CN116233938A - Communication method, device, storage medium, network equipment and terminal equipment - Google Patents
Communication method, device, storage medium, network equipment and terminal equipment Download PDFInfo
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- CN116233938A CN116233938A CN202310015073.7A CN202310015073A CN116233938A CN 116233938 A CN116233938 A CN 116233938A CN 202310015073 A CN202310015073 A CN 202310015073A CN 116233938 A CN116233938 A CN 116233938A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
The disclosure relates to the technical field of communication, in particular to a communication method, a device, a storage medium and electronic equipment, wherein the communication method comprises the following steps: sending a link switching duration acquisition request to terminal equipment; receiving a first link switching duration and a carrier switching duration returned by the terminal equipment according to the link switching duration acquisition request; determining a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length; returning the second link switching duration and the carrier switching position to the terminal equipment so that the terminal equipment switches the current carrier at the carrier switching position in the second link switching duration; the current carrier is any one carrier of a first carrier and a second carrier, and the uplink and downlink time slot ratio of the first carrier is opposite to the uplink and downlink time slot ratio of the second carrier. The method and the device can improve user experience and network performance.
Description
Technical Field
The disclosure relates to the field of communication technologies, and in particular, to a communication method, a device, a storage medium, a network device and a terminal device.
Background
Time division duplexing (Time Division Duplexing, TDD) refers to the fact that the transceivers share a radio frequency point, the uplink and downlink use different time slots for communication, and a guard interval is located between adjacent time slots.
Currently, the frequency bands of 3.5GHz, 2.6GHz, 4.9GHz and the like currently adopt a TDD mode for network communication. When the network communication is carried out by adopting the TDD mode, the uplink and the downlink share the radio frequency point, so that the uplink and the downlink have good same frequency consistency and high frequency resource utilization rate. And when the network communication is carried out in a TDD mode, the frequencies occupied by different time slots of an uplink and a downlink can be flexibly configured by adjusting the proportion of the uplink and the downlink time slots, so that the network communication in the TDD mode has the advantages of continuous frequency spectrum and large bandwidth, thereby supporting asymmetric service to be in a large bandwidth service, being suitable for hot spot coverage scenes, having lower equipment complexity and being capable of effectively reducing.
However, when the network communication is performed in the TDD mode, because different timeslots are used for communication between the uplink and the downlink, the time delay of performing the network communication in the TDD mode is relatively large, thereby affecting the user experience; and the uplink and downlink high-speed data communication requirements are difficult to meet at the same time, so that the network performance is affected, and the communication efficiency is low.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The disclosure aims to provide a communication method, a device, a storage medium and an electronic device, thereby overcoming the problems that the time delay of network communication is large, user experience is affected, network performance is affected, the requirements of uplink and downlink high-speed data communication are difficult to meet, and the network performance is affected at least to a certain extent.
Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.
According to a first aspect of the present disclosure, there is provided a communication method applied to a network device, including:
sending a link switching duration acquisition request to terminal equipment;
receiving a first link switching duration and a carrier switching duration returned by the terminal equipment according to the link switching duration acquisition request;
determining a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
Returning the second link switching duration and the carrier switching position to the terminal equipment so that the terminal equipment switches the current carrier at the carrier switching position in the second link switching duration; the current carrier is any one carrier of a first carrier and a second carrier, and the uplink and downlink time slot ratios of the first carrier and the second carrier are opposite.
In an exemplary embodiment of the present disclosure, the determining the second link switching duration and the carrier switching position according to the first link switching duration and the carrier switching duration includes:
acquiring the uplink and downlink time slot ratio of the first carrier or the uplink and downlink time slot ratio of the second carrier, the CP duration of the cyclic prefix and the subcarrier spacing SCS;
determining the second link switching duration according to the uplink and downlink time slot ratio of the first carrier or the time slot ratio of the second carrier, the CP duration and the SCS;
and determining the carrier switching position according to the second link switching time length and the carrier switching time length.
In an exemplary embodiment of the present disclosure, the determining the second link switching duration according to the uplink and downlink timeslot ratio of the first carrier or the timeslot ratio of the second carrier, the CP duration, and the SCS includes:
Acquiring a third link switching duration corresponding to the uplink and downlink time slot ratio of the first carrier or the uplink and downlink time slot ratio of the second carrier;
determining a subcarrier interval duration corresponding to the SCS;
and taking the maximum value of the CP duration, the subcarrier interval duration and the third link switching duration as the second link switching duration.
In an exemplary embodiment of the present disclosure, the determining the carrier switch position according to the second link switch duration and the carrier switch duration includes:
acquiring the phase difference time length of the second link switching time length and the carrier switching time length;
and taking any time point in the phase difference time period in the second link switching time period as the carrier switching position.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the first carrier is positioned in the downlink time slot, transmitting hybrid automatic repeat request (HARQ) feedback information of the downlink data of the first carrier and the uplink data of the second carrier to the terminal equipment.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the second carrier is positioned in the downlink time slot, transmitting HARQ feedback information of the downlink data of the second carrier and the uplink data of the first carrier to the terminal equipment.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the first carrier is positioned in the uplink time slot, receiving HARQ feedback information of the uplink data of the first carrier and the downlink data of the second carrier, which are sent by the terminal equipment.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the second carrier is positioned in the uplink time slot, receiving HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier, which are sent by the terminal equipment.
According to a second aspect of the present disclosure, there is provided a communication method applied to a terminal device, including:
receiving a link switching duration acquisition request sent by network equipment;
returning a first link switching time length and a carrier switching time length to the network equipment according to the link switching time length acquisition request so that the network equipment determines a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
receiving the second link switching duration and the carrier switching position returned by the network equipment;
switching the current carrier at a carrier switching position within a second link switching duration; wherein, any one carrier in the first carrier of the current carrier and the second carrier, the up-down time slot ratio of the first carrier is opposite to that of the second carrier.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the first carrier is positioned in the downlink time slot, receiving HARQ feedback information of the downlink data of the first carrier and the uplink data of the second carrier, which are sent by the network equipment.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the second carrier is positioned in the downlink time slot, receiving HARQ feedback information of the downlink data of the second carrier and the uplink data of the first carrier, which are sent by the network equipment.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the first carrier is positioned in the uplink time slot, transmitting HARQ feedback information of the uplink data of the first carrier and the downlink data of the second carrier to the network equipment.
In an exemplary embodiment of the present disclosure, the method further comprises:
and when the time slot of the second carrier is positioned in the uplink time slot, transmitting HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier to the network equipment.
In an exemplary embodiment of the present disclosure, the method further comprises:
And switching downlink service from the first carrier/the second carrier to the second carrier/the first carrier when the first carrier/the second carrier is switched from the downlink time slot to the uplink time slot.
In an exemplary embodiment of the present disclosure, the method further comprises:
when the first carrier/the second carrier is switched from the uplink time slot to the downlink time slot, uplink service is switched from the first carrier/the second carrier to the second carrier/the first carrier.
According to a third aspect of the present disclosure, there is provided a communication apparatus applied to a network device, comprising:
the link switching time length acquisition request sending module is used for sending a link switching time length acquisition request to the terminal equipment;
the first link switching duration receiving module is used for receiving a first link switching duration and a carrier switching duration returned by the terminal equipment according to the link switching duration acquisition request;
the second link switching time length determining module is used for determining a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
a second link switching duration sending module, configured to return the second link switching duration and the carrier switching position to the terminal device, so that the terminal device switches a current carrier at the carrier switching position in the second link switching duration; wherein, any one carrier in the first carrier of the current carrier and the second carrier, the up-down time slot ratio of the first carrier is opposite to that of the second carrier.
According to a fourth aspect of the present disclosure, there is provided a communication apparatus applied to a terminal device, comprising:
the link switching time length acquisition request receiving module is used for receiving a link switching time length acquisition request sent by the network equipment;
the first link switching time length sending module is used for returning a first link switching time length and a carrier switching time length to the network equipment according to the link switching time length obtaining request so that the network equipment can determine a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
a second link switching duration receiving module, configured to receive the second link switching duration and a carrier switching position returned by the network device;
the carrier switching module is used for switching the current carrier at a carrier switching position in the second link switching time length; the current carrier is any one carrier of a first carrier and a second carrier, and the uplink and downlink time slot ratios of the first carrier and the second carrier are opposite.
According to a fifth aspect of the present disclosure, there is provided a network device comprising:
a processor; and
a memory for storing executable instructions of the processor;
Wherein the processor is configured to perform the communication method of any of the first aspects via execution of the executable instructions.
According to a sixth aspect of the present disclosure, there is provided a terminal device comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the communication method of any of the second aspects via execution of the executable instructions.
According to a seventh aspect of the present disclosure, there is provided a storage medium having stored thereon a computer program, characterized in that the computer program, when executed by a processor, implements the communication method according to any one of the first or second aspects.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
in summary, according to the method provided by the present disclosure, the second link switching duration and the carrier switching position are determined according to the first link switching duration and the carrier switching duration, and the second link switching duration and the carrier switching position are returned to the terminal device; the terminal equipment can switch the first carrier wave and the second carrier wave with opposite uplink and downlink time slot ratios of the current carrier wave at the carrier wave switching position in the second link switching time length, and further, uplink and downlink data transmission is simultaneously carried out through the double carrier waves with opposite uplink and downlink time slot ratios, so that the time delay of network communication is reduced, and the user experience is improved; and the uplink and downlink high-speed data communication requirements can be met simultaneously, the network performance is improved, and the communication efficiency is further improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
FIG. 1 schematically illustrates a flow chart of a method of communication in an exemplary embodiment of the present disclosure;
fig. 2 schematically illustrates a schematic diagram of uplink and downlink timeslots of a first carrier and a second carrier in an exemplary embodiment of the present disclosure;
fig. 3 schematically illustrates a schematic diagram of a second link switching duration in an exemplary embodiment of the present disclosure;
FIG. 4 schematically illustrates a flow chart of another communication method in an exemplary embodiment of the present disclosure;
fig. 5 schematically illustrates a signaling interaction diagram of one communication method in an exemplary embodiment of the present disclosure;
fig. 6 schematically illustrates a block diagram of a communication device in an exemplary embodiment of the present disclosure;
Fig. 7 schematically illustrates a block diagram of another communication device in an exemplary embodiment of the present disclosure;
FIG. 8 schematically illustrates a block diagram of a server in an exemplary embodiment of the present disclosure;
fig. 9 schematically illustrates a block diagram of an electronic device in an exemplary embodiment of the present disclosure.
In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Detailed Description
The principles and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are presented merely to enable those skilled in the art to better understand and practice the invention and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Those skilled in the art will appreciate that embodiments of the invention may be implemented as a system, apparatus, device, method, or computer program product. Accordingly, the present disclosure may be embodied in the following forms, namely: complete hardware, complete software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.
In one exemplary embodiment of the present disclosure, a communication method is first provided. Referring to fig. 1, the communication method may include the steps of:
s11, sending a link switching duration acquisition request to terminal equipment;
s12, receiving a first link switching time length and a carrier switching time length returned by the terminal equipment according to the link switching time length acquisition request;
s13, determining a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
s14, returning the second link switching time length and the carrier switching position to the terminal equipment so that the terminal equipment switches the current carrier at the carrier switching position in the second link switching time length; the current carrier is any one carrier of a first carrier and a second carrier, and the uplink and downlink time slot ratio of the first carrier is opposite to the uplink and downlink time slot ratio of the second carrier.
In summary, according to the method provided by the present disclosure, the second link switching duration and the carrier switching position are determined according to the first link switching duration and the carrier switching duration, and the second link switching duration and the carrier switching position are returned to the terminal device; the terminal equipment can switch the first carrier wave and the second carrier wave with opposite uplink and downlink time slot ratios of the current carrier wave at the carrier wave switching position in the second link switching time length, and further, uplink and downlink data transmission is simultaneously carried out through the double carrier waves with opposite uplink and downlink time slot ratios, so that the time delay of network communication is reduced, and the user experience is improved; and the uplink and downlink high-speed data communication requirements can be met simultaneously, the network performance is improved, and the communication efficiency is further improved.
Hereinafter, each step in the communication method in the present exemplary embodiment will be described in more detail with reference to the drawings and examples.
In step S11, a link switching duration acquisition request is transmitted to the terminal device.
In one exemplary embodiment of the present disclosure, the network device may send a link switching duration acquisition request to the terminal device to acquire a first link switching duration and a carrier switching duration of the terminal device. The link switching duration is a duration required to switch uplink/downlink to downlink/uplink. The carrier switching duration refers to a duration required to switch the first carrier/second carrier of the dual carrier to the second carrier/first carrier.
In the embodiment of the disclosure, the uplink and downlink time slot ratios of the first carrier and the second carrier in the dual carrier are opposite. For example, when the uplink and downlink timeslot ratios of the first carrier are m: and when n, the uplink and downlink time slot ratio of the second carrier is n: m, m and n are positive integers. Fig. 2 schematically illustrates a schematic diagram of uplink and downlink timeslots of a first carrier and a second carrier in an exemplary embodiment of the present disclosure. As shown in fig. 2, the uplink/downlink timeslot ratio of the first carrier is 3:2, i.e. 2D3U. The uplink and downlink time slot ratio of the second carrier is 2:3, namely 2U3D.
In step S12, a first link switching duration and a carrier switching duration returned by the terminal device according to the link switching duration acquisition request are received.
In an exemplary embodiment of the present disclosure, the first link switching duration is a link switching duration of the terminal device, and is determined by a hardware configuration of the terminal device.
In step S13, a second link switching duration and a carrier switching position are determined according to the first link switching duration and the carrier switching duration.
Based on the foregoing, in an exemplary embodiment of the disclosure, the determining the second link switching duration and the carrier switching position according to the first link switching duration and the carrier switching duration is described above:
s131, obtaining the uplink and downlink time slot ratio of the first Carrier/the uplink and downlink time slot ratio of the second Carrier, cyclic Prefix (CP) duration and subcarrier spacing (SCS).
The Cyclic Prefix (CP) is formed by copying a signal at the tail of an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol to the head. The length of CP is mainly two kinds, namely a normal cyclic prefix (Normal Cyclic Prefix) and an extended cyclic prefix (Extended Cyclic Prefix). The conventional cyclic prefix length is 4.7 mus and the extended cyclic prefix length is 16.67 mus. The cyclic prefix may be associated with other multipath component information to obtain complete information. In addition, the cyclic prefix can realize the pre-estimation of time and frequency synchronization.
S132, determining the second link switching duration according to the uplink and downlink time slot ratio of the first carrier or the time slot ratio of the second carrier, the CP duration and the SCS.
Based on the foregoing, in an exemplary embodiment of the present disclosure, determining the second link switching duration according to the uplink and downlink timeslot ratio of the first carrier or the timeslot ratio of the second carrier, the CP duration, the SCS, the first link switching duration, and the carrier switching duration includes:
acquiring a third link switching duration corresponding to the uplink and downlink time slot ratio of the first carrier or the uplink and downlink time slot ratio of the second carrier; determining a subcarrier interval duration corresponding to the SCS; and taking the maximum value of the CP duration, the subcarrier interval duration and the third link switching duration as the second link switching duration.
In an exemplary embodiment of the present disclosure, the uplink and downlink timeslot ratios of the first carrier or the uplink and downlink timeslot ratios of the second carrier are different, and the guard interval times of adjacent timeslots are different. Therefore, after the uplink and downlink time slot ratio of the first carrier or the uplink and downlink time slot ratio of the second carrier is obtained, a guard interval time corresponding to the uplink and downlink time slot ratio of the first carrier or the uplink and downlink time slot ratio of the second carrier is determined, and then the guard interval time is used as the third link switching duration. In one embodiment of the present disclosure, if the dimension of the SCS is frequency Hz, the period duration corresponding to the SCS is the subcarrier spacing duration. For example, when SCS is 15KHz, SCS corresponds to a period duration of 1/15KHz, i.e., 0.0667ms. The period duration corresponding to CS is 0.0667ms, which is the subcarrier interval duration.
Further, after the subcarrier interval duration and the third link switching duration are obtained, the maximum value among the subcarrier interval duration, the third link switching duration and the CP duration is used as the second link switching duration. Because the maximum value of the subcarrier interval time, the third link switching time and the CP time is the fastest link switching time which can be supported by the network equipment, the subcarrier interval time, the third link switching time and the CP time are used as the second link switching time, so that communication abnormality caused by too short link switching time can be avoided, and the network communication performance is improved.
S133, determining the carrier switching position according to the second link switching time length and the carrier switching time length.
Based on the foregoing, in an embodiment of the present disclosure, the determining the second link switching duration according to the CP, the SCS, the first link switching duration, and the carrier switching duration includes:
acquiring the phase difference time length of the second link switching time length and the carrier switching time length; and taking any time point in the phase difference time period in the second link switching time period as the carrier switching position.
For example, as shown in fig. 3, the second link switching duration is 60ms, that is, the carrier switching duration is 20ms, and the difference duration between the second link switching duration and the carrier switching duration is 40ms. Further, any one time point within the first 40m of the second link switching duration within 60ms may be used as the carrier switching position.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
and S135, when the time slot of the first carrier is positioned in the downlink time slot, transmitting HARQ feedback information of the downlink data of the first carrier and the uplink data of the second carrier to the terminal equipment.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
s136, when the time slot of the second carrier is located in the downlink time slot, sending HARQ feedback information of the downlink data of the second carrier and the uplink data of the first carrier to the terminal equipment.
When the time slot of the first carrier wave/the second carrier wave is positioned in the downlink time slot, not only the downlink data of the first carrier wave/the second carrier wave is sent to the terminal equipment, but also the HARQ feedback information of the uplink data of the second carrier wave/the first carrier wave is sent to the terminal equipment, so that the downlink HARQ feedback time delay of TDD can be greatly reduced.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
and S137, when the time slot of the first carrier is located in the uplink time slot, receiving HARQ feedback information of uplink data of the first carrier and downlink data of the second carrier sent by the terminal equipment.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
s138, when the time slot of the second carrier is located in the uplink time slot, receiving HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier sent by the terminal equipment.
By sending not only the uplink data of the first carrier/the second carrier to the terminal device, but also the HARQ feedback information of the downlink data of the second carrier/the first carrier to the terminal device when the time slot of the first carrier/the second carrier is located in the uplink time slot, the uplink HARQ feedback delay of TDD can be greatly reduced.
In summary, in the method provided by the present disclosure, the uplink and downlink time slot ratio of the first carrier and the second carrier in the dual carrier is set to be opposite, and when the time slot of the first carrier/the second carrier is located in the downlink time slot, not only downlink data of the first carrier/the second carrier is sent to the terminal device, but also HARQ feedback information of uplink data of the second carrier/the first carrier is sent to the terminal device, so that dual carriers of downlink HARQ feedback delay of TDD can be greatly reduced; meanwhile, when the time slot of the first carrier wave/the second carrier wave is positioned in an uplink time slot, not only uplink data of the first carrier wave/the second carrier wave is sent to the terminal equipment, but also HARQ feedback information of downlink data of the second carrier wave/the first carrier wave is sent to the terminal equipment, so that the uplink HARQ feedback time delay of TDD can be greatly reduced, the method provided by the disclosure can simultaneously transmit uplink and downlink data, further, the time delay of network communication is reduced, and the user experience is improved; and the uplink and downlink high-speed data communication requirements can be met simultaneously, the network performance is improved, and the communication efficiency is further improved.
In an exemplary embodiment of the present disclosure, referring to fig. 4, a communication method is provided, which may be used for a terminal device, and specifically may include:
s41, receiving a link switching duration acquisition request sent by network equipment;
s42, returning a first link switching time length and a carrier switching time length to the network equipment according to the link switching time length acquisition request so that the network equipment determines a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
s43, receiving the second link switching duration and the carrier switching position returned by the network equipment;
s44, switching the current carrier at a carrier switching position in the second link switching time period; wherein, any one carrier in the first carrier of current carrier and second carrier, the up-down time slot ratio of the first carrier is opposite with the up-down time slot ratio of the second carrier.
In summary, in the method provided by the present disclosure, the first carrier and the second carrier with opposite uplink and downlink time slot ratios are switched at the carrier switching position in the second link switching duration, so that uplink and downlink data are simultaneously transmitted through the dual carriers with opposite uplink and downlink time slot ratios, thereby reducing the time delay of network communication and improving the user experience; and the uplink and downlink high-speed data communication requirements can be met simultaneously, the network performance is improved, and the communication efficiency is further improved.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
s45, when the time slot of the first carrier is located in the downlink time slot, receiving HARQ feedback information of downlink data of the first carrier and uplink data of the second carrier, which are sent by the network equipment.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
and S46, when the time slot of the second carrier is positioned in the downlink time slot, receiving HARQ feedback information of the downlink data of the second carrier and the uplink data of the first carrier, which are sent by the network equipment.
By receiving not only the downlink data of the first carrier/second carrier sent by the network device, but also the HARQ feedback information of the uplink data of the second carrier/first carrier sent by the network device when the time slot of the first carrier/second carrier is located in the downlink time slot, the downlink HARQ feedback delay of TDD can be greatly reduced.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
and S47, when the time slot of the first carrier is positioned in the uplink time slot, transmitting HARQ feedback information of the uplink data of the first carrier and the downlink data of the second carrier to the network equipment.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
and S48, when the time slot of the second carrier is positioned in the uplink time slot, transmitting HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier to the network equipment.
By receiving not only the uplink data of the first carrier/second carrier transmitted by the network device, but also the HARQ feedback information of the downlink data of the second carrier/first carrier transmitted by the network device when the time slot of the first carrier/second carrier is located in the uplink time slot, the uplink HARQ feedback delay of TDD can be greatly reduced.
Based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
s49, when the first carrier/the second carrier is switched from the downlink timeslot to the uplink timeslot, switching downlink traffic from the first carrier/the second carrier to the second carrier/the first carrier.
By switching downlink traffic from the first carrier/the second carrier to the second carrier/the first carrier when the first carrier/the second carrier is switched from the downlink time slot to the uplink time slot, the continuity, the integrity and the timeliness of the downlink traffic of the full time slot can be ensured, and thus the requirement of large downlink traffic can be met.
S50, based on the foregoing, in an exemplary embodiment of the disclosure, the method further includes:
when the first carrier/the second carrier is switched from the uplink time slot to the downlink time slot, uplink service is switched from the first carrier/the second carrier to the second carrier/the first carrier.
By switching uplink traffic from the first carrier/the second carrier to the second carrier/the first carrier when the first carrier/the second carrier is switched from the uplink time slot to the downlink time slot, the continuity, the integrity and the timeliness of the uplink traffic of the full time slot can be ensured, and thus the requirement of large uplink traffic can be met.
In an exemplary embodiment of the present disclosure, referring to fig. 5, in step 501, for a network device, a link switch duration acquisition request is sent to a terminal device; for the terminal device, in step 502, a link switching duration acquisition request sent by the network device is received; in step 503, a first link switching duration and a carrier switching duration are returned to the network device according to the link switching duration acquisition request; for the network device, in step 504, a first link switching duration and the carrier switching duration returned by the terminal device according to the link switching duration acquisition request are received; in step 505, determining a second link switching duration and a carrier switching position according to the first link switching duration and the carrier switching duration; in step 506, returning the second link switching duration and the carrier switching position to the terminal device; for the terminal device, in step 507, the second link switching duration and the carrier switching position returned by the network device are received; in step 508, switching the current carrier at a carrier switching position within a second link switching duration; wherein, any one carrier in the first carrier of current carrier and second carrier, the up-down time slot ratio of the first carrier is opposite with the up-down time slot ratio of the second carrier.
In summary, the method provided by the present disclosure can utilize the characteristic of opposite TDD dual-carrier timeslot proportioning, realize a full duplex function of frequency division duplex in time domain complementation, and only need to adjust uplink and downlink timeslot proportioning of dual carriers, so as to realize cross-carrier flexible adjustment, and can endow TDD spectrum with one-network multi-capability, improve the capacity and reliability of the TDD system, greatly reduce TDD delay, and simultaneously satisfy three capabilities of large bandwidth, low delay and high reliability, and simultaneously satisfy large uplink and large downlink service for users and enterprises, and promote spectrum efficiency and user experience.
It is noted that the above-described figures are only schematic illustrations of processes involved in a method according to an exemplary embodiment of the invention, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
Further, referring to fig. 6, in this exemplary embodiment, there is further provided a communication apparatus 60, which may be configured in a network device, where the apparatus includes: a link switching duration acquisition request sending module 601, a first link switching duration receiving module 602, a second link switching duration determining module 603, and a second link switching duration sending module 604. Wherein, the liquid crystal display device comprises a liquid crystal display device,
A link switching duration acquisition request sending module 601, configured to send a link switching duration acquisition request to a terminal device;
a first link switching duration receiving module 602, configured to receive a first link switching duration and a carrier switching duration returned by the terminal device according to the link switching duration acquisition request;
a second link switching duration determining module 603, configured to determine a second link switching duration and a carrier switching position according to the first link switching duration and the carrier switching duration;
a second link switching duration sending module 604, configured to return the second link switching duration and the carrier switching position to the terminal device, so that the terminal device switches the current carrier at the carrier switching position in the second link switching duration; wherein, any one carrier in the first carrier of the current carrier and the second carrier, the up-down time slot ratio of the first carrier is opposite to that of the second carrier.
In an exemplary embodiment of the present disclosure, the second link switching duration determining module includes:
a cyclic prefix duration obtaining unit, configured to obtain an uplink and downlink timeslot ratio of the first carrier or an uplink and downlink timeslot ratio of the second carrier, a cyclic prefix CP duration, and a subcarrier spacing SCS;
A second link switching duration determining unit, configured to determine the second link switching duration according to the uplink and downlink timeslot ratio of the first carrier or the timeslot ratio of the second carrier, the CP duration, and the SCS;
and the carrier switching position determining unit is used for determining the carrier switching position according to the second link switching time length and the carrier switching time length.
In an exemplary embodiment of the present disclosure, the second link switching duration determining unit includes:
a third link switching duration obtaining unit, configured to obtain a third link switching duration corresponding to an uplink and downlink timeslot ratio of the first carrier or an uplink and downlink timeslot ratio of the second carrier;
a subcarrier spacing duration determining unit, configured to determine a subcarrier spacing duration corresponding to the SCS;
and a second link switching duration acquiring unit, configured to use a maximum value among the CP duration, the subcarrier interval duration, and the third link switching duration as the second link switching duration.
In an exemplary embodiment of the present disclosure, the carrier switching position determining unit includes:
the phase difference time length obtaining unit is used for obtaining the phase difference time length of the second link switching time length and the carrier switching time length;
And the carrier switching position acquisition unit is used for taking any time point in the phase difference time length in the second link switching time length as the carrier switching position.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the first downlink data sending module is used for sending the hybrid automatic repeat request (HARQ) feedback information of the downlink data of the first carrier and the uplink data of the second carrier to the terminal equipment when the time slot of the first carrier is positioned in the downlink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the second downlink data sending module is used for sending the downlink data of the second carrier and the HARQ feedback information of the uplink data of the first carrier to the terminal equipment when the time slot of the second carrier is positioned in the downlink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the first uplink data sending module is used for receiving HARQ feedback information of the uplink data of the first carrier and the downlink data of the second carrier sent by the terminal equipment when the time slot of the first carrier is positioned in the uplink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the second uplink data sending module is used for receiving HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier sent by the terminal equipment when the time slot of the second carrier is positioned in the uplink time slot.
Further, referring to fig. 7, in this exemplary embodiment, there is further provided a communication apparatus 70, which may be configured in a terminal device, where the apparatus includes: a link switching duration acquisition request receiving module 701, a first link switching duration transmitting module 702, a second link switching duration receiving module 703, and a carrier switching module 704. Wherein, the liquid crystal display device comprises a liquid crystal display device,
a link switching duration acquisition request receiving module 701, configured to receive a link switching duration acquisition request sent by a network device;
a first link switching duration sending module 702, configured to return a first link switching duration and a carrier switching duration to the network device according to the link switching duration acquisition request, so that the network device determines a second link switching duration and a carrier switching position according to the first link switching duration and the carrier switching duration;
A second link switching duration receiving module 703, configured to receive the second link switching duration and a carrier switching position returned by the network device;
a carrier switching module 704, configured to switch the current carrier at a carrier switching position within the second link switching duration; the current carrier is any one carrier of a first carrier and a second carrier, and the uplink and downlink time slot ratio of the first carrier is opposite to the uplink and downlink time slot ratio of the second carrier.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the first downlink data receiving module is used for receiving the downlink data of the first carrier and the HARQ feedback information of the uplink data of the second carrier, which are sent by the network equipment, when the time slot of the first carrier is positioned in the downlink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the second downlink data receiving module is used for receiving HARQ feedback information of the downlink data of the second carrier and the uplink data of the first carrier, which are sent by the network equipment, when the time slot of the second carrier is positioned in the downlink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
And the first uplink data sending module is used for sending the HARQ feedback information of the uplink data of the first carrier and the downlink data of the second carrier to the network equipment when the time slot of the first carrier is positioned in the uplink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the second uplink data sending module is used for sending the HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier to the network equipment when the time slot of the second carrier is positioned in the uplink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the downlink service switching module is used for switching downlink service from the first carrier wave/the second carrier wave to the second carrier wave/the first carrier wave when the first carrier wave/the second carrier wave is switched from the downlink time slot to the uplink time slot.
In an exemplary embodiment of the present disclosure, the apparatus further comprises:
and the uplink service switching module is used for switching uplink service from the first carrier wave/the second carrier wave to the second carrier wave/the first carrier wave when the first carrier wave/the second carrier wave is switched from the uplink time slot to the downlink time slot.
Since each functional module of the communication device according to the embodiment of the present invention is the same as that of the above-described communication method according to the embodiment of the present invention, a detailed description thereof will be omitted.
Further, referring to fig. 8, there is also provided in an exemplary embodiment of the present disclosure a network device 80 comprising: a processor 801; and a memory 802 for storing executable instructions of the processor; wherein the processor is configured to perform the communication method applied to the network device according to the above embodiment via execution of the executable instructions.
The specific details of each module in the above-mentioned communication device 60, communication device 70 and communication apparatus 80 have been described in detail in the corresponding communication method, and thus will not be described herein.
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Fig. 9 shows a schematic diagram of a terminal device suitable for implementing an embodiment of the invention.
It should be noted that the terminal device 90 shown in fig. 9 is only an example, and should not impose any limitation on the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 9, the terminal apparatus 90 includes a central processing unit (Central Processing Unit, CPU) 901 which can execute various appropriate actions and processes in accordance with a program stored in a Read-Only Memory (ROM) 902 or a program loaded from a storage portion 908 into a random access Memory (Random Access Memory, RAM) 903. In the RAM 903, various programs and data required for system operation are also stored. The CPU 901, ROM 1002, and RAM 903 are connected to each other via a bus 904. An Input/Output (I/O) interface 905 is also connected to bus 904.
The following components are connected to the I/O interface 905: an input section 906 including a keyboard, a mouse, and the like; an output section 907 including a speaker and the like, such as a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and the like; a storage portion 908 including a hard disk or the like; and a communication section 909 including a network interface card such as a LAN (Local Area Network ) card, a modem, or the like. The communication section 909 performs communication processing via a network such as the internet. The drive 910 is also connected to the I/O interface 905 as needed. Removable media 911 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed as needed on the drive 910 so that a computer program read out therefrom is installed as needed into the storage section 908.
In particular, according to embodiments of the present invention, the processes described below with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from the network via the communication portion 909 and/or installed from the removable medium 911. When the computer program is executed by a Central Processing Unit (CPU) 901, various functions defined in the system of the present application are performed.
Specifically, the terminal device may be an intelligent mobile terminal device such as a mobile phone, a tablet computer or a notebook computer. Alternatively, the terminal device may be an intelligent terminal device such as a desktop computer.
It should be noted that, the computer readable medium shown in the embodiments of the present invention may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing.
More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units involved in the embodiments of the present invention may be implemented by software, or may be implemented by hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.
It should be noted that, as another aspect, the present application also provides a computer readable medium, which may be included in an electronic device; or may exist alone without being incorporated into the electronic device. The computer-readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the methods described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 4.
Furthermore, the above-described drawings are only schematic illustrations of processes included in the method according to the exemplary embodiment of the present invention, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (20)
1. A method of communication, for use with a network device, comprising:
sending a link switching duration acquisition request to terminal equipment;
receiving a first link switching duration and a carrier switching duration returned by the terminal equipment according to the link switching duration acquisition request;
determining a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
returning the second link switching duration and the carrier switching position to the terminal equipment so that the terminal equipment switches the current carrier at the carrier switching position in the second link switching duration; the current carrier is any one carrier of a first carrier and a second carrier, and the uplink and downlink time slot ratio of the first carrier is opposite to the uplink and downlink time slot ratio of the second carrier.
2. The method of claim 1, wherein the determining a second link switch duration and a carrier switch position from the first link switch duration and the carrier switch duration comprises:
Acquiring the uplink and downlink time slot ratio of the first carrier or the uplink and downlink time slot ratio of the second carrier, the CP duration of the cyclic prefix and the subcarrier spacing SCS;
determining the second link switching duration according to the uplink and downlink time slot ratio of the first carrier or the time slot ratio of the second carrier, the CP duration and the SCS;
and determining the carrier switching position according to the second link switching time length and the carrier switching time length.
3. The method of claim 2, wherein the determining the second link switch duration according to the uplink and downlink timeslot ratio of the first carrier or the timeslot ratio of the second carrier, the CP duration, and the SCS comprises:
acquiring a third link switching duration corresponding to the uplink and downlink time slot ratio of the first carrier or the uplink and downlink time slot ratio of the second carrier;
determining a subcarrier interval duration corresponding to the SCS;
and taking the maximum value of the CP duration, the subcarrier interval duration and the third link switching duration as the second link switching duration.
4. The method of claim 2, wherein said determining the carrier switch position based on the second link switch duration and the carrier switch duration comprises:
Acquiring the phase difference time length of the second link switching time length and the carrier switching time length;
and taking any time point in the phase difference time period in the second link switching time period as the carrier switching position.
5. The method according to claim 1, wherein the method further comprises:
and when the time slot of the first carrier is positioned in the downlink time slot, transmitting hybrid automatic repeat request (HARQ) feedback information of the downlink data of the first carrier and the uplink data of the second carrier to the terminal equipment.
6. The method according to claim 1, wherein the method further comprises:
and when the time slot of the second carrier is positioned in the downlink time slot, transmitting HARQ feedback information of the downlink data of the second carrier and the uplink data of the first carrier to the terminal equipment.
7. The method according to claim 1, wherein the method further comprises:
and when the time slot of the first carrier is positioned in the uplink time slot, receiving HARQ feedback information of the uplink data of the first carrier and the downlink data of the second carrier, which are sent by the terminal equipment.
8. The method according to claim 1, wherein the method further comprises:
And when the time slot of the second carrier is positioned in the uplink time slot, receiving HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier, which are sent by the terminal equipment.
9. A communication method, applied to a terminal device, comprising:
receiving a link switching duration acquisition request sent by network equipment;
returning a first link switching time length and a carrier switching time length to the network equipment according to the link switching time length acquisition request so that the network equipment determines a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
receiving the second link switching duration and the carrier switching position returned by the network equipment;
switching the current carrier at a carrier switching position within a second link switching duration; wherein, any one carrier in the first carrier of current carrier and second carrier, the up-down time slot ratio of the first carrier is opposite with the up-down time slot ratio of the second carrier.
10. The method according to claim 9, wherein the method further comprises:
and when the time slot of the first carrier is positioned in the downlink time slot, receiving HARQ feedback information of the downlink data of the first carrier and the uplink data of the second carrier, which are sent by the network equipment.
11. The method according to claim 9, wherein the method further comprises:
and when the time slot of the second carrier is positioned in the downlink time slot, receiving HARQ feedback information of the downlink data of the second carrier and the uplink data of the first carrier, which are sent by the network equipment.
12. The method according to claim 9, wherein the method further comprises:
and when the time slot of the first carrier is positioned in the uplink time slot, transmitting HARQ feedback information of the uplink data of the first carrier and the downlink data of the second carrier to the network equipment.
13. The method according to claim 9, wherein the method further comprises:
and when the time slot of the second carrier is positioned in the uplink time slot, transmitting HARQ feedback information of the uplink data of the second carrier and the downlink data of the first carrier to the network equipment.
14. The method according to claim 9, wherein the method further comprises:
and switching downlink service from the first carrier/the second carrier to the second carrier/the first carrier when the first carrier/the second carrier is switched from the downlink time slot to the uplink time slot.
15. The method according to claim 9, wherein the method further comprises:
when the first carrier/the second carrier is switched from the uplink time slot to the downlink time slot, uplink service is switched from the first carrier/the second carrier to the second carrier/the first carrier.
16. A communication apparatus, for use with a network device, comprising:
the link switching time length acquisition request sending module is used for sending a link switching time length acquisition request to the terminal equipment;
the first link switching duration receiving module is used for receiving a first link switching duration and a carrier switching duration returned by the terminal equipment according to the link switching duration acquisition request;
the second link switching time length determining module is used for determining a second link switching time length and a carrier switching position according to the first link switching time length and the carrier switching time length;
a second link switching duration sending module, configured to return the second link switching duration and the carrier switching position to the terminal device, so that the terminal device switches a current carrier at the carrier switching position in the second link switching duration; wherein, any one carrier in the first carrier of current carrier and second carrier, the up-down time slot ratio of the first carrier is opposite with the up-down time slot ratio of the second carrier.
17. A communication apparatus, characterized by being applied to a terminal device, comprising:
the link switching time length acquisition request receiving module is used for receiving a link switching time length acquisition request sent by the network equipment;
the first link switching duration sending module is used for returning a first link switching duration and a carrier switching duration to the network equipment according to the link switching duration acquisition request so that the network equipment can determine a second link switching duration and a carrier switching position according to the first link switching duration and the carrier switching duration;
a second link switching duration receiving module, configured to receive the second link switching duration and a carrier switching position returned by the network device;
the carrier switching module is used for switching the current carrier at a carrier switching position in the second link switching time length; the current carrier is any one carrier of a first carrier and a second carrier, and the uplink and downlink time slot ratio of the first carrier is opposite to the uplink and downlink time slot ratio of the second carrier.
18. A network device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
Wherein the processor is configured to perform the communication method of any one of claims 1 to 8 via execution of the executable instructions.
19. A terminal device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the communication method of any of claims 9 to 15 via execution of the executable instructions.
20. A storage medium having stored thereon a computer program, which when executed by a processor implements the communication method according to any of claims 1 to 8 or claims 9-15.
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| CN202310015073.7A CN116233938A (en) | 2023-01-05 | 2023-01-05 | Communication method, device, storage medium, network equipment and terminal equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116545467A (en) * | 2023-07-04 | 2023-08-04 | 中国电信股份有限公司 | Radio frequency circuit, control method and related equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116545467A (en) * | 2023-07-04 | 2023-08-04 | 中国电信股份有限公司 | Radio frequency circuit, control method and related equipment |
| CN116545467B (en) * | 2023-07-04 | 2023-10-03 | 中国电信股份有限公司 | Radio frequency circuit, control method and related equipment |
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