CN109392153B - User equipment, method for acquiring beam information thereof and computer readable medium - Google Patents
User equipment, method for acquiring beam information thereof and computer readable medium Download PDFInfo
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- CN109392153B CN109392153B CN201710689639.9A CN201710689639A CN109392153B CN 109392153 B CN109392153 B CN 109392153B CN 201710689639 A CN201710689639 A CN 201710689639A CN 109392153 B CN109392153 B CN 109392153B
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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
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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Abstract
A user equipment and a method for acquiring beam information thereof, and a computer readable medium. The method for the user equipment to acquire the beam information comprises the following steps: acquiring beam information of a data channel according to preset rules and control information transmitted by a control channel or beam information of the control channel in a time-sharing manner; and receiving data for the corresponding data channel based on the acquired beam information of the data channel. By applying the scheme, on one hand, the problem of resource waste caused by directly using the beam information in the control information for the data channel and the problem of processing overhead caused by inconsistency of the beam for receiving the control channel and the beam for receiving the data channel can be avoided; on the other hand, more flexible beams can be configured for the data channel, thereby obtaining higher antenna gain.
Description
Technical Field
Embodiments of the present invention relate to the field of communications, and in particular, to a user equipment, a method for acquiring beam information thereof, and a computer-readable medium.
Background
In the 5 th generation mobile communication system, a base station indicates beam information of a data channel through control information of a control channel, and is used for a User Equipment (UE) to receive the data channel. However, there is no specific scheme for how the base station indicates the beam information of the data channel through the control information of the control channel.
For the beam information of the data channel indicated by the control information of the control channel, if the beam information in the control information is directly used for the data channel of the time slot/subframe/transmission time interval, the UE needs to demodulate the control information first and then can acquire the beam information of the data channel, which may result in a certain waste of resources. In addition, in the same timeslot, if the beam used by the UE to receive the control channel is not consistent with the beam used to receive the data channel, the UE needs a certain time to perform beam switching, which may cause additional processing overhead.
Disclosure of Invention
The technical problem solved by the embodiment of the invention is how to acquire the beam information of the data channel so as to avoid resource waste and extra processing overhead.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for a user equipment to obtain beam information, where the method includes: acquiring beam information of a data channel according to preset rules and control information transmitted by a control channel or beam information of the control channel in a time-sharing manner; and receiving data for the corresponding data channel based on the acquired beam information of the data channel.
Optionally, the obtaining the beam information of the data channel according to the preset rule by time-sharing the control information transmitted through the control channel or the beam information of the control channel includes: for the data channel of the scheduled first time slot/subframe/transmission time interval, acquiring the beam information of the data channel through the beam information of the control channel; and for the data channels except the scheduled first time slot/sub-frame/transmission time interval, acquiring the beam information of the data channels through the control information transmitted by the last control channel before the time slot/sub-frame/transmission time interval of the data channels, wherein the control information transmitted by the last control channel comprises the beam information of the data channels.
Optionally, for a data channel other than the scheduled first slot/subframe/transmission time interval, a difference between a slot/subframe/transmission time interval in which the last control channel is located and a slot/subframe/transmission time interval in which the data channel is located is less than or equal to a preset first threshold.
Optionally, the ue receives the preset first threshold through a high-level signaling, MAC information, or control information of a control channel.
Optionally, for a data channel other than the scheduled first time slot/subframe/transmission time interval, when control information transmitted by a control channel before the time slot/subframe/transmission time interval in which the data channel is located does not include beam information of the data channel, or when a difference between the scheduled time slot/subframe/transmission time interval in which the latest control channel is located and the time slot/subframe/transmission time interval in which the data channel is located is greater than a preset first threshold, beam information of the data channel is obtained through the beam information of the control channel corresponding to the data channel.
Optionally, the user equipment is continuously scheduled or non-continuously scheduled.
Optionally, when the ue is scheduled discontinuously, a difference between a first timeslot/subframe/transmission time interval of a subsequent segment of data channel and a timeslot/subframe/transmission time interval of a previous segment of latest control channel is less than or equal to a preset second threshold, where control information transmitted by the previous segment of latest control channel includes beam information of the data channel.
Optionally, the ue receives a preset second threshold through a high-level signaling, MAC information, or control information of a control channel.
An embodiment of the present invention provides a user equipment, where the user equipment includes: the acquisition unit is suitable for acquiring the beam information of the data channel through the control information transmitted by the control channel or the beam information of the control channel in a time-sharing manner according to a preset rule; and the first receiving unit is suitable for receiving data of the corresponding data channel based on the acquired beam information of the data channel.
Optionally, the obtaining unit includes: a first obtaining subunit, adapted to obtain, for a data channel of a scheduled first slot/subframe/transmission time interval, beam information of the data channel through the beam information of the control channel; and the second acquiring subunit is suitable for acquiring the beam information of the data channel by the control information transmitted by the latest control channel before the time slot/subframe/transmission time interval of the data channel for the data channel except the scheduled first time slot/subframe/transmission time interval, wherein the control information transmitted by the latest control channel comprises the beam information of the data channel.
Optionally, for a data channel other than the first scheduled time slot/subframe/transmission time interval, a difference between a time slot/subframe/transmission time interval in which the last control channel is located and a time slot/subframe/transmission time interval in which the data channel is located is less than or equal to a preset first threshold.
Optionally, the user equipment further includes: and the second receiving unit is suitable for receiving a preset first threshold configured by the base station through high-level signaling, MAC information or control information of a control channel.
Optionally, the first obtaining subunit is further adapted to, for a data channel other than the scheduled first time slot/subframe/transmission time interval, obtain the beam information of the data channel through the beam information of the control channel corresponding to the data channel when control information transmitted by a control channel before the time slot/subframe/transmission time interval in which the data channel is located does not include the beam information of the data channel, or when a difference between the time slot/subframe/transmission time interval in which the latest control channel is located and the time slot/subframe/transmission time interval in which the data channel is located is greater than a preset first threshold.
Optionally, the user equipment is continuously scheduled or non-continuously scheduled.
Optionally, when the ue is scheduled discontinuously, a difference between a first timeslot/subframe/transmission time interval of a subsequent segment of data channel and a timeslot/subframe/transmission time interval of a previous segment of latest control channel is less than or equal to a preset second threshold, where control information transmitted by the previous segment of latest control channel includes beam information of the data channel.
Optionally, the user equipment further includes: and the third receiving unit is suitable for receiving a preset second threshold configured by the base station through high-level signaling, MAC information or control information of a control channel.
An embodiment of the present invention provides a computer-readable medium, on which computer instructions are stored, and when the computer instructions are executed, the computer instructions perform steps corresponding to any one of the above methods for a user equipment to acquire beam information.
The embodiment of the invention provides user equipment, which comprises a memory and a processor, wherein a computer instruction capable of being operated on the processor is stored in the memory, and when the processor operates the computer instruction, the corresponding steps of any method for acquiring beam information by the user equipment are executed.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, the UE acquires the beam information of the data channel through the control information transmitted by the control channel or the beam information of the control channel in a time-sharing manner according to the preset rule. On one hand, because the beam information of the data channel can be acquired through the beam information of the control channel, the problem of resource waste caused by directly using the beam information in the control information for the data channel and the problem of processing overhead caused by inconsistency of the beam for receiving the control channel and the beam for receiving the data channel can be avoided. On the other hand, because the beam information of the data channel can be acquired through the control information transmitted by the control channel, more flexible beams can be configured for the data channel, thereby obtaining higher antenna gain.
Drawings
Fig. 1 is a flowchart of a method for a user equipment to acquire beam information according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a timing relationship of data received by a ue according to an embodiment of the present invention;
fig. 3 is a schematic timing relationship diagram of receiving data by another ue according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
Detailed Description
In the NR system, a base station indicates beam information of a data channel through control information of a control channel for a UE to perform reception of the data channel. However, there is no specific scheme for how the base station indicates the beam information of the data channel through the control information of the control channel.
According to the embodiment of the invention, the UE acquires the beam information of the data channel through the control information transmitted by the control channel or the beam information of the control channel in a time-sharing manner according to the preset rule. On one hand, because the beam information of the data channel can be acquired through the beam information of the control channel, the problem of resource waste caused by directly using the beam information in the control information for the data channel and the problem of processing overhead caused by inconsistency of the beam for receiving the control channel and the beam for receiving the data channel can be avoided. On the other hand, because the beam information of the data channel can be acquired through the control information transmitted by the control channel, more flexible beams can be configured for the data channel, thereby obtaining higher antenna gain.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, a method for acquiring beam information by a user equipment according to an embodiment of the present invention may include the following steps:
s101, according to a preset rule, the beam information of the data channel is acquired through the control information transmitted by the control channel or the beam information of the control channel in a time-sharing manner.
In a specific implementation, the beam information in the control information may be directly used for the data channel of the current slot, the current subframe, or the current transmission time interval (referred to as the current slot/subframe/transmission time interval for short). According to the scheme, the user equipment is required to demodulate the control information first and then can acquire the beam information of the data channel, so that certain resource waste is caused. In addition, in the same time slot, if the beam used for receiving the control channel and the beam used for receiving the data channel are not consistent, a certain time is also needed for beam switching, which may bring additional processing overhead, so the embodiment of the present invention proposes to acquire the beam information of the data channel by time-sharing the control information transmitted through the control channel or the beam information of the control channel according to a preset rule.
In an embodiment of the present invention, the following preset rules may be adopted to perform time-sharing acquisition: for the data channel of the scheduled first time slot/subframe/transmission time interval, the beam information of the data channel can be acquired through the beam information of the control channel, so that the problem of resource waste caused by directly using the beam information in the control information for the data channel of the time slot/subframe/transmission time interval and the problem of processing overhead caused by inconsistency between the beam used for receiving the control channel and the beam used for the data channel are avoided. For the data channels except the scheduled first time slot/sub-frame/transmission time interval, the beam information of the data channel can be acquired through the control information transmitted by the last control channel before the time slot/sub-frame/transmission time interval where the data channel is located, wherein the control information transmitted by the last control channel comprises the beam information of the data channel. The beam information of the data channel is acquired through the control information transmitted by the control channel, and more flexible beams can be configured for the data channel, so that higher antenna gain is obtained.
In an embodiment of the present invention, the preset rule may further include: for a data channel other than the scheduled first slot/subframe/transmission time interval, in order to improve accuracy of obtaining beam information, a difference between a slot/subframe/transmission time interval in which the latest control channel is located and a slot/subframe/transmission time interval in which the data channel is located may be constrained to be less than or equal to a preset first threshold, where the control information transmitted by the latest control channel includes beam information of the data channel. And when the difference value between the time slot/subframe/transmission time interval of the latest control channel and the time slot/subframe/transmission time interval of the data channel is greater than a preset first threshold, the beam information carried by the control information transmitted by the latest control channel is invalid and has no indicating function any more.
In a specific implementation, the preset first threshold is configured by the base station, and the ue may receive the preset first threshold through a high-level signaling, may receive the preset first threshold through MAC information, and may receive the preset first threshold through control information of a control channel.
In an embodiment of the present invention, the preset rule may further include: for a data channel outside a scheduled first time slot/subframe/transmission time interval, when control information transmitted by a control channel before the time slot/subframe/transmission time interval of the data channel does not contain beam information of the data channel, or when a difference value between the scheduled time slot/subframe/transmission time interval of the latest control channel and the time slot/subframe/transmission time interval of the data channel is greater than a preset first threshold, it indicates that the beam information of the data channel cannot be acquired through the control information transmitted by the latest control channel, and at this time, the beam information of the data channel can be acquired directly through the beam information of the control channel corresponding to the data channel.
In a specific implementation, the ue may be scheduled continuously or scheduled non-continuously.
In an embodiment of the present invention, when the ue is scheduled discontinuously, in order to improve accuracy of obtaining beam information, the preset rule may further include: and the difference value between the first time slot/sub-frame/transmission time interval of the next section of data channel and the time slot/sub-frame/transmission time interval of the last section of control channel is less than or equal to a preset second threshold, wherein the control information transmitted by the last section of control channel comprises the beam information of the data channel.
In a specific implementation, the preset second threshold is configured by the base station, and the ue may receive the preset second threshold through a high-level signaling, may receive the preset second threshold through MAC information, and may receive the preset second threshold through control information of a control channel.
And S102, receiving data of the corresponding data channel based on the acquired beam information of the data channel.
By applying the scheme, the user equipment acquires the beam information of the data channel according to the preset rule through the control information transmitted by the control channel or the beam information of the control channel in a time-sharing manner. On one hand, because the beam information of the data channel can be acquired through the beam information of the control channel, the problem of resource waste caused by directly using the beam information in the control information for the data channel and the problem of processing overhead caused by inconsistency of the beam for receiving the control channel and the beam for receiving the data channel can be avoided. On the other hand, because the beam information of the data channel can be acquired through the control information transmitted by the control channel, more flexible beams can be configured for the data channel, thereby obtaining higher antenna gain.
In order to make those skilled in the art better understand and implement the present invention, the embodiment of the present invention provides a schematic timing relationship diagram of data received by a ue, as shown in fig. 2.
Referring to fig. 2, the user equipment is continuously scheduled in slots Slot0, slot1 and Slot2 to receive data through a data channel indicated by a control channel. And setting the preset first threshold to be 2. By applying the above scheme, the user equipment obtains the beam information of the data channel as follows:
for the data channel of the scheduled first time Slot (Slot 0), the beam information of the data channel of the Slot0 is acquired through the receiving beam of the control channel of the Slot0, and data receiving is carried out.
For the data channel of the scheduled second time Slot (Slot 1), if the control information carried by the control channel of Slot0 does not contain the beam information of the data channel, acquiring the beam information of the data channel of Slot1 through the receiving beam of the control channel of Slot1, and receiving data; and if the control information carried by the control channel of the Slot0 comprises the beam information of the data channel, acquiring the beam information of the data channel of the Slot1 through the beam information contained in the control information carried by the control channel of the Slot0 to receive data.
For the data channel of the scheduled third time Slot (Slot 2), if the control information carried by the control channel of Slot1 contains the beam information of the data channel, the beam information of the data channel of Slot2 is acquired through the beam information contained in the control information of Slot1, and data reception is carried out; if the control information carried by the control channel of the Slot1 does not contain the beam information of the data channel, but the control information carried by the control channel of the Slot0 contains the beam information of the data channel, acquiring the beam information of the data channel of the Slot2 through the beam information contained in the control information of the Slot0, and receiving data; and if the control information carried by the control channel of the Slot1 does not contain the beam information of the data channel and the control information carried by the control channel of the Slot0 does not contain the beam information of the data channel, acquiring the beam information of the data channel of the Slot2 through the receiving beam of the control channel of the Slot2, and receiving the data.
In order to make those skilled in the art understand and implement the present invention better, another embodiment of the present invention is directed to the schematic timing relationship diagram of the ue receiving data shown in fig. 2, and the preset first threshold is set to be 1. By applying the above scheme, the user equipment obtains the beam information of the data channel as follows:
for the data channel of the scheduled first time Slot (Slot 0), the beam information of the data channel of the Slot0 is acquired through the receiving beam of the control channel of the Slot0, and data receiving is carried out.
For the data channel of the scheduled second time Slot (Slot 1), if the control information carried by the control channel of Slot0 does not contain the beam information of the data channel, acquiring the beam information of the data channel of Slot1 through the receiving beam of the control channel of Slot1, and receiving data; and if the control information carried by the control channel of the Slot0 comprises the beam information of the data channel, acquiring the beam information of the data channel of the Slot1 through the beam information contained in the control information carried by the control channel of the Slot0 to receive data.
For the data channel of the scheduled third time Slot (Slot 2), if the control information carried by the control channel of Slot1 contains the beam information of the data channel, the beam information of the data channel of Slot2 is acquired through the beam information contained in the control information of Slot1, and data reception is carried out; and if the control information carried by the control channel of the Slot1 does not contain the beam information of the data channel, acquiring the beam information of the data channel of the Slot2 through the receiving beam of the control channel of the Slot2, and receiving the data.
In order to make those skilled in the art better understand and implement the present invention, another timing relationship diagram of the data received by the ue is provided in the embodiment of the present invention, as shown in fig. 3.
Referring to fig. 3, the ue is scheduled discontinuously, and is scheduled in Slot0, slot1, slot2, slot4, and Slot5, respectively, and the preset first threshold is set to be 2, and the preset second threshold is set to be 2. By applying the above scheme, the user equipment obtains the beam information of the data channel as follows:
for the scheduled first time Slot (Slot 0), second time Slot (Slot 1), and third time Slot (Slot 2), the method step for the user equipment to acquire the beam information of the data channel refers to the method step for the user equipment to acquire the beam information of the data channel in the embodiment corresponding to fig. 2, and details are not repeated here.
For the fifth scheduled time Slot (Slot 4), if the control information carried by the control channel of Slot2 contains the beam information of the data channel, the beam information of the data channel of Slot4 is acquired through the beam information contained in the control information carried by the control channel of Slot2, and data reception is performed. And if the control information carried by the control channel of the Slot2 does not contain the beam information of the data channel, acquiring the beam information of the data channel of the Slot4 through the receiving beam of the control channel of the Slot4 to receive data.
For the scheduled sixth time Slot (Slot 5), if the control information carried by the control channel of Slot4 does not contain the beam information of the data channel, the beam information of the data channel of Slot5 is acquired through the receiving beam of the control channel of Slot5, and data reception is carried out; and if the control information carried by the control channel of the Slot4 comprises the beam information of the data channel, acquiring the beam information of the data channel of the Slot5 through the beam information contained in the control information carried by the control channel of the Slot4, and receiving data.
In order to make those skilled in the art better understand and implement the present invention, another embodiment of the present invention is directed to the schematic diagram of the timing relationship of receiving data by the user equipment shown in fig. 3, where the preset first threshold is set to be 2, the preset second threshold is set to be 2, and the user equipment is scheduled discontinuously and is scheduled in Slot0, slot1, slot2, and Slot5, respectively. By applying the above scheme, the user equipment obtains the beam information of the data channel as follows:
for the scheduled first time Slot (Slot 0), second time Slot (Slot 1) and third time Slot (Slot 2), the method step for the user equipment to acquire the beam information of the data channel refers to the method step for the user equipment to acquire the beam information of the data channel in the embodiment corresponding to fig. 2, and is not repeated here.
For the scheduled sixth Slot (Slot 5), beam information of the data channel of Slot5 is acquired through the receive beam of the control channel of Slot 5.
In order to make those skilled in the art better understand and implement the present invention, an embodiment of the present invention further provides a user equipment 40, including: an acquisition unit 41 and a first receiving unit 42, wherein:
the obtaining unit 41 is adapted to obtain the beam information of the data channel according to a preset rule by time-sharing the control information transmitted through the control channel or the beam information of the control channel.
The first receiving unit 42 is adapted to receive data for the corresponding data channel based on the acquired beam information of the data channel.
In an embodiment of the present invention, the obtaining unit 41 includes: a first acquisition subunit 411 and a second acquisition subunit 412, wherein:
the first obtaining subunit 411 is adapted to, for a scheduled data channel located in the same time slot/subframe/transmission time interval as the control channel, obtain beam information of the data channel through beam information of the control channel.
The second obtaining subunit 412 is adapted to, for a data channel scheduled after a time slot/subframe/transmission time interval in which a control channel is located, obtain beam information of the data channel through control information transmitted by a latest control channel before the time slot/subframe/transmission time interval in which the data channel is located, where the control information transmitted by the latest control channel includes the beam information of the data channel.
In a specific implementation, a difference between a slot/subframe/transmission time interval in which the last control channel is located and a slot/subframe/transmission time interval in which the data channel is located is less than or equal to a preset first threshold.
In an embodiment of the present invention, the user equipment 40 further includes: a second receiving unit 43, adapted to receive a preset first threshold configured by the base station through higher layer signaling, MAC information or control information of the control channel.
In an embodiment of the present invention, the first obtaining subunit 411 is further adapted to obtain the beam information of the data channel through the beam information of the control channel corresponding to the data channel when none of the control information transmitted by the control channel before the time slot/subframe/transmission time interval in which the data channel is located includes the beam information of the data channel, or when a difference between the time slot/subframe/transmission time interval in which the latest control channel is located and the time slot/subframe/transmission time interval in which the data channel is located is greater than a preset first threshold.
In an implementation, the user equipment 40 may be scheduled continuously or discontinuously.
In an embodiment of the present invention, when the ue 40 is scheduled discontinuously, a difference between a first timeslot/subframe/transmission time interval of a subsequent segment of data channel and a timeslot/subframe/transmission time interval of a previous segment of latest control channel is less than or equal to a preset second threshold, where control information transmitted by the previous segment of latest control channel includes beam information of the data channel.
In a specific implementation, the user equipment 40 further includes: a third receiving unit 44, adapted to receive a preset second threshold configured by the base station through higher layer signaling, MAC information or control information of the control channel.
The embodiment of the present invention further provides a computer readable medium, where a computer instruction is stored, and when the computer instruction runs, the steps corresponding to any one of the above methods are executed, which is not described in detail again.
The embodiment of the present invention further provides a user equipment, which includes a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and when the processor runs the computer instruction, the processor executes steps corresponding to any one of the above methods, which is not described in detail again.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.
Claims (16)
1. A method for a user equipment to acquire beam information, comprising:
according to a preset rule, acquiring beam information of a data channel by time-sharing control information transmitted through a control channel or beam information of the control channel, wherein the method comprises the following steps: for the data channel of the scheduled first time slot/subframe/transmission time interval, acquiring the beam information of the data channel through the beam information of the control channel; for a data channel outside a scheduled first time slot/sub-frame/transmission time interval, acquiring beam information of the data channel through control information transmitted by a latest control channel before the time slot/sub-frame/transmission time interval where the data channel is located, wherein the control information transmitted by the latest control channel comprises the beam information of the data channel;
and receiving data for the corresponding data channel based on the acquired beam information of the data channel.
2. The method of claim 1, wherein for a data channel other than a first scheduled time slot/subframe/tti, a difference between a time slot/subframe/tti where the last control channel is located and a time slot/subframe/tti where the data channel is located is smaller than or equal to a preset first threshold.
3. The method of claim 2, wherein the UE receives the predetermined first threshold through higher layer signaling, MAC information or control information of a control channel.
4. The method according to claim 2, wherein for a data channel other than a scheduled first timeslot/subframe/tti, when control information transmitted by a control channel before the timeslot/subframe/tti where the data channel is located does not include the beam information of the data channel, or when a difference between a scheduled timeslot/subframe/tti where the latest control channel is located and the timeslot/subframe/tti where the data channel is located is greater than a preset first threshold, the beam information of the data channel is obtained through the beam information of the control channel corresponding to the data channel.
5. The method of any of claims 1 to 4, wherein the UE is continuously scheduled or non-continuously scheduled.
6. The method according to claim 5, wherein when the ue is scheduled discontinuously, a difference between a first timeslot/subframe/transmission time interval of a subsequent segment of data channel and a timeslot/subframe/transmission time interval of a previous segment of latest control channel is less than or equal to a preset second threshold, wherein the control information transmitted by the previous segment of latest control channel includes beam information of the data channel.
7. The method of claim 6, wherein the UE receives the predetermined second threshold through higher layer signaling, MAC information or control information of a control channel.
8. A user device, comprising:
the acquisition unit is suitable for acquiring the beam information of the data channel through the control information transmitted by the control channel or the beam information of the control channel in a time-sharing manner according to a preset rule; the acquisition unit includes: a first obtaining subunit, adapted to obtain, for a data channel of a scheduled first slot/subframe/transmission time interval, beam information of the data channel through the beam information of the control channel; the second acquiring subunit is adapted to acquire, for a data channel other than the scheduled first time slot/subframe/transmission time interval, beam information of the data channel through control information transmitted by a latest control channel before the time slot/subframe/transmission time interval in which the data channel is located, where the control information transmitted by the latest control channel includes the beam information of the data channel;
and the first receiving unit is suitable for receiving data of the corresponding data channel based on the acquired beam information of the data channel.
9. The UE of claim 8, wherein for a data channel other than the scheduled first slot/subframe/TTI, a difference between a slot/subframe/TTI where the latest control channel is located and a slot/subframe/TTI where the data channel is located is less than or equal to a preset first threshold.
10. The user equipment of claim 9, further comprising: and the second receiving unit is suitable for receiving a preset first threshold configured by the base station through high-level signaling, MAC information or control information of a control channel.
11. The ue of claim 9, wherein the first obtaining subunit is further adapted to, for a data channel other than the scheduled first timeslot/subframe/tti, obtain the beam information of the data channel through the beam information of the control channel corresponding to the data channel when none of the control information transmitted by the control channel before the timeslot/subframe/tti where the data channel is located contains the beam information of the data channel, or when a difference between the timeslot/subframe/tti where the latest control channel is located and the timeslot/subframe/tti where the data channel is located is greater than a preset first threshold.
12. The user equipment according to any of claims 8 to 11, wherein the user equipment is continuously scheduled or non-continuously scheduled.
13. The UE of claim 12, wherein when the UE is scheduled discontinuously, a difference between a first timeslot/subframe/TTI of a subsequent segment of data channel and a timeslot/subframe/TTI of a previous segment of latest control channel is less than or equal to a preset second threshold, wherein the control information transmitted by the previous segment of latest control channel includes beam information of the data channel.
14. The user equipment of claim 13, further comprising: and the third receiving unit is suitable for receiving a preset second threshold configured by the base station through high-level signaling, MAC information or control information of a control channel.
15. A computer readable medium having stored thereon computer instructions, which when executed by a processor, perform the steps corresponding to the method of any one of claims 1 to 7.
16. A user device comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, the processor executing the computer instructions to perform steps corresponding to the method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710689639.9A CN109392153B (en) | 2017-08-11 | 2017-08-11 | User equipment, method for acquiring beam information thereof and computer readable medium |
Applications Claiming Priority (1)
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