CN114363978B - Carrier switching method, management node, terminal node and storage medium - Google Patents
Carrier switching method, management node, terminal node and storage medium Download PDFInfo
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- CN114363978B CN114363978B CN202011083830.7A CN202011083830A CN114363978B CN 114363978 B CN114363978 B CN 114363978B CN 202011083830 A CN202011083830 A CN 202011083830A CN 114363978 B CN114363978 B CN 114363978B
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Abstract
A carrier switching method, a management node, a terminal node and a storage medium. The method comprises the following steps: receiving carrier quantity indication information used for transmitting first data; receiving downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data; and when the carrier quantity indication information indicates that the number of carriers used for transmitting the first data is 1, determining all carriers for transmitting the first data based on the carrier switching indication information so as to transmit the first data. By adopting the scheme, the terminal node can be dynamically instructed to carry out carrier switching.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a carrier switching method, a management node, a terminal node, and a storage medium.
Background
A carrier wave, i.e. a radio wave of a specific frequency carrying data. In wireless communication, the frequency of data to be transmitted is generally low frequency, and if transmitted according to the frequency of the data itself, reception and synchronization are not facilitated. Using carrier transmission, the signal loading of the data to be transmitted can be modulated onto the signal of a high-frequency carrier. The receiving end receives the data signal according to the frequency of the carrier wave, and then extracts the needed data signal through the difference of the wave amplitude.
At present, a support management node in a protocol configures a plurality of carriers for a terminal node, and by using a carrier switching technology, the terminal node can select a proper carrier on a plurality of continuous or discrete carriers to transmit or receive data, and can simplify the processing of transmission and reception under the condition that the bandwidth of a receiving end is limited.
However, when the management node configures a plurality of carriers for the terminal node, there is currently no solution as to how to instruct the terminal node to perform carrier switching.
Disclosure of Invention
The invention aims to solve the problems that: when the management node configures a plurality of carriers for the terminal node, how to instruct the terminal node to perform carrier switching.
In order to solve the above problems, an embodiment of the present invention provides a carrier switching method, which includes:
receiving carrier quantity indication information used for transmitting first data;
Receiving downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data;
And when the carrier quantity indication information indicates that the number of carriers used for transmitting the first data is 1, determining all carriers for transmitting the first data based on the carrier switching indication information so as to transmit the first data.
Optionally, the method further comprises:
When the carrier quantity indication information indicates that the number of carriers used for transmitting the first data is more than two, acquiring identification information of other carriers for transmitting the first data, wherein the other carriers are carriers except for the carrier indicated by the carrier switching indication information in all carriers for transmitting the first data;
And determining all carriers for transmitting the first data based on the carrier switching indication information and the identification information of other carriers for transmitting the first data so as to transmit the first data.
Optionally, the acquiring the identification information of the other carrier transmitting the first data includes:
Receiving RRC signaling, wherein the RRC signaling comprises carrier bias information;
and taking the carrier identification information indicated in the carrier offset information as identification information of other carriers for transmitting the first data.
Optionally, the acquiring the identification information of the other carrier transmitting the first data includes:
Receiving RRC signaling, wherein the RRC signaling comprises carrier bias information;
Combining the downlink control information to obtain identification information of other carriers for transmitting the first data from the carrier offset information; the downlink control information further includes: index values of identification information of other carriers transmitting the first data in the carrier offset information.
Optionally, the method further comprises:
and determining corresponding hybrid automatic repeat request carrier identification information based on the carrier switching indication information and the identification information of other carriers for transmitting the first data so as to feed back whether the first data is successfully received.
Optionally, when the carrier number indication information indicates that the number of carriers used for transmitting the first data is 1, determining all carriers for transmitting the first data based on the carrier switching indication information includes:
and taking the carrier corresponding to the carrier identification indicated in the carrier switching indication information as all carriers for transmitting the first data.
Optionally, the method further comprises:
And determining corresponding hybrid automatic repeat request carrier identification information based on the carrier switching indication information so as to feed back whether the first data is successfully received.
The embodiment of the invention also provides a carrier switching method, which comprises the following steps:
transmitting carrier quantity indication information used for transmitting first data;
Transmitting downlink control information, and transmitting the first data through the carrier quantity indication information and the downlink control information;
The downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating carrier identification for transmitting the first data.
Optionally, the method further comprises:
and sending RRC signaling, wherein the RRC signaling comprises carrier bias information.
The embodiment of the invention also provides a terminal node, which comprises:
A first receiving unit adapted to receive carrier number indication information used for transmitting the first data;
The second receiving unit is suitable for receiving the downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data;
And a first determining unit adapted to determine all carriers transmitting the first data based on the carrier switching indication information to perform transmission of the first data when the carrier number indication information indicates that the number of carriers used to transmit the first data is 1.
Optionally, the terminal node further comprises:
An obtaining unit, adapted to obtain identification information of other carriers for transmitting the first data when the carrier number indication information indicates that the number of carriers used for transmitting the first data is more than two, where the other carriers are carriers except for the carrier indicated by the carrier switching indication information in all carriers for transmitting the first data;
and the second determining unit is suitable for determining all carriers for transmitting the first data based on the carrier switching indication information and the identification information of other carriers for transmitting the first data so as to transmit the first data.
Optionally, the acquiring unit is adapted to receive RRC signaling, where the RRC signaling includes carrier offset information; and taking the carrier identification information indicated in the carrier offset information as identification information of other carriers for transmitting the first data.
Optionally, the acquiring unit is adapted to receive RRC signaling, where the RRC signaling includes carrier offset information; combining the downlink control information to obtain identification information of other carriers for transmitting the first data from the carrier offset information; the downlink control information further includes: index values of identification information of other carriers transmitting the first data in the carrier offset information.
Optionally, the terminal node further comprises: and a third determining unit, adapted to determine, based on the carrier switching indication information and the identification information of the other carriers transmitting the first data, the corresponding hybrid automatic repeat request carrier identification information, so as to feedback whether the first data is successfully received.
Optionally, the first determining unit is adapted to, when the carrier number indication information indicates that the number of carriers used for transmitting the first data is 1, use carriers corresponding to the carrier identifications indicated in the carrier switching indication information as all carriers for transmitting the first data.
Optionally, the terminal node further comprises: and a fourth determining unit, adapted to determine, based on the carrier switching indication information, corresponding hybrid automatic repeat request carrier identification information, so as to feedback whether the first data is successfully received.
The embodiment of the invention also provides a management node, which comprises:
a first transmitting unit adapted to transmit carrier number indication information used for transmitting the first data;
The second sending unit is suitable for sending downlink control information, and the transmission of the first data is realized through the carrier quantity indication information and the downlink control information;
The downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating carrier identification for transmitting the first data.
Optionally, the management node further includes:
And the third sending unit is suitable for sending RRC signaling, and the RRC signaling comprises carrier bias information.
The embodiment of the invention also provides a terminal node, which comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the steps of any one of the methods when running the computer program.
The embodiment of the invention also provides a management node, which comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the steps of any one of the methods when running the computer program.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program for execution by a processor to perform the steps of any of the methods.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:
By adopting the scheme, the carrier quantity used for transmitting the first data is indicated through the carrier quantity indication information, and the carrier for specifically transmitting the first data is selected through the downlink control information, so that carrier switching of the terminal node can be realized when the management node configures a plurality of carriers for the terminal node. In addition, the carrier wave for specifically transmitting the first data is dynamically indicated through the downlink control information, and compared with the carrier wave for specifically transmitting the first data by using a static mode, the management node can select a better carrier wave according to the state of each carrier wave to transmit the first data, so that the wireless resource of the communication system can be more effectively utilized, and the throughput of the system is improved.
Drawings
Fig. 1 is a flowchart of a carrier switching method according to an embodiment of the present invention;
Fig. 2 is a flowchart of another carrier switching method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal node according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a management node according to an embodiment of the present invention.
Detailed Description
In the existing protocol, a scheme is provided how to instruct the terminal node to perform carrier switching when the management node configures a carrier for the terminal node. In particular, the management node may indicate a carrier identity for transmitting or receiving data through radio resource control (Radio Resource Control, RRC) signaling.
However, when the management node configures a plurality of carriers for the terminal node, how to instruct the terminal node to perform carrier switching is not yet solved.
In view of the above problems, the present invention provides a carrier switching method, which indicates, through carrier number indication information, the number of carriers used for transmitting the first data, and then selects, through downlink control information, a carrier for specifically transmitting the first data, so that carrier switching of a terminal node can be implemented when a management node configures a plurality of carriers for the terminal node. In addition, the carrier wave for specifically transmitting the first data is dynamically indicated through the downlink control information, and compared with a mode of using RRC signaling, the management node can select a better carrier wave according to the state of each carrier wave to transmit the first data, so that the wireless resource of the communication system can be more effectively utilized, and the throughput of the system is improved.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Referring to fig. 1, an embodiment of the present invention provides a carrier switching method, which may include the following steps:
step 11, receiving carrier quantity indication information used for transmitting the first data.
In an embodiment of the present invention, the first data is any data to be transmitted. The length of the first data is not limited, and may be only one frame or multiple frames.
In a specific implementation, the carrier data indication information is used to indicate the number of carriers used for transmitting the first data. The number of carriers used for transmitting the first data may be only one carrier, or may be multiple carriers, which is not particularly limited.
In a specific implementation, the management node may send the carrier number indication information in a plurality of manners, for example, the management node may send the carrier number indication information through RRC signaling.
Step 12, receiving downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating carrier identification for transmitting the first data.
In a specific implementation, the management node sends the carrier switching indication information through the downlink control information, and the management node can dynamically select a better carrier for data transmission according to the state of the carrier instead of sending the carrier switching indication information through RRC signaling. For example, the management node may select a better carrier to transmit the first data according to the data carrying capacity of each carrier and the corresponding channel state condition, so as to improve the utilization rate of the radio resource.
In a specific implementation, the carrier switching indication information may indicate, by an explicit manner, a carrier identifier for transmitting the first data, that is, the carrier identifier for transmitting the first data is directly indicated in the carrier switching indication information. The carrier switching indication information may also indicate, by an implicit manner, the carrier identifier for transmitting the first data, that is, the carrier identifier for transmitting the first data is indirectly indicated in the carrier switching indication information.
In an embodiment of the present invention, the management node may directly indicate, in the carrier switch indication information, an index value of a carrier transmitting the first data, and may find a corresponding carrier from a plurality of carriers configured by the management node for the terminal node according to the index value of the carrier, to transmit the first data.
And step 13, determining all carriers for transmitting the first data so as to transmit the first data.
In a specific implementation, the carrier number indication information indicates that the number of carriers used for transmitting the first data is different, and different methods may be adopted to determine all carriers for transmitting the first data.
In an embodiment of the present invention, when the carrier number indication information indicates that the number of carriers used for transmitting the first data is 1, all carriers transmitting the first data may be determined based on the carrier switching indication information.
Specifically, whether the carrier switch indication information indicates the carrier identifier for transmitting the first data in an explicit manner or indicates the carrier identifier for transmitting the first data in an implicit manner, the carrier corresponding to the carrier identifier indicated in the carrier switch indication information may be directly used as all carriers for transmitting the first data.
For example, when the index value of the carrier in the carrier switching indication information is 2, the carrier with the index value of 2 may be found directly from the plurality of carriers configured by the management node for the terminal node, so as to transmit the first data.
In another embodiment of the present invention, when the carrier number indication information indicates that the number of carriers used for transmitting the first data is more than two, for example, 3 or 5, the plurality of carriers used for transmitting the first data may be continuous or discrete, and is not limited in particular.
When the plurality of carriers used for transmitting the first data are consecutive plurality of carriers, the carrier identifier indicated in the carrier switching indication information may be an identifier of a start carrier in the consecutive plurality of carriers, an identifier of an end carrier in the consecutive plurality of carriers, or an identifier of a carrier in a middle position in the consecutive plurality of carriers, which is not particularly limited. The carrier identifier indicated in the carrier switching indication information may be predetermined as an identifier of which carrier, and after receiving the carrier switching indication information, the terminal node may determine a plurality of carriers for transmitting the first data according to the carrier identifier indicated in the carrier switching indication information.
For example, when the number of carriers used for transmitting the first data is 5, at this time, the carrier index value indicated in the carrier switching indication information is 2, and the carrier indicated in the carrier switching indication information is the identity of the starting carrier among the continuous 5 carriers, the management node is configured for the terminal node, from the carrier with the index value of 2 to the carrier with the index value of 6, and is the carrier used for transmitting the first data.
When the plurality of carriers used for transmitting the first data are discrete plurality of carriers, the carrier identification indicated by the carrier switching indication information in the downlink control information is only part of the carriers in the first data carrier, but not all the carriers.
In this case, the carrier identifier indicated in the carrier switching indication information may be an identifier of a start carrier among the plurality of discrete carriers, an identifier of an end carrier among the plurality of discrete carriers, or an identifier of a carrier located at a middle position among the plurality of discrete carriers, and is not particularly limited. The carrier identifier indicated in the carrier switching indication information may be pre-agreed as an identifier of which carrier and an interval between pre-agreed adjacent carriers, and after receiving the carrier switching indication information, the terminal node may determine, according to the carrier identifier indicated in the carrier switching indication information and the interval between pre-agreed adjacent carriers, a plurality of carriers for transmitting the first data. The intervals between adjacent carriers may be the same or different, and are not particularly limited.
For example, when the number of carriers used for transmitting the first data is 3, at this time, the carrier index value indicated in the carrier switching indication information is 3, and the carrier indicated in the carrier switching indication information is predetermined to be the identifier of the intermediate carrier of the discrete 3 carriers, and the interval between adjacent carriers is 1 carrier, then the management node is configured as the terminal node, and among the plurality of carriers configured as the terminal node, three carriers with index values of 1, 3, and 5 are used as the carriers used for transmitting the first data.
In a specific implementation, in order to further improve the utilization rate of the radio resource, the interval between adjacent carriers may be different among a plurality of discrete carriers of the plurality of carriers for transmitting the first data. At this time, when determining all carriers for transmitting the first data, the terminal node may first acquire identification information of other carriers for transmitting the first data, and then determine all carriers for transmitting the first data based on the carrier switching indication information and the identification information of the other carriers for transmitting the first data, so as to transmit the first data. And the other carriers are carriers except for the carrier indicated by the carrier switching indication information in all the carriers for transmitting the first data.
In a specific implementation, the terminal node may obtain the identification information of the other carrier transmitting the first data through various methods, for example, the identification information of the other carrier transmitting the first data may be stored in advance.
In an embodiment of the present invention, the identification information of the other carrier transmitting the first data may be acquired through RRC signaling sent by the management node. Carrier offset (carrier offset) information may be included in the RRC signaling. The carrier offset information includes identification information of a plurality of carriers, and the carrier identification information in the carrier offset information is different from the carrier identification information in the carrier switching instruction information.
When all carriers corresponding to the carrier identification information in the carrier offset information are all used as other carriers for transmitting the first data, the terminal node can directly use the carrier identification information indicated in the carrier offset information as the identification information of the other carriers for transmitting the first data.
When a part of carriers corresponding to all carrier identification information in the carrier offset information are used as other carriers for transmitting the first data, the management node can set index values of the identification information of the other carriers for transmitting the first data in the carrier offset information in the downlink control information, and the terminal node can acquire the identification information of the other carriers for transmitting the first data from the carrier offset information by combining the downlink control information.
For example, all carrier index values in the carrier offset information are index values 2, 3, and 4, respectively. At this time, if the index value of the identification information of the other carrier transmitting the first data indicated in the downlink control information in the carrier offset information is 2, the terminal node may use the carrier corresponding to the 2 nd index value in the carrier offset information as the other carrier transmitting the first data, that is, the management node configures, for the terminal node, the carrier with the index value of 3 in the multiple carriers as the other carrier transmitting the first data.
In the specific implementation, the index value of the identification information of the other carrier transmitting the first data indicated in the downlink control information in the carrier offset information may be only one or may be plural, which is not limited in particular.
And after other carriers for transmitting the first data are determined, the other carriers are used as all carriers for transmitting the first data together with the carrier identification indicated in the carrier switching indication information.
In an implementation, when the first data is transmitted on multiple carriers, only one carrier of the multiple carriers may be used for data transmission at a time. For example, when the number of carriers for transmitting the first data is 2 and the length of the first data is M radio frames, the first M/2 radio frames may be uploaded on one carrier indicated in the carrier switch indication information, and the last M/2 radio frames may be transmitted on another carrier.
It will be appreciated that the specific first data may be transmitted on a plurality of carriers, and may be pre-agreed by the protocol, and this is not a limitation of the present invention.
In a specific implementation, the first data may be uplink transmission, that is, the terminal node sends the first data to the management node, where the terminal node is a first data sending end and the management node is a first data receiving end, and the terminal node determines a carrier position for sending the first data by using the carrier switching method in the embodiment of the present invention.
In a specific implementation, the first data may be transmitted in a downlink manner, that is, the management node sends the first data to the terminal node, where the management node is a first data sending end and the terminal node is a first data receiving end, and the terminal node determines a carrier position for receiving the first data by using the carrier switching method in the embodiment of the present invention.
In a specific implementation, in a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ), after receiving the first data, the receiving end needs to perform Acknowledgement (ACK)/non-acknowledgement (NACK) feedback on whether the first data is successfully received, whether it is uplink transmission or downlink transmission.
In an embodiment of the present invention, in order to save wireless transmission resources, a receiving end may determine, according to a carrier identifier for transmitting first data, corresponding HARQ carrier identifier information, so as to feedback whether the first data is successfully received. In this case, the receiving end may be a management node or a terminal node.
When the carrier identification of the first data is transmitted only according to the carrier switching indication information, the corresponding hybrid automatic repeat request carrier identification information can be determined only based on the carrier switching indication information so as to feed back whether the first data is successfully received.
When the carrier identification of the first data needs to be determined according to the carrier switching indication information and the identification information of the other carriers for transmitting the first data, the corresponding hybrid automatic repeat request carrier identification information can be determined based on the carrier switching indication information and the identification information of the other carriers for transmitting the first data so as to feed back whether the first data is successfully received.
In a specific implementation, an operation method may be pre-agreed, and after the carrier identifier for transmitting the first data is obtained, the corresponding hybrid automatic repeat request carrier identifier information is obtained through the pre-agreed operation method.
For example, if the carrier index value for transmitting the first data is P, the corresponding hybrid automatic repeat request carrier q=p mod T, where T is the total number of carriers for transmitting the first data.
In other embodiments, the corresponding harq carrier identification information may be obtained by other methods, which are not limited herein.
Referring to fig. 2, another carrier switching method is provided in an embodiment of the present invention, and the method may include the following steps:
step 21, transmitting carrier quantity indication information used for transmitting the first data.
With respect to step 21, the implementation may be specifically performed with reference to the description of step 11, which is described in detail herein.
Step 22, sending downlink control information, where the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating carrier identification for transmitting the first data.
The step 22 may be specifically performed with reference to the descriptions of the steps 12 and 13, which are not repeated herein.
When the carrier number indication information indicates that the number of carriers used for transmitting the first data is 1, the terminal node may determine all carriers for transmitting the first data based on the carrier switching indication information, so as to transmit the first data.
When the carrier number indication information indicates that the number of carriers used for transmitting the first data is more than two, the method may further include the steps of:
Step 23, sending an RRC signaling, where the RRC signaling includes carrier offset information.
Based on the carrier offset information, the terminal node may obtain identification information of other carriers for transmitting the first data, where the other carriers are carriers except for the carrier indicated by the carrier switching indication information in all carriers for transmitting the first data. And the terminal node determines all carriers for transmitting the first data based on the carrier switching indication information and the identification information of other carriers for transmitting the first data so as to transmit the first data.
When a part of carriers corresponding to all carrier identification information in the carrier offset information are used as other carriers for transmitting the first data, the management node can set index values of the identification information of the other carriers for transmitting the first data in the carrier offset information in the downlink control information, and the terminal node can acquire the identification information of the other carriers for transmitting the first data from the carrier offset information by combining the downlink control information.
With respect to step 23, the above description of step 13 may be referred to specifically, and will not be repeated here.
From the above, it can be seen that the carrier switching method in the embodiment of the present invention can realize dynamic carrier switching, which is beneficial to improving the wireless resource utilization rate.
In order to better understand and implement the present invention, a detailed description of the apparatus and computer readable storage medium corresponding to the above method is provided below.
Referring to fig. 3, an embodiment of the present invention further provides a terminal node 30, where the terminal node 30 may include: a first receiving unit 31, a second receiving unit 32 and a first determining unit 33. Wherein:
The first receiving unit 31 is adapted to receive carrier number indication information used for transmitting the first data;
The second receiving unit 32 is adapted to receive downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data;
The first determining unit 33 is adapted to determine all carriers transmitting the first data based on the carrier switch indication information for transmission of the first data when the carrier number indication information indicates that the number of carriers used for transmission of the first data is 1.
In an embodiment of the present invention, the terminal node 30 may further include an obtaining unit 34 and a second determining unit 35. Wherein:
The obtaining unit 34 is adapted to obtain, when the carrier number indication information indicates that the number of carriers used for transmitting the first data is more than two, identification information of other carriers for transmitting the first data, where the other carriers are carriers other than the carrier indicated by the carrier switching indication information among all carriers for transmitting the first data;
The second determining unit 35 is adapted to determine all carriers transmitting the first data based on the carrier switching indication information and the identification information of other carriers transmitting the first data, so as to perform the transmission of the first data.
In an embodiment of the present invention, the obtaining unit 34 is adapted to receive RRC signaling, where the RRC signaling includes carrier offset information; and taking the carrier identification information indicated in the carrier offset information as identification information of other carriers for transmitting the first data.
In an embodiment of the present invention, the obtaining unit 34 is adapted to receive RRC signaling, where the RRC signaling includes carrier offset information; combining the downlink control information to obtain identification information of other carriers for transmitting the first data from the carrier offset information; the downlink control information further includes: index values of identification information of other carriers transmitting the first data in the carrier offset information.
In an embodiment of the invention, the terminal node 30 may further comprise a third determining unit 36. Wherein the third determining unit 36 is adapted to determine, based on the carrier switch indication information and the identification information of the other carriers transmitting the first data, the corresponding hybrid automatic repeat request carrier identification information, so as to feed back whether the first data is successfully received.
In an embodiment of the present invention, the first determining unit 33 is adapted to, when the carrier number indication information indicates that the number of carriers used for transmitting the first data is 1, use carriers corresponding to the carrier identifications indicated in the carrier switch indication information as all carriers for transmitting the first data.
In an embodiment of the present invention, the terminal node 30 may further include: a fourth determination unit (not shown). The fourth determining unit is adapted to determine, based on the carrier switching indication information, corresponding hybrid automatic repeat request carrier identification information, so as to feed back whether the first data is successfully received.
The units in the terminal node 30 may be specifically implemented with reference to the corresponding descriptions of the steps 11 to 13, which are not described herein.
Referring to fig. 4, an embodiment of the present invention further provides a management node 40, the management node 40 may include: first transmitting unit 41 and second transmitting unit 42. Wherein:
a first transmitting unit 41 adapted to transmit carrier number indication information used for transmitting the first data;
A second transmitting unit 42, adapted to transmit downlink control information, and implement transmission of the first data through the carrier number indication information and the downlink control information;
The downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating carrier identification for transmitting the first data.
In an embodiment of the present invention, the management node 40 may further include: a third transmitting unit 43. The third sending unit 43 is adapted to send RRC signaling, where the RRC signaling includes carrier offset information.
The units in the management node 40 may be specifically implemented with reference to the corresponding descriptions of the steps 11 to 13, which are not described herein.
There is also provided in an embodiment of the invention another end node comprising a memory and a processor, the memory having stored thereon a computer program capable of running on the processor, the processor executing the steps of the method shown in fig. 1 when the computer program is run.
There is also provided in an embodiment of the invention another management node comprising a memory and a processor, the memory having stored thereon a computer program capable of running on the processor, the processor executing the steps of the method shown in fig. 2 when the computer program is run.
In particular embodiments, a node refers to a network node, which refers to a computer or other device, that is connected to a network having a separate address and having the capability to transmit or receive data. The network node may be a workstation, a client, a network user or a personal computer, but also a server, a printer and other network connected devices. Each workstation, server, terminal equipment and network equipment, namely equipment with own unique network address, are network nodes.
In an embodiment of the present invention, the management node refers to a network node capable of managing the terminal node. Whether it is a management node or a terminal node, belongs to a network node.
There is also provided in an embodiment of the invention a computer readable storage medium having stored thereon a computer program for execution by a processor to perform the steps of the method of any of the above embodiments.
In particular implementations, the computer-readable storage medium may include: ROM, RAM, magnetic or optical disks, etc.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (13)
1. A carrier switching method, comprising:
receiving carrier quantity indication information used for transmitting first data;
Receiving downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data;
When the carrier quantity indication information indicates that the number of carriers used for transmitting the first data is 1, determining all carriers for transmitting the first data based on the carrier switching indication information so as to transmit the first data;
When the carrier quantity indication information indicates that the number of carriers used for transmitting the first data is more than two, acquiring identification information of other carriers for transmitting the first data, wherein the other carriers are carriers except for the carrier indicated by the carrier switching indication information in all carriers for transmitting the first data;
Determining all carriers for transmitting the first data based on the carrier switching indication information and the identification information of other carriers for transmitting the first data so as to transmit the first data;
The acquiring the identification information of other carriers for transmitting the first data includes: receiving RRC signaling, wherein the RRC signaling comprises carrier bias information; the carrier identification information indicated in the carrier offset information is used as identification information of other carriers for transmitting the first data;
Or the acquiring the identification information of other carriers for transmitting the first data includes: receiving RRC signaling, wherein the RRC signaling comprises carrier bias information; combining the downlink control information to obtain identification information of other carriers for transmitting the first data from the carrier offset information; the downlink control information further includes: index values of identification information of other carriers transmitting the first data in the carrier offset information.
2. The carrier switching method of claim 1, further comprising:
and determining corresponding hybrid automatic repeat request carrier identification information based on the carrier switching indication information and the identification information of other carriers for transmitting the first data so as to feed back whether the first data is successfully received.
3. The carrier switching method of claim 1, wherein the determining all carriers transmitting the first data based on the carrier switching indication information when the carrier number indication information indicates that the number of carriers used to transmit the first data is 1, comprises:
and taking the carrier corresponding to the carrier identification indicated in the carrier switching indication information as all carriers for transmitting the first data.
4. The carrier switching method of claim 1, further comprising:
And determining corresponding hybrid automatic repeat request carrier identification information based on the carrier switching indication information so as to feed back whether the first data is successfully received.
5. A carrier switching method, comprising:
transmitting carrier quantity indication information used for transmitting first data;
transmitting downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data; the transmission of the first data is realized through the carrier quantity indication information and the downlink control information;
When the carrier quantity indication information indicates that the number of carriers used for transmitting the first data is 1, determining all carriers for transmitting the first data based on the carrier switching indication information;
when the carrier quantity indication information indicates that the number of carriers used for transmitting the first data is more than two, an RRC signaling is sent, wherein the RRC signaling comprises carrier offset information; carrier identification information is indicated in the carrier bias information;
The carrier identification information indicated in the carrier offset information is used as identification information of other carriers for transmitting the first data; or the downlink control information further includes: index values of identification information of other carriers transmitting the first data in the carrier offset information are combined with the downlink control information, and the identification information of the other carriers transmitting the first data is obtained from the carrier offset information.
6. A terminal node, comprising:
A first receiving unit adapted to receive carrier number indication information used for transmitting the first data;
The second receiving unit is suitable for receiving the downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data;
A first determining unit adapted to determine all carriers transmitting the first data based on the carrier switching indication information to perform transmission of the first data when the carrier number indication information indicates that the number of carriers used to transmit the first data is 1;
An obtaining unit, adapted to obtain identification information of other carriers for transmitting the first data when the carrier number indication information indicates that the number of carriers used for transmitting the first data is more than two, where the other carriers are carriers except for the carrier indicated by the carrier switching indication information in all carriers for transmitting the first data;
A second determining unit adapted to determine all carriers transmitting the first data based on the carrier switching indication information and the identification information of other carriers transmitting the first data, so as to transmit the first data;
The acquiring unit is adapted to receive an RRC signaling, where the RRC signaling includes carrier offset information; and taking the carrier identification information indicated in the carrier offset information as identification information of other carriers for transmitting the first data;
Or the acquiring unit is adapted to receive an RRC signaling, where the RRC signaling includes carrier offset information; combining the downlink control information to obtain identification information of other carriers for transmitting the first data from the carrier offset information; the downlink control information further includes: index values of identification information of other carriers transmitting the first data in the carrier offset information.
7. The end node of claim 6, further comprising: and a third determining unit, adapted to determine, based on the carrier switching indication information and the identification information of the other carriers transmitting the first data, the corresponding hybrid automatic repeat request carrier identification information, so as to feedback whether the first data is successfully received.
8. The terminal node according to claim 6, wherein the first determining unit is adapted to, when the carrier number indication information indicates that the number of carriers used for transmitting the first data is 1, use carriers corresponding to carrier identifications indicated in the carrier switching indication information as all carriers for transmitting the first data.
9. The end node of claim 6, further comprising: and a fourth determining unit, adapted to determine, based on the carrier switching indication information, corresponding hybrid automatic repeat request carrier identification information, so as to feedback whether the first data is successfully received.
10. A management node, comprising:
a first transmitting unit adapted to transmit carrier number indication information used for transmitting the first data;
The second sending unit is suitable for sending downlink control information; the downlink control information includes: carrier switching indication information; the carrier switching indication information is used for indicating a carrier identifier for transmitting the first data; the transmission of the first data is realized through the carrier quantity indication information and the downlink control information;
A third sending unit, adapted to send RRC signaling when the carrier number indication information indicates that the number of carriers used for transmitting the first data is more than two, where the RRC signaling includes carrier offset information; carrier identification information is indicated in the carrier bias information;
Wherein when the carrier number indication information indicates that the number of carriers used for transmitting the first data is 1, determining all carriers for transmitting the first data based on the carrier switching indication information;
The carrier identification information indicated in the carrier offset information is used as identification information of other carriers for transmitting the first data; or the downlink control information further includes: index values of identification information of other carriers transmitting the first data in the carrier offset information are combined with the downlink control information, and the identification information of the other carriers transmitting the first data is obtained from the carrier offset information.
11. An end node comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, the processor executing the steps of the method according to any of claims 1 to 4 when the computer program is executed.
12. A management node comprising a memory and a processor, the memory having stored thereon a computer program capable of running on the processor, the processor executing the steps of the method of claim 5 when the computer program is run.
13. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program is executed by a processor to implement the steps of the method of any of claims 1 to 5.
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| KR101720315B1 (en) * | 2009-07-10 | 2017-03-28 | 한국전자통신연구원 | Method of performing handover in wireless communication system |
| CN108668371B (en) * | 2017-03-28 | 2023-07-18 | 中兴通讯股份有限公司 | Data transmission method and device and terminal |
| CN109802799B (en) * | 2017-11-17 | 2024-12-03 | 华为技术有限公司 | Carrier switching method, device and storage medium for multi-carrier communication |
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