CN112584472A

CN112584472A - Transmission point configuration method, user equipment, base station, electronic equipment and storage medium

Info

Publication number: CN112584472A
Application number: CN201910943916.3A
Authority: CN
Inventors: 孙韶辉; 赵铮; 王加庆; 杨美英; 罗晨
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-03-30
Anticipated expiration: 2039-09-30
Also published as: CN112584472B

Abstract

The embodiment of the invention provides a configuration method of a transmission point, user equipment, a base station, electronic equipment and a storage medium, wherein the method comprises the following steps: receiving an energy-saving PDCCH; and determining the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule. According to the method, the user equipment, the base station, the electronic equipment and the storage medium provided by the embodiment of the invention, the user equipment determines the switching information of the transmission point by receiving the energy-saving PDCCH issued by the base station and based on the energy-saving PDCCH and/or the preset switching rule, so that unnecessary detection and decoding of the PDCCH can be reduced, the number of antennas and the number of radio frequency channels which need to be started can also be reduced, and the power consumption of the user equipment is further saved.

Description

Transmission point configuration method, user equipment, base station, electronic equipment and storage medium

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a transmission point configuration method, a user equipment, a base station, an electronic device, and a storage medium.

Background

The nr (new radio) system configures a multi Transmission Point (TRP) for the ue according to the scene requirement. For downlink data, multiple transmission points transmit data to users at the same time or at different times, so that data transmission performance and transmission rate can be improved.

Under the condition of multiple transmission points, the opening and closing of the transmission points are changed through high-level signaling, the action time of the high-level signaling is long, and an NR system cannot dynamically open or close the transmission points. Even if the base station may transmit a PDCCH (Physical Downlink Control Channel) to the user equipment through one transmission point, the user equipment still needs to perform PDCCH blind detection on detection opportunities corresponding to multiple transmission points, and the user equipment needs to start an antenna and a radio frequency Channel according to multiple transmission points, which increases unnecessary power consumption.

Disclosure of Invention

Embodiments of the present invention provide a transmission point configuration method, a user equipment, a base station, an electronic device, and a storage medium, so as to solve a problem that an NR system cannot dynamically turn on or off a transmission point, which causes unnecessary power consumption of the user equipment.

In a first aspect, an embodiment of the present invention provides a method for configuring a transmission point, including:

receiving an energy-saving PDCCH;

and determining the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule.

Preferably, the determining the switching information of the transmission point based on the energy-saving PDCCH specifically includes:

extracting a transmission point switch field from the energy-saving PDCCH;

and determining the switching information of the transmission point corresponding to the transmission point switching field.

Preferably, the transmission point switch field indicates switch information of each transmission point except for a configured transmission point of the energy-saving PDCCH;

or, the transmission point switch field indicates that the switch information is an open transmission point, or the switch information is a closed transmission point;

or, the transmission point switch field indicates switch information of each of the transmission points.

extracting a CORESET switch configuration field from the energy-saving PDCCH;

and determining the switch information of the transmission point corresponding to the CORESET switch configuration field.

Preferably, the CORESET switch configuration field indicates a CORESET corresponding to a PDCCH that needs to be monitored or a CORESET corresponding to a PDCCH that does not need to be monitored;

or, the CORESET switch configuration field indicates whether the PDCCH corresponding to each CORESET needs to be monitored.

Preferably, the determining the switching information of the transmission point based on the preset switching rule specifically includes:

determining a configuration transmission point of the energy-saving PDCCH;

and determining the switch information of the transmission point in the DRX activation period based on the preset association relationship between the configuration transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period.

Preferably, the switch information indicates whether the transmission point determined by the user equipment transmits the PDCCH in the DRX active period corresponding to the energy-saving PDCCH.

In a second aspect, an embodiment of the present invention provides a method for configuring a transmission point, including:

and issuing an energy-saving PDCCH so that user equipment can determine the switching information of a transmission point based on the energy-saving PDCCH and/or a preset switching rule after receiving the energy-saving PDCCH.

Preferably, the issuing the energy-saving PDCCH further includes:

determining a transmission point switch field corresponding to the switch information of the transmission point;

generating the energy-saving PDCCH including the transmission point switch field.

Preferably, the issuing the energy-saving PDCCH further includes:

determining a CORESET switch configuration field corresponding to the switch information of the transmission point;

generating the energy-saving PDCCH comprising the CORESET switch configuration field.

Preferably, the issuing of the energy-saving PDCCH specifically includes:

determining a configuration transmission point of the energy-saving PDCCH based on the switch information of the transmission point in the DRX activation period and the preset incidence relation between the configuration transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period;

and issuing the energy-saving PDCCH based on the configured transmission point of the energy-saving PDCCH.

Preferably, the switch information is used to indicate whether the transmission point transmits the PDCCH in a DRX active period corresponding to the energy-saving PDCCH.

In a third aspect, an embodiment of the present invention provides a user equipment, including:

an energy-saving PDCCH receiving unit, configured to receive an energy-saving PDCCH;

and the transmission point switch determining unit is used for determining the switch information of the transmission point based on the energy-saving PDCCH and/or a preset switch rule.

In a fourth aspect, an embodiment of the present invention provides a base station, including:

and the energy-saving PDCCH issuing unit is used for issuing an energy-saving PDCCH so that the user equipment can determine the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule after receiving the energy-saving PDCCH.

In a fifth aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a bus, where the processor and the communication interface, the memory complete communication with each other through the bus, and the processor may call logic instructions in the memory to perform the steps of the method as provided in the first aspect or the second aspect.

In a sixth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the method as provided in the first or second aspect.

According to the transmission point configuration method, the user equipment, the base station, the electronic equipment and the storage medium provided by the embodiment of the invention, the user equipment determines the switching information of the transmission point by receiving the energy-saving PDCCH issued by the base station and based on the energy-saving PDCCH and/or the preset switching rule, so that unnecessary detection and decoding of the PDCCH can be reduced, the number of antennas and the number of radio frequency channels which need to be started can also be reduced, and the power consumption of the user equipment is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic flowchart of a transmission point configuration method according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a transmission point configuration method according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the NR system, a base station configures a CORESET (Control Resource SET) and a Search Space (Search Space) for each ue, and the ue can obtain a transmission point condition corresponding to the CORESET according to the CORESET parameter configured for the Search Space, thereby generating a corresponding beam for receiving. Because the incoming wave directions from different transmission points to the user equipment are different, the user equipment needs to generate different beam receiving signals, and the number of the started antennas and the number of the corresponding radio frequency links are more than or equal to the number of the generated beams. According to the 3rd Generation Partnership Project (3 GPP) organization, the power consumption of the ue increases significantly as the number of antennas is turned on. Therefore, more antennas and radio frequency links are required for the user equipment to receive signals transmitted by the respective TRPs, which also increases the power consumption of the user equipment.

When a plurality of transmission points exist, the CORESET corresponding to each transmission point is respectively configured. When the CORESET is different, the user equipment needs to perform blind detection on the PDCCH of the CORESET respectively, which increases the number of times of PDCCH blind detection, resulting in additional power consumption. In addition, the turn-on and turn-off of the transmission point are changed by high-layer signaling, the action time of the high-layer signaling is long, and the NR system cannot dynamically turn on or turn off the transmission point. Even if the base station can transmit the PDCCH to the user equipment through one transmission point, the user equipment still needs to perform PDCCH blind detection on detection opportunities corresponding to multiple transmission points, and the user equipment needs to start an antenna and a radio frequency channel according to the multiple transmission points, which increases unnecessary power consumption.

In view of the above, an embodiment of the present invention provides a transmission point configuration method. Fig. 1 is a flowchart illustrating a transmission point configuration method according to an embodiment of the present invention, where as shown in fig. 1, an execution subject of the method is a user equipment under an NR system, and it should be noted that, in the following embodiments, the user equipment, a terminal, and a user are the same concept. The method specifically comprises the following steps:

step 110, receiving an energy-saving PDCCH.

In the NR system, when the ue is in a connected state, it needs to detect PDCCH detection opportunities (PDCCH monitor interference) configured in all slots, but in most of the PDCCH detection opportunities, the base station does not transmit a PDCCH, and these PDCCH detections are not necessary. The user equipment needs to consume power for PDCCH detection, and unnecessary PDCCH detection consumes energy of the user equipment. The base station may inform the user equipment whether to perform PDCCH detection for a subsequent period of time. Therefore, in the NR system, the connected ue configures DRX (Discontinuous Reception), and PDCCH signaling for instructing the ue to sleep or wake up in each DRX cycle is referred to as a Power Saving PDCCH (PS PDCCH).

And step 120, determining the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule.

Specifically, the switch information of the transmission point is used to indicate the on or off of the transmission point, when the transmission point is on, in a DRX activation period (Active Time) corresponding to the energy-saving PDCCH, the PDCCH detection opportunity corresponding to the transmission point needs to be blind-checked, and when the transmission point is off, in the DRX activation period corresponding to the energy-saving PDCCH, the PDCCH detection opportunity corresponding to the transmission point does not need to be blind-checked.

In step 120, the switching information of the transmission point may be determined based on the energy-saving PDCCH:

the energy-saving PDCCH can carry information for directly indicating the switch of the transmission point, so that after receiving the energy-saving PDCCH, the user equipment can directly extract the information for indicating the switch of the transmission point from the energy-saving PDCCH, and further determine the switch information of the transmission point;

the energy-saving PDCCH may also carry information of a switch used for indirectly indicating the transmission point, so that after receiving the energy-saving PDCCH, the user equipment may extract information of the switch used for indirectly indicating the transmission point from the energy-saving PDCCH, and further derive the information of the switch of the transmission point, for example, the energy-saving PDCCH carries information of the switch indicating the CORESET, so that after receiving the energy-saving PDCCH, the user equipment may extract information of the switch used for indicating the CORESET from the energy-saving PDCCH, and further determine the information of the switch of the transmission point according to a corresponding relationship between the CORESET and the transmission point. Here, the switch information of the CORESET is used to indicate whether to detect the PDCCH on the CORESET.

In step 120, switching information of the transmission point may be determined based on a preset switching rule:

the energy-saving PDCCH may not carry information for indicating switching of the transmission point, and the user may determine the switching information of the transmission point according to the action of receiving the energy-saving PDCCH and a preset switching rule. Here, the preset switching rule may be predefined in a protocol or determined through a higher layer signaling, and the preset switching rule is used to indicate switching information of a transmission point after receiving the energy-saving PDCCH.

In step 120, the switching information of the transmission point may also be determined based on the energy-saving PDCCH and a preset switching rule: the switching information of the transmission point can be determined by combining the information carried in the energy-saving PDCCH and the preset switching rule.

According to the method provided by the embodiment of the invention, by receiving the energy-saving PDCCH and determining the switching information of the transmission point based on the energy-saving PDCCH and/or the preset switching rule, the unnecessary detection and decoding of the PDCCH can be reduced, the number of antennas and the number of radio frequency channels which need to be started can also be reduced, and thus the power consumption of user equipment is saved.

Based on the foregoing embodiment, in the method, step 120 specifically includes: extracting a transmission point switch field from the energy-saving PDCCH; and determining the switching information of the transmission point corresponding to the transmission point switching field.

Specifically, a transmission point switch field may be carried in the power saving PDCCH, where the transmission point switch field is used to indicate switching information of a transmission point. The user equipment may determine the switching information of the transmission point corresponding to the transmission point switching field according to the transmission point switching field in the energy-saving PDCCH and a pre-known correspondence between the transmission point switching field and the switching information of the transmission point. Here, the correspondence between the transmission point switch field and the switch information of the transmission point may be predefined in the protocol or may be determined through higher layer signaling.

Based on any of the above embodiments, in the method, the transmission point switch field indicates switch information of each transmission point except for a configured transmission point of the energy-saving PDCCH.

Specifically, when the scheduled PDCCH is received in the DRX active period indicated by the energy-saving PDCCH, the configured transmission point of the energy-saving PDCCH is normally in an on state. Here, the configured transmission point of the energy-saving PDCCH refers to a transmission point configured by the base station for transmitting the energy-saving PDCCH. It should be noted that, in the transmission process of the energy-saving PDCCH, the base station is configured to send a transmission point of the energy-saving PDCCH, and the user equipment detects the transmission point of the energy-saving PDCCH and configures one, multiple, or all of the transmission points for the energy-saving PDCCH.

Therefore, when the specific meaning of the transmission point switch field is set, on the basis that the configuration transmission point of the energy-saving PDCCH in each meaning of the transmission point switch field is opened, the switch information of other transmission points except the configuration transmission point of the energy-saving PDCCH can be represented. Table 1 is a table example of the transmission point switch field, and only one bit of the transmission point switch field is needed in table 1, so that the base station can dynamically notify the switch information of other transmission points of the user equipment as needed through the energy-saving PDCCH, thereby reducing the number of radio frequency channels detected and turned on by the PDCCH.

Table 1 table example of transmission point switch fields

Transmission point switch field	Switching information of transmission points
		0	Transmission points other than the configured transmission point of the energy-saving PDCCH are all turned off
1	All transmission points are turned on

Based on any of the above embodiments, in the method, the transmission point switch field indicates that the switch information is an on transmission point or an off transmission point.

Specifically, the transmission point switch field may indicate to turn on different transmission points by different bits, or to turn off different transmission points by different bits. By the method, the situation that the transmission points for transmitting the energy-saving PDCCH are not consistent in understanding by the transmitting side and the receiving side when the transmission points for transmitting the energy-saving PDCCH are changed can be avoided. For example, table 2 provides an example of turning on different transmission points by indicating bits of different transmission point switch fields.

Table 2 table example of transmission point switch field

Transmission point switch field	Switching information of transmission points
		00	When PDCCH detection is carried out, only the transmission point 1 is started
01	When PDCCH detection is carried out, only transmission point 2 is started
		10	Retention
11	When PDCCH detection is carried out, transmission point 1 and transmission point 2 are both opened

According to any of the above embodiments, in the method, the transmission point switch field is used to indicate the switch information of each transmission point.

Specifically, the transmission switch field may directly include the switch information of each transmission point, and assuming that there are n transmission points in total, the transmission switch field is an n-bit field, and the ith bit in the transmission switch field is used to represent the switch information of the ith transmission point in the n transmission points. Here, n and i are both positive integers, and n is equal to or greater than i. Table 3 provides an example of indicating corresponding transmission point switch information by a bit of the transmission point switch field.

Table 3 table example of transmission point switch field

Bit i of the transmission point switch field	Switching information of transmission point i
		0	Close off
1	Is opened

Based on any of the above embodiments, in the method, step 120 specifically includes: step 121, extracting a CORESET switch configuration field from the energy-saving PDCCH; and step 122, determining the switch information of the transmission point corresponding to the CORESET switch configuration field.

Specifically, the energy-saving PDCCH may carry a CORESET switch configuration field, where the CORESET switch configuration field is used to indicate whether the PDCCH corresponding to the CORESET needs to be monitored.

The user equipment can determine the switch information of the transmission point corresponding to the CORESET switch configuration field according to the CORESET switch configuration field in the energy-saving PDCCH and the corresponding relation between the CORESET and the transmission point which is known in advance. On the user equipment side, the correspondence between the CORESET and the transmission point is determined by the configuration information of the CORESET.

Further, in step 122, if the PDCCH of the CORESET corresponding to the CORESET switch configuration field needs to be monitored, it is determined that the switch information of the transmission point corresponding to the CORESET is on; and if the PDCCH of the CORESET corresponding to the CORESET switch configuration field does not need monitoring, determining that the switch information of the transmission point corresponding to the CORESET is closed.

Based on any of the above embodiments, in the method, the CORESET switch configuration field is used to indicate the CORESET corresponding to the PDCCH that needs to be monitored, or the CORESET corresponding to the PDCCH that does not need to be monitored.

Specifically, the CORESET switch configuration field may indicate CORESETs corresponding to different PDCCHs needing monitoring through different bits, or indicate CORESETs corresponding to different PDCCHs not needing monitoring through different bits. Currently, when a user equipment supports multiple transmission points, each user equipment may be configured with 5 CORESET. Table 4 provides an example of indicating the CORESET corresponding to different PDCCHs that need to be monitored by bits of different CORESET switch configuration fields.

Table 4 table example of CORESET switch configuration field

CORESET switch configuration	Switch information of CORESET
		0	PDCCH corresponding to CORESET 1,2 and 3 needs to be monitored
1	PDCCH corresponding to CORESET 4 and CORESET 5 does not need to be monitored

Based on any of the above embodiments, in the method, the CORESET switch configuration field is used to indicate whether the PDCCH corresponding to each CORESET needs to be monitored.

Specifically, the CORESET switch configuration field may directly include whether the PDCCH corresponding to each CORESET needs to be monitored, and if m CORESETs are provided, the CORESET switch configuration field is an m-bit field, and a jth bit in the CORESET switch configuration field is used to indicate whether the PDCCHs corresponding to the m CORESETs need to be monitored. Here, m and j are both positive integers, and m is equal to or greater than j. Table 5 provides an example of whether the PDCCH corresponding to the CORESET needs monitoring or not by a bit of the CORESET switch configuration field.

Table 5 table example of CORESET switch configuration field

Bit j of the CORESET switch configuration field	Switch of CORESET jInformation
		0	PDCCH corresponding to CORESET j needs to be monitored
1	PDCCH corresponding to CORESET j does not need to be monitored

Based on any of the above embodiments, in the method, step 120 specifically includes: determining a configuration transmission point of an energy-saving PDCCH; and determining the switching information of the transmission point in the DRX activation period based on the preset association relationship between the configuration transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period.

Specifically, the preset switching rule may include an association relationship between a configured transmission point of the energy-saving PDCCH and a transmission point in a DRX activation period, where the transmission point in the DRX activation period is a transmission point in the DRX activation period corresponding to the energy-saving PDCCH, and the association relationship is predetermined, may be predefined in a protocol, and may also be determined through a higher layer signaling. After receiving the energy-saving PDCCH, the user terminal may determine, according to the configured transmission point configured by the base station for transmitting the energy-saving PDCCH and the association relationship, switching information of a transmission point in the DRX activation period corresponding to the configured transmission point of the energy-saving PDCCH. For example, table 6 provides an example of an association of configured transmission points of the energy saving PDCCH with transmission points in the DRX activation period.

Table 6 table example of association relationship of transmission points

Configured transmission point sequence number of energy-saving PDCCH	Transmission point sequence number in DRX active period
		1	1,2
2	2

Based on the association shown in table 6, if the configured transmission point of the energy-saving PDCCH is transmission point 1, transmission point 1 and transmission point 2 are turned on in the DRX active period, and if the configured transmission point of the energy-saving PDCCH is transmission point 2, transmission point 2 is turned on in the DRX active period.

Further, in the association relationship between the configured transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period, the transmission point in the DRX activation period corresponding to the configured transmission point i of the energy-saving PDCCH also includes the transmission point i.

Specifically, it may be set in a preset switching rule, and once the energy-saving PDCCH is received, it is directly determined that all configuration transmission points of the energy-saving PDCCH are turned on in the DRX activation period, that is, after the energy-saving PDCCH is received, the configuration transmission points of the energy-saving PDCCH are determined according to configuration information issued by a base station, and switching information of the configuration transmission points of the energy-saving PDCCH is determined to be turned on.

According to the method provided by the embodiment of the invention, the transmission point is switched on and off by adopting an implicit method through the incidence relation between the configuration transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period, so that the control signaling overhead for indicating the switching of the transmission point is saved.

Based on any embodiment, the switch information indicates whether the transmission point determined by the user equipment transmits the PDCCH in the DRX active period corresponding to the energy-saving PDCCH.

Specifically, the step 120 is performed only when it is determined that the user needs to wake up after receiving the energy-saving PDCCH, so as to determine the transmission point switching information. If the received energy-saving PDCCH indicates sleep, the corresponding DRX active period does not perform PDCCH detection, and step 120 does not need to be performed to determine the switching information of the transmission point.

In addition, for any transmission point, if the switch information is on, the transmission point transmits the PDCCH to the user in the DRX active period corresponding to the energy-saving PDCCH, and PDCCH detection needs to be performed for the transmission point, and if the switch information is off, the transmission point does not transmit the PDCCH in the DRX active period corresponding to the energy-saving PDCCH, and does not need to perform PDCCH detection for the transmission point, and does not need to turn on a radio frequency channel for the transmission point.

Based on any of the above embodiments, fig. 2 is a schematic flow chart of a transmission point configuration method according to another embodiment of the present invention, as shown in fig. 2, an execution subject of the method is a base station under an NR system, and the method includes:

step 210, generating an energy-saving PDCCH;

step 220, issuing the energy-saving PDCCH for the user equipment to determine the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule after receiving the energy-saving PDCCH.

Specifically, in the NR system, the base station indicates the user equipment to transmit the switching information of the point in the DRX active period corresponding to the energy-saving PDCCH by generating and issuing the energy-saving PDCCH.

After the base station sends the energy-saving PDCCH, the user equipment receives the energy-saving PDCCH. After receiving the energy-saving PDCCH, the user equipment determines the switching information of the transmission point based on the information carried in the energy-saving PDCCH, or based on a preset switching rule, or based on the information carried in the energy-saving PDCCH and the preset switching rule. Here, the preset switching rule may be predefined in a protocol or determined through a high layer signaling, and the preset switching rule may be used to indicate switching information of a corresponding transmission point after receiving the energy saving PDCCH.

For example, the base station may carry information directly or indirectly indicating the switching of the transmission point in the energy-saving PDCCH, so that the user equipment determines the switching information of the transmission point based on the energy-saving PDCCH; the base station can also issue the energy-saving PDCCH through a preset transmission point for energy-saving PDCCH transmission, so that after the user equipment receives the energy-saving PDCCH, the switching information of the transmission point can be determined according to the action of receiving the energy-saving PDCCH and a preset switching rule; the base station can also carry information for directly or indirectly indicating the switching of the transmission point in the energy-saving PDCCH, and sends the energy-saving PDCCH through the preset transmission point for the transmission of the energy-saving PDCCH, so that the user equipment can determine the switching information of the transmission point by combining the energy-saving PDCCH and a preset switching rule.

According to the method provided by the embodiment of the invention, the base station sends the energy-saving PDCCH to indicate the switching information of the transmission point to the user equipment, so that unnecessary detection and decoding of the PDCCH can be reduced, the number of antennas and the number of radio frequency channels which need to be started can be reduced, and the power consumption of the user equipment is saved.

Based on any of the above embodiments, in the method, step 210 specifically includes: determining a transmission point switch field corresponding to the switch information of the transmission point; an energy-saving PDCCH including a transmission point switch field is generated.

Specifically, a transmission point switch field may be carried in the power saving PDCCH, where the transmission point switch field is used to indicate switching information of a transmission point.

The base station may determine the transmission point switching field corresponding to the switching information of the transmission point according to the switching information of the transmission point and a pre-known correspondence between the transmission point switching field and the switching information of the transmission point. Here, the correspondence between the transmission point switch field and the switch information of the transmission point may be predefined in the protocol or may be determined through higher layer signaling.

Specifically, the transmission point switch field may indicate to turn on different transmission points by different bits, or to turn off different transmission points by different bits. By the method, the situation that the transmission points for transmitting the energy-saving PDCCH are not consistent in understanding by the transmitting side and the receiving side when the transmission points for transmitting the energy-saving PDCCH are changed can be avoided.

Specifically, the transmission switch field may directly include the switch information of each transmission point, and assuming that there are n transmission points in total, the transmission switch field is an n-bit field, and the ith bit in the transmission switch field is used to represent the switch information of the ith transmission point in the n transmission points. Here, n and i are both positive integers, and n is equal to or greater than i.

Based on any of the above embodiments, in the method, step 210 specifically includes: step 211, determining a CORESET switch configuration field corresponding to the switch information of the transmission point; step 212, an energy-saving PDCCH including a CORESET switch configuration field is generated.

The base station may determine a CORESET switch configuration field corresponding to the switch information of the transmission point according to the switch information of the transmission point and a pre-known correspondence between the CORESET and the transmission point.

Further, in step 211, if the PDCCH of the CORESET corresponding to the CORESET switch configuration field needs to be monitored, and if the switch information of the transmission point corresponding to the CORESET is on, it is determined that the PDCCH of the CORESET needs to be monitored; and if the switch information of the transmission point corresponding to the CORESET is closed, determining that the PDCCH of the CORESET does not need to be monitored, and determining a CORESET switch configuration field according to whether the PDCCH corresponding to the CORESET needs to be monitored.

Specifically, the CORESET switch configuration field may indicate CORESETs corresponding to different PDCCHs needing monitoring through different bits, or indicate CORESETs corresponding to different PDCCHs not needing monitoring through different bits. Based on any of the above embodiments, in the method, the CORESET switch configuration field is used to indicate whether the PDCCH corresponding to each CORESET needs to be monitored.

Specifically, the CORESET switch configuration field may directly include whether the PDCCH corresponding to each CORESET needs to be monitored, and if m CORESETs are provided, the CORESET switch configuration field is an m-bit field, and a jth bit in the CORESET switch configuration field is used to indicate whether the PDCCHs corresponding to the m CORESETs need to be monitored. Here, m and j are both positive integers, and m is equal to or greater than j.

Based on any of the above embodiments, in the method, step 220 specifically includes: determining a configuration transmission point of an energy-saving PDCCH based on switching information of a transmission point in a DRX activation period and a preset incidence relation between the configuration transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period; and issuing the energy-saving PDCCH based on the configured transmission point of the energy-saving PDCCH.

Specifically, the preset switching rule may include an association relationship between a configured transmission point of the energy-saving PDCCH and a transmission point in a DRX activation period, where the transmission point in the DRX activation period is a transmission point in the DRX activation period corresponding to the energy-saving PDCCH, and the association relationship is predetermined, may be predefined in a protocol, and may also be determined through a higher layer signaling.

After determining the switch information of each transmission point in the DRX activation period, the base station may determine, according to the association relationship, a configuration transmission point of the energy-saving PDCCH corresponding to the transmission point where the switch information in the DRX activation period is turned on, and issue the energy-saving PDCCH based on the determined configuration transmission point where the energy-saving PDCCH is transmitted, so that the user terminal may determine, after receiving the energy-saving PDCCH, that the switch information of the transmission point in the DRX activation period corresponding to the configuration transmission point of the energy-saving PDCCH is turned on according to the configuration transmission point of the energy-saving PDCCH and the association relationship.

According to the method provided by the embodiment of the invention, the transmission point is switched on and off by adopting an implicit method through the incidence relation between the transmission point for transmitting the energy-saving PDCCH and the transmission point in the DRX activation period, so that the control signaling overhead for indicating the switching of the transmission point is saved.

According to any of the above embodiments, in the method, the switch information is used to indicate whether the transmission point transmits the PDCCH in the DRX active period corresponding to the energy-saving PDCCH.

Specifically, when the user equipment determines that the user needs to wake up based on the energy-saving PDCCH only when the base station issues the PDCCH for energy saving, the user equipment can be triggered to determine the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule. If the energy-saving PDCCH issued by the base station side indicates sleep, the user equipment does not perform PDCCH detection in the corresponding DRX activation period, and the switching information of the transmission point does not need to be determined.

In addition, for any transmission point, if the switch information is on, the transmission point transmits the PDCCH to the user in the DRX activation period corresponding to the energy-saving PDCCH, and PDCCH detection needs to be performed for the transmission point, and if the switch information is off, the transmission point does not transmit the PDCCH in the DRX activation period corresponding to the energy-saving PDCCH, and does not need to perform PDCCH detection for the transmission point, and does not need to turn on a radio frequency channel for the transmission point.

Based on any of the above embodiments, a method for configuring a transmission point includes:

the base station issues configuration information of CORESET and search space to the user equipment, and the user equipment receives the configuration information and carries out related configuration.

And the base station transmits the energy-saving PDCCH carrying the transmission point switch field to the user equipment. After receiving the energy-saving PDCCH, the user equipment extracts a transmission point switch field from the energy-saving PDCCH, determines the switch information of a transmission point corresponding to the transmission point switch field based on the meaning corresponding to the transmission point switch field predefined by a protocol or a high-level signaling, and determines whether the correspondingly configured PDCCH detection opportunity needs blind detection or not based on the switch information of the transmission point in the subsequent DRX activation period.

and the base station transmits the energy-saving PDCCH carrying the CORESET switch configuration field to the user equipment. After receiving the energy-saving PDCCH, the user equipment extracts a CORESET switch configuration field from the energy-saving PDCCH, and determines whether the PDCCH corresponding to the CORESET indicated by the CORESET switch configuration field needs to be monitored or not based on the meaning corresponding to the CORESET switch configuration field predefined by a protocol or a high-level signaling.

If the PDCCH corresponding to the CORESET needs to be monitored, the user equipment determines that the switch information of the transmission point corresponding to the CORESET is on; and if the PDCCH corresponding to the CORESET does not need monitoring, the user equipment determines that the switch information of the transmission point corresponding to the CORESET is closed. Here, the correspondence relationship between the CORESET and the transmission point is determined by the user equipment based on the configuration information of the CORESET.

After the switching information of the transmission point is determined, the user equipment determines whether the correspondingly configured PDCCH detection opportunity needs blind detection or not in the subsequent DRX activation cycle based on the switching information of the transmission point.

and the base station issues the energy-saving PDCCH based on each preset transmission point for transmitting the energy-saving PDCCH. After receiving the energy-saving PDCCH, the user equipment determines that the switch information of the configuration transmission point of each energy-saving PDCCH is preset to be on. Here, the configured transmission point of the energy-saving PDCCH is configured by the base station.

after determining the switch information of each transmission point in the DRX activation period, the base station may determine the configuration transmission point of the energy-saving PDCCH corresponding to the transmission point for which the switch information is turned on in the DRX activation period according to the preset association relationship between the configuration transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period, and issue the energy-saving PDCCH based on the determined configuration transmission point of the energy-saving PDCCH.

After receiving the energy-saving PDCCH, the user terminal may determine, according to the configured transmission point of the energy-saving PDCCH and the association relationship, that the switching information of the transmission point in the DRX activation period corresponding to the configured transmission point of the energy-saving PDCCH is on. Here, the association relationship between the base station and the user equipment is predetermined, may be predefined in a protocol, or may be determined through higher layer signaling.

Based on any of the above embodiments, fig. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention, and as shown in fig. 3, the user equipment includes an energy-saving PDCCH receiving unit 310 and a transmission point switch determining unit 320;

wherein, the energy-saving PDCCH receiving unit 310 is configured to receive an energy-saving PDCCH;

the transmission point switch determining unit 320 is configured to determine switch information of a transmission point based on the energy-saving PDCCH and/or a preset switching rule.

The user equipment provided by the embodiment of the invention can reduce unnecessary detection and decoding of the PDCCH by receiving the energy-saving PDCCH and determining the switching information of the transmission point based on the energy-saving PDCCH and/or the preset switching rule, and can also reduce the number of antennas and the number of radio frequency channels which need to be started, thereby saving the power consumption of the user equipment.

Based on any of the above embodiments, in the user equipment, the transmission point switch determining unit 320 is specifically configured to:

extracting a transmission point switch field from the energy-saving PDCCH;

According to any of the above embodiments, in the user equipment,

the transmission point switch field indicates switch information of each transmission point except for a configured transmission point of the energy-saving PDCCH;

extracting a CORESET switch configuration field from the energy-saving PDCCH;

According to any of the above embodiments, in the user equipment,

the CORESET switch configuration field indicates the CORESET corresponding to the PDCCH needing monitoring or the CORESET corresponding to the PDCCH needing no monitoring;

determining a configuration transmission point of the energy-saving PDCCH;

Based on any of the above embodiments, in the ue, the switch information indicates whether the transmission point determined by the ue transmits the PDCCH in the DRX active period corresponding to the energy-saving PDCCH.

Based on any of the above embodiments, fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention, and as shown in fig. 4, the base station includes an energy-saving PDCCH generating unit 410 and an energy-saving PDCCH issuing unit 420;

wherein, the energy-saving PDCCH generating unit 410 is configured to generate an energy-saving PDCCH;

the energy-saving PDCCH issuing unit 420 is configured to issue the energy-saving PDCCH, so that after receiving the energy-saving PDCCH, the user equipment determines switching information of a transmission point based on the energy-saving PDCCH and/or a preset switching rule.

The base station provided by the embodiment of the invention can reduce unnecessary detection and decoding of the PDCCH by issuing the switching information of the energy-saving PDCCH for indicating the transmission point to the user equipment, and can also reduce the number of antennas and the number of radio frequency channels which need to be started, thereby saving the power consumption of the user equipment.

Based on any of the embodiments above, in the base station, the energy-saving PDCCH generating unit 410 is specifically configured to:

In any of the above embodiments, in the base station,

Based on any of the above embodiments, in the base station, the energy-saving PDCCH issuing unit 420 is specifically configured to:

Based on any of the above embodiments, in the base station, the switch information is used to indicate whether the transmission point transmits the PDCCH in the DRX active period corresponding to the energy-saving PDCCH.

Fig. 5 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 5, the electronic device may include: a processor (processor)501, a communication Interface (Communications Interface)502, a memory (memory)503, and a communication bus 504, wherein the processor 501, the communication Interface 502, and the memory 503 are configured to communicate with each other via the communication bus 504. The processor 501 may call a computer program stored on the memory 503 and executable on the processor 501 to execute the transmission point configuration method provided by the above embodiments, for example, including: receiving an energy-saving PDCCH; and determining the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule.

The processor 501 may also call a computer program stored on the memory 503 and executable on the processor 501 to execute the transmission point configuration method provided by the above embodiments, for example, including: and issuing an energy-saving PDCCH so that user equipment can determine the switching information of a transmission point based on the energy-saving PDCCH and/or a preset switching rule after receiving the energy-saving PDCCH.

In addition, the logic instructions in the memory 503 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the transmission point configuration method provided in the foregoing embodiments when executed by a processor, for example, the method includes: receiving an energy-saving PDCCH; and determining the switching information of the transmission point based on the energy-saving PDCCH and/or a preset switching rule.

An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the transmission point configuration method provided in the foregoing embodiments when executed by a processor, for example, the method includes: and issuing an energy-saving PDCCH so that user equipment can determine the switching information of a transmission point based on the energy-saving PDCCH and/or a preset switching rule after receiving the energy-saving PDCCH.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for configuring a transmission point, comprising:

receiving an energy-saving PDCCH;

2. The method according to claim 1, wherein the determining the switching information of the transmission point based on the energy-saving PDCCH specifically includes:

extracting a transmission point switch field from the energy-saving PDCCH;

3. The transmission point configuring method according to claim 2,

or, the transmission point switching field indicates switching information of each transmission point.

4. The method according to claim 1, wherein the determining the switching information of the transmission point based on the energy-saving PDCCH specifically includes:

extracting a CORESET switch configuration field from the energy-saving PDCCH;

5. The transmission point configuring method according to claim 4,

6. The method according to claim 1, wherein the determining the switching information of the transmission point based on the preset switching rule specifically includes:

determining a configuration transmission point of the energy-saving PDCCH;

and determining switch information of a transmission point in a DRX activation period based on a preset association relation between the configured transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period.

7. The transmission point configuration method according to any one of claims 1 to 6, wherein the switch information indicates whether the transmission point determined by the UE transmits the PDCCH in a DRX active period corresponding to the energy-saving PDCCH.

8. A method for configuring a transmission point, comprising:

9. The method according to claim 8, wherein the issuing the energy-saving PDCCH further comprises:

10. The transmission point configuring method according to claim 9,

11. The method according to claim 8, wherein the issuing the energy-saving PDCCH further comprises:

12. The transmission point configuring method according to claim 11,

13. The method for configuring a transmission point according to claim 8, wherein the issuing the energy-saving PDCCH specifically includes:

determining a configuration transmission point of the energy-saving PDCCH based on switching information of a transmission point in a DRX activation period and a preset incidence relation between the configuration transmission point of the energy-saving PDCCH and the transmission point in the DRX activation period;

14. The transmission point configuration method according to any one of claims 8 to 13, wherein the switch information indicates whether the transmission point transmits the PDCCH in a DRX active period corresponding to the energy-saving PDCCH.

15. A user device, comprising:

16. A base station, comprising:

17. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the transmission point configuration method according to any of claims 1 to 14 are implemented by the processor when executing the program.

18. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the transmission point configuring method according to any one of claims 1 to 14.