to ensure that the carrier switching process of multiple bands can be better carried out, and solve the problem that the terminal cannot execute carrier switching due to the fact that the data transmission state of the antenna port configuration information after switching is not unique in the carrier switching of more than 2 bands at present.
Optionally, the determining, according to the first antenna port configuration information and/or the second antenna port configuration information, a data transmission state of the uplink data after switching includes at least one of the following:
selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink data after switching; the third antenna port configuration information is one antenna port configuration information contained in a data transmission state of uplink data before switching; n is a positive integer greater than 1;
selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink data after switching; the fourth antenna port configuration information is all antenna port configuration information contained in a data transmission state of uplink data before switching; n is a positive integer greater than 1;
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink data after switching; the fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carriers supporting to transmit data are different from the carriers supporting to transmit data in the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1;
Selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink data after switching; wherein M is a positive integer.
Optionally, the selecting a data transmission state including third antenna port configuration information from N data transmission states including the second antenna port configuration information, and determining the data transmission state as the uplink data after switching includes:
selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink data after switching; wherein, the third antenna port configuration information supports one carrier to use at most one antenna port to send data;
or,
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the switched uplink data; the third antenna port configuration information is the first antenna port configuration information.
Optionally, the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching; wherein M is a positive integer.
The preconfigured data sending state comprises antenna port configuration information supporting one carrier to send data by using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
For example: in the case that the preconfigured data transmission state includes antenna port configuration information supporting one carrier to transmit data using two antenna ports, the terminal may determine a data transmission state supporting the second antenna port configuration information in the preconfigured data transmission state as a data transmission state of the uplink carrier after switching.
For example, as for carrier switching with a band number greater than 2, the terminal only wants to be configured as "option 1", i.e. to switch to a state supporting 2TX transmission. Specifically, the method may be configured in a pre-configuration manner, where the candidate data transmission states including the second antenna port configuration information are at least two, and the terminal may determine the data transmission state of the uplink carrier after switching according to the pre-configured data transmission state including the antenna port configuration information supporting one carrier to transmit data using two antenna ports, that is, the terminal may determine the data transmission state of the uplink carrier after switching, which includes the second antenna port configuration information in the pre-configured data transmission state and includes the antenna port configuration information supporting one carrier to transmit data using two antenna ports.
Optionally, the network side device may instruct the terminal through high-layer signaling: determining a data transmission state of the uplink carrier after switching based on a data transmission state including antenna port configuration information supporting one carrier to transmit data using two antenna ports in the case where the candidate data transmission states are at least two; alternatively, it is agreed by the protocol that: in the case where the candidate data transmission states are at least two, the terminal may determine the data transmission state of the uplink carrier after switching based on the data transmission state including the antenna port configuration information supporting one carrier to transmit data using two antenna ports.
Example 1:
for carrier switching with a number of bands greater than 2 (e.g., 3 or 4 bands), the terminal only wants to be configured as option 1 as follows, or defaults to option 1. Wherein,
option 1: switching to a state supporting 2TX transmission (i.e., a data transmission state including radio frequency channel distribution parameters supporting one carrier to use two transmission channels, or a data transmission state including antenna port configuration information supporting one carrier to transmit data using two antenna ports);
option 2: switching to a state supporting carreri-1 tx and carrier-2 tx (i.e., a data transmission state including radio frequency channel distribution parameters supporting two carriers using at most one transmission channel, respectively, or a data transmission state including antenna port configuration information supporting two carriers using at most one antenna port, respectively, to transmit data);
I.e. for carrier switching with a number of bands greater than 2 (e.g. 3 or 4 bands), the terminal does not want to be configured as option 2 above.
Optionally, in the case that the network side configures both the uplink carrier switching of 2 bands and the carrier switching of the number of bands greater than 2, if the uplink carrier switching of 2 bands configured by the network side is option 2 (option 2: switch to a state supporting cart-1 tx and carrier-2 1 tx), the terminal considers that: this configuration is only effective for carrier switching of the 2 band; and for carrier switching with a band number greater than 2, the terminal considers the default configuration to be option 1 (option 1: switch to a state supporting 2TX transmission).
Taking uplink carrier switching of 3 bands as an example, the effect of this implementation is described as follows:
based on the above table 2, when the second antenna port configuration information is to support one carrier to transmit using one antenna port, the terminal is configured to be in option 1, i.e., switched to a state supporting 2TX and including the second antenna port configuration information, as shown in table 5.
TABLE 5
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Also for example: and under the condition that the candidate data transmission states are at least two, the terminal can determine the data transmission state of the uplink carrier after switching according to the preconfigured data transmission states which comprise the antenna port configuration information supporting one carrier to use at most one antenna port to transmit data and the second antenna port configuration information.
Optionally, in the case that the candidate data transmission states are at least two, the network side may instruct the terminal to determine one data transmission state as the uplink carrier after switching from the plurality of candidate data transmission states through a higher layer configuration message. Wherein, the configuration message may include: the data transmission state of the uplink carrier before switching (namely the data transmission state of the uplink carrier before switching) of the first antenna port configuration information/the data transmission state of the first antenna port configuration information, and the data transmission state of the uplink carrier after switching; that is, the data transmission state of the uplink carrier after switching and the antenna port configuration information are correlated with the antenna port configuration information before switching and the data transmission state of the uplink carrier before switching.
Also for example: the pre-configured data transmission state includes antenna port configuration information supporting one carrier to use at most one antenna port to transmit data, and the terminal may determine the pre-configured data transmission state as a data transmission state of the uplink carrier after switching when the pre-configured data transmission state includes second antenna port configuration information.
Optionally, the network side device may instruct the terminal through high-layer signaling: in the case that the candidate data transmission states are at least two, based on the pre-configured antenna port configuration information which comprises at most one antenna port for supporting one carrier to use to transmit data, and the data transmission state which comprises the second antenna port configuration information is used as the data transmission state of the uplink carrier after switching; alternatively, it is agreed by the protocol that: based on the preconfigured antenna port configuration information which comprises the antenna port for supporting one carrier to use at most one antenna port for transmitting data, and the data transmission state which comprises the second antenna port configuration information is used as the data transmission state of the uplink carrier after switching.
Example 2:
for the problem of non-uniqueness of the data transmission state of the uplink carrier after switching (for example, one antenna port is used for transmitting data on one carrier, and the data is not switched into the data transmission state supporting 2Tx or 2P transmission data), the terminal can be preconfigured to switch into only the specified data transmission state (for example, the terminal can be configured by high-layer signaling or is agreed by a protocol):
for example: for carrier switching of 4 bands, when the second antenna port configuration information after terminal switching supports information transmission by using one antenna port on one carrier, if the data transmission state of the uplink carrier before switching does not include the second antenna port configuration information, the terminal may be preconfigured to switch to state 1 or state 4:
if the second antenna port configuration information is A1 or A2, switching to state 1;
if the second antenna port configuration information is A4 or A8, then switch to state 4.
Also for example: for carrier switching of 4 bands, when the configuration information of the second antenna port after the terminal is switched supports that one antenna port is used to transmit data on one carrier, if the data transmission state of the uplink carrier before the switching does not include the configuration information of the second antenna port, the terminal can be preconfigured to be switched to a state 2 or a state 5:
If the second antenna port configuration information is A1 or A4, switching to state 2;
if the second antenna port configuration information is A2 or A8, then switch to state 5.
Also for example: for carrier switching of 4 bands, when the configuration information of the second antenna port after the terminal is switched supports that one antenna port is used to transmit data on one carrier, if the data transmission state of the uplink carrier before the switching does not include the configuration information of the second antenna port, the terminal can be preconfigured to be switched to a state 3 or a state 6:
if the second antenna port configuration information is A2 or A4, switching to state 3;
if the second antenna port configuration information is A1 or A8, then switch to state 6.
For example: for carrier switching of 3 bands, when the configuration information of the second antenna port after the terminal is switched supports that one antenna port is used to transmit data on one carrier, if the data transmission state of the uplink carrier before the switching does not include the configuration information of the second antenna port, the terminal can be preconfigured to be switched to the state 1 or the state 2 or the state 3:
if the second antenna port configuration information is A1, switching to state 1;
if the second antenna port configuration information is A2, switching to state 2;
If the second antenna port configuration information is A4, then switch to state 3.
Also for example: for carrier switching of 3 bands, when the configuration information of the second antenna port after the terminal is switched supports that one antenna port is used to transmit data on one carrier, if the data transmission state of the uplink carrier before the switching does not include the configuration information of the second antenna port, the terminal can be preconfigured to be switched to the state 1 or the state 2:
if the second antenna port configuration information is A1 or A2, switching to state 1;
if the second antenna port configuration information is A4, then switch to state 2.
For example: for carrier switching of 3 bands, when the configuration information of the second antenna port after the terminal is switched supports that one antenna port is used to transmit data on one carrier, if the data transmission state of the uplink carrier before the switching does not include the configuration information of the second antenna port, the terminal can be preconfigured to be switched to the state 1 or the state 3:
if the second antenna port configuration information is A1 or A2, switching to state 1;
if the second antenna port configuration information is A4, then switch to state 3.
Also for example: for carrier switching of 3 bands, when the configuration information of the second antenna port after the terminal is switched supports that one antenna port is used to transmit data on one carrier, if the data transmission state of the uplink carrier before the switching does not include the configuration information of the second antenna port, the terminal can be preconfigured to be switched to the state 2 or the state 3:
If the second antenna port configuration information is A1, switching to state 1;
if the second antenna port configuration information is A4 or A2, then switch to state 3.
Optionally, the determining, by the terminal, the data transmission state of the uplink carrier after the switching according to the target object includes:
under the condition that the state of the current antenna port configuration information is a first type of state, the terminal determines the data transmission state of the uplink carrier after switching according to the state of the current antenna port configuration information;
wherein the first type of state supports one carrier to be transmitted using two antenna ports.
Alternatively, the first type of state may be understood as: the state of the first type of antenna port configuration information supporting one carrier to be transmitted using two antenna ports.
For example: taking carrier switching of 3 wave bands as an example, referring to table 2, the state of the first type is state 4/5/6, and the antenna port configuration information of the first type is antenna port configuration information B1/2/4; taking carrier switching of 4 bands as an example, referring to table 3, the state of the first type is state 7/8/9/10, and the antenna port configuration information of the first type is antenna port configuration information B1/2/4/8.
Optionally, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or the step of selecting the data transmission state including the third antenna port configuration information from the N data transmission states including the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching includes:
in the case where the data transmission state of the uplink carrier before switching contains antenna port configuration information supporting one carrier to transmit data using two antenna ports:
selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the data transmission state of the uplink data before switching comprises the third antenna port configuration, and the third antenna port configuration information supports one carrier to use at most one antenna port to transmit data; n is a positive integer greater than 1.
For example: the data transmission state of the first antenna port configuration information before switching (i.e. the data transmission state of the uplink carrier before switching) includes third antenna port configuration information supporting one carrier to transmit data by using two antenna ports, and the second antenna port configuration information supports one carrier to transmit data by using at most one antenna port, and the terminal determines the data transmission state including the third antenna port configuration information and the second antenna port configuration information as the data transmission state of the uplink carrier after switching.
Specifically, the data transmission state where the first antenna port configuration information is located is a state x (the state x includes antenna port configuration information supporting one carrier to use two antenna ports to transmit data, such as antenna port configuration information B1/B2/B4/B8 in table 3), and the second antenna port configuration information is a-y (a-y supports one carrier to use at most one antenna port to transmit data, such as A1/A2/A4/A8 in table 3);
the data transmission state after the terminal carrier switching meets a first condition, wherein the first condition comprises: :
condition 1: antenna port configuration information included in the support state x, which supports one carrier to transmit data using one antenna port;
condition 2: the second antenna port configuration information a-y is supported.
Example 3:
the data transmission state where the first antenna port configuration information is located includes third antenna port configuration information supporting one carrier to transmit data using two antenna ports, and the second antenna port configuration information supports one carrier to transmit data using at most one antenna port, or supports two carriers to transmit data using at most one antenna port respectively.
For uplink carrier switching in 3 bands, based on the above table 2, when there are at least two candidate data transmission states, the data transmission state (including the third antenna port configuration information and the second antenna port configuration information) of the uplink carrier after switching is determined based on the above first condition, and the technical effects are shown in table 6.
TABLE 6
For uplink carrier switching in the 4-band, based on the above table 3, when there are at least two candidate data transmission states, the data transmission state (including the third antenna port configuration information and the second antenna port configuration information) of the uplink carrier after switching is determined based on the above first condition, and the technical effects are shown in table 7.
TABLE 7
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Alternatively, for uplink carrier switching in the 2-band, based on the above table 1, in the case that there are at least two candidate data transmission states, the data transmission state (including the third antenna port configuration information and the second port configuration information) of the uplink carrier after switching is determined based on the above first condition, and the technical effects are as shown in table 8.
TABLE 8
Optionally, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or the step of selecting the data transmission state not including the fourth antenna port configuration information from the N data transmission states including the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
Selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fourth antenna port configuration information is all antenna port configuration information contained in the data transmission state of the uplink data before switching; n is a positive integer greater than 1.
For example: the data transmission state where the first antenna port configuration information is located does not include antenna port configuration information supporting one carrier to transmit data using two antenna ports, but only includes antenna port configuration information supporting one carrier to transmit data using at most one antenna port, and/or antenna port configuration information supporting two carriers to transmit data using at most one antenna port respectively (i.e., fourth antenna port configuration information); and if the second antenna port configuration information supports that one carrier uses at most one antenna port to transmit or supports that two carriers respectively use at most one antenna port to transmit data, the terminal does not contain fourth antenna port configuration information and the data transmission state containing the second antenna port configuration information, and the data transmission state is determined to be the data transmission state of the uplink carrier after switching.
Specifically, the first antenna port configuration information is antenna port configuration information a-x in state x (where state x only includes antenna port configuration information supporting one carrier to transmit data using at most one antenna port, and/or antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively, as shown in table 3, the antenna port configuration information a-x may be antenna port configuration information a1/2/3/4/5/6/8/9/10/12, and the second antenna port configuration information is a-y (supporting one carrier to transmit data using at most one antenna port, or supporting two carriers to transmit data using at most one antenna port, respectively, as shown in table 3, antenna port configuration information a 1/2/3/4/5/6/8/9/10/12);
the state y after the terminal is switched satisfies a second condition, which includes:
condition 1: not supporting all antenna port configuration information contained in state x;
condition 2: the second antenna port configuration information a-y is supported.
Example 4:
the data transmission state of the first antenna port configuration information does not contain antenna port configuration information supporting one carrier to transmit data by using two antenna ports, but only contains antenna port configuration information supporting one carrier to transmit data by using at most one antenna port, and/or antenna port configuration information supporting two carriers to transmit data by using at most one antenna port respectively; the second antenna port configuration information supports one carrier to transmit data using at most one antenna port, or supports two carriers to transmit data using at most one antenna port, respectively.
For uplink carrier switching in the 4-band, based on the above table 3, in the case where there are at least two candidate data transmission states, the data transmission state (including no fourth antenna port configuration information and including second antenna port configuration information) of the uplink carrier after switching is determined based on the above second condition, and the technical effects are shown in table 9.
TABLE 9
Optionally, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or the step of selecting the data transmission state including the fifth antenna port configuration information from the N data transmission states including the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
The fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carrier supporting the data transmission is different from the carrier supporting the data transmission of the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1.
For example: the data transmission state of the first antenna port configuration information does not contain antenna port configuration information supporting one carrier to transmit data by using two antenna ports, but only contains antenna port configuration information supporting one carrier to transmit data by using at most one antenna port, and/or antenna port configuration information supporting two carriers to transmit data by using at most one antenna port respectively; the second antenna port configuration information supports one carrier to use at most one antenna port to send data, or supports two carriers to use at most one antenna port to send data respectively, and the terminal determines the state containing the fifth antenna port configuration information and the second antenna port configuration information as the data sending state of the uplink carrier after switching. As shown in table 3, when the data transmission state in which the first antenna port configuration information is located is state 1, the fifth antenna port configuration information is a12.
Specifically, the current antenna port configuration information is antenna port configuration information a-x in state x (where state x only includes antenna port configuration information supporting one carrier to transmit data using at most one antenna port, and/or antenna port configuration information supporting two carriers to transmit data using at most one antenna port, as shown in table 3, the antenna port configuration information a-x may be antenna port configuration information a 1/2/3/4/5/6/8/9/10/12), and the second antenna port configuration information is a-y (a-y supports one carrier to transmit data using at most one antenna port, or two carriers to transmit data using at most one antenna port, as shown in table 3, antenna port configuration information a 1/2/3/4/5/6/8/9/10/12);
the state y after terminal switching satisfies the point condition, and the third condition includes:
condition 1: the first carrier and the second carrier corresponding to the state x and transmitting data by using the antenna port are different from each other, and the third carrier and the fourth carrier corresponding to the state y and transmitting data by using the antenna port are different (or understood as a carrier set corresponding to the state x and transmitting data by using the antenna port, a carrier set corresponding to the state y and transmitting data by using the antenna port occupy carriers on all wave bands after the two carriers are combined (or the intersection of the two carriers is empty), as shown in the states 1 and 4 in the table 3);
Condition 2: the second antenna port configuration information a-y is supported.
Example 5:
the data transmission state of the first antenna port configuration information does not contain antenna port configuration information supporting one carrier to transmit data by using two antenna ports, but only contains antenna port configuration information supporting one carrier to transmit data by using at most one antenna port, and/or antenna port configuration information supporting two carriers to transmit data by using at most one antenna port respectively; the second antenna port configuration information supports one carrier to transmit data using at most one antenna port, or supports two carriers to transmit data using at most one antenna port, respectively.
For uplink carrier switching in the 4-band, based on the above table 3, when there are at least two candidate data transmission states, the data transmission states of the uplink carrier after switching (the first carrier and the second carrier that use the antenna port to transmit data corresponding to the data transmission state in which the first antenna port configuration information is located, the third carrier and the fourth carrier that use the antenna port to transmit data corresponding to the data transmission state of the uplink carrier after switching are different, and the data transmission state of the uplink carrier after switching includes the second antenna port configuration information) are determined based on the above third condition, and the technical effects are shown in table 10.
Table 10
Optionally, in the case that the number of bands is 3, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or selecting the data transmission state including the fifth antenna port configuration information from the N data transmission states including the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching, includes:
the terminal determines a first data transmission state corresponding to the first antenna port configuration information; wherein, the first data transmission state is a data transmission state supported when the number of the wave bands is 4;
and the terminal determines the data transmission state of the uplink carrier after switching according to the first data transmission state.
For example: for carrier switching in the 3-band, based on the second condition or the third condition, the terminal may not determine the data transmission state of the uplink carrier after switching, for example, the first antenna port configuration information is the antenna port configuration information A2 in the state 1, the second antenna port configuration information is the antenna port configuration information A4, and the terminal may not determine the data transmission state of the uplink carrier after switching that satisfies the second condition, or may not determine the data transmission state of the uplink carrier after switching that satisfies the third condition. Therefore, the 3-band can be virtualized into 4-band, and the data transmission state of the virtual 4-band, the corresponding radio frequency channel distribution parameters (such as Tx channel configuration number) and the antenna port configuration information (such as antenna port configuration number) are shown in table 11.
TABLE 11
In table 11, the antenna port configuration information AA-x indicates antenna port configuration information that the base station will not schedule in the 3-band handover scenario, that is, only the antenna port configuration information a2/4/6/8/12 will appear and no antenna port configuration information AA1/3/5/9 will appear in the data transmission state where at most one antenna port is used for transmitting data for two carriers, respectively.
Example 6:
the data transmission state of the first antenna port configuration information does not contain antenna port configuration information supporting one carrier to transmit data by using two antenna ports, but only contains antenna port configuration information supporting one carrier to transmit data by using at most one antenna port, and/or antenna port configuration information supporting two carriers to transmit data by using at most one antenna port respectively; the second antenna port configuration information supports one carrier to transmit data using at most one antenna port, or supports two carriers to transmit data using at most one antenna port, respectively.
For carrier switching in 3 bands, based on the above table 11, in the case where there are at least two candidate data transmission states, the data transmission state of the uplink carrier after switching (including no fourth antenna port configuration information and including second antenna port configuration information) is determined based on the above second condition, and the technical effects are as shown in table 12.
Table 12
Optionally, the network side may determine the data transmission state of the uplink carrier after the handover through the higher layer signaling indicating terminal based on the second condition or the third condition, that is, the network side may determine the data transmission state of the uplink carrier after the handover through the higher layer signaling indicating terminal based on one of the foregoing embodiments.
Optionally, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or the step of selecting the data transmission state including the first antenna port configuration information from the N data transmission states including the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching includes:
in the case that the first antenna port configuration information supports that one carrier uses at most one antenna port to transmit data, and the data transmission state of the uplink carrier before switching further includes antenna port configuration information that supports that two carriers use at most one antenna port to transmit data, respectively:
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein N is an integer greater than 1.
Optionally, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or the step of selecting the data transmission state including the second antenna port configuration information from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching includes:
in the case that the first antenna port configuration information supports that two carriers respectively transmit data using at most one antenna port:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the preconfigured data transmission state includes antenna port configuration information supporting one carrier to transmit data using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
For example: the first antenna port configuration information is a-x in a state x (where the state x does not include antenna port configuration information that one carrier uses two antenna ports to transmit data), and the second antenna port configuration information is a-y (which supports one carrier to transmit data using at most one antenna port, or two carriers to transmit data using at most one antenna port, respectively), then the terminal may determine the data transmission state of the uplink carrier after switching by adopting different strategies based on the type of the first antenna port configuration information (such as supporting only one carrier to transmit data using at most one antenna port, or supporting two carriers to transmit data using at most one antenna port, etc.).
Specifically, if the first antenna port configuration information a-x only supports that one carrier uses at most one antenna port to transmit, the state y after terminal switching satisfies a fourth condition, where the fourth condition includes:
condition 1: supporting first antenna port configuration information A-x;
condition 2: the second antenna port configuration information a-y is supported.
Otherwise (i.e. the first antenna port configuration information a-x supports that at most one antenna port is used by two carriers to transmit data, respectively), the state y after terminal switching satisfies a fifth condition, where the fifth condition includes:
condition 1: antenna port configuration information for supporting one carrier to transmit data using two antenna ports is included;
condition 2: the second antenna port configuration information a-y is supported.
Or, in the case that the antenna port configuration information a-x supports that two carriers are transmitted by using at most one antenna port, the state y after the terminal is switched is: a preconfigured data transmission state including second antenna port configuration information.
Example 7:
the first antenna port configuration information is a-x in a state x (where the state x does not include antenna port configuration information supporting one carrier to transmit data using two antenna ports), and the second antenna port configuration information is a-y (supporting one carrier to transmit data using at most one antenna port, or supporting two carriers to transmit data using at most one antenna port, respectively).
For uplink carrier switching of 3 bands, based on the above table 2, in the case that there are at least two candidate data transmission states, based on the type of the first antenna port configuration information, different strategies are adopted to determine the data transmission state of the uplink carrier after switching.
If the first antenna port configuration information supports one carrier to use at most one antenna port to transmit data, determining a data transmission state of the uplink carrier after switching according to the first antenna port configuration information, if the terminal switches to a data transmission state containing both the first antenna port configuration information and the second antenna port configuration information;
if the first antenna port configuration information supports that two carriers use at most one antenna port to transmit data respectively (i.e., the first antenna port configuration information supports that one carrier uses at most one antenna port and supports that another carrier uses at most one antenna port to transmit data), the data transmission state of the uplink carrier after switching is determined according to the preconfigured data transmission state, that is, the terminal switches to the preconfigured data transmission state supporting the second antenna port configuration information, for example, the data transmission state including both the antenna port configuration information supporting that one carrier uses two antenna ports to transmit data and the second antenna port configuration information, and the technical effects are as shown in table 13.
TABLE 13
For uplink carrier switching of 4 bands, based on the above table 3, in the case that there are at least two candidate data transmission states, based on the type of the first antenna port configuration information, different strategies are adopted to determine the data transmission state of the uplink carrier after switching.
If the first antenna port configuration information supports that one carrier wave uses at most one antenna port for transmission, determining a data transmission state of the uplink carrier wave after switching according to the first antenna port configuration information, if the terminal is switched to a data transmission state containing both the first antenna port configuration information and the second antenna port configuration information;
if the first antenna port configuration information supports that two carriers respectively use at most one antenna port for transmission (i.e., the first antenna port configuration information supports that one carrier uses at most one antenna port and supports that the other carrier uses at most one antenna port for transmission of data), the data transmission state of the uplink carrier after switching is determined according to the preconfigured data transmission state, that is, the terminal switches to the preconfigured data transmission state including the second antenna port configuration information, for example, the data transmission state including both the antenna port configuration information supporting that one carrier uses two antenna ports for transmission of data and the second antenna port configuration information, and the technical effects are as shown in table 14.
TABLE 14
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Specifically, examples of the preconfigured data transmission state can be referred to the above embodiments 1 and 2, and in order to avoid repetition, the description is omitted here.
Optionally, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or the step of selecting the data transmission state further including the first antenna port configuration information from the N data transmission states including the second antenna port configuration information, and determining the data transmission state of the uplink carrier after switching includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state further containing the first antenna port configuration information from the N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein N is a positive integer greater than 1.
Optionally, the step of determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information, or the step of selecting the data transmission state including the second antenna port configuration information from the M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching includes:
When the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers respectively use at most one antenna port to transmit data, and none of the N data transmission states including the second antenna port configuration information includes the data transmission state of the first antenna port configuration information:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the preconfigured data transmission state includes antenna port configuration information supporting one carrier to transmit data using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
For example: the first antenna port configuration information is a-x in a state x (where the state x does not include antenna port configuration information supporting one carrier to use two antenna ports to transmit data), and the second antenna port configuration information is a-y (supporting one carrier to use at most one antenna port to transmit data, or supporting two carriers to use at most one antenna port to transmit data, respectively), so that the terminal can determine whether a data transmission state satisfying the fourth condition exists based on the fourth condition, thereby determining the data transmission state of the uplink carrier after switching by adopting different strategies.
Specifically, if the existing state y meets the fourth condition, the state to which the terminal is switched is the state y; the fourth condition includes:
condition 1: supporting first antenna port configuration information A-x;
condition 2: the second antenna port configuration information a-y is supported.
Otherwise (i.e. the absence state y satisfies the fourth condition described above), the state y to which the terminal is switched satisfies a fifth condition comprising:
condition 1: antenna port configuration information for supporting one carrier to transmit data using two antenna ports is included;
condition 2: the second antenna port configuration information a-y is supported.
Or, in the case that the antenna port configuration information a-x supports that two carriers respectively use at most one antenna port to transmit data, the state y to which the terminal is switched is: a preconfigured data transmission state including second antenna port configuration information.
The technical effects achieved by this embodiment can be seen in embodiment 7, and will not be described here again.
Optionally, the performing carrier switching according to the data transmission state of the switched uplink carrier includes:
determining a second radio frequency channel distribution parameter of the uplink carrier after switching according to the data transmission state of the uplink carrier after switching;
And executing carrier switching based on the first radio frequency channel distribution parameter and the second radio frequency channel distribution parameter of the uplink carrier before switching.
And stopping data transmission on the carrier corresponding to the radio frequency channel distribution in the carrier switching time.
The above embodiments are described with respect to the carrier switching method of the present invention, and the following embodiments will further describe a corresponding terminal and carrier switching device with reference to the accompanying drawings.
Specifically, as shown in fig. 3, a terminal 300 according to an embodiment of the present invention includes:
a first processing unit 310, configured to determine first antenna port configuration information of an uplink carrier before switching and second antenna port configuration information of an uplink carrier after switching, where the number of uplink carriers is greater than 2;
a second processing unit 320, configured to determine a data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and a switching unit 330, configured to perform carrier switching according to the data transmission state of the uplink carrier after switching.
Optionally, the second processing unit 320 is further configured to:
in the case where the data transmission state of the uplink carrier before switching contains antenna port configuration information supporting one carrier to transmit data using two antenna ports:
Selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the data transmission state of the uplink data before switching comprises the third antenna port configuration, and the third antenna port configuration information supports one carrier to use at most one antenna port to transmit data; n is a positive integer greater than 1.
Optionally, the second processing unit 320 is further configured to:
in the case that the first antenna port configuration information supports that one carrier uses at most one antenna port to transmit data, and the data transmission state of the uplink carrier before switching further includes antenna port configuration information that supports that two carriers use at most one antenna port to transmit data, respectively:
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein N is an integer greater than 1.
Optionally, the second processing unit 320 is further configured to:
In the case that the first antenna port configuration information supports that two carriers respectively transmit data using at most one antenna port:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the second processing unit 320 is further configured to:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state further containing the first antenna port configuration information from the N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein N is a positive integer greater than 1.
Optionally, the second processing unit 320 is further configured to:
when the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers respectively use at most one antenna port to transmit data, and none of the N data transmission states including the second antenna port configuration information includes the data transmission state of the first antenna port configuration information:
Selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the second processing unit 320 is further configured to:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the preconfigured data transmission state includes antenna port configuration information supporting one carrier to transmit data using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
Optionally, the second processing unit 320 is further configured to:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
The fourth antenna port configuration information is all antenna port configuration information contained in the data transmission state of the uplink data before switching; n is a positive integer greater than 1.
Optionally, the second processing unit 320 is further configured to:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carrier supporting the data transmission is different from the carrier supporting the data transmission of the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1.
Optionally, the second processing unit 320 is further configured to:
determining a second radio frequency channel distribution parameter of the uplink carrier after switching according to the data transmission state of the uplink carrier after switching;
and executing carrier switching based on the first radio frequency channel distribution parameter and the second radio frequency channel distribution parameter of the uplink carrier before switching.
It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) 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: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It should be noted that, the terminal provided by the embodiment of the present application can implement all the method steps implemented by the embodiment of the method and achieve the same technical effects, and the parts and beneficial effects that are the same as those of the embodiment of the method in the embodiment are not described in detail herein.
The terminal according to the embodiment of the application can be a device for providing voice and/or data connectivity for a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited in this respect.
To better achieve the above objects, an embodiment of the present invention provides a carrier switching device, as shown in fig. 4, including a memory 41, a transceiver 42, and a processor 43; wherein the memory 41 is for storing a computer program; the transceiver 42 is used for receiving and transmitting data under the control of the processor 43; such as transceiver 42, for receiving and transmitting data under the control of processor 43; the processor 43 is arranged to read the computer program in said memory 41 and to perform the following operations:
determining configuration information of a first antenna port of an uplink carrier before switching and configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2;
determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and executing carrier switching according to the data transmission state of the uplink carrier after switching.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
in the case where the data transmission state of the uplink carrier before switching contains antenna port configuration information supporting one carrier to transmit data using two antenna ports:
Selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the data transmission state of the uplink data before switching comprises the third antenna port configuration, and the third antenna port configuration information supports one carrier to use at most one antenna port to transmit data; n is a positive integer greater than 1.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
in the case that the first antenna port configuration information supports that one carrier uses at most one antenna port to transmit data, and the data transmission state of the uplink carrier before switching further includes antenna port configuration information that supports that two carriers use at most one antenna port to transmit data, respectively:
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein N is an integer greater than 1.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
in the case that the first antenna port configuration information supports that two carriers respectively transmit data using at most one antenna port:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state further containing the first antenna port configuration information from the N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein N is a positive integer greater than 1.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
When the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers respectively use at most one antenna port to transmit data, and none of the N data transmission states including the second antenna port configuration information includes the data transmission state of the first antenna port configuration information:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
Optionally, the preconfigured data transmission state includes antenna port configuration information supporting one carrier to transmit data using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fourth antenna port configuration information is all antenna port configuration information contained in the data transmission state of the uplink data before switching; n is a positive integer greater than 1.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
The fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carrier supporting the data transmission is different from the carrier supporting the data transmission of the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1.
Optionally, the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:
determining a second radio frequency channel distribution parameter of the uplink carrier after switching according to the data transmission state of the uplink carrier after switching;
and executing carrier switching based on the first radio frequency channel distribution parameter and the second radio frequency channel distribution parameter of the uplink carrier before switching.
Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 43 and various circuits of memory represented by memory 41, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 42 may be a plurality of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, etc. The user interface 44 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 43 is responsible for managing the bus architecture and general processing, and the memory 41 may store data used by the processor 600 in performing operations.
Alternatively, the processor 43 may be a CPU (central processing unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device ), and the processor may also employ a multi-core architecture.
The processor is operable to perform any of the methods provided by embodiments of the present application in accordance with the obtained executable instructions by invoking a computer program stored in a memory. The processor and the memory may also be physically separate.
It should be noted that, the above device provided in the embodiment of the present application can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
The embodiment of the application also provides a processor readable storage medium, which stores a computer program for causing the processor to execute the steps in the carrier switching method and achieve the same technical effects, and the repetition is avoided, and the description is omitted here.
The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Furthermore, it should be noted that in the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order of description, but are not necessarily performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those of ordinary skill in the art that all or any of the steps or components of the methods and apparatus of the present invention may be implemented in hardware, firmware, software, or a combination thereof in any computing device (including processors, storage media, etc.) or network of computing devices, as would be apparent to one of ordinary skill in the art after reading this description of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (24)
1. A carrier switching method, comprising:
determining configuration information of a first antenna port of an uplink carrier before switching and configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2;
determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and executing carrier switching according to the data transmission state of the uplink carrier after switching.
2. The carrier switching method according to claim 1, wherein the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case where the data transmission state of the uplink carrier before switching contains antenna port configuration information supporting one carrier to transmit data using two antenna ports:
Selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the data transmission state of the uplink data before switching comprises the third antenna port configuration, and the third antenna port configuration information supports one carrier to use at most one antenna port to transmit data; n is a positive integer greater than 1.
3. The carrier switching method according to claim 1, wherein the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the first antenna port configuration information supports that one carrier uses at most one antenna port to transmit data, and the data transmission state of the uplink carrier before switching further includes antenna port configuration information that supports that two carriers use at most one antenna port to transmit data, respectively:
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein N is an integer greater than 1.
4. A carrier switching method according to claim 1 or 3, wherein the determining, according to the first antenna port configuration information and/or the second antenna port configuration information, a data transmission state of an uplink carrier after switching includes:
in the case that the first antenna port configuration information supports that two carriers respectively transmit data using at most one antenna port:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
5. The carrier switching method according to claim 1, wherein the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state further containing the first antenna port configuration information from the N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein N is a positive integer greater than 1.
6. The carrier switching method according to claim 1 or 5, wherein the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
when the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers respectively use at most one antenna port to transmit data, and none of the N data transmission states including the second antenna port configuration information includes the data transmission state of the first antenna port configuration information:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
7. The carrier switching method according to claim 1, wherein the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein M is a positive integer.
8. The carrier switching method according to claim 4, 6 or 7, wherein,
the preconfigured data transmission state comprises antenna port configuration information supporting one carrier to transmit data by using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
9. The carrier switching method according to claim 1, wherein the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fourth antenna port configuration information is all antenna port configuration information contained in the data transmission state of the uplink data before switching; n is a positive integer greater than 1.
10. The carrier switching method according to claim 1, wherein the determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information includes:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carrier supporting the data transmission is different from the carrier supporting the data transmission of the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1.
11. The carrier switching method according to claim 1, wherein the performing carrier switching according to the data transmission state of the switched uplink carrier includes:
determining a second radio frequency channel distribution parameter of the uplink carrier after switching according to the data transmission state of the uplink carrier after switching;
And executing carrier switching based on the first radio frequency channel distribution parameter and the second radio frequency channel distribution parameter of the uplink carrier before switching.
12. A carrier switching device, which is characterized by comprising a memory, a transceiver and a processor;
wherein the memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations:
determining configuration information of a first antenna port of an uplink carrier before switching and configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2;
determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and executing carrier switching according to the data transmission state of the uplink carrier after switching.
13. The carrier switching apparatus of claim 12 wherein the processor is configured to read the computer program in the memory and perform the following:
in the case where the data transmission state of the uplink carrier before switching contains antenna port configuration information supporting one carrier to transmit data using two antenna ports:
Selecting a data transmission state containing third antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the data transmission state of the uplink data before switching comprises the third antenna port configuration, and the third antenna port configuration information supports one carrier to use at most one antenna port to transmit data; n is a positive integer greater than 1.
14. The carrier switching apparatus of claim 12 wherein the processor is configured to read the computer program in the memory and perform the following:
in the case that the first antenna port configuration information supports that one carrier uses at most one antenna port to transmit data, and the data transmission state of the uplink carrier before switching further includes antenna port configuration information that supports that two carriers use at most one antenna port to transmit data, respectively:
selecting a data transmission state containing the first antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein N is an integer greater than 1.
15. The carrier switching apparatus according to claim 12 or 14, wherein the processor is configured to read the computer program in the memory and perform the following operations:
in the case that the first antenna port configuration information supports that two carriers respectively transmit data using at most one antenna port:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
16. The carrier switching apparatus of claim 12 wherein the processor is configured to read the computer program in the memory and perform the following:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state further containing the first antenna port configuration information from the N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein N is a positive integer greater than 1.
17. The carrier switching apparatus according to claim 12 or 16, wherein the processor is configured to read the computer program in the memory and perform the following operations:
when the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers respectively use at most one antenna port to transmit data, and none of the N data transmission states including the second antenna port configuration information includes the data transmission state of the first antenna port configuration information:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
wherein M is a positive integer.
18. The carrier switching apparatus of claim 12 wherein the processor is configured to read the computer program in the memory and perform the following:
selecting a data transmission state containing the configuration information of the second antenna port from M preconfigured data transmission states, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
Wherein M is a positive integer.
19. The carrier switching apparatus according to claim 15, 17 or 18, wherein,
the preconfigured data transmission state comprises antenna port configuration information supporting one carrier to transmit data by using two antenna ports;
or,
the preconfigured data transmission state includes antenna port configuration information supporting two carriers to transmit data using at most one antenna port, respectively.
20. The carrier switching apparatus of claim 12 wherein the processor is configured to read the computer program in the memory and perform the following:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state which does not contain fourth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fourth antenna port configuration information is all antenna port configuration information contained in the data transmission state of the uplink data before switching; n is a positive integer greater than 1.
21. The carrier switching apparatus of claim 12 wherein the processor is configured to read the computer program in the memory and perform the following:
in the case that the data transmission state of the uplink carrier before switching includes antenna port configuration information supporting that two carriers transmit data using at most one antenna port, respectively:
selecting a data transmission state containing fifth antenna port configuration information from N data transmission states containing the second antenna port configuration information, and determining the data transmission state as the data transmission state of the uplink carrier after switching;
the fifth antenna port configuration information supports that at most one antenna port is used by two carriers to transmit data, and the carrier supporting the data transmission is different from the carrier supporting the data transmission of the data transmission state of the uplink data before switching, wherein N is a positive integer greater than 1.
22. The carrier switching apparatus of claim 12 wherein the processor is configured to read the computer program in the memory and perform the following:
determining a second radio frequency channel distribution parameter of the uplink carrier after switching according to the data transmission state of the uplink carrier after switching;
And executing carrier switching based on the first radio frequency channel distribution parameter and the second radio frequency channel distribution parameter of the uplink carrier before switching.
23. A terminal, comprising:
the first processing unit is used for determining the configuration information of a first antenna port of an uplink carrier before switching and the configuration information of a second antenna port of an uplink carrier after switching, wherein the number of the uplink carriers is more than 2;
the second processing unit is used for determining the data transmission state of the uplink carrier after switching according to the first antenna port configuration information and/or the second antenna port configuration information;
and the switching unit is used for executing carrier switching according to the data transmission state of the uplink carrier after switching.
24. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to execute the carrier switching method of any one of claims 1 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210444237.3A CN117014896A (en) | 2022-04-25 | 2022-04-25 | Carrier switching method, device and terminal |
| PCT/CN2023/087782 WO2023207591A1 (en) | 2022-04-25 | 2023-04-12 | Carrier switching method, apparatus, and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210444237.3A CN117014896A (en) | 2022-04-25 | 2022-04-25 | Carrier switching method, device and terminal |
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| Publication Number | Publication Date |
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| CN117014896A true CN117014896A (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210444237.3A Pending CN117014896A (en) | 2022-04-25 | 2022-04-25 | Carrier switching method, device and terminal |
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| Country | Link |
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| CN (1) | CN117014896A (en) |
| WO (1) | WO2023207591A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109392142B (en) * | 2017-08-11 | 2022-09-02 | 华为技术有限公司 | Carrier switching and information sending method and device |
| CN113922933B (en) * | 2020-07-10 | 2023-01-06 | 维沃移动通信有限公司 | Carrier switching processing method, device and terminal |
| WO2022027560A1 (en) * | 2020-08-07 | 2022-02-10 | Qualcomm Incorporated | Uplink transmit switch scheduling of carrier aggregation |
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2022
- 2022-04-25 CN CN202210444237.3A patent/CN117014896A/en active Pending
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| WO2023207591A1 (en) | 2023-11-02 |
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