CN109803368B - Power headroom report sending method and equipment - Google Patents

Abstract

The embodiments of the present application disclose a method and device for sending a power headroom report, which relate to the field of communications, and solve the problem that the network side cannot accurately allocate uplink resources to terminal equipment due to the inability to obtain an accurate PH reference, and the accuracy of resource scheduling on the network side is solved. greatly reduce the problem. The specific scheme is: the terminal equipment receives the uplink carrier configuration from the access network equipment, the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell, and when the uplink carrier configuration changes, the PHR is triggered; The configuration information of the access network equipment, according to the configuration information, the PHR is sent to the access network equipment; the PHR includes: the PH of at least two uplink carriers in at least one cell; or, the PHR includes: the PH of one uplink carrier in at least one cell and first indication information, where the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported.

Description

Method and device for sending power headroom report

technical field

The embodiments of the present application relate to the field of communications, and in particular, to a method and device for sending a power headroom report.

Background technique

In the existing communication system, the uplink resources required by the terminal device to send the uplink data are allocated by the network side. When allocating uplink resources to the terminal equipment on the network side, it is necessary to refer to the power headroom (Power Headroom, PH) of the terminal equipment. Wherein, PH is equal to the difference between the maximum transmit power of the terminal equipment and the estimated transmit power used for the current transmission of the Physical Uplink Shared Channel (PUSCH), which is calculated by the terminal equipment and carried in the power It is reported to the network side in the Power Headroom Report (PHR). The PHR is used to provide the network side with the difference between the transmit power and the maximum transmit power used to transmit the uplink synchronization channel (Uplink-SyncChannel, UL-SCH) or the sounding reference signal (Sounding Reference Signals, SRS) on the serving cell activated by the terminal device The difference, or, is used to provide the network side with the primary cell (the primary cell in the primary cell group or the primary cell in the secondary cell group) activated by the terminal device and/or is configured with a physical uplink control channel (Physical Uplink Control Channel, The difference between the transmit power used to transmit UL-SCH and PUCCH on the serving cell of PUCCH and the maximum transmit power.

In the existing standard protocol, the trigger condition for terminal equipment to report PHR and the format of PHR reported in different scenarios (eg, Dual Connection (DC), Carrier Aggregation (CA)) are specified. However, the trigger conditions and formats specified in the existing standard protocols are aimed at the case where each cell (Cell) is configured with only one uplink carrier. In the case where each cell is configured with multiple (two or more) uplink carriers, if the terminal equipment still reports the PHR according to the trigger conditions and format specified in the existing standard protocol, the network side will be unable to obtain the PHR due to the Accurate PH reference makes it impossible to accurately allocate uplink resources to terminal equipment, thereby greatly reducing the accuracy of resource scheduling on the network side.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method and device for sending a power headroom report, which solves the problem that the network side cannot accurately allocate uplink resources to terminal equipment because an accurate PH reference cannot be obtained, and the accuracy of resource scheduling on the network side is greatly reduced.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

A first aspect of the embodiments of the present application provides a method for sending a power headroom report, including:

The terminal device receives the uplink carrier configuration from the access network device, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell; when the uplink carrier configuration changes, the terminal device triggers the PHR.

In the method for sending a power headroom report provided by this embodiment of the present application, a terminal device receives an uplink carrier configuration from an access network device, and the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell. When the uplink carrier configuration occurs When it changes, the terminal device triggers the PHR. In this way, by designing the trigger conditions that meet the SUL technology, the access network device can obtain an accurate PH reference, so that the network side can accurately allocate uplink resources to the terminal device, which improves the network side resources. Scheduling accuracy.

With reference to the first aspect, in a possible implementation manner, the change of the uplink carrier configuration may include: the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device and the uplink data sent by the terminal device last time. The uplink carriers corresponding to the adopted resources are different; or, the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device is different from the uplink carrier corresponding to the resource indicated by the uplink scheduling information last received by the terminal device. In this way, the PHR is triggered at the same time when the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling is different from the uplink carrier corresponding to the resource indicated by the last data transmission or the last uplink scheduling, so that the access network device can obtain an accurate PH refer to.

With reference to the first aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes: the PH of the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling information. In this way, when the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling is different from the uplink carrier corresponding to the resource indicated by the last data transmission or the last uplink scheduling, the currently received uplink carrier is sent to the access network device by sending the The PH of the uplink carrier corresponding to the resource indicated by the scheduling information enables the access network device to obtain an accurate PH reference.

In combination with the first aspect or the above possible implementation manner, in another possible implementation manner, the change in the uplink carrier configuration may include: the uplink carrier corresponding to the resource configured with the physical uplink control channel is replaced by the first uplink carrier. Change to the second uplink carrier. In this way, by triggering the PHR when the uplink carrier corresponding to the resource configured with the physical uplink control channel changes, the access network device can obtain an accurate PH reference.

With reference to the first aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes: a PH of the second uplink carrier under type 2. In this way, when the uplink carrier corresponding to the resource configured with the physical uplink control channel changes, the PH including the second uplink carrier is sent, so that the access network device can obtain an accurate PH reference in time.

With reference to the first aspect or the above possible implementation manner, in another possible implementation manner, the change in the uplink carrier configuration may include: in a carrier aggregation scenario: an uplink carrier is added to the primary cell in the primary cell group , or, the configuration of the uplink carrier configured on the primary cell in the primary cell group changes; or, in a dual-connectivity scenario: an uplink carrier is added to the primary cell in the primary cell group, or, the The configuration of the uplink carrier configured on the primary cell in the primary cell group changes, or an uplink carrier is added to the primary cell in the secondary cell group, or the uplink carrier configured on the primary cell in the secondary cell group is configuration has changed. In this way, when the uplink carrier configuration of the primary cell in the primary cell group and/or the primary cell in the secondary cell group changes, the PHR is triggered, so that the access network device can obtain an accurate PH reference.

With reference to the first aspect or the above possible implementation manner, in another possible implementation manner, the resources of the physical uplink shared channel are configured on the added uplink carrier; or, the added uplink carrier is only configured with sounding reference signals SRS resources. In this way, by triggering the PHR when the added uplink carrier is configured with the physical uplink shared channel resource or only configured with the SRS resource, so that the access network device can obtain an accurate PH reference.

In combination with the first aspect or the above possible implementation manner, in another possible implementation manner, when the added uplink carrier is configured with physical uplink shared channel resources, the PHR includes: the added uplink carrier is in the type of PH under Type 1; or, when only SRS resources are configured on the added uplink carrier, the PHR includes: the PH of the added uplink carrier under Type 3. In this way, when the uplink carrier configuration of the primary cell in the primary cell group and/or the primary cell in the secondary cell group changes, by reporting the PH of the increased uplink carrier, the access network device can obtain an accurate PH reference in time.

In combination with the first aspect or the above possible implementation manner, in another possible implementation manner, the configuration change of the uplink carrier further includes at least one of the following: an uplink carrier corresponding to a resource configured with a physical uplink shared channel Only the uplink carrier corresponding to the resource configured with SRS is reconfigured as the uplink carrier corresponding to the resource configured with the SRS, and the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured as the uplink carrier corresponding to the physical uplink shared channel. In this way, by triggering the PHR in time when the configuration of the uplink carrier changes, the access network device can obtain an accurate PH reference in time.

In combination with the first aspect or the above possible implementation manner, in another possible implementation manner, when the configuration of the uplink carrier changes, it includes: the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured to only be configured with When the uplink carrier corresponding to the resource of the SRS, the PHR includes: the PH of the uplink carrier whose configuration has changed under Type 3; or, when the configuration of the uplink carrier changes, including: only the uplink carrier corresponding to the SRS resource is configured When the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured, the PHR includes: the PH of the uplink carrier whose configuration has changed under type 1. In this way, when the configuration of the uplink carrier changes, the PH of the uplink carrier whose configuration has changed is reported, so that the access network device can obtain an accurate PH reference in time.

In a second aspect of the embodiments of the present application, a method for sending a power headroom report is provided, including:

The terminal device receives configuration information from the access network device; the terminal device sends a PHR to the access network device according to the configuration information; wherein the PHR includes: PHs of at least two uplink carriers in at least one cell; or, the PHR includes: PH and first indication information of an uplink carrier in at least one cell; or, the PHR includes: the PH of an uplink carrier in at least one cell, and the medium access control MAC protocol data unit PDU sent by the terminal device includes the first One indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported.

In the method for sending a power headroom report provided by this embodiment of the present application, a terminal device receives configuration information from an access network device, and sends a PHR to the access network device according to the configuration information; wherein the PHR includes: at least two of the at least one cell PH of one uplink carrier; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: the PH of one uplink carrier in at least one cell, and the terminal device receives the PH of one uplink carrier in at least one cell The MAC PDU includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported, so that by reporting the PH of at least two uplink carriers in at least one cell, or at least one The PH and indication information of an uplink carrier in the cell enable the network side to obtain an accurate PH reference, so that the network side can accurately allocate uplink resources to the terminal equipment and improve the accuracy of resource scheduling on the network side.

With reference to the second aspect, in a possible implementation manner, the terminal device sending the PHR to the access network device according to the configuration information may include: when the trigger condition is satisfied, the terminal device sending the PHR to the access network device according to the configuration information .

With reference to the second aspect or the above possible implementation manner, in another possible implementation manner, when the PHR includes the PHs of at least two uplink carriers in at least one cell, the PHR may further include: second indication information, The second indication information is used to indicate that PHs of at least two uplink carriers in at least one cell are reported. In this way, by adding indication information to indicate whether the PHR reports the PHs of at least two uplink carriers in at least one cell, flexible configuration and reporting of the content of the PHR is realized.

With reference to the second aspect or the above possible implementation manner, in another possible implementation manner, the PHR including the PHs of at least two uplink carriers in at least one cell includes: the PHR includes: the first in the at least one cell The PH of one uplink carrier and the PH of at least one second uplink carrier; or, the PHR includes: the PH of the third uplink carrier and the PH of at least one fourth uplink carrier in at least one cell, the PH of the third uplink carrier is the PH calculated based on the actual transmission, and the PH of the fourth uplink carrier is the PH calculated based on the reference format; or, the PHR includes: the PH of the uplink carrier of the first priority in at least one cell and the PH of at least one second priority uplink carrier The PH of the upstream carrier of the highest level, the first priority is greater than the second priority. In this way, by reporting the PHs of at least two uplink carriers of the same cell, the network side can accurately allocate uplink resources to the terminal equipment, which improves the accuracy of resource scheduling on the network side.

With reference to the second aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes the PH of one uplink carrier in at least one cell, and the first indication information includes: the PH of the one uplink carrier is the PH of the first uplink carrier, or the PH of the third uplink carrier.

With reference to the second aspect or the above possible implementation manner, in another possible implementation manner, when the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information, the first indication information is included in the In the MAC control unit CE of the PHR.

With reference to the second aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes: uplink carrier configuration, where the uplink carrier configuration is used to indicate at least two uplink carriers in at least one cell. configuration.

With reference to the second aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes third indication information; wherein the third indication information is used to indicate whether the terminal equipment reports at least one cell PH of at least two uplink carriers in the PH; or, the third indication information is used to indicate the format of the PHR, when the format of the PHR is the first format, the PHR includes the PH of at least two uplink carriers in at least one cell, and the PHR When the format is the second format, the PHR includes the PH of one uplink carrier in at least one cell. In this way, by receiving the indication information sent by the access network device for indicating whether to report the PH of at least two uplink carriers in at least one cell or indicating the format of the PHR, the terminal device can report the PHR according to the requirements of the access network device, Resources for transmitting PHR are saved.

A third aspect of the embodiments of the present application provides a method for sending a power headroom report, including:

The access network device sends the uplink carrier configuration to the terminal device, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell; the access network device receives the PHR from the terminal device, the PHR is the terminal device in Triggered when the uplink carrier configuration changes.

In the method for sending a power headroom report provided by this embodiment of the present application, an access network device sends an uplink carrier configuration to a terminal device, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell, so that the terminal device can The PHR is triggered when the uplink carrier configuration changes. In this way, by designing the trigger conditions that meet the SUL technology, the access network equipment can obtain an accurate PH reference, so that the network side can accurately allocate uplink resources to the terminal equipment, improving the network side. Accuracy of resource scheduling.

With reference to the third aspect, in a possible implementation manner, the change in the uplink carrier configuration may include: the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device and the uplink data sent by the terminal device last time. The uplink carriers corresponding to the adopted resources are different; or, the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device is different from the uplink carrier corresponding to the resource indicated by the uplink scheduling information last received by the terminal device. In this way, the PHR is triggered at the same time when the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling is different from the uplink carrier corresponding to the resource indicated by the last data transmission or the last uplink scheduling, so that the access network device can obtain an accurate PH refer to.

With reference to the third aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes: the PH of the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device. In this way, when the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling is different from the uplink carrier corresponding to the resource indicated by the last data transmission or the last uplink scheduling, the currently received uplink carrier is sent to the access network device by sending the The PH of the uplink carrier corresponding to the resource indicated by the scheduling information enables the access network device to obtain an accurate PH reference.

In combination with the third aspect or the above possible implementation manner, in another possible implementation manner, the change in the uplink carrier configuration may include: the uplink carrier corresponding to the resource configured with the physical uplink control channel is replaced by the first uplink carrier. Change to the second uplink carrier. In this way, by triggering the PHR when the uplink carrier corresponding to the resource configured with the physical uplink control channel changes, the access network device can obtain an accurate PH reference.

With reference to the third aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes: a PH of the second uplink carrier under type 2. In this way, when the uplink carrier corresponding to the resource configured with the physical uplink control channel changes, the PH including the second uplink carrier is sent, so that the access network device can obtain an accurate PH reference in time.

With reference to the third aspect or the above possible implementation manner, in another possible implementation manner, the change in the uplink carrier configuration may include: in a carrier aggregation scenario: an uplink carrier is added to the primary cell in the primary cell group , or, the configuration of the uplink carrier configured on the primary cell in the primary cell group changes; or, in a dual-connectivity scenario: an uplink carrier is added to the primary cell in the primary cell group, or, the The configuration of the uplink carrier configured on the primary cell in the primary cell group changes, or an uplink carrier is added to the primary cell in the secondary cell group, or the uplink carrier configured on the primary cell in the secondary cell group is configuration has changed. In this way, when the uplink carrier configuration of the primary cell in the primary cell group and/or the primary cell in the secondary cell group changes, the PHR is triggered, so that the access network device can obtain an accurate PH reference.

With reference to the third aspect or the above possible implementation manner, in another possible implementation manner, the resources of the physical uplink shared channel are configured on the added uplink carrier; or, the added uplink carrier is only configured with sounding reference signals SRS resources. In this way, by triggering the PHR when the added uplink carrier is configured with the physical uplink shared channel resource or only configured with the SRS resource, so that the access network device can obtain an accurate PH reference.

In combination with the third aspect or the above possible implementation manner, in another possible implementation manner, when the added uplink carrier is configured with physical uplink shared channel resources, the PHR includes: the added uplink carrier is in the type of PH under Type 1; or, when only SRS resources are configured on the added uplink carrier, the PHR includes: the PH of the added uplink carrier under Type 3. In this way, when the uplink carrier configuration of the primary cell in the primary cell group and/or the primary cell in the secondary cell group changes, by reporting the PH of the increased uplink carrier, the access network device can obtain an accurate PH reference in time.

In combination with the third aspect or the above possible implementation manner, in another possible implementation manner, the configuration change of the uplink carrier further includes at least one of the following: an uplink carrier corresponding to a resource configured with a physical uplink shared channel Only the uplink carrier corresponding to the resource configured with SRS is reconfigured as the uplink carrier corresponding to the resource configured with the SRS, and the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured as the uplink carrier corresponding to the physical uplink shared channel. In this way, by triggering the PHR in time when the configuration of the uplink carrier changes, the access network device can obtain an accurate PH reference in time.

In combination with the third aspect or the above possible implementation manner, in another possible implementation manner, when the configuration of the uplink carrier changes, it includes: the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured to only be configured with When the uplink carrier corresponding to the resource of the SRS, the PHR includes: the PH of the uplink carrier whose configuration has changed under Type 3; or, when the configuration of the uplink carrier changes, including: only the uplink carrier corresponding to the SRS resource is configured When the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured, the PHR includes: the PH of the uplink carrier whose configuration has changed under type 1. In this way, when the configuration of the uplink carrier changes, the PH of the uplink carrier whose configuration has changed is reported, so that the access network device can obtain an accurate PH reference in time.

A fourth aspect of the embodiments of the present application provides a method for sending a power headroom report, including:

The access network device sends configuration information to the terminal device; the access network device receives the power headroom report PHR from the terminal device; wherein the PHR includes: the power headroom PH of at least two uplink carriers in at least one cell; or, the PHR It includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: the PH of one uplink carrier in at least one cell, and the media access control MAC protocol data unit PDU received by the access network device includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported.

In the method for sending a power headroom report provided by this embodiment of the present application, an access network device sends configuration information to a terminal device, and receives a PHR sent by the terminal device according to the configuration information; wherein the PHR includes: at least two uplinks in at least one cell The PH of the carrier; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: the PH of one uplink carrier in at least one cell, and the MAC received by the terminal device The PDU includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported, so that the terminal device reports the PH of at least two uplink carriers in at least one cell, or at least one The PH and indication information of an uplink carrier in the cell enable the network side to obtain an accurate PH reference, so that the network side can accurately allocate uplink resources to the terminal equipment and improve the accuracy of resource scheduling on the network side.

Wherein, optionally, the PHR is triggered when the terminal device determines that the trigger condition is satisfied.

With reference to the fourth aspect or the above possible implementation manner, in another possible implementation manner, when the PHR includes the PHs of at least two uplink carriers in at least one cell, the PHR may further include: second indication information, The second indication information is used to indicate that PHs of at least two uplink carriers in at least one cell are reported. In this way, by adding indication information to indicate whether the PHR reports the PHs of at least two uplink carriers in at least one cell, flexible configuration and reporting of the content of the PHR is realized.

With reference to the fourth aspect or the above possible implementation manner, in another possible implementation manner, the PHR including the PHs of at least two uplink carriers in at least one cell includes: the PHR includes: the first in the at least one cell The PH of one uplink carrier and the PH of at least one second uplink carrier; or, the PHR includes: the PH of the third uplink carrier and the PH of at least one fourth uplink carrier in at least one cell, the PH of the third uplink carrier is the PH calculated based on the actual transmission, and the PH of the fourth uplink carrier is the PH calculated based on the reference format; or, the PHR includes: the PH of the uplink carrier of the first priority in at least one cell and the PH of at least one second priority uplink carrier The PH of the upstream carrier of the highest level, the first priority is greater than the second priority. In this way, by reporting the PHs of at least two uplink carriers of the same cell, the network side can accurately allocate uplink resources to the terminal equipment, which improves the accuracy of resource scheduling on the network side.

With reference to the fourth aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes the PH of one uplink carrier in at least one cell, and the first indication information includes: the PH of the one uplink carrier is the PH of the first uplink carrier, or the PH of the third uplink carrier.

Optionally, the first indication information may be included in the MAC CE of the PHR.

With reference to the fourth aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes: uplink carrier configuration, where the uplink carrier configuration is used to indicate at least two uplink carriers in at least one cell. configuration.

With reference to the fourth aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes third indication information; wherein the third indication information is used to indicate whether the terminal equipment reports at least one cell PH of at least two uplink carriers in the PH; or, the third indication information is used to indicate the format of the PHR, when the format of the PHR is the first format, the PHR includes the PH of at least two uplink carriers in at least one cell, and the PHR When the format is the second format, the PHR includes the PH of one uplink carrier in at least one cell. In this way, by sending the access network device to the terminal device the indication information for indicating whether to report the PH of at least two uplink carriers in at least one cell or indicating the format of the PHR, so that the terminal device can report the PHR according to the requirements of the access network device , saving resources for transmitting PHR.

A fifth aspect of the embodiments of the present application provides a terminal device, including:

The receiving unit is used to receive the uplink carrier configuration from the access network equipment, the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell; the triggering unit is used to trigger when the uplink carrier configuration changes Power headroom reports PHR.

With reference to the fifth aspect, in a possible implementation manner, the change in the configuration of the uplink carrier includes: the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling information corresponds to the resource used to send the uplink data last time The uplink carrier is different; or, the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling information is different from the uplink carrier corresponding to the resource indicated by the last received uplink scheduling information.

With reference to the fifth aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes: the power headroom PH of the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling information.

In combination with the fifth aspect or the above possible implementation manner, in another possible implementation manner, the change in the configuration of the uplink carrier includes: the uplink carrier corresponding to the resource configured with the physical uplink control channel is changed from the first uplink carrier is the second uplink carrier.

With reference to the fifth aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes: a PH of the second uplink carrier under type 2.

In combination with the fifth aspect or the above possible implementation manner, in another possible implementation manner, the uplink carrier configuration is changed: including: in a carrier aggregation scenario: an uplink carrier is added to the primary cell in the primary cell group , or, the configuration of the uplink carrier configured on the primary cell in the primary cell group changes; or, in a dual-connectivity scenario: an uplink carrier is added to the primary cell in the primary cell group, or, the The configuration of the uplink carrier configured on the primary cell in the primary cell group changes, or an uplink carrier is added to the primary cell in the secondary cell group, or the uplink carrier configured on the primary cell in the secondary cell group is configuration has changed.

With reference to the fifth aspect or the above possible implementation manner, in another possible implementation manner, the resources of the physical uplink shared channel are configured on the added uplink carrier; or, the added uplink carrier is only configured with sounding reference signals SRS resources.

With reference to the fifth aspect or the above possible implementation manner, in another possible implementation manner, when the added uplink carrier is configured with physical uplink shared channel resources, the PHR includes: the added uplink carrier is under type 1. PH; or, when only SRS resources are configured on the added uplink carrier, the PHR includes: the PH of the added uplink carrier under type 3.

With reference to the fifth aspect or the above possible implementation manner, in another possible implementation manner, the configuration change of the uplink carrier further includes at least one of the following: the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured In order to configure only the uplink carrier corresponding to the resource configured with the SRS, only the uplink carrier corresponding to the resource configured with the SRS is reconfigured as the uplink carrier corresponding to the resource configured with the physical uplink shared channel.

With reference to the fifth aspect or the above possible implementation manner, in another possible implementation manner, when the configuration of the uplink carrier changes, it includes: the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured to only be configured with When the uplink carrier corresponding to the resource of the SRS, the PHR includes: the PH of the uplink carrier whose configuration has changed under Type 3; or, when the configuration of the uplink carrier is changed, includes: only the uplink carrier corresponding to the SRS resource is configured to be reconfigured as When the uplink carrier corresponding to the resource of the physical uplink shared channel is configured, the PHR includes: the PH of the uplink carrier whose configuration has changed under type 1.

A sixth aspect of the embodiments of the present application provides a terminal device, including:

The receiving unit is used to receive configuration information from the access network equipment; the sending unit is used to send the power headroom report PHR to the access network equipment according to the configuration information received by the receiving unit; wherein, the PHR includes: at least one cell in the The power headroom PH of at least two uplink carriers; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: the PH of one uplink carrier in at least one cell, and the terminal The medium access control MAC protocol data unit PDU sent by the device includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported.

With reference to the sixth aspect, in a possible implementation manner, the sending unit is specifically configured to send the PHR to the access network device according to the configuration information when the trigger condition is satisfied.

With reference to the sixth aspect or the above possible implementation manner, in another possible implementation manner, when the PHR includes the PHs of at least two uplink carriers in at least one cell, the PHR further includes: second indication information, the second indication The information is used to indicate that the PH of at least two uplink carriers in at least one cell is reported.

With reference to the sixth aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes PHs of at least two uplink carriers in at least one cell, including: the PHR includes: the PH of the first uplink carrier in at least one cell PH and the PH of at least one second uplink carrier; or, the PHR includes: the PHR includes: the PH of the third uplink carrier and the PH of at least one fourth uplink carrier in at least one cell, and the PH of the third uplink carrier is The PH calculated based on the actual transmission, the PH of the fourth uplink carrier is the PH calculated based on the reference format; or, the PHR includes: the PH of the uplink carrier of the first priority and at least one uplink carrier of the second priority in at least one cell The PH of the carrier, the first priority is greater than the second priority.

With reference to the sixth aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes the PH and the first indication information of one uplink carrier in at least one cell, including: the PHR includes: the one uplink carrier The PH is the PH of the first uplink carrier, or the PH of the third uplink carrier; or the PHR includes: the PH of the uplink carrier of the first priority in at least one cell and the first indication information.

With reference to the sixth aspect or the above possible implementation manner, in another possible implementation manner, when the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information, the first indication information is included in the PHR. in the MAC control unit CE.

With reference to the sixth aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes: uplink carrier configuration, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell.

With reference to the sixth aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes third indication information; wherein the third indication information is used to indicate whether the terminal equipment reports at least two of the at least one cell The PH of the uplink carrier; or, the third indication information is used to indicate the format of the PHR. When the format of the PHR is the first format, the PHR includes the PHs of at least two uplink carriers in at least one cell, and when the format of the PHR is the second format , the PHR includes the PH of one uplink carrier in at least one cell.

A seventh aspect of the embodiments of the present application provides an access network device, including:

The sending unit is used to send the uplink carrier configuration to the terminal equipment, and the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell; the receiving unit is used to receive the power headroom report PHR from the terminal equipment, and the PHR is the terminal equipment. Triggered by the device when the uplink carrier configuration changes.

With reference to the seventh aspect, in a possible implementation manner, the change of the uplink carrier configuration includes: in a carrier aggregation scenario: an uplink carrier is added to the primary cell in the primary cell group, or, the primary cell in the primary cell group The configuration of the uplink carrier configured on the cell changes; or, in a dual connectivity scenario: an uplink carrier is added to the primary cell in the primary cell group, or, the primary cell in the primary cell group is configured on the primary cell group. The configuration of the uplink carrier changes, or an uplink carrier is added to the primary cell in the secondary cell group, or the configuration of the uplink carrier configured on the primary cell in the secondary cell group changes.

With reference to the seventh aspect or the above possible implementation manner, in another possible implementation manner, the resources of the physical uplink shared channel are configured on the added uplink carrier; or, the added uplink carrier is only configured with sounding reference signals SRS resources.

With reference to the seventh aspect or the above possible implementation manner, in another possible implementation manner, when the added uplink carrier is configured with physical uplink shared channel resources, the PHR includes: the added uplink carrier is under type 1. PH; or, when only SRS resources are configured on the added uplink carrier, the PHR includes: the PH of the added uplink carrier under type 3.

An eighth aspect of the embodiments of the present application provides an access network device, characterized in that it includes:

a sending unit, configured to send configuration information to a terminal device; a receiving unit, configured to receive a power headroom report PHR from the terminal device; wherein the PHR includes: the power headroom PH of at least two uplink carriers in at least one cell; or , the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: the PH of one uplink carrier in at least one cell, and the media access control MAC protocol data received by the access network device The unit PDU includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported.

With reference to the eighth aspect, in a possible implementation manner, when the PHR includes the PHs of at least two uplink carriers in at least one cell, the PHR further includes: second indication information, where the second indication information is used to indicate that at least two uplink carriers are reported The PH of at least two uplink carriers in a cell.

With reference to the eighth aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes the PHs of at least two uplink carriers in at least one cell, including: the PHR includes: the PH of the first uplink carrier in at least one cell PH and the PH of at least one second uplink carrier; or, the PHR includes: the PH of the third uplink carrier and the PH of at least one fourth uplink carrier in at least one cell, the PH of the third uplink carrier is based on the actual transmission The calculated PH, the PH of the fourth uplink carrier is the PH calculated based on the reference format; or, the PHR includes: the PH of the uplink carrier of the first priority and the PH of at least one uplink carrier of the second priority in at least one cell , the first priority is greater than the second priority.

With reference to the eighth aspect or the above possible implementation manner, in another possible implementation manner, the PHR includes the PH and the first indication information of an uplink carrier in at least one cell, including: the PHR includes: the one uplink carrier The PH is the PH of the first uplink carrier, or the PH of the third uplink carrier.

With reference to the eighth aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes: uplink carrier configuration, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell.

With reference to the eighth aspect or the above possible implementation manner, in another possible implementation manner, the configuration information includes third indication information; wherein the third indication information is used to indicate whether the terminal equipment reports at least two of the at least one cell The PH of the uplink carrier; or, the third indication information is used to indicate the format of the PHR. When the format of the PHR is the first format, the PHR includes the PHs of at least two uplink carriers in at least one cell, and when the format of the PHR is the second format , the PHR includes the PH of one uplink carrier in at least one cell.

In a ninth aspect of the embodiments of the present application, a terminal device is provided, including: at least one processor and a memory; the memory is used to store a computer program, so that when the computer program is executed by the at least one processor, the first aspect or the first A possible implementation manner of the aspect, or, the second aspect or the method for sending a power headroom report described in any of the possible implementation manners of the second aspect.

A tenth aspect of the embodiments of the present application provides an access network device, including: at least one processor and a memory; the memory is used to store a computer program, so that when the computer program is executed by the at least one processor, the third aspect or A possible implementation manner of the third aspect, or, the fourth aspect or the method for sending a power headroom report described in any of the possible implementation manners of the fourth aspect.

An eleventh aspect of the embodiments of the present application provides a computer storage medium, which stores a computer program, and when the computer program is executed by a processor, implements the first aspect or a possible implementation manner of the first aspect, or, the second aspect The method for sending a power headroom report according to any one of the aspect or possible implementation manners of the second aspect.

A twelfth aspect of the embodiments of the present application provides a computer storage medium, which stores a computer program, and when the computer program is executed by a processor, implements the third aspect or a possible implementation manner of the third aspect, or, the fourth aspect The method for sending a power headroom report according to any one of the aspect or possible implementation manners of the fourth aspect.

In a thirteenth aspect of the embodiments of the present application, a system is provided, including: a possible implementation manner of the fifth aspect or the fifth aspect, or any of the possible implementation manners of the sixth aspect or the sixth aspect The terminal device described in item 1, and the access network device according to any one of the seventh aspect or the possible implementation manner of the seventh aspect, or the eighth aspect or the possible implementation manner of the eighth aspect.

In a fourteenth aspect of the embodiments of the present application, a chip system is provided, where the chip system includes a processor, and is configured to support a terminal device and an access network device to implement the functions involved in the above aspects, such as generating or processing the above method. the data and/or information referred to in this document. In a possible design, the chip system further includes a storage circuit, and the storage circuit is used for storing necessary program instructions and data of the terminal device and the access network device. The chip system may be composed of chips, or may include chips and other discrete devices.

It can be understood that the terminal device described in the fifth aspect, the sixth aspect and the ninth aspect, the access network device described in the seventh aspect, the eighth aspect and the tenth aspect, the eleventh aspect and the tenth aspect The computer storage medium described in the second aspect, the system described in the thirteenth aspect, and the chip system described in the fourteenth aspect are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved are as follows: With reference to the beneficial effects in the corresponding methods provided above, details are not repeated here.

Description of drawings

Fig. 1 is the format schematic diagram of a kind of PHR provided by the prior art;

Fig. 2 is the format schematic diagram of another kind of PHR that the prior art provides;

Fig. 3 is the format schematic diagram of another PHR provided by the prior art;

Fig. 4 is a schematic diagram of the format of another PHR provided by the prior art;

FIG. 5 is a schematic diagram of the regional composition of a cell according to an embodiment of the present application;

FIG. 6 is a simplified schematic diagram of a communication system provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of the composition of an access network device according to an embodiment of the present application;

FIG. 8 is a schematic diagram of the composition of a terminal device according to an embodiment of the present application;

FIG. 9 is a schematic flowchart of a method for sending a power headroom report according to an embodiment of the present application;

10 is a flowchart of another method for sending a power headroom report provided by an embodiment of the present application;

11 is a schematic diagram of a format of a PHR provided by an embodiment of the present application;

12 is a schematic diagram of the format of another PHR provided by an embodiment of the present application;

13 is a schematic diagram of a format of another PHR provided by an embodiment of the present application;

FIG. 14 is a schematic diagram of the composition of another terminal device provided by an embodiment of the present application;

FIG. 15 is a schematic diagram of the composition of another terminal device provided by an embodiment of the present application;

FIG. 16 is a schematic diagram of the composition of still another terminal device provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of the composition of another access network device provided by an embodiment of the present application;

FIG. 18 is a schematic diagram of the composition of another access network device provided by an embodiment of the present application;

FIG. 19 is a schematic diagram of the composition of still another access network device according to an embodiment of the present application.

Detailed ways

The terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to limit a specific order.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

In order to facilitate a clear understanding of the following embodiments, a brief introduction to the related technology is given first:

Dual Connectivity (DC): It is a mode in which the terminal device is in the Radio Resource Control (RRC) connected (RRC_CONNECTED) state. The terminal device is configured with a Master Cell Group (MCG) and a secondary Secondary Cell Group (SCG). When the radio access network supports DC, the terminal equipment in the RRC_CONNECTED state can be configured to use the radio resources provided by two different base stations. The two base stations are connected by the X2 interface, one as the master base station (Master eNB, MeNB), one As a secondary base station (Secondary eNB, SeNB). In the DC scenario, the terminal device is connected to one MeNB and one SeNB. Wherein, as shown in Table 1, the MCG is a group of serving cells associated with the MeNB, consisting of a PCell (PCell refers to the primary cell of the MCG) and optionally one or more secondary cells (SCell). The SCG is a group of serving cells associated with the SeNB, and consists of a PSCell (PSCell refers to the primary cell of the SCG) and optionally one or more SCells.

Table 1

In addition, it should be noted that, with the evolution of communication technology, dual connectivity may be changed to multi-connection later. For example, in the case where the radio access network supports multi-connection, the terminal device in the RRC_CONNECTED state can be configured to use three or more connections. Radio resources provided by more than three different base stations. The method provided by the embodiment of the present application is also applicable to the multi-connection scenario, and the specific implementation and the specific implementation type in the dual-connection scenario are described in this application by taking the dual-connection scenario as an example.

Carrier Aggregation (CA): Carrier aggregation means that a terminal device can simultaneously use multiple component carriers (Component Carrier, CC) for uplink and downlink communication, thereby supporting high-speed data transmission. In the carrier aggregation technology, there will be a PCell, which is mainly used for security, handover, uplink physical control channel bearer and other tasks. Other cells participating in aggregation are called SCells. SCells only undertake the work of data transmission and do not involve security, handover, etc. Wait.

When the network side allocates uplink resources to the terminal equipment, it is necessary to refer to the PH of the terminal equipment in the cell. PH is equal to the difference between the maximum transmit power of the terminal equipment in the cell and the estimated transmit power used for the current PUSCH transmission in the cell, which can be simply expressed as: PH=UEAllowedMaxTransPower-PuschPower, where PH Indicates the power headroom, UEAllowedMaxTransPower represents the maximum transmit power of the terminal device in the cell, and PuschPower represents the transmit power currently used to transmit the PUSCH in the cell. The unit of PH is dB, and the range is [-23dB, +40dB]. If the PH value is negative, it means that the network side schedules a data higher than the maximum transmit power of the terminal device at that time.

In the existing standard protocol, the trigger condition for the terminal equipment to report the PHR and the format of the PHR reported in different scenarios (eg DC, CA) are specified.

Among them, the trigger conditions stipulated by the existing standard protocols include the following six:

1. When the prohibit timer expires, and the difference between the path loss measured when the terminal device reported the PHR last time and the path loss measured currently is greater than a threshold.

2. When the period of the periodic timer (periodic Timer) arrives.

3. In the DC scenario, when a PSCell is added.

4. In the DC or CA scenario, when an SCell is activated.

5. When the terminal equipment performs PHR reconfiguration, such as the period of the periodic timer, the length of the prohibition timer and other parameters are reconfigured.

6. The prohibitPHR Timer times out, and the Media Access Control (MAC) entity has uplink resources that can be used for transmission, and in the current transmission time interval (TTI), for any configured MAC entity The activated SCell satisfies the following conditions: the cell has allocated uplink resources or PUCCH resources, and the change of the required power backoff value is greater than the uplink resources for sending PUCCH measured when the PHR was reported on the MAC entity configured in the cell last time changes in path loss.

The format of the PHR reported in different scenarios stipulated by the existing standard protocol is:

1. For a scenario where a single cell is configured, the format of the PHR is shown in Figure 1. It can be seen from FIG. 1 that the PHR is a byte, wherein R is a reserved bit, and PH is the power headroom of the terminal device in the cell obtained by calculation.

2. For multi-cell configuration (up to 8 cells or up to 32 cells), and in the CA scenario, the format of the PHR is shown in Figures 2 and 3. The PHR format shown in FIG. 2 may be called a PHR extended format (ExtendedPHR), and the PHR format shown in FIG. 3 may be called an ExtendedPHR 2 format. Among them, (a) in FIG. 2 is a schematic diagram of the structure of PHR when the SCell is configured with PUCCH when a maximum of 8 cells are configured, and (b) in FIG. 2 is a case where a maximum of 32 cells are configured, and it is not supported A schematic diagram of the structure of the PHR when the SCell is configured with PUCCH. (a) in FIG. 3 is a schematic diagram of the structure of PHR when supporting SCell is configured with PUCCH when a maximum of 8 cells are configured, and (b) in FIG. 3 is a case where a maximum of 32 cells are configured, supporting SCell is configured with PUCCH Schematic diagram of the structure of the PHR.

3. For a multi-cell configuration (a maximum of 8 cells or a maximum of 32 cells), and in the DC scenario, the format of the PHR is shown in FIG. 4 . The PHR format shown in FIG. 4 may be referred to as a dual connection PHR (dual Connection PHR) format. Wherein, (a) in FIG. 4 is a schematic structural diagram of the PHR in the case of configuring a maximum of 8 cells, and (b) in FIG. 2 is a schematic structural diagram of the PHR in the case of configuring a maximum of 32 cells.

Wherein, in FIG. 2-FIG. 4, the Cx field is used for whether the SCell with index number x reports PH. In the case of configuring a maximum of 8 cells, the value of x is {1, 2, 3, ..., 7}, and in the case of configuring a maximum of 32 cells, the value of x is {1, 2, 3, ... , 31}.

The R field is reserved.

The P field is used to indicate whether to apply power backoff.

The value of the V field can be 0 or 1. When V is 1, it is used to indicate that the corresponding PH is the PH calculated based on the reference format, and when V is 0, it is used to indicate that the corresponding PH is the PH calculated based on the actual transmission

The P _CMAX,Cm field is used to represent the maximum transmit power of the corresponding cell. Wherein, when V is 1, the _{PCMAX, C1} field of the corresponding cell does not need to be included.

The PH (Type 2, PCell) field is used to represent the PH of the PCell under Type (Type) 2.

The PH (Type 1, PCell) field is used to represent the PH of PCell under Type 1.

The PH (Type X, SCell n) field is used to indicate the PH of SCell n under Type X, where the value of X can be 1 or 3, and n is an integer greater than 1, which is the index number of the SCell.

The PH (Type 2, PUCCH SCell) field is used to indicate the PH of the SCell configured with PUCCH under Type 2.

The PH (Type 2, PSCell) field is used to indicate the PH of the PSCell under Type 2.

Among them, Type 1 refers to the PH when only PUSCH is currently transmitted in the cell. Type 2 refers to the PH when PUCCH and PUSCH are simultaneously transmitted in the cell. Type 3 refers to the PH when only SRS is currently transmitted in the cell.

In addition, as shown in FIG. 5 , due to the high operating frequency band of the new radio interface (New Radio, NR), the terminal equipment in the cell edge area can receive the signal sent by the network side through the NR downlink (Downlink, DL) However, the low transmit power of the terminal equipment causes the network side to fail to receive the signal of the terminal equipment in the cell edge area, that is, there is a problem of asymmetric uplink and downlink coverage. In order to solve this problem, it is proposed to introduce at least one low-frequency frequency band (such as the Long Term Evolution (LTE) frequency band) to assist the terminal equipment in the transmission of uplink data, so that the terminal equipment has at least two uplink carriers for uplink. For data transmission, this technology may be referred to as a Supplementary Uplink (SUL) technology. Among them, in a cell, among the at least two uplink carriers of the terminal equipment, the original high-frequency band uplink carrier may be called the primary uplink (Primary Uplink, PUL), and the other introduced low-frequency band uplink carriers are all It is called SUL, that is, in the SUL technology, a terminal device can have one PUL and at least one SUL in a cell to solve the problem of asymmetric uplink and downlink coverage. Wherein, when the terminal device uses the same transmit power to send uplink data to the access network device, the transmission distance when sending the uplink data on the PUL is longer than the transmission distance when sending the uplink data on the SUL.

It should be noted that among the at least two uplink carriers of the terminal equipment, the names PUL and SUL are only used to distinguish the original high-frequency band uplink carrier from the introduced low-frequency band uplink carrier. The names of PUL and SUL may be changed, and the embodiments of the present application do not make specific limitations here.

For example, as shown in FIG. 5 , in a cell, the terminal device has one PUL and one SUL as an example, the terminal device in the idle state can determine the reference signal received power (Reference Signal Received Power, RSRP) of the downlink signal. Decide which uplink carrier to access through PUL and SUL. When the RSRP exceeds the preset threshold, it indicates that the terminal equipment is in the central area of the cell (area 1 shown in Figure 5). At this time, the terminal equipment can select PUL for uplink access. enter. When the RSRP is lower than the preset threshold, it indicates that the terminal equipment is in the edge area of the cell (area 2 shown in FIG. 5 ), and the terminal equipment selects SUL for uplink access at this time. When the uplink access of the terminal device is successful, it can enter the connected state, so that data transmission can be performed.

It can be seen that in a scenario where the SUL technology is used, there may be a situation where at least two uplink carriers may be configured in a cell (eg, PCell, SCell, PSCell). In this case, if the terminal equipment needs to report the PH of the cell, it needs to separately report the PH of the cell for different uplink carriers in the cell. However, the trigger conditions and formats specified in the existing standard protocols are all for the case where only one uplink carrier is configured in the cell. At this time, if the terminal equipment still reports the PHR according to the trigger conditions and format specified in the existing standard protocol, the network side will not be able to accurately allocate uplink resources to the terminal equipment due to the inability to obtain an accurate PH reference, which will lead to resource scheduling problems on the network side. Accuracy is greatly reduced.

In order to solve the problem that the network side cannot accurately allocate uplink resources to the terminal equipment due to the inability to obtain an accurate PH reference, and the accuracy of resource scheduling on the network side is greatly reduced. An embodiment of the present application provides a method for sending a power headroom report. In a scenario where a trigger condition is changed, a terminal device receives an uplink carrier configuration from an access network device, where the uplink carrier configuration is used to indicate at least two uplinks in at least one cell The configuration of the carrier, when the configuration of the uplink carrier changes, the terminal device triggers the PHR. In this way, the network side can obtain an accurate PH reference by designing the triggering conditions that meet the SUL technology. In the scenario of changing the content of the PHR, the terminal device receives configuration information from the access network device, and sends the PHR to the access network device according to the configuration information; wherein the PHR includes: PHs of at least two uplink carriers in at least one cell Or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: the PH of one uplink carrier in at least one cell, and the MAC protocol data unit received by the terminal equipment (Protocol Data Unit, PDU) includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported, so that by reporting the PH of at least two uplink carriers in at least one cell , or the PH and indication information of an uplink carrier in at least one cell, so that the network side can obtain an accurate PH reference. Therefore, the network side can accurately allocate uplink resources to the terminal equipment, and the accuracy of resource scheduling on the network side is improved.

It should be noted that, in this embodiment of the present application, the PHR includes the PHs of at least two uplink carriers in at least one cell, which means that the PHs of at least two uplink carriers in the PHs of the multiple uplink carriers included in the PHR are If they belong to the same cell, that is, there is at least one cell that reports the PH of at least two uplink carriers.

The implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

FIG. 6 shows a simplified schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG. 6 , the communication system may include: at least one access network device 11 and a terminal device 12 .

The access network device 11 and the terminal device 12 can communicate through radio waves, and can also communicate through visible light, laser, infrared, light quantum, power line, optical fiber, coaxial cable, copper stranded wire, and the like.

The access network device 11 may be referred to as a base station, and the base station may be a base station (Base Station, BS) or a base station controller for wireless communication. It can also be referred to as a wireless access point, a transceiver station, a relay station, a cell, a Transmit and Receive Port (TRP), and so on. Specifically, the access network device 11 is a device deployed in the wireless access network to provide a wireless communication function for the terminal device 12, which can be connected with the terminal device 12, receive data sent by the terminal device 12 and send it to the core network equipment. The main functions of the access network device 11 include one or more of the following functions: management of wireless resources, compression of Internet Protocol (Internet Protocol, IP) headers and encryption of user data streams, MME selection and routing when user equipment is attached User plane data to a service gateway (Service Gateway, SGW), organization and transmission of paging messages, organization and transmission of broadcast messages, measurement and configuration of measurement reports for mobility or scheduling purposes, and so on. The access network equipment 11 may include various forms of cellular base stations, home base stations, cells, wireless transmission points, macro base stations, micro base stations, relay stations, wireless access points, and the like.

In systems using different wireless access technologies, the name of the access network device 11 may be different, for example, in an LTE network (or called the fourth Generation Telecommunication (4G) system) In the 3rd generation mobile communication technology (the third Generation Telecommunication, 3G) system, it is called the base station (Node B), in the next generation wireless communication system (such as, In the fifth generation mobile communication technology (the fifth Generation Telecommunication, 5G) system), it is called gNB, CU, DU, etc., and in the wireless local access system, it is called access point (Access Ponit). This name may change as communication technology evolves. In addition, in other possible cases, the access network device 11 may be other devices that provide wireless communication functions for the terminal device 12 . For convenience of description, in this embodiment of the present application, a device that provides a wireless communication function for the terminal device 12 is referred to as an access network device.

The terminal device 12 refers to a device that includes wireless transceiver functions and can cooperate with network devices (eg, access network device 11 and/or core network device) to provide communication services for users. The terminal device 12 may be a wireless terminal or a wired terminal, a wireless terminal may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. A wireless terminal may communicate with one or more core networks or the Internet via a radio access network (eg, Radio Access Network, RAN), and the wireless terminal may be a mobile terminal such as a mobile phone (or "cellular" phone), a computer and data cards, for example, may be portable, pocket-sized, hand-held, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL, Wireless Local Loop) stations, Personal Digital Assistant (Personal Digital Assistant, PDA) and other devices. A wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote Terminal (Remote Terminal), Access Terminal (Access Terminal), User Terminal (User Terminal), User Agent (User Agent), Subscriber Station (SS), Customer Premises Equipment (CPE), User Equipment (User Equipment, UE), etc.

For example, the terminal device 12 may be a mobile phone, a tablet computer, a notebook computer, an Ultra-mobile Personal Computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and the like. As an embodiment, as shown in FIG. 6 , the terminal device 12 included in the network architecture of the present application is a mobile phone.

It should be noted that, in FIG. 6, it is shown that the terminal device 12 owns one PUL and one SUL as an example. In an actual application scenario, the terminal device 12 may own multiple uplink carriers (one PUL and at least one SUL), The embodiments of the present application are not specifically limited herein.

FIG. 7 is a schematic diagram of the composition of an access network device according to an embodiment of the present application. As shown in FIG. 7 , the access network device may include at least one processor 21 , a memory 22 , a transceiver 23 , and a bus 24 .

In the following, each component of the access network device will be introduced in detail with reference to FIG. 7 :

The processor 21 is the control center of the access network device, and may be a processor or a general term for multiple processing elements. For example, the processor 21 is a central processing unit (Central Processing Unit, CPU), may also be a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or is configured to implement one or more integrated circuits of the embodiments of the present application For example: one or more microprocessors (Digital SignalProcessor, DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array, FPGA).

The processor 21 can execute various functions of the access network device by running or executing software programs stored in the memory 22 and calling data stored in the memory 22 .

In a specific implementation, as an embodiment, the processor 21 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 7 .

In a specific implementation, as an embodiment, the access network device may include multiple processors, for example, the processor 21 and the processor 25 shown in FIG. 7 . Each of these processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

The memory 22 may be a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other types of information and instructions that can be stored The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer any other medium taken, but not limited to this. The memory 22 may exist independently, and is connected to the processor 21 through the bus 24 . The memory 22 may also be integrated with the processor 21 .

The memory 22 is used for storing the software program for executing the solution of the present application, and the execution is controlled by the processor 21 .

Transceiver 23 for communicating with other devices or communication networks. For example, it is used to communicate with communication networks such as Ethernet, radio access network (RAN), wireless local area network (Wireless Local Area Networks, WLAN). Transceiver 23 may include all or part of a baseband processor, and optionally an RF processor. The RF processor is used to transmit and receive RF signals, and the baseband processor is used to realize the processing of the baseband signal converted by the RF signal or the baseband signal to be converted into the RF signal.

The bus 24 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, a peripheral device interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus or the like. The bus can be divided into address bus, data bus, control bus and so on. For ease of presentation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.

The device structure shown in FIG. 7 does not constitute a limitation on the access network device, and may include more or less components than shown, or combine some components, or arrange different components.

FIG. 8 is a schematic diagram of the composition of a terminal device according to an embodiment of the present application. As shown in FIG. 8 , the terminal device may include at least one processor 31 , memory 32 , transceiver 33 and bus 34 .

Below in conjunction with Fig. 8, each constituent component of the terminal device is introduced in detail:

The processor 31 may be one processor, or may be a general term for multiple processing elements. For example, the processor 31 may be a general-purpose CPU, or an ASIC, or one or more integrated circuits for controlling the execution of programs in the solution of the present application, such as one or more DSPs, or one or more FPGAs. The processor 31 can execute various functions of the terminal device by running or executing software programs stored in the memory 32 and calling data stored in the memory 32 .

In a specific implementation, as an embodiment, the processor 31 may include one or more CPUs. For example, as shown in FIG. 8, the processor 31 includes CPU0 and CPU1.

In a specific implementation, as an embodiment, the terminal device may include multiple processors. For example, as shown in FIG. 8 , a processor 31 and a processor 35 are included. Each of these processors can be a single-CPU or a multi-CPU. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

The memory 32 may be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or EEPROM, CD-ROM or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation. The memory 32 may exist independently and is connected to the processor 31 through a bus 34 . The memory 32 may also be integrated with the processor 31 .

The transceiver 33 is used to communicate with other devices or communication networks, such as Ethernet, RAN, WLAN and so on. The transceiver 33 may include a receiving unit to implement a receiving function, and a transmitting unit to implement a transmitting function.

The bus 34 can be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into address bus, data bus, control bus and so on. For ease of presentation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.

The device structure shown in FIG. 8 does not constitute a limitation on the terminal device, and may include more or less components than those shown in the figure, or combine some components, or arrange different components. Although not shown, the terminal device may further include a battery, a camera, a Bluetooth module, a Global Positioning System (Global Position System, GPS) module, a display screen, etc., which will not be repeated here.

FIG. 9 is a schematic flowchart of a method for sending a power headroom report according to an embodiment of the present application. As shown in FIG. 9 , the method may include:

401. The access network device sends the uplink carrier configuration to the terminal device.

The uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell.

402. The terminal device receives the uplink carrier configuration from the access network device.

403. When the uplink carrier configuration changes, the terminal device triggers the PHR.

After the terminal device receives the configuration indicating at least two uplink carriers in at least one cell from the access network device, that is, after receiving the uplink carrier configuration, the terminal device can determine whether the uplink carrier configuration has changed, and determine whether the uplink carrier configuration has changed. When the carrier configuration changes, it indicates that PHR reporting can be triggered. At this time, the terminal device can trigger the PHR to send the PHR to the access network device.

404. The access network device receives the PHR from the terminal device.

Wherein, after the access network device receives the PHR from the terminal device, when uplink resource allocation needs to be performed, it may refer to the received PHR for allocation.

In a specific implementation, the change of the uplink carrier configuration may include a variety of situations, which will be described in detail below according to the situation.

In some embodiments, the configuration change of the uplink carrier may specifically be: the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device is different from the uplink carrier corresponding to the resource used by the terminal device to send the uplink data last time Or, the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device is different from the uplink carrier corresponding to the resource indicated by the uplink scheduling information last received by the terminal device.

Specifically, when the terminal device obtains new uplink scheduling (Grant) information, the terminal device can determine whether the uplink carrier corresponding to the resource indicated by the uplink scheduling information is the same as the uplink carrier corresponding to the resource used for sending uplink data last time, If the uplink carrier corresponding to the resource indicated by the uplink scheduling information is different from the uplink carrier corresponding to the resource used for sending the uplink data last time, the PHR is triggered. If the uplink carrier corresponding to the resource indicated by the uplink scheduling information is the same as the uplink carrier corresponding to the resource used for sending the uplink data last time, the PHR is not triggered. The uplink data may be PHR or other data sent by the terminal device to the access network device, which is not specifically limited in this embodiment of the present application;

And/or, when the terminal device obtains new uplink scheduling information, the terminal device can determine whether the uplink carrier corresponding to the resource indicated by the uplink scheduling information is the same as the uplink carrier corresponding to the resource indicated by the last received uplink scheduling information. , if the uplink carrier corresponding to the resource indicated by the uplink scheduling information is different from the uplink carrier corresponding to the resource indicated by the last received uplink scheduling information, the PHR is triggered. If the uplink carrier corresponding to the resource indicated by the uplink scheduling information is the same as the uplink carrier corresponding to the resource indicated by the last received uplink scheduling information, the PHR is not triggered.

The PHR at least includes the PH of the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling information. For example, the uplink carrier corresponding to the resource indicated by the uplink scheduling information currently received by the terminal device is carrier a, and the uplink carrier corresponding to the resource indicated by the uplink scheduling information received last time (or, the last time the uplink data was sent using the The uplink carrier corresponding to the resource of ) is the carrier b, and the carrier a is different from the carrier b. At this time, the terminal equipment can trigger the PHR, and report the PHR at least including the PH of the carrier b to the access network equipment. Wherein, carrier a and carrier b may be different uplink carriers in the same cell, for example, carrier a is PUL in PCell, carrier b is SUL in PCell, or may be different uplink carriers in different cells, for example, carrier a is PSCell The PUL in the carrier b is the SUL in the SCell.

Further, in order not to trigger the PHR too frequently when the access network device dynamically schedules multiple uplink carriers more frequently, the frequency of triggering the PHR can also be limited by setting a ProhibitTimer. For example, the terminal device determines that the uplink carrier corresponding to the resource indicated by the currently received uplink scheduling information is different from the uplink carrier corresponding to the resource indicated by the last received uplink scheduling information (or, the uplink carrier used in the last transmission of uplink data is If the ProhibitTimer times out, the PHR will be triggered; if the ProhibitTimer has not expired, the PHR will not be triggered.

It should be noted that, during specific implementation, the ProhibitTimer may be a ProhibitTimer in an existing standard protocol that is reused, or a timer may be reconfigured. In the case of reconfiguring the ProhibitTimer, the timing time of the ProhibitTimer can be set according to the requirements of the actual application scenario. In addition, the ProhibitTimer may be uniformly configured for the uplink carriers in the cell, or may be separately configured for different uplink carriers, which is not specifically limited in this embodiment of the present application.

In other embodiments, the configuration change of the uplink carrier may specifically be: the uplink carrier corresponding to the resource configured with the physical uplink control channel (eg PUCCH) is changed from the first uplink carrier to the second uplink carrier.

It should be noted that, in this embodiment of the present application, the first uplink carrier and the second uplink carrier are different uplink carriers. For example, the first uplink carrier is PUL in PCell, the second uplink carrier is SUL in PCell, or the first uplink carrier is SUL in PCell, the second uplink carrier is PUL in SCell, or the first uplink carrier is the SUL in the PCell, and the second uplink carrier is the SUL in the SCell, which is not specifically limited in this embodiment of the present application.

Specifically, when the terminal device determines that the uplink carrier corresponding to the resource configured with the physical uplink control channel in a certain cell is changed from the first uplink carrier to the second uplink carrier, the terminal device triggers the PHR. The PHR at least includes: the PH of the second uplink carrier under Type 2, that is, the PHR includes the Type 2 PH of the second uplink carrier. For example, when the uplink carrier corresponding to the resource configured with PUCCH is changed from carrier c to carrier d, the terminal device triggers a PHR, and the PHR carries at least the Type2PH of carrier d. In this way, by causing the terminal device to trigger the PHR when the carrier corresponding to the configured PUCCH resource changes, the access network device can obtain a reference faster when scheduling uplink resources on multiple uplink carriers of the terminal device.

In still other embodiments, the uplink carrier configuration changes may specifically be: in a dual connectivity scenario, the uplink carrier configuration of a special cell (Special Cell, SpCell) changes. Wherein, SpCell refers to the PCell (primary cell) of the MCG, the PSCell of the SCG, and/or the PCell under normal circumstances (without a DC configuration). That is, when the uplink carrier configuration of the SpCell changes, the terminal device triggers the PHR.

The change of the uplink carrier configuration of the SpCell is specifically: in the carrier aggregation scenario, an uplink carrier is added to the primary cell in the primary cell group, or the configuration of the uplink carrier configured on the primary cell in the primary cell group is changed. Or, in the dual connectivity scenario, an uplink carrier is added to the primary cell in the primary cell group, or the configuration of the uplink carrier configured on the primary cell in the primary cell group is changed, or the primary cell in the secondary cell group is changed. An uplink carrier is added to the UPS, or the configuration of the uplink carrier configured on the primary cell in the secondary cell group changes.

In this embodiment of the present application, adding an uplink carrier may refer to: the added uplink carrier is configured with physical uplink shared channel (eg PUSCH) resources; or, the added uplink carrier is only configured with SRS resources. Optionally, when only the SRS is configured on the added uplink carrier, the PHR may not be triggered.

Wherein, in the case of triggering the PHR, when the added uplink carrier is configured with physical uplink shared channel resources, the PHR reported by the terminal device to the access network device at least includes: the PH of the added uplink carrier under type 1. When only the resources of the SRS are configured on the added uplink carrier, the PHR reported to the access network device at least includes: the PH of the added uplink carrier under type 3. For example, in a carrier aggregation scenario, an uplink carrier e is added to the PCell, and the uplink carrier e is configured with PUSCH resources, the terminal device triggers a PHR and reports the PHR to the access network device, and the PHR includes at least the uplink carrier. e Type1PH.

In the embodiment of the present application, the configuration change of the uplink carrier may include at least one of the following: the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured as the uplink carrier corresponding to the resource configured with the SRS only, and only the uplink carrier corresponding to the resource configured with the SRS is reconfigured. The uplink carrier corresponding to the resource configured with the SRS is reconfigured as the uplink carrier corresponding to the resource configured with the physical uplink shared channel.

Wherein, in the case of triggering the PHR, when the configuration of the uplink carrier changes, including: when the uplink carrier corresponding to the resource configured with the physical uplink shared channel is reconfigured as the uplink carrier corresponding to the resource configured with the SRS only, reporting to the receiver The PHR of the network access device includes at least: the PH of the uplink carrier whose configuration has changed under Type 3; when the configuration of the uplink carrier changes, it includes: only the uplink carrier corresponding to the SRS resource is configured to be reconfigured with the physical uplink shared channel. When there is an uplink carrier corresponding to the resource, the PHR reported to the access network device at least includes: the PH of the uplink carrier whose configuration has changed under type 1. For example, in a dual connectivity scenario, PUL 1 and SUL 2 are configured on the PSCell, and PUSCH resources are configured in PUL 1, when the PUSCH resources configured on the PUL 1 are reconfigured as SRS resources , the terminal device triggers PHR reporting, and reports the Type3PH at least including the PUL 1 to the access network device.

In the method for sending a power headroom report provided by this embodiment of the present application, a terminal device receives an uplink carrier configuration from an access network device, and the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell. When the uplink carrier configuration occurs When it changes, the terminal device triggers the PHR. In this way, by designing the trigger conditions that meet the SUL technology, the access network device can obtain an accurate PH reference, so that the network side can accurately allocate uplink resources to the terminal device, which improves the network side resources. Scheduling accuracy.

FIG. 10 is a flowchart of another method for sending a power headroom report according to an embodiment of the present application.

Referring to Figures 2 to 4, it can be obtained that, in the existing standard protocol, in the PHR in the ExtendedPHR format, the terminal equipment reports the Type2PH and Type1PH of the Pcell to the access network equipment, and reports the SCell's Type2PH and Type1PH in the ascending order of the cell index number. Type x (x=1 or 3) PH.

The difference between the PHR in the ExtendedPHR2 format and the PHR in the ExtendedPHR format is that the Type2PH of the Scell configured with the PUCCH is added after the Type2PH of the Pcell.

The difference between the PHR in the dual Connection PHR format and the PHR in the ExtendedPHR format is that the Type2PH of the PSCell is added after the Type2PH of the Pcell.

It can be obtained that, in the format of the PHR defined in the existing standard protocol, the PHR only specifies how to report the PH of one uplink carrier of each cell (it can be considered that the uplink carrier is the PUL of the cell). How to report the PH of the SUL of the cell when there are at least two uplink carriers (one PUL and at least one SUL). In order to meet the PH reporting requirement in the SUL technology (that is, to report the PH of at least one uplink carrier of a cell), an embodiment of the present application provides a method for sending a power headroom report. As shown in FIG. 10 , the method may include:

501. The access network device sends configuration information to the terminal device.

The configuration information may include an uplink carrier configuration, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell.

502. The terminal device receives configuration information from the access network device;

503. The terminal device sends the PHR to the access network device according to the configuration information.

After the terminal device receives the configuration information from the access network device, it can send the PHR to the access network device according to the configuration information.

For example, the terminal device may send the PHR to the access network device according to the received configuration information when it is determined that the trigger condition is satisfied. The PHR includes: PHs of at least two uplink carriers in at least one cell; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: one uplink carrier in at least one cell PH, and the MAC PDU sent by the terminal device includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported.

It should be noted that, in this embodiment of the present application, the trigger conditions may be the six conditions specified in the existing standard protocol, or the change of the uplink carrier configuration in the embodiment of the present application as shown in FIG. 9 may be used as the trigger condition , the embodiments of the present application are not limited herein.

It should also be noted that when the PHR includes the PHs of at least two uplink carriers in at least one cell, the content specifically included in the PHR may be the PHs of the first uplink carrier and the PHs of at least one second uplink carrier in at least one cell. PH, where the first uplink carrier may be PUL, and the second uplink carrier may be SUL. Or, the content specifically included in the PHR is the PH of the third uplink carrier and the PH of at least one fourth uplink carrier in at least one cell, the PH of the third uplink carrier is a PH calculated based on actual transmission, and the fourth uplink carrier The PH is the PH calculated based on the reference format. Or, the content specifically included in the PHR is the PH of the uplink carrier of the first priority and the PH of at least one uplink carrier of the second priority in at least one cell, the first priority is greater than the second priority, and each uplink carrier The priority can be notified by the access network device to the terminal device, or it can be pre-configured.

Wherein, when the PHR includes the PHs of at least two uplink carriers in at least one cell, the content specifically included in the PHR may be the PH of the third uplink carrier and the PH of at least one fourth uplink carrier in at least one cell. , taking the ExtendedPHR format as an example, as shown in FIG. 11 , in this solution, for each cell that needs to report the PH, the PH of the third uplink carrier is preferentially reported. In this way, other uplink carriers in the cell are all based on the reference format, so the V field shown in FIG. 11 is meaningless and can be used to indicate whether the uplink carrier is PUL. In addition, in the field used for reporting the PH of the fourth uplink carrier, the V field can be regarded as a reserved field, which can be used for other purposes to indicate the information that needs to be indicated.

When the network side or the terminal device side only needs to report the PH of one uplink carrier due to some reasons, the PHR may include the PH of one uplink carrier in at least one cell. The content specifically included in the PHR may be the PH of the first uplink carrier in at least one cell, for example, including the PH of the PUL in at least one cell. Alternatively, the content specifically included in the PHR is the PH of the third uplink carrier. Alternatively, the content specifically included in the PHR is the PH of the uplink carrier of the first priority in at least one cell.

Wherein, when the PHR includes the PHs of at least two uplink carriers in at least one cell, the format and content of the PHR can be redesigned so that the PHR can include the PHs of multiple uplink carriers in the cell where the terminal device wants to report the PH .

For ease of understanding, it is taken as an example that the PHs of multiple uplink carriers that the terminal device wants to report are one PUL PH and at least one SUL PH. For the PHRs in the ExtendedPHR format, the ExtendedPHR 2 format and the dual Connection PHR format, you can add the PH of each cell that reports the PH of the SUL to the PHR of each format, and arrange them in a preset order. These three existing formats are redefined.

Of course, three new PHR formats can also be redefined. For example, the PHR corresponding to the ExtendedPHR format is only the PHR with the added SUL as the ExtendedPHR 3 format, and the PHR corresponding to the ExtendedPHR 2 format is only different in that The PHR of the PH with SUL added is called the ExtendedPHR 4 format, and the only difference corresponding to the dual Connection PHR format is that the PHR of the PH with SUL added is called the dual Connection PHR 2 format.

It should be noted that, for the scenario of redefining three new PHR formats, the embodiment of the present application does not specifically limit the format names of the three new redefining PHR formats.

In addition, in the embodiment of the present application, the sequence of adding the PH of the SUL of each cell to report the SUL in the PHR of the existing format can be in the following two ways:

Mode 1: The PH of at least one SUL of the cell can be added after the PH of the PUL of each cell in all the cells that need to report the PH of the SUL in the order of the cells to form a new PHR format.

Mode 2: After all PUL PHs, the SUL PH of each cell in all cells that need to report the SUL PH can be added in the order of the cells to form a new PHR format.

For example, taking the ExtendedPHR format as an example, referring to (a) in FIG. 2 , and assuming that the PH of the SUL of the cell where the SUL is to be reported is added according to the above method 1, the new PHR format may be as shown in FIG. 12 . As can be seen from FIG. 12 , the difference from the ExtendedPHR format shown in (a) in FIG. 2 is that the PH of the SUL of each cell in all cells that need to report the PH of the SUL is added, such as PH (type X, Pcell , SUL 1), and PH (Type X, Pcell, PUL) is used to indicate the PH of the PUL of the cell. In addition, the PH of at least one SUL of the cell is added after the PH of the PUL of each cell in all the cells that need to report the PH of the SUL.

For example, taking the ExtendedPHR 2 format as an example, referring to (a) in FIG. 3 , and assuming that the PH of the SUL of the cell to report the SUL is added according to the above-mentioned method 2, the new PHR format may be as shown in FIG. 13 . As can be seen from FIG. 13 , the difference from the ExtendedPHR 2 format shown in (a) in FIG. 3 is that the PH of the SUL of each cell in all cells that need to report the PH of the SUL is added, such as PH (type X, Pcell, SUL 1), and PH (Type X, Pcell, PUL) is used to indicate the PH of the PUL of the cell. In addition, after all the PHs of the PULs, the PHs of the SULs of each cell in all the cells that need to report the PHs of the SULs are added in the order of the cells.

It should be noted that, in the example shown in FIG. 13 , the PUCCH of the PCell and the PUCCH SCell are both configured on the PUL. For the case where the PUCCH is configured on the SUL, it can be added to the same position. This embodiment of the present application No detailed description is given here. In addition, the PHs of the multiple uplink carriers that the terminal device wants to report are the PH of the third uplink carrier and the PH of at least one fourth uplink carrier, as well as the PH of the uplink carrier of the first priority and the PH of at least one of the second priority When redesigning the PH of the uplink carrier, the format and content of the PHR can be redesigned with reference to the description that the PHs of multiple uplink carriers that the terminal device wants to report are one PUL PH and at least one SUL PH. One more elaboration.

In addition, when the PH of one uplink carrier in at least one cell is included in the PHR, the terminal device can continue to use the PHRs in the ExtendedPHR format, the ExtendedPHR 2 format and the dual Connection PHR format in the existing standard protocol. In this way, the problem of resource waste caused by reporting the PHs of all uplink carriers together can be avoided.

In this embodiment of the present application, in order to distinguish whether the PHR reported by the terminal device includes the PHs of at least two uplink carriers in at least one cell, the terminal device may carry a PHR in the PHR or in the MAC PDU sent to the access network device. Indication information, where the indication information is used to indicate whether the PHs of at least two uplink carriers in at least one cell are reported. Wherein, when the indication information is the first value (equivalent to the first indication information in this application), it is used to indicate that the PH of one uplink carrier in at least one cell is reported. When the indication information is the second value (equivalent to the second indication information in this application), it is used to indicate that the PH of at least two uplink carriers in at least one cell is reported.

It should be noted that, as an alternative solution, when a new PHR format is defined, the indication information is also used to indicate the PHR format. In this way, it can also indicate whether the terminal equipment has reported at least one cell PH of at least two uplink carriers. For example, if the format of the indication information used to indicate the PHR is ExtendedPHR 3, it can indicate that the PH of at least two uplink carriers in at least one cell is reported. If the indication information is used to indicate that the format of the PHR is ExtendedPHR, it can indicate that at least The PH of an uplink carrier in a cell. Alternatively, the indication information can also be used to indicate whether the PH of the second uplink carrier is included, or whether the PH of the fourth uplink carrier is included, or whether the PH of the uplink carrier of the second priority is included, so as to indicate whether at least one cell is reported PH of at least two of the uplink carriers. The embodiments of the present application do not specifically limit the specific implementation manner for indicating whether the PH of at least two uplink carriers in at least one cell is reported.

The specific implementation of the indication information is illustrated below by taking the indication information to indicate whether the PHs of at least two uplink carriers in at least one cell are reported.

In some embodiments, the terminal device may carry the indication information in a MAC control element (Control Element, CE) of the PHR. Specifically, an indication bit (bit) may be added to the MAC CE of the PHR to indicate whether the PHR includes PHs of at least two uplink carriers in at least one cell. In specific implementation, the following three optional schemes and combinations of these three optional schemes can be included:

Option 1: 1 bit can be used to indicate whether the PH of at least two uplink carriers in the selected cell is reported in the PHR. Specifically, it can be indicated by a reserved bit (R) in a bitmap in the format of the PHR shown in FIGS. 2-4 and 11-13 .

Exemplary: R=0, which is used to indicate that each cell in all cells indicated by the bitmap that needs to report the PH only reports the PH of one uplink carrier. For example, R=0, which is used to indicate that each cell in all cells indicated by the bitmap that needs to report PH only reports the PH of the PUL in the cell, or only reports the PH of the third uplink carrier, or only reports the first priority. PH of the upstream carrier of the level.

Exemplary: R=1, which is used to indicate that each cell in all cells indicated by the bitmap that needs to report the PH has reported the PH of at least two uplink carriers. For example, R=1 is used to indicate that each cell in all cells indicated by the bitmap that needs to report PH reports the PH of the first uplink carrier and the PH of at least one second uplink carrier, where the first uplink carrier may be PUL, and the The second uplink carrier may be SUL. Alternatively, R=1 is used to indicate that each cell in all cells indicated by the bitmap that needs to report the PH has reported the PH of the third uplink carrier and the PH of at least one fourth uplink carrier. Alternatively, R=1 is used to indicate that each cell in all cells indicated by the bitmap that needs to report the PH reports the PH of the uplink carrier of the first priority and the PH of at least one uplink carrier of the second priority.

Option 2: A Bitmap can be added to the PHR formats shown in Figures 2-4 and 11-13 to indicate which cells have reported the PH of at least two uplink carriers and which cells have reported one uplink carrier PH.

Among them, the number of the correspondingly configured cells is different, and the number of bits of the newly added Bitmap is also different. For example, a new 8-bit or 32-bit Bitmap can be added after the existing Bitmap, or a new 8-bit or 32-bit Bitmap can be added after the PH of all PULs in the existing format to indicate which cells have reported PHs of at least two uplink carriers, and which cells report the PH of one uplink carrier. For example, if the value of a bit in the Bitmap is 1, it is used to indicate that the cell corresponding to the bit has reported the PH of at least two uplink carriers; if the value of a bit in the Bitmap is 0, it is used to indicate the cell corresponding to the bit. The PH of an uplink carrier is reported.

It should be noted that, in the embodiment of the present application, there is no specific limitation on the specific position of the newly added Bitmap in the PHR.

Option 3: For the case where the high-priority uplink carrier reported in the cell (eg, the first uplink carrier (such as PUL), or the uplink carrier of the first priority) is based on actual transmission, you can use Figure 2-Figure 4 and the reserved bits in the bytes used to indicate the maximum transmit power of the cell corresponding to the uplink carrier reported with the high priority in the PHR format shown in Figures 11-13 to indicate whether the cell has reported at least two PH of the upstream carrier.

In this case, considering that the uplink carrier reported with low priority is based on the H of the reference format, and the byte corresponding to the fourth uplink carrier that is used to indicate the maximum transmit power of the cell does not exist, at this time, it can be The V field is reused to indicate whether the uplink carrier is a SUL carrier.

In addition, for the case where the high-priority uplink carrier reported by a cell in option 3 is based on the reference format, it cannot be indicated by the reserved bit in the byte used to indicate the maximum transmit power of the cell. In this case, It may be specified to report only the PH of the high-priority uplink carrier in the cell (eg, the first uplink carrier, or the uplink carrier of the first priority), or to report the PH of all uplink carriers in the cell. This solution can be applied to scenarios where uplink resources are insufficient to report the PH values of all or multiple uplink carriers, so that the terminal equipment side can inform the access network equipment through indication bits that the PHR reported this time only includes high priority PH of part of the upstream carrier of the stage.

In other embodiments, the terminal device can carry the indication information in the MAC PDU. Exemplarily, the indication information may be carried in a sub-header (sub-header) of the MAC PDU. For example, a different LCID from the existing value may be used to indicate whether the PHs of at least two uplink carriers in at least one cell are reported.

504. The access network device receives the PHR from the terminal device.

Wherein, after the access network device receives the PHR from the terminal device, when uplink resource allocation needs to be performed, it may refer to the received PHR for allocation. For example, when the PHR includes the PHs of at least two uplink carriers in at least one cell, the access network device may allocate uplink resources to the terminal device according to the PHs of each uplink carrier in each cell in the at least one cell.

Further, in this embodiment of the present application, the access network device may use the control field to indicate whether the terminal device reports the PH of at least two uplink carriers in at least one cell, or to indicate the format of the PHR to be reported.

In some embodiments, the indication may be included in configuration information (eg, RRC configuration signaling). For example, the configuration information described in step 501 in this embodiment of the present application may include third indication information. Of course, the third indication information may not be included in the configuration information described in 501, but is sent by the network device to the terminal device through other information, which is not specifically limited in this embodiment of the present application.

Wherein, the third indication information may be used to indicate whether the terminal equipment reports the PH of at least two uplink carriers in at least one cell.

As an alternative solution, the third indication information can also be used to indicate whether to include the PH of the second uplink carrier, or whether to include the PH of the fourth uplink carrier, or whether to include the PH of the second priority uplink carrier, In order to indicate whether the PH of at least two uplink carriers in at least one cell is reported. The embodiments of the present application do not specifically limit the specific implementation manner for indicating whether the PH of at least two uplink carriers in at least one cell is reported. For example, a field may be added in the RRC configuration signaling to indicate whether the PH of the uplink carrier of the second priority is being reported, or to indicate whether to report the PH of the SUL.

In addition, during specific implementation, the third indication information may also specifically indicate which cells of the terminal equipment need to report the PH of at least two uplink carriers, or be used to specifically indicate which cells of the terminal equipment do not need to report at least two uplink carriers ( For example, the PH of one PUL and at least one SUL), that is, the PH of only one uplink carrier (eg, PUL) is reported. Alternatively, the third indication information may specifically indicate which cells of the terminal device need to specifically report the PHs of n uplink carriers, where n is an integer greater than 1.

Alternatively, the third indication information is used to indicate the format of the PHR. When the format of the PHR is the first format, the PHR includes the PHs of at least two uplink carriers in at least one cell, and when the format of the PHR is the second format, the PHR includes at least The PH of an uplink carrier in a cell. The first format may be ExtendedPHR 3 format, ExtendedPHR 4 format or dualConnection PHR 2 format, and the second format may be ExtendedPHR format, ExtendedPHR 2 format and dualConnection PHR format. For example, the new PHR format includes ExtendedPHR 3 and ExtendedPHR 4, which can be indicated in the control field of the RRC configuration signaling, such as PHR-Config:

PHR-Config information element

extendedPHR3 BOOLEAN OPTIONAL,--Need ON

extendedPHR4 BOOLEAN OPTIONAL,--Need ON

Of course, in the case that the access network device indicates whether to report the PH of at least two uplink carriers in at least one cell, when reporting the PHR, the terminal device may not need to add indication information to indicate whether it has reported the PH in at least one cell. PH of at least two upstream carriers. The embodiments of the present application are not specifically limited herein.

In the method for sending a power headroom report provided by this embodiment of the present application, a terminal device receives configuration information from an access network device, and sends a PHR to the access network device according to the configuration information; wherein the PHR includes: at least two of the at least one cell PH of one uplink carrier; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the PHR includes: the PH of one uplink carrier in at least one cell, and the terminal device receives the PH of one uplink carrier in at least one cell The MAC PDU includes first indication information; the first indication information is used to indicate that the PH of one uplink carrier in at least one cell is reported, so that by reporting the PH of at least two uplink carriers in at least one cell, or at least one The PH and indication information of an uplink carrier in the cell enable the network side to obtain an accurate PH reference, so that the network side can accurately allocate uplink resources to the terminal equipment and improve the accuracy of resource scheduling on the network side.

The embodiment of the present application also provides a PHR in a new format, where the PHR in the format includes: a field for indicating the PH of at least two uplink carriers in the cell.

Further, the PHR in this format further includes: a bitmap, where the bitmap is used to indicate that the first cell reports the PH of at least two uplink carriers, and the second cell reports the PH of one uplink carrier. The number of bits of the bitmap is 8bit or 32bit.

Assume that if the value of a bit in the Bitmap is 1, it is used to indicate that the cell corresponding to this bit has reported the PH of at least two uplink carriers. If the value of a bit in the Bitmap is 0, it is used to indicate that the cell corresponding to this bit has reported the PH. PH of an upstream carrier. For example, the bitmap has a total of 8 bits, which is 11001100, which is used to indicate that the cell with index C7, index C6, index C3, and index C2 reports the PH of at least two uplink carriers, and the index is C5, the index is C4, The cell with index C1 reports the PH of an uplink carrier, and the last bit is a reserved bit. It should be noted that, in this embodiment of the present application, there is no specific limitation on the specific position of the Bitmap in the PHR.

It should be noted that the various embodiments of the present application may be independent of each other, or may be combined at will, and the embodiments of the present application are not specifically limited herein.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, in order to implement the above-mentioned functions, each network element, such as a terminal device and an access network device, includes a corresponding hardware structure and/or software module for performing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or in the form of a combination of hardware and computer software, in conjunction with the algorithm steps of the examples described in the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the terminal device and the access network device may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

In the case where each functional module is divided according to each function, FIG. 14 shows a possible schematic diagram of the composition of the terminal device involved in the above embodiment. As shown in FIG. 14 , the terminal device may include: a receiving unit 61 and a Trigger unit 62 .

The receiving unit 61 is configured to support the terminal device to perform step 402 in the method for sending a power headroom report shown in FIG. 9 .

The triggering unit 62 is configured to support the terminal device to perform step 403 in the method for sending a power headroom report shown in FIG. 9 .

It should be noted that, all relevant contents of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

The terminal device provided in the embodiment of the present application is used to execute the above method for sending a power headroom report, and thus can achieve the same effect as the above method for sending a power headroom report.

In the case where each functional module is divided according to each function, FIG. 15 shows a possible schematic diagram of the composition of the terminal device involved in the above embodiment. As shown in FIG. 15 , the terminal device may include: a receiving unit 71 and a sending unit 72.

The receiving unit 71 is configured to support the terminal device to perform step 502 in the method for sending a power headroom report shown in FIG. 10 .

The sending unit 72 is configured to support the terminal device to perform step 503 in the method for sending a power headroom report shown in FIG. 10 .

It should be noted that, all relevant contents of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

The terminal device provided in the embodiment of the present application is used to execute the above method for sending a power headroom report, and thus can achieve the same effect as the above method for sending a power headroom report.

In the case of using an integrated unit, FIG. 16 shows another possible schematic composition diagram of the terminal device involved in the above embodiment. As shown in FIG. 16 , the terminal device may include: a processing module 81 and a communication module 82 .

The processing module 81 is used to control and manage the actions of the terminal device and/or other processes for the techniques described herein. For example, the processing module 81 is configured to support the terminal device to perform step 403 in the method for sending a power headroom report shown in FIG. 9 . The communication module 82 is used to support the communication between the terminal device and other network entities, for example, the communication with the functional modules or network entities shown in FIG. 6 or FIG. 7 . Specifically, for example, the communication module 82 is configured to support the terminal device to perform step 402 in the power headroom report sending method shown in FIG. 9 and/or support the terminal device to perform step 502 in the power headroom report sending method shown in FIG. 10 . , step 503 . The terminal device may further include a storage module 83 for storing program codes and data of the terminal device.

The processing module 81 may be a processor or a controller. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. A processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 82 may be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 83 may be a memory.

When the processing module 81 is a processor, the communication module 82 is a transceiver, and the storage module 83 is a memory, the terminal device involved in the embodiment of the present application may be the terminal device shown in FIG. 8 .

In the case where each functional module is divided according to each function, FIG. 17 shows a possible schematic diagram of the composition of the access network equipment involved in the above embodiment. As shown in FIG. 17 , the access network equipment may include: Sending unit 91 and receiving unit 92.

The sending unit 91 is configured to support the access network device to perform step 401 in the method for sending a power headroom report shown in FIG. 9 .

The receiving unit 92 is configured to support the access network device to perform step 404 in the method for sending a power headroom report shown in FIG. 9 .

It should be noted that, all relevant contents of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

The access network device provided in the embodiment of the present application is configured to execute the above-mentioned method for sending a power headroom report, and thus can achieve the same effect as the above-mentioned method for sending a power headroom report.

In the case where each functional module is divided according to each function, FIG. 18 shows a possible schematic diagram of the composition of the access network equipment involved in the above embodiment. As shown in FIG. 18 , the access network equipment may include: Sending unit 1001 and receiving unit 1002.

The sending unit 1001 is configured to support the access network device to perform step 501 in the method for sending a power headroom report shown in FIG. 10 .

The receiving unit 1002 is configured to support the access network device to perform step 504 in the method for sending a power headroom report shown in FIG. 10 .

It should be noted that, all relevant contents of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

The access network device provided in the embodiment of the present application is configured to execute the above-mentioned method for sending a power headroom report, and thus can achieve the same effect as the above-mentioned method for sending a power headroom report.

In the case of using an integrated unit, FIG. 19 shows another possible schematic composition diagram of the access network device involved in the above embodiment. As shown in FIG. 19 , the access network device may include: a processing module 1101 and a communication module 1102 .

The processing module 1101 is used to control and manage the actions of the access network devices and/or other processes for the techniques described herein. The communication module 1102 is used to support the communication between the access network device and other network entities, for example, the communication with the functional modules or network entities shown in FIG. 6 or FIG. 8 . Specifically, for example, the communication module 1102 is configured to support the access device to perform steps 401 and 404 in the power headroom report sending method shown in FIG. 9 and/or support the terminal device to perform the power headroom report sending method shown in FIG. 10 . Step 501 and Step 504 in . The access network device may further include a storage module 1103 for storing program codes and data of the access network device.

The processing module 1101 may be a processor or a controller. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. A processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 1102 may be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 1103 may be a memory.

When the processing module 1101 is a processor, the communication module 1102 is a transceiver, and the storage module 1103 is a memory, the terminal device involved in this embodiment of the present application may be the access network device shown in FIG. 7 .

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or may be distributed to multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, which are stored in a storage medium , including several instructions to make a device (may be a single chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. . Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (13)

1. A method for sending a power headroom report, comprising: The terminal device receives configuration information from the access network device; sending, by the terminal device, a power headroom report PHR to the access network device according to the configuration information; Wherein, the PHR includes: the power headroom PH of at least two uplink carriers in at least one cell; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the The PHR includes: the PH of one uplink carrier in at least one cell, and the medium access control MAC protocol data unit PDU sent by the terminal device includes the first indication information; the first indication information is used to indicate that at least PH of an uplink carrier in a cell; when the PHR includes the PHs of at least two uplink carriers in at least one cell, The PHR further includes: second indication information, where the second indication information is used to indicate that PHs of at least two uplink carriers in at least one cell are reported. 2. The method according to claim 1, wherein the PHR comprises PHs of at least two uplink carriers in at least one cell, comprising: The PHR includes: a PH of a first uplink carrier and a PH of at least one second uplink carrier in at least one cell; or, The PHR includes: a PH of a third uplink carrier in at least one cell and a PH of at least one fourth uplink carrier, the PH of the third uplink carrier is a PH calculated based on actual transmission, and the PH of the fourth uplink carrier is PH calculated based on the reference format. 3. The method according to any one of claims 1-2, wherein the configuration information comprises: an uplink carrier configuration, wherein the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell . 4. The method according to any one of claims 1-2, wherein the configuration information comprises third indication information; Wherein, the third indication information is used to indicate whether the terminal equipment reports the PH of at least two uplink carriers in at least one cell; or, The third indication information is used to indicate the format of the PHR. When the format of the PHR is the first format, the PHR includes the PHs of at least two uplink carriers in at least one cell, and the format of the PHR is the first format. In the second format, the PHR includes the PH of one uplink carrier in at least one cell. 5. A method for sending a power headroom report, comprising: The access network device sends configuration information to the terminal device; receiving, by the access network device, a power headroom report PHR from the terminal device; Wherein, the PHR includes: the power headroom PH of at least two uplink carriers in at least one cell; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the The PHR includes: the PH of one uplink carrier in at least one cell, and the medium access control MAC protocol data unit PDU received by the access network device includes the first indication information; the first indication information is used to indicate The PH of one uplink carrier in at least one cell is reported; when the PHR includes the PHs of at least two uplink carriers in at least one cell, The PHR further includes: second indication information, where the second indication information is used to indicate that PHs of at least two uplink carriers in at least one cell are reported. 6. The method according to claim 5, wherein the PHR comprises PHs of at least two uplink carriers in at least one cell, comprising: The PHR includes: a PH of a first uplink carrier and a PH of at least one second uplink carrier in at least one cell; or, The PHR includes: a PH of a third uplink carrier in at least one cell and a PH of at least one fourth uplink carrier, the PH of the third uplink carrier is a PH calculated based on actual transmission, and the PH of the fourth uplink carrier is PH calculated based on the reference format. 7. The method according to any one of claims 5-6, characterized in that, The configuration information includes: uplink carrier configuration, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell. 8. A terminal device, comprising: a receiving unit, configured to receive configuration information from an access network device; a sending unit, configured to send a power headroom report PHR to the access network device according to the configuration information received by the receiving unit; Wherein, the PHR includes: the power headroom PH of at least two uplink carriers in at least one cell; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the The PHR includes: the PH of one uplink carrier in at least one cell, and the medium access control MAC protocol data unit PDU sent by the terminal device includes the first indication information; the first indication information is used to indicate that at least PH of an uplink carrier in a cell; when the PHR includes the PHs of at least two uplink carriers in at least one cell, The PHR further includes: second indication information, where the second indication information is used to indicate that PHs of at least two uplink carriers in at least one cell are reported. 9. The terminal device according to claim 8, wherein the PHR comprises PHs of at least two uplink carriers in at least one cell, comprising: The PHR includes: a PH of a first uplink carrier and a PH of at least one second uplink carrier in at least one cell; or, The PHR includes: a PH of a third uplink carrier in at least one cell and a PH of at least one fourth uplink carrier, the PH of the third uplink carrier is a PH calculated based on actual transmission, and the PH of the fourth uplink carrier is PH calculated based on the reference format. 10. The terminal device according to any one of claims 8-9, wherein the configuration information comprises: an uplink carrier configuration, wherein the uplink carrier configuration is used to indicate at least two uplink carriers in at least one cell. configuration. 11. An access network device, comprising: a sending unit, configured to send configuration information to the terminal device; a receiving unit, configured to receive a power headroom report PHR from the terminal device; Wherein, the PHR includes: the power headroom PH of at least two uplink carriers in at least one cell; or, the PHR includes: the PH of one uplink carrier in at least one cell and the first indication information; or, the The PHR includes: the PH of one uplink carrier in at least one cell, and the medium access control MAC protocol data unit PDU received by the access network device includes the first indication information; the first indication information is used to indicate The PH of one uplink carrier in at least one cell is reported; when the PHR includes the PHs of at least two uplink carriers in at least one cell, The PHR further includes: second indication information, where the second indication information is used to indicate that PHs of at least two uplink carriers in at least one cell are reported. 12. The access network device according to claim 11, wherein the PHR comprises PHs of at least two uplink carriers in at least one cell, comprising: The PHR includes: a PH of a first uplink carrier and a PH of at least one second uplink carrier in at least one cell; or, The PHR includes: a PH of a third uplink carrier in at least one cell and a PH of at least one fourth uplink carrier, the PH of the third uplink carrier is a PH calculated based on actual transmission, and the PH of the fourth uplink carrier is PH calculated based on the reference format. 13. The access network device according to any one of claims 11-12, wherein, The configuration information includes: uplink carrier configuration, where the uplink carrier configuration is used to indicate the configuration of at least two uplink carriers in at least one cell.

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