WO2019242670A1

WO2019242670A1 - Communication method, communication device, network device and communication system

Info

Publication number: WO2019242670A1
Application number: PCT/CN2019/092013
Authority: WO
Inventors: 许斌; 曹振臻; 徐海博; 柴丽
Original assignee: 华为技术有限公司
Priority date: 2018-06-21
Filing date: 2019-06-20
Publication date: 2019-12-26
Also published as: CN110636626A; CN110636626B

Abstract

Provided in the present application are a communication method, a communication device, a network device and a communication system. The method comprises: triggering a power headroom report (PHR) of a communication device; after a first uplink granted resource for transmitting the PHR is determined and before the PHR is transmitted, the communication device determining, at a first moment, a PH value type carried in the PHR, wherein the first moment comprises a moment when the communication device starts a logical channel priority (LCP) process based on the first uplink granted resource or a moment when a medium access control protocol data unit (MAC PDU) starts to be assembled, and the MAC PDU includes the PHR and is transmitted on the first uplink granted resource; and the communication device sending the PHR to a network device. The communication method provided in the embodiments of the present application can improve the PHR transmission accuracy of the communication device.

Description

Communication method, communication equipment, network equipment and communication system

This application claims priority from a Chinese patent application filed on June 21, 2018 with the Chinese Patent Office, application number 201810646138.7, and application name "Communication Method, Communication Equipment, and Network Equipment", the entire contents of which are incorporated herein by reference. in.

Technical field

The present application relates to the field of communications, and more particularly, to a communication method, a communication device, a network device, and a communication system.

Background technique

A power headroom report (power headroom reporting, PHR) reports to a network device the difference between the maximum transmission power of the communication device and the estimated uplink transmission power of the communication device. The power headroom information reported by the communication device can provide an important reference for the network device to perform uplink scheduling on the communication device.

In the prior art, the power headroom PH value carried in the PHR transmitted by the communication device may be a real type or a virtual type, but the accuracy of determining the PH value type in the existing methods for transmitting power headroom reports is low. . Therefore, how to more accurately determine the type of PH value carried in the PHR transmitted by the communication device and improve the accuracy of the PHR transmitted by the communication device has become an urgent problem.

Summary of the Invention

The application provides a communication method, a communication device, a network device, and a communication system, which can improve the accuracy of the PHR transmitted by the communication device.

According to a first aspect, a communication method is provided, including: a power headroom report PHR of a communication device is triggered; the communication device determines a first uplink authorized resource for transmitting the PHR; and the communication device at a first moment Determining a power headroom PH value type carried in the PHR, wherein the first time includes a time when the communication device starts a logical channel priority LCP process based on the first uplink authorized resource or starts to assemble a medium access control protocol The time of the data unit (media access control protocol data unit, MAC PDU), the MAC PDU includes the PHR and is transmitted on the first uplink authorized resource.

According to the communication method provided in the embodiment of the present application, a first uplink authorized resource for transmitting a PHR is first determined, at a time when a communication device starts a logical channel priority LCP process based on the first uplink authorized resource, or the communication device is based on the When the first uplink authorized resource starts to assemble the MAC data PDU of the protocol data, determining the type of the PH value carried in the transmitted PHR can improve the accuracy of determining the type of PH in the PHR, and further improve the accuracy of the PHR transmitted by the communication device.

It should be understood that the foregoing first uplink grant resource in this application may also be referred to as a first uplink grant (UL grant). That is, the uplink grant indicates an uplink grant resource. In the following, the first uplink authorized resource may be referred to as a first UL grant and the uplink authorized resource may be referred to as a UL grant.

It should be understood that the foregoing communication method can be applied in a single carrier scenario and a carrier aggregation scenario.

For example, in a single-carrier scenario, when the cell supports PUCCH transmission, the PH type is determined according to this method.

For another example, in a carrier aggregation scenario, the PH value types of multiple cells are determined according to the method.

It should be understood that the above cell is a cell in an activated state.

With reference to the first aspect, in an implementation manner of the first aspect, the determining, by the communication device at a first moment, a type of PH value carried in the PHR includes: the communication device is based on before the first moment, and Including whether the DCI for scheduling UL grant downlink control information is received within the first moment of time, and / or, whether the communication device includes non-dynamics within the transmission time period where the first UL grant is located In the scheduled uplink transmission, the PH value type of the first cell carried in the PHR is determined at the first moment.

According to the communication method provided in the embodiment of the present application, whether the downlink control information is received before the first time and including the time of the first time, and whether the transmission time period including the first UL grant includes non- The dynamically scheduled uplink transmission, as a reference factor for determining the type of PH value carried in the PHR, can improve the accuracy of determining the type of PH value carried in the PHR.

Further, the above downlink control information is downlink control information specifically used for scheduling UL grants;

Optionally, in some embodiments, whether the foregoing includes non-dynamically scheduled uplink transmission in the transmission time period in which the first UL grant is located, including: whether there is data in the above configuration in the transmission time period in which the first UL grant is located Transmission on uplink resources.

Further, the above-mentioned configured uplink resources (configured uplink grants) refer to periodically configured uplink resources that are configured in advance, including, but not limited to, configured resource type 1 configured grant type 1 and configured resource type 2 configured grant type 2 and can also be referred to as free Grant (free) resources or semi-persistent scheduling (SPS) resources

Optionally, in other embodiments, whether the foregoing includes non-dynamically scheduled uplink transmission in a transmission time period in which the first UL grant is located, including: whether there is channel detection in the transmission time period in which the first UL grant is located. Reference signal SRS transmission.

Optionally, in other embodiments, whether the foregoing includes non-dynamically scheduled uplink transmission in the transmission time period where the first UL grant is located, including: whether there is a physical uplink in the transmission time period where the first UL grant is located. Control channel PUCCH transmission.

In addition, the non-dynamically scheduled uplink transmission refers to dynamic scheduling that is not performed by a network device to issue a DCI allocation UL grant, and includes but is not limited to the above-mentioned uplink transmission methods.

With reference to the first aspect and the foregoing implementation manners thereof, in another implementation manner of the first aspect, the method further includes: the communication device determines that the size of the first UL grant can accommodate the size of the PHR.

According to the communication method provided in the embodiment of the present application, by enabling the communication device to determine the size of the first UL grant used to transmit the PHR to accommodate the size of the PHR, the accuracy of transmitting the PHR can be improved.

With reference to the first aspect and the foregoing implementation manners thereof, in another implementation manner of the first aspect, the method further includes: the communication device receives instruction information, and the instruction information is used to indicate whether the communication device reports a cell Type 2 PH, wherein the cell is a secondary cell PUCCH SCell supporting a physical uplink control channel under a new air interface NR base station.

According to the communication method provided in the embodiment of the present application, by causing the communication device to determine whether to report the PH of the Type 2 of the PUCCH under the NR base station according to the instruction information, it is possible to prevent the communication device from reporting the PH of the Type 2 of the PUCCH under the NR base station to an error.

Optionally, in some embodiments, the PUCCH SCell under the NR base station includes: when the communication device is configured with a new air interface-long-term evolution dual connection NR-LTE DC, or a long-term evolution-new air interface dual connection LTE-NR DC. PUCCH and SCell under the NR base station.

Optionally, in other embodiments, the PUCCH SCell under the NR base station includes: when the communication device is not configured with a DC, or the communication device is configured with a new air interface-new air interface dual connection NR-NR DC, PUCCH and SCell under the NR base station.

It should be understood that the PH of Type 2 above is the PH of a cell supporting PUCCH transmission.

With reference to the first aspect and the foregoing implementation manners thereof, in another implementation manner of the first aspect, the indication information includes: PH type information and / or cell information, where the cell information includes cell type information, and / or , The cell is the cell indication information of the NR side or the LTE side.

According to the communication method provided in the embodiment of the present application, by making the indication information include type information of PH and / or cell information, it is possible to obtain type information and / or cell information of PH according to the indication information.

With reference to the first aspect and the foregoing implementation manners, in another implementation manner of the first aspect, the format of the PHR includes: a Type 2 PH field, where the Type 2 PH field is used to report the cell, and is not used to report PH of a Type 2 cell other than the cell.

According to the communication method provided in the embodiment of the present application, by modifying the format of the PHR reported by the communication device, it is possible to reserve space for information transmission when a Type 2 PH is reported.

It should be understood that when the PH value type of the Type 2 PH of the PUCCH Scell under the NR base station is a real type, the PHR format may further include P _{CMAX, f, c} fields corresponding to the Type 2 PH domains; when all When the PH type of the PH of Type 2 of the PUCCH Scell under the NR base station is a virtual type, the PHR format may not include the P _{CMAX, f, c} fields corresponding to the Type 2 PH domain.

It should also be understood that the Type 2 PH field described above is used to report the PUCCH Scell under the NR base station, and is not used to report the Type 2 PH of the cell other than the PUCCH Scell under the NR base station. The PH field of the first Type2 may report the PH of Type 2 of the PUCCH and Scell under the NR base station, or the PH of Type 2 of the PUCCH and Scell under the non-NR base station may be modified to only report the PH of Type 2 of the PUCCH and Scell under the non-NR base station In addition, the above-mentioned Type 2 PH field is added to the PHR format only for reporting the PH of Type 2 of the PUCCH and Scell under the NR base station, and does not report the Type 2 PH of the PUCCH and Scell of the non-NR base station.

With reference to the first aspect and the foregoing implementation manners thereof, in another implementation manner of the first aspect, the method further includes: the communication device generates the PHR format according to a preset rule, wherein the PHR format is Carry a bitmap bitmap, which is used to indicate a first mapping relationship between the PH carried in the PHR and a plurality of activated BWPs.

According to the communication method provided in the embodiment of the present application, a bitmap is carried in a PHR format reported by a communication device, where the bitmap is used to indicate a first mapping relationship between a PH carried in the PHR and a plurality of BWPs, and PH reporting can be completed based on BWP granularity.

With reference to the first aspect and the foregoing implementation manners of the first aspect, in another implementation manner of the first aspect, the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.

According to the communication method provided in the embodiment of the present application, by causing a bitmap to indicate a cell where the BWP is located, it is possible to associate the BWP with the cell.

With reference to the first aspect and the foregoing implementation manners, in another implementation manner of the first aspect, the method further includes: when the cell is a special cell SpCell or a secondary cell PUCCH SCell supporting a physical uplink control channel, and the cell When at least one BWP of multiple activated BWPs supports PUCCH transmission, the first mapping relationship includes: a mapping relationship between the at least one BWP and at least one Type 2 PH, and multiple activated BWPs with multiple Type 1 or Type 3 Mapping relationship of PH; when the cell is a cell other than the SpCell and the PUCCH SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes: the at least one Mapping relationship between BWP and at least one Type1 or Type3 PH.

According to the communication method provided in the embodiment of the present application, based on different cells, different types of PH carried in the PHR transmitted by the communication device correspond to different BWPs.

According to a second aspect, a communication method is provided, including: receiving, by a communication device, indication information that is used to indicate whether the communication device reports a Type 2 PH of a cell, where the cell is a new air interface The secondary cell PUCCH SCell supporting the physical uplink control channel under the NR base station.

According to the communication method provided in the embodiment of the present application, by causing the communication device to determine whether to report the PH of the Type 2 of the PUCCH under the NR base station according to the instruction information, it is possible to prevent the communication device from reporting an error of the type 2 of the PUCCH of the NR base station.

With reference to the second aspect, in an implementation manner of the second aspect, the indication information includes: PH type information and / or cell information, where the cell information includes cell type information, and / or, the cell is an NR side or Cell indication information on the LTE side.

With reference to the second aspect and the foregoing implementation manners thereof, in another implementation manner of the second aspect, the format of the PHR includes: a Type 2 PH field, where the Type 2 PH field is used to report the cell, and is not used to report PH of a Type 2 cell other than the cell.

It should also be understood that the Type 2 PH field described above is used to report the PUCCH Scell under the NR base station, and is not used to report the Type 2 PH of the cell other than the PUCCH Scell under the NR base station. The PH field of the first Type2 may report the PH of Type 2 of the PUCCH and Scell under the NR base station, or the PH of Type 2 of the PUCCH and Scell under the non-NR base station may be modified to only report the PH of Type 2 of the PUCCH and Scell under the non-NR base station. In addition, the above-mentioned Type 2 PH field is added to the PHR format only for reporting the PH of Type 2 of the PUCCH and Scell under the NR base station, and does not report the Type 2 PH of the PUCCH and Scell of the non-NR base station.

According to a third aspect, a communication method is provided, including: a communication device generates a power headroom report PHR format according to a preset rule, wherein the PHR carries a bitmap bitmap, and the bitmap is used to indicate that the PHR carries The first mapping relationship between PH and multiple activated BWP.

Specifically, the first mapping relationship may be used to indicate a mapping relationship between each bit in the bitmap and the BWP, and a value of each bit may indicate whether a corresponding BWP is in an activated state.

If the BWP is in the activated state, the communication device reports the corresponding PH for the activated BWP; if the BWP is in the inactive state, the communication device does not report the PH for the BWP in the inactive state.

As an example: when a bit value of the above bitmap is "1", it means that the corresponding BWP is in an active state; when a bit value of the bitmap is "0", it means that the corresponding BWP is in an inactive state.

With reference to the third aspect, in an implementation manner of the third aspect, the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.

The second mapping relationship means that each cell corresponds to one bit in a bitmap. A specific cell may include multiple BWPs, and several BWPs may be activated simultaneously. When a bit of the bitmap indicates that the cell is in an activated state, The other bits of the bitmap further indicate the status of each BWP in the cell to determine whether the communication device reports the PH for the BWP.

With reference to the third aspect and the foregoing implementation manners, in another implementation manner of the third aspect, the method further includes: when the cell is a special cell SpCell or a secondary cell PUCCH SCell supporting a physical uplink control channel, and the cell When at least one BWP of multiple activated BWPs supports PUCCH transmission, the first mapping relationship includes: a mapping relationship between the at least one BWP and at least one Type 2 PH, and multiple activated BWPs with multiple Type 1 or Type 3 Mapping relationship of PH; when the cell is a cell other than the SpCell and the PUCCH SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes: the at least one Mapping relationship between BWP and at least one Type1 or Type3 PH.

According to a fourth aspect, a communication method is provided, including: whether the communication device receives downlink control information DCI for scheduling UL grant according to whether the communication device is before the first time and including the time of the first time. , And / or, the communication device determines, at a first moment, a type of a PH value carried in the PHR according to whether a non-dynamically scheduled uplink transmission is included in a transmission time period in which the first UL grant is located.

The first time may be the first time in the first aspect described above; the first time may also be the time when the communication device determines the type of PH value carried in the PHR in the prior art; the first time is also It may be the time when the communication device specified in the subsequent protocol determines the type of the PH value carried in the PHR. This embodiment does not limit the first time.

The first UL grant may be the first UL grant in the first aspect described above; the first UL grant may also be a UL grant that a communication device uses to transmit PHR in the prior art; the first UL grant also It may be a UL grant granted by a communication device for transmission of PHR in a subsequent protocol. This embodiment does not limit the first UL grant.

Further, the above-mentioned configured uplink resources (configured uplink grants) refer to periodically configured uplink resources that are configured in advance, including, but not limited to, configured resource type 1 configured grant type 1 and configured resource type 2 configured grant type 2 and can also be referred to as free Grant resources free and semi-persistent scheduling (SPS) resources

In addition, the non-dynamically scheduled uplink transmission refers to the dynamic scheduling that is not performed by the base station to send a DCI to allocate a UL grant, including, but not limited to, the above-mentioned uplink transmission methods.

With reference to the fourth aspect and the foregoing implementation manners thereof, in another implementation manner of the fourth aspect, the method further includes: the communication device determines that the size of the first UL grant can accommodate the size of the PHR.

According to a fifth aspect, a communication method is provided, which includes: a communication device determines a value of X according to the first instruction information, and compares a service of a common control channel included in a MAC PDU carried in an Msg3 message in a random access process of the communication device. Whether the size of the data unit CCCH SDU is equal to the value of X, determines whether the MAC subheader included in the MAC PDU carries an L field, where the L field is used to determine the size of the CCCH SDU, and X is a positive integer .

According to the communication method provided in the embodiment of the present application, by causing the communication device to determine the value of X according to the first instruction information, it is further determined whether the MAC subheader carries the L field by comparing whether the size of the CCCH and the X value are equal to each other. If the size of the SDU is equal to the value of X, choose whether to carry the L field.

Optionally, the first instruction information is the first instruction information sent by the communication device and received by the network device.

Optionally, the first instruction information is first instruction information that the communication device does not receive from the network device.

With reference to the fifth aspect, in an implementation manner of the fifth aspect, determining the value of X by the communication device according to the first instruction information includes: determining, by the communication device, the minimum uplink authorized resource of the Msg3 message according to the first instruction information. The size of the UL grant is determined according to the value of the minimum UL grant.

Optionally, in some embodiments, the communication device determines the value of X according to the first instruction information:

When the communication device receives the first instruction information, the communication device determines that the value of X is 64;

When the communication device does not receive the first indication information, the communication device determines that the value of X is 48;

When the communication device does not receive the second instruction information, the communication device determines that the value of X is 48;

Optionally, in other embodiments, the communication device determines the value of X according to the first instruction information:

When the communication device determines that the minimum UL grant size is 56 according to the first instruction information, then X = 54-8 = 48;

When the communication device determines that the minimum UL grant size is 72 according to the first instruction information, then X = 72-8 = 64.

According to the communication method provided in the embodiment of the present application, by making the first indication information indicate the size of the minimum uplink grant UL grant for the Msg3 message, the communication device can determine the size of the minimum uplink grant UL grant according to the first indication information, and then determine The value of X determines whether the MAC subheader included in the MAC PDU carries the L field according to whether the CCCH SDU is equal to the value of X.

With reference to the fifth aspect and the foregoing implementation manners thereof, in another implementation manner of the fifth aspect, the determining whether the MAC subheader included in the MAC PDU carries an L domain includes:

The communication device determines the value of X according to the size of the minimum uplink grant UL grant, and determines whether the MAC subheader included in the MAC PDU carries the L domain according to whether the CCCH SDU is equal to the X value.

With reference to the fifth aspect and the foregoing implementation manners thereof, in another implementation manner of the fifth aspect, the MAC PDU includes fourth indication information, and the fourth indication information is used to indicate a size of the CCCH SDU.

According to a sixth aspect, a communication method is provided, including: the network device generates instruction information, the instruction information is used to indicate whether the communication device reports a Type 2 PH of a cell; and the network device sends the instruction information to the communication device Wherein, the cell is a secondary cell PUCCH SCell supporting a physical uplink control channel under the new air interface NR base station.

According to the communication method provided in the embodiment of the present application, by enabling the network device to issue instruction information to indicate whether the communication device reports the PH of the Type 2 of the PUCCH under the NR base station, it is possible to prevent the communication device from reporting the PH of the Type 2 of the PUCCH under the NR base station. An error occurred.

With reference to the sixth aspect, in an implementation manner of the sixth aspect, the indication information includes: PH type information and / or cell information, where the cell information includes cell type information, and / or, the cell is an NR side or Cell indication information on the LTE side.

According to the communication method provided in the embodiment of the present application, by making the instruction information delivered by the network device include the type information and / or cell information of the PH, the communication device can obtain the type information and / or cell information of the PH according to the instruction information.

With reference to the sixth aspect and the foregoing implementation manners, in another implementation manner of the sixth aspect, the format of the PHR includes: a Type 2 PH field, where the Type 2 PH field is used to report the cell, and is not used to report PH of a Type 2 cell other than the cell.

According to the communication method provided in the embodiment of the present application, by modifying the format of the PHR, it is possible to reserve space for information transmission when a Type 2 PH is reported.

According to a seventh aspect, a communication method is provided, including: parsing a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and the bitmap is used to indicate the PHR format. A first mapping relationship between the carried PH and a plurality of activated BWPs.

According to the communication method provided in the embodiment of the present application, a bitmap is carried in the PHR format, and the bitmap is used to indicate the first mapping relationship between the PH carried in the PHR and multiple BWPs, and the PH in the PHR can be obtained based on BWP granularity analysis.

With reference to the seventh aspect, in an implementation manner of the seventh aspect, the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.

With reference to the seventh aspect and the foregoing implementation manners thereof, in another implementation manner of the seventh aspect, the method further includes: when the cell is a special cell SpCell or a secondary cell PUCCH SCell supporting a physical uplink control channel, and the cell When at least one BWP of the multiple activated BWPs supports PUCCH transmission, the first mapping relationship includes a mapping relationship between the at least one BWP and at least one Type 2 PH, and the multiple activated BWPs and multiple Type 1 Or Type3 PH mapping relationship; when the cell is a cell other than the SpCell and the PUCCH SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes: the Mapping relationship between at least one BWP and at least one Type1 or Type3 PH.

According to an eighth aspect, a communication method is provided, including: a network device sends first instruction information, where the first instruction information is used to indicate a value of X, and the value of X is used for Msg3 in a random access process with a communication device The size of the service data unit CCCH and SDU of the common control channel contained in the MAC PDU carried in the message is compared; whether the comparison result is equal is used to determine whether the MAC subheader included in the MAC PDU carries the L domain, where The L field is used to determine the size of the CCCH SDU.

According to the communication method provided in the embodiment of the present application, the network device sends the first indication information to determine the value of X, and further determines whether the MAC subheader carries the L field by comparing whether the CCCH SDU and the X value are equal. Whether the size of X is equal to the value of X, choose the size to carry the L field.

Optionally, the first indication information is a system message sent by a network device.

With reference to the eighth aspect, in an implementation manner of the eighth aspect, the first indication information is further used to indicate a size of a minimum uplink grant UL grant for the Msg3 message.

According to the communication method provided in the embodiment of the present application, by making the first indication information indicate the size of the minimum uplink grant UL grant for the Msg3 message, the communication device can determine the size of the minimum uplink grant UL grant according to the first indication information.

With reference to the eighth aspect and the foregoing implementation manners, in another implementation manner of the eighth aspect, the indicating whether the MAC subheader included in the MAC PDU carries an L domain includes:

The size of the minimum uplink grant UL grant determines the value of X, and determines whether the MAC subheader included in the MAC PDU carries the L domain according to whether the CCCH SDU is equal to the value of X.

With reference to the eighth aspect and the foregoing implementation manners, in another implementation manner of the eighth aspect, the network device receives fourth instruction information, and the fourth instruction information is used to indicate a size of the CCCH SDU.

According to a ninth aspect, a communication device is provided, and the communication device can be used to perform operations of the communication device in any of the possible implementation manners of the first aspect to the fourth aspect and the first aspect to the fifth aspect. Specifically, the communication device includes means for performing steps or functions corresponding to the steps described in the first aspect to the fourth aspect, which may be the communication device of the first aspect to the fifth aspect. The steps or functions may be implemented by software, or by hardware, or by a combination of hardware and software.

In a tenth aspect, a network device is provided, and the network device may be used to perform operations of the network device in the fifth aspect and the sixth aspect, and any possible implementation manner of the sixth aspect to the eighth aspect. Specifically, the network device includes means corresponding to the steps or functions described in the foregoing sixth aspect to the eighth aspect, which may be the network device of the fourth aspect to the eighth aspect. The steps or functions may be implemented by software, or by hardware, or by a combination of hardware and software.

According to an eleventh aspect, a communication device is provided, including a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device executes the first to the first The communication method in any of the eight possible implementation manners.

Optionally, there are one or more processors, and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory is separately provided from the processor.

Optionally, the communication device further includes a transmitter (transmitter) and a receiver (receiver).

According to a twelfth aspect, a communication system is provided. The system includes the foregoing communication device and a network device. Includes transceiver, processor, and memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication system executes any one of the first to eighth possible implementation manners Methods.

According to a thirteenth aspect, a computer program product is provided. The computer program product includes a computer program (also referred to as code or instructions), and when the computer program is executed, causes a computer to execute the first to the first steps described above. The method in any of the eight possible implementations.

According to a fourteenth aspect, a computer-readable medium is provided, where the computer-readable medium stores a computer program (also referred to as code, or instructions), which when executed on a computer, causes the computer to execute the first to the first The method in any of the eight possible implementations.

According to a fifteenth aspect, a chip system is provided, including a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a communication device installed with the chip system executes The method in any one of the foregoing first to eighth possible implementation manners.

The communication method, communication device, network device, and communication system in the embodiments of the present application enable the communication device to determine the report at the time when the logical channel priority LCP process is started based on the first UL grant or when the protocol data unit MAC PDU is started to be assembled. The type of PH value in PHR can improve the accuracy of PHR transmitted by communication equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a system 100 capable of applying a communication method according to an embodiment of the present application.

FIG. 2 is a schematic diagram of a communication device transmitting PHR.

FIG. 3 is a schematic diagram of transmitting PHR by another communication device.

FIG. 4 is a schematic diagram of a communication method according to an embodiment of the present application.

FIG. 5 is a schematic diagram of a time window provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of another communication method according to an embodiment of the present application.

FIG. 7 is a schematic diagram of another communication method according to an embodiment of the present application.

FIG. 8 is a schematic diagram of another communication method according to an embodiment of the present application.

FIG. 9 is a schematic diagram of a MAC subheader carrying an L domain.

FIG. 10 is a schematic diagram of a MAC subheader that does not carry an L domain.

FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.

FIG. 12 is another schematic structural diagram of a communication device according to an embodiment of the present application.

FIG. 13 is another schematic structural diagram of a communication device according to an embodiment of the present application.

FIG. 14 is another schematic structural diagram of a communication device according to an embodiment of the present application.

FIG. 15 is a schematic structural diagram of a network device according to an embodiment of the present application.

FIG. 16 is another schematic structural diagram of a network device according to an embodiment of the present application.

FIG. 17 is another schematic structural diagram of a network device according to an embodiment of the present application.

FIG. 18 is another schematic structural diagram of a network device according to an embodiment of the present application.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The terms “component”, “module”, “system”, and the like used in this specification are used to indicate computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. By way of illustration, both an application running on a computing device and a computing device can be components. One or more components can reside within a process and / or thread of execution, and a component can be localized on one computer and / or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (e.g., data from two components that interact with another component between a local system, a distributed system, and / or a network, such as the Internet that interacts with other systems through signals) Communicate via local and / or remote processes.

It should be understood that the embodiments of the present application can be applied to various communication systems, for example, a global mobile communication (GSM) system, a code division multiple access (CDMA) system, and a broadband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Advanced Long-term Evolution LTE-A) system, Universal Mobile Telecommunication System (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi), or next-generation communication systems, etc. Here, the following One Generation Pass The system may include, for example, a fifth-generation (fifth-generation, 5G) communication system or a new air interface (new radio, NR) and the like.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support device-to-device (device-to-device, D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and vehicle-to-vehicle (V2V) communication.

The embodiments of the present application describe various embodiments in combination with a communication device, where:

The communication device in this application may be a terminal device. Terminal equipment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user Agent or user device. The terminal device can be a station (staion, ST) in the WLAN, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, and personal digital processing (personal digital assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, such as terminal devices in 5G networks or Terminal equipment and the like in a future evolved public land mobile network (PLMN) network.

By way of example and not limitation, in the embodiments of the present application, the communication device may also be a wearable device. Wearable devices can also be referred to as wearable smart devices, which are the general name for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a device that is worn directly on the body or is integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also powerful functions through software support, data interaction, and cloud interaction. Broad-spectrum wearable smart devices include full-featured, large-sized, full or partial functions that do not rely on smart phones, such as smart watches or smart glasses, and only focus on certain types of application functions, and need to cooperate with other devices such as smart phones Use, such as smart bracelets, smart jewelry, etc. for physical signs monitoring.

In addition, in the embodiment of the present application, the communication device may also be a terminal device in an Internet of Things (IoT) system. The IoT is an important part of the future development of information technology. Its main technical feature is to pass items through communication technology. It is connected to the network, so as to realize the intelligent network of human-machine interconnection and internet of things.

By way of example and not limitation, in the embodiment of the present application, the network device may be a base station (BS), and the base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point.

Exemplarily, the base station involved in this embodiment of the present application may be a base station in NR, where the base station in NR may also be referred to as a transmission and reception point (TRP) or gNB, and may also be a GSM or CDMA The base transceiver station (BTS) can also be a Node B (NB) in a WCDMA system, or an evolutionary Node B (eNB or eNodeB) in an LTE system. It is the next generation Node B (gNB) in the future 5G network.

The network device involved in the embodiment of the present application may also include a device that is deployed in a wireless access network and can perform wireless communication with a terminal.

For example, it may be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, a network device in a future 5G network, or a public land mobile that is evolving in the future. Network equipment in a public network (PLMN). For example, evolved Node B (eNB), radio network controller (RNC), Node B (NB), network equipment controller (BSC), network equipment transceiver Base station (BTS), home network equipment (eg, Home NodeB, or Home NodeB, HNB), baseband unit (BBU), and so on. In the embodiment of the present application, the device that implements the function of the network device may be a network device, or may be a device that supports the network device to implement the function, such as a chip, a circuit, or other device. In the embodiment of the present application, the technical solution provided in the embodiment of the present application is described by taking the device that implements the functions of the network device as a network device as an example.

In addition, in the embodiment of the present application, a network device provides services for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, and the cell may be a network device (For example, a base station) The corresponding cell. The cell can belong to a macro base station or a small cell. The small cell here can include: urban cell, micro cell, and pico cell. (pico cell), femto cell (femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.

In addition, multiple carriers on the carrier in the LTE system or 5G system can work on the same frequency at the same time. In some special scenarios, the above carrier and cell concepts can be considered equivalent. For example, in a carrier aggregation (CA) scenario, when a secondary carrier is configured for a UE, the carrier index of the secondary carrier and the cell ID (cell ID) of the secondary cell operating on the secondary carrier are carried at the same time. In this case, the concept of a carrier and a cell can be considered to be equivalent. For example, a UE accessing a carrier and accessing a cell are equivalent.

In the embodiment of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. This application layer contains applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application. The communication may be performed by using the method. For example, the method execution subject provided in the embodiment of the present application may be a communication device or a network device, or a function module in the communication device or the network device that can call a program and execute the program.

In addition, various aspects or features of the embodiments of the present application may be implemented as a method, an apparatus, or an article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media used to store information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.

As shown in FIG. 1, the wireless communication system 100 may include one or more network devices, for example, network device # 1, network device # 2, 112, and network device # 3 shown in FIG. 1; the wireless communication system 100 It may also include one or more communication devices, for example, the communication device 121 shown in FIG. 1.

The wireless communication system 100 can also support CoMP transmission, that is, multiple cells or multiple network devices can cooperatively participate in data transmission of a communication device or jointly receive data sent by a communication device, or multiple cells or multiple network devices can perform Cooperative scheduling or cooperative beamforming. The multiple cells may belong to the same network device or different network devices, and may be selected according to channel gain or path loss, received signal strength, received signal instruction, and the like.

Optionally, in the communication system 100 shown in FIG. 1, one of the network device # 1 to the network device # 3 (for example, the network device # 1) may be a serving network device, and the serving network device may refer to a wireless air interface protocol as The communication device is a network device that provides at least one of radio resource control (RRC) connection, non-access stratum (NAS) mobility management, and security input services. Optionally, network device # 2 and network device # 3 may be cooperative network devices. The serving network device may send control signaling to the communication device, and the cooperative network device may send data to the communication device; or, the serving network device may send control signaling to the communication device, and the serving network device and the cooperative network device may send data to the communication device; Or, both the serving network device and the cooperative network device can send control signaling to the communication device, and both the serving network device and the cooperative network device can send data to the communication device; or, the cooperative network device can send control signaling to the communication device and service At least one of the network device and the cooperative network device may send data to the communication device; or, the cooperative network device may send control signaling and data to the communication device. This embodiment of the present application does not specifically limit this.

It should be understood that FIG. 1 is only for easy understanding, and schematically illustrates network device # 1 to network device # 3 and communication device, but this should not constitute any limitation to this application, and the wireless communication system may include more Or a smaller number of network devices, or a larger number of communication devices, the network devices communicating with different communication devices can be the same network device, or different network devices, and the network communicating with different communication devices The number of devices may be the same or different, which is not limited in this application.

In the following, the network device # 1 and the communication device 121 are taken as an example to briefly explain the communication between the network device and the communication device.

Network device # 1111 may include 1 antenna or multiple antennas. In addition, the network device # 1 may additionally include a transmitter chain and a receiver chain. Those of ordinary skill in the art can understand that each of them can include multiple components related to signal transmission and reception (such as a processor, a modulator, Router, demodulator, demultiplexer or antenna, etc.).

Network device # 1 can communicate with multiple communication devices. The communication device 121 may be, for example, a cellular phone, a smart phone, a portable computer, a handheld communication device, a handheld computing device, a satellite radio, a global positioning system, a PDA, and / or any other suitable device for communicating on the wireless communication system 100.

As shown in FIG. 1, the communication device 121 communicates with the network device # 1, where the network device # 1 111 sends information to the communication device 121 through a forward link (also referred to as a downlink), and through a reverse link (Also called uplink) Network device # 1 receives information from communication device 121.

For example, in a frequency division duplex (FDD) system, for example, the forward link and the reverse link use different frequency bands.

As another example, in a time division duplex (TDD) system and a full duplex system, the forward link and the reverse link may use a common frequency band.

Each antenna (or antenna group consisting of multiple antennas) and / or area designed for communication is called a sector of network device # 1 111.

For example, the antenna group may be designed to communicate with a communication device in a sector covered by the network device # 1 111. Network device # 1 can send signals to all communication devices in its corresponding sector through a single antenna or multiple antenna transmit diversity. During the communication between the network device # 1 and the communication device 121 through the forward link, the transmitting antenna of the network device # 1 can also use beamforming to improve the signal-to-noise ratio of the forward link.

In addition, compared to the way in which network device # 1 sends signals to all its communication devices through a single antenna or multiple antenna transmit diversity, network device # 1 uses beamforming to send randomly scattered communication devices 121 in the relevant coverage area. When signalling, mobile devices in adjacent cells experience less interference.

At a given time, the network device # 1 and the communication device 121 may be a wireless communication transmitting device and / or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device may encode the data for transmission. Specifically, the wireless communication transmitting device may obtain (for example, generate, receive from another communication device, or save in a memory, etc.) a certain number of data bits to be transmitted to the wireless communication receiving device through a channel. Such data bits may be contained in a transport block (or transport blocks) of data, which may be segmented to generate a plurality of code blocks.

In addition, the communication system 100 may be a PLMN network, a D2D network, an M2M network, an IoT network, or other networks. FIG. 1 is only a simplified schematic diagram of an example. The network may also include other network devices or communication devices, which are not shown in FIG. 1. .

In order to facilitate the understanding of the technical solutions described in this application, first, the power headroom report (PHR) and power headroom (PH) types in the prior art that will be involved in the embodiments of the present application are briefly introduced. , PH value type, uplink grant (UL grant) type, and partial bandwidth (bandwidth part (BWP)) and other basic concepts.

It should be understood that the above-mentioned PH types and PH value types are different concepts. The PH type refers to different PH types according to different transmissions supported by the cell, and the PH type is divided into different PH types for different PH values.

Power headroom report:

The PHR is the difference between the maximum transmission power of the communication device and the estimated uplink transmission power of the communication device to the network device.

It should be understood that the power headroom information reported by the communication device can provide an important reference for the network device to perform uplink scheduling on the communication device.

The network device can obtain the remaining power information of the communication device according to the PHR reported by the communication device. Thus, the network device decides to schedule wireless resources for the communication device.

For example, when the network device learns that the remaining power of the communication device is relatively large according to the PHR reported by the communication device, the network device can schedule more frequency resources for the communication device for more data transmission;

Alternatively, according to the PHR reported by the communication device, the network device learns that when the remaining power of the communication device is low or insufficient, the network device can schedule fewer frequency resources for the communication device for less data transmission.

As described above, the transmission of PHR by communication equipment can avoid the phenomenon that the maximum transmission power of the communication equipment is insufficient;

Or, the transmission of PHR by the communication equipment can avoid the phenomenon that the maximum transmission power of the communication equipment remains to a certain extent.

Power headroom type:

In carrier aggregation, the power headroom report of a communication device is calculated and reported separately for each cell.

And, the power headroom includes the following three different types.

The first type (Type1) power headroom is for the case where only physical uplink shared channel (PUSCH) transmission is supported;

The second type (Type 2) power headroom is for the case of supporting physical uplink control channel (PUCCH) and PUSCH transmission;

The third type (Type3) power headroom is for the case where only channel sounding reference signal (SRS) transmission is supported.

It should be understood that, in carrier aggregation, when a communication device transmits a PHR. The PH value information included in the PHR is the PH value information of all the cells activated in the carrier aggregation, and when there are multiple activated cells in the carrier aggregation, the communication device reports on the activated cell at the same time. PH value information of an activated cell.

According to the introduction above, PH can be divided into three types.

The Type 2 PH is reported for a cell that supports both PUCCH transmission and PUSCH transmission; or, the Type 2 PH of the three types of PH is reported for a cell that supports PUCCH transmission.

According to the development of communication technology, there are two types of cells that can support both PUCCH and PUSCH transmission:

One type is a special cell (SpCell), which is divided into a primary cell (PCell) of a primary base station and a primary cell (PSCell) of a secondary base station.

The other is a secondary cell (SCell) that supports PUCCH transmission.

Currently in NR, no matter what kind of cell. That is, even the above-mentioned SpCell or PUCCH and SCell. No communication device is allowed to report Type 2 PH.

Because in the first version of the NR protocol, it is not necessary to support communication equipment to report Type 2 PH, and considering the complexity of the protocol, communication equipment is prohibited from reporting Type 2 PH.

It should be understood that, in the NR protocol, the communication device is not allowed to report the Type 2 PH, but the process of reporting the Type 2 PH by the communication device is still retained in the protocol. This is for forward compatibility, that is, for the consideration of later versions, the standard protocol retains the procedure and format for the communication device to report the Type 2 PH in the PUCCH SCell cell under the NR base station.

It should also be understood that the process and format of the Type 2 PH reported by the communication device for the PUCCH SCell cell under the NR base station in the above protocol will cause some problems.

For example, if a communication device executes the process and format of reporting a Type 2 PH according to the current protocol standard, but needs to obtain some necessary reporting information when reporting, and if the communication device is not allowed to report the Type 2 PH, the communication device obtains the reporting information An error will occur.

In addition, there are two types of PH values carried in PHR:

Real type (real): PH value is reported based on real transmission;

Virtual type (virtue): There is no actual transmission. It is reported based on the reference format. When the PH value is a virtual type, the corresponding P _{CMAX, f, c} fields are not included in the PHR format.

The following describes the process of transmitting PHR by a communication device under carrier aggregation with reference to FIG. 2.

FIG. 2 is a schematic diagram of a communication device transmitting PHR. Figure 2 includes cell 1, cell 2, uplink scheduling 1, PHR trigger, and DCI1. Among them, cell 1 and cell 2 are different cells in carrier aggregation.

It can be seen from FIG. 2 that after the PHR of the communication device is triggered, the process of transmitting the PHR by the communication device will be performed on the uplink scheduling 1 (UL grant 1) on the cell 1. The PHR of the communication device must include not only the PH value of cell 1 but also the PH value of cell 2.

At this time, if cell 2 also has uplink transmission during the time period when the communication equipment transmits PHR, then the type of PH value of cell 2 is the above-mentioned true type; if cell 2 does not have uplink transmission during the time period of communication equipment transmitting PHR, then The PH type of cell 2 is a virtual type.

DCI1 in FIG. 2 is downlink control information for indicating the location of the communication device UL grant1. From the time when the communication device receives the DCI to the time when the communication device can use the UL Grant1 resource, the communication device needs a period of time to process.

It should be understood that the moment when the above-mentioned DCI1 is issued may be before the PHR is triggered or after the PHR is started, which is not limited in this application.

It should also be understood that the time when the communication device can use the UL Grant1 resource refers to the start time of the communication device transmitting PHR.

It should also be understood that the communication device needs a period of time to process, including the communication device processing DCI1, that is, parsing the DCI, and the communication device determining to transmit the content of the PHR.

In NR, the processing time of communication equipment on different cells can be different, so the following situations may occur:

1. When the communication device receives DCI1 on cell 1, cell 2 does not have a UL grant within the PHR transmission period of the communication device. Then the communication device judges the type of the PH value of the cell 2 according to the receiving time of the DCI1. The type of the PH value reported for the cell 2 in the PHR reported by the communication device is a virtual type;

2. After the communication device receives DCI1 on cell 1, and before the PHR transmission time. The communication device received DCI2 on the cell 2, and the transmission time of the UL Grant2 indicated by the DCI2 and the transmission time of the PHR of the communication device overlap.

As shown in FIG. 3, FIG. 3 is a schematic diagram of transmitting PHR by another communication device. Then the type of PH value for cell 2 in the PHR reported by the communication device should be the real type.

Therefore, in the process of transmitting the PHR by the communication device shown in FIG. 2 and FIG. 3 described above. The communication device judges whether the type of the PH value for the cell 2 in the PHR reported by the communication device according to the receiving time of the DCI1 is not accurate.

Further, the communication device needs to clearly specify a basis for determining the PH value type of the cell 2 and a determination time for determining the PH value type of the cell 2. Therefore, it is determined whether the communication device should report the virtual or real PH type for cell 2 when transmitting PHR.

It should be understood that the above-mentioned UL Grant1 resource lasts for a period of time, and the communication device needs to transmit the MAC PDU where the PHR is located within this period of time.

Uplink scheduling (UL grant) type:

Dynamic scheduling: The network device first sends downlink control information (DCI) to the communication device. The DCI is used to indicate when and where the communication device actually schedules. Then, the communication device uses the uplink scheduling indicated by the DCI. Time to send information using UL grant. Transmissions performed on dynamic scheduling may be referred to as dynamic uplink transmissions; transmissions not performed on dynamic scheduling are referred to as non-dynamic uplink transmissions.

Configured scheduling (configured grant): The network equipment instructs the communication equipment in advance, and the UL grant start time and UL grant repeatedly appear in a certain cycle. Then, the communication device can use the UL grant at the time when the UL grant occurs periodically. In this UL grant type, network equipment is not needed, and according to each UL grant, DCI is sent to indicate the use time and location of each UL grant by the communication device.

Partial bandwidth (BWP):

The concept of partial bandwidth is introduced in a new air interface (new radio, NR), and each cell can include multiple BWPs. However, at the same time, a communication device can only activate and use one BWP in each cell.

Since only one BWP can be activated in a cell at present, the transmission of PHR by a communication device is still reported based on the cell (each cell reports a PH value).

However, the latter protocol may support the case where multiple BWPs are activated in a cell, then the communication device needs to consider a scheme of reporting based on the BWP granularity when transmitting PHR.

In order to solve the above problems, this application proposes a communication method, which can improve the accuracy of PHR transmitted by a communication device.

The following describes the communication method in the present application in detail with reference to FIGS. 4 to 8.

FIG. 4 is a schematic diagram of a communication method according to an embodiment of the present application. Including S110-S150 five steps, these five steps are described in detail below.

S110: The PHR of the communication device is triggered.

The trigger condition of the PHR of the communication device may be any one of the following trigger conditions:

The first condition: when the communication device has uplink resources for transmitting new data, the prohibit PHR timer (prohibitPHR-Timer) has timed out or has timed out, and after the last PHR transmission, the path loss change value has exceeded the reference path loss Change value (dl-pathlosschange), unit: decibel (dB).

The first condition requires attention to two places:

First, the "variation" of path loss is used here. That is, it does not distinguish whether the current path loss becomes larger or smaller, and considers the absolute difference of the path loss.

Second, if prohibitPHR-Timer is still running, PHR cannot be triggered. That is, it is useless regardless of how much the path loss changes.

It should be understood that the existence of the prohibitPHR-Timer is to prevent the occurrence of a situation in which a communication device is frequently triggered to transmit PHR due to frequent path loss changes or a path loss threshold set too low.

The second condition: the periodic PHR timer (periodicPHR-Timer) expires.

The third condition: when the RRC layer is configured or reconfigured, the PHR function or PHR parameters, and this configuration or reconfiguration does not prohibit PHR.

For example, RRC reconfigures the value of the timer.

It should be understood that, in the embodiment of the present application, the condition that the PHR of the communication device is triggered may be triggered by the trigger condition provided in the prior art, or may be triggered by other trigger conditions that can trigger the transmission of PHR by the communication device. Not limited.

S120. The communication device determines a first UL grant for transmitting PHR.

After the PHR of the communication device is triggered, the communication device first determines the first UL grant to be used to transmit the PHR.

Optionally, in some embodiments, the first UL grant may be the first UL Grant allocated by the network device to the communication device after the PHR of the communication device is triggered.

Optionally, in other embodiments, the first UL grant may be the UL grant with the earliest time from the time when the PHR of the communication device is triggered, before and after the time when the PHR of the communication device is triggered.

Optionally, in other embodiments, the first UL grant may be the first UL grant corresponding to the DCI received by the communication device after the PHR of the communication device is triggered.

Optionally, in other embodiments, the first UL grant may be a UL grant indicated by a configured grant set in advance by a network device.

It should be understood that the first UL grant may be a UL grant on a cell in an activated state in a single carrier scenario; or the first UL grant may be a cell in an active state and transmit the PHR in a carrier aggregation scenario. On the UL grant.

Optionally, in some embodiments, before the communication device determines a first UL grant for transmitting the PHR on the first cell, the method further includes: the communication device determines the first UL The size of the grant can accommodate the size of the PHR.

For example, after the communication device first determines that the first UL grant is a communication device PHR is triggered, the network device transmits the first UL Grant1 of the new data allocation for the communication device, but the UL Grant1 resource size is not sufficient to support the communication device transmission PHR.

Then, the communication device needs to determine another first UL grant, which is a UL grant2 that can support the transmission of PHR by the communication device. The UL grant2 may be the first UL grant corresponding to the DCI indicating the UL grant after the PHR of the communication device is triggered, or the UL grant2 may be the time before and after the PHR of the communication device is triggered. In the segment, the earliest UL grant from the moment when the PHR of the communication device is triggered, or the UL grant2 may be another UL grant that can support the transmission of PHR by the communication device.

This application does not limit how to determine the first UL grant, and the size of the first UL grant can accommodate the PHR, and may be any one of the foregoing determination methods.

It should also be understood that when a communication device transmits a PHR, the type of the PH value of the cell that transmits the PHR and does not support PUCCH transmission must be the true type. Because the first UL grant that the communication device uses to transmit PHR is the UL grant on the cell, then the cell must have actual transmission.

S130. The communication device determines a PH value type carried in the PHR at the first moment.

After the communication device decides to transmit the first UL grant used by the PHR and the DCI corresponding to the first UL grant, the communication device starts a logical channel priority (LCP) process based on the first UL grant or assembles and starts medium access control. Protocol data unit (MAC, PDU, MAC, PDU) process.

The above LCP process refers to that the communication device includes multiple logical channels after the communication device determines the first UL grant. The communication device needs to determine how much resources are allocated to each logical channel through the LCP process, that is, how much data is taken from each logical channel to form a complete MAC PDU, and then transmitted on the first UL grant.

It should be understood that when the communication device performs the LCP process, the communication device needs to know the PH value type of each cell carried in the PHR. Because the PH type of each cell affects the size of the PHR, the communication device needs to know the size of the PHR during LCP.

The above MAC PDU assembly refers to: After the terminal device determines the UL grant, the LCP process is performed according to the size of the UL grant to take a certain amount of data packets from each logical channel, and the corresponding MAC subheader is assembled to form a MAC PDU. The UL grant is transmitted.

The first time is the time when the communication device starts the LCP process based on the first UL grant, or the first time is the time when the communication device starts to assemble the MAC PDU based on the first UL grant.

It should be understood that, the communication device determines the PH value type carried in the PHR at the first moment. Compared with the prior art shown in FIG. 2 or FIG. 3, the communication device determines the PH value type based on the receiving DCI moment with higher accuracy.

It should also be understood that the above-mentioned determining the PH value type includes: determining a PH value type of a cell in an activated state in carrier aggregation.

Optionally, in some embodiments, the communication device determines the type of the PH value carried in the PHR according to whether the communication device receives a DCI for scheduling UL grants before and including the first time. A schematic diagram of a time window before the first moment and including a time corresponding to the first moment is shown in FIG. 5.

S140. The communication device sends a PHR to the network device.

After determining the reported PHR, the communication device sends the determined PHR to the network device.

S150. The network device analyzes the PHR, obtains the PH value, and performs uplink scheduling.

After receiving the PHR of the communication device, the network device parses the PHR, obtains the PH value information carried therein, and performs uplink scheduling on the communication device according to the PH value information.

It should be understood that, in the embodiment of the present application, the end time of the time window is limited to the first time, and the duration (L) and the start time (T0) of the time window are not limited.

For example, determining the type of the PH value of the second cell is taken as an example. Within the time window, the communication device receives DCI on the second cell, the DCI indicates a second UL grant, and the start time of the second UL grant and the start time of the first UL grant overlap . Then, in the PHR, the type of the PH value for the second cell is a true type.

It should be understood that the above-mentioned pair of DCIs may also be physical downlink control channel commands (PDCCH orders).

Optionally, in other embodiments, the communication device determines the type of the PH value carried in the PHR at the first moment according to whether the non-dynamically scheduled uplink transmission is included in the transmission time period where the first UL grant is located.

For example, determining the type of the PH value of the second cell is taken as an example. In the transmission time period in which the first UL grant of the PHR is transmitted by the communication device, the second cell includes non-dynamically scheduled uplink transmission. Then, in the PHR, the type of the PH value for the second cell is a true type.

Optionally, in some embodiments, whether the above-mentioned second cell includes non-dynamically scheduled uplink transmission within a transmission time period where the first UL grant is located includes: the above-mentioned second cell's transmission time period where the first UL grant is located Whether any data is transmitted on the configured uplink resource.

Further, the configured uplink resource (configured uplink grant) of the second cell refers to uplink resources that are configured in advance by a network device and appear periodically. Including, but not limited to, configured resource type 1configured grantType1 and configured resource type 2configured grantType2.

For example, during the transmission period in which the first UL grant of the PHR is transmitted by the communication device, the second cell has data transmitted on the configured uplink resource. Then, in the PHR, the type of the PH value for the second cell is a true type.

Optionally, in some other embodiments, whether the second cell includes non-dynamically scheduled uplink transmission within a transmission time period where the first UL grant is located, including: the transmission time of the second cell where the first UL grant is located Whether there is a channel sounding reference signal SRS transmission in the segment.

For example, during the transmission period of the first UL grant where the communication device transmits PHR, the second cell has SRS transmission. Then, in the PHR, the type of the PH value for the second cell is a true type.

Optionally, in some other embodiments, whether the second cell includes non-dynamically scheduled uplink transmission within a transmission time period where the first UL grant is located, including: the transmission time of the second cell where the first UL grant is located Whether there is a physical uplink control channel PUCCH transmission in the segment.

For example, the second cell has PUCCH transmission during the transmission time period in which the first UL grant of the PHR is transmitted by the communication device. Then, in the PHR, the type of the PH value for the second cell is a true type.

Optionally, when there is no uplink transmission on the second cell, that is, in the PHR reported by the communication device, the type of the PH value of the second cell is a virtual type. The uplink transmission includes at least one of PUSCH, PUCCH, or SRS. Further, the communication device does not need to obtain the corresponding P _{CMAX, f, c} values of the second cell from the physical layer.

FIG. 6 is a schematic diagram of another communication method according to an embodiment of the present application. Including S210-S220 two steps, these two steps are described in detail below.

S210: The network device sends instruction information to the communication device.

The indication information is used to indicate whether a communication device reports a Type 2 PH of a cell. The cell is a secondary cell PUCCH / SCell supporting a physical uplink control channel under the NR base station.

It should be understood that before sending the instruction information, the network device generates the instruction information.

Optionally, in some embodiments, the cell includes:

When the communication device is configured with a new air interface-long-term evolution dual connection NR-LTE DC, or a long-term evolution-new air interface dual connection LTE-NR DC, a secondary cell PUCCH and SCell supporting a physical uplink control channel under the NR base station.

That is, the instruction information is used to indicate whether a dual connection (DC) is configured, and one side of the dual connection is connected to the NR, and the other side is connected to the LTE communication device, and whether to report the PUCCH under the NR base station. Type2 PH.

Optionally, in other embodiments, the cell includes:

When the communication device is not configured with a DC, or the communication device is configured with a new air interface-new air interface dual connection NR-NR DC, the PUCCH SCell under the NR base station.

That is, the indication information is used to indicate whether a single connection, or a communication device configured with dual connections, and both sides of the dual connection are connected to the NR, reports whether the type 2 PH of the PUCCH SCell under the NR base station is reported.

Optionally, in some embodiments, the indication information is a new information element (IE) configured by the network device for the communication device through RRC, and the value of the IE is set to False.

Optionally, in other embodiments, the indication information is that the network device configures a new IE for the communication device through RRC, and the value of the IE is set to True.

Optionally, in other embodiments, the indication information is that the network device does not configure a new IE for the communication device.

It should be understood that it can be specified that when the value of IE is set to False, the communication device does not report the PH of Type 2 to the PUCCH under the NR base station; The PUCCH of the SCell reports the Type 2 PH; or, it may be provided that when the network device does not configure a new IE for the communication device, the communication device does not report the Type 2 PH for the PUCCH of the NR base station.

Optionally, in other embodiments, the indication information is setting an existing IE (phr-Type2OtherCell) value to False.

Optionally, in other embodiments, the indication information is to set a value of an existing IE (phr-Type2OtherCell) to True.

Optionally, in other embodiments, the indication information is that the network device does not configure an existing IE (phr-Type2otherCell) for the communication device.

It should be understood that, when the value of phr-Type2OtherCell is set to False, the communication device does not report the PH of Type2 to the PUCCH under the NR base station; or, it may be specified that when the value of phr-Type2OtherCell is set to True, the communication device does not report Report the Type 2 PH for the PUCCH SCell under the NR base station; or it may be provided that when the network device does not configure a phr-Type2 OtherCell for the communication device, the communication device does not report the Type 2 PH for the PUCCH SCell for the NR base station.

Optionally, the indication information includes type information and / or cell information of the PH. The cell information includes cell type information, and / or, the cell is NR side or LTE side cell indication information.

For example, the indication information is that the network device configures a new IE for the communication device through RRC. The IE may be named phr-Type2PucchSCell, where phr-Type2 is indication information of PH type 2 and PucchSCell is cell type information.

It should be understood that the IE named phr-Type2PucchSCell is only an example form, and other naming forms may also be used. For example, phr-Type2-NRPucchSCell, or NR-PucchSCell. This application is not limited to this, as long as the communication device can determine, according to the instruction information, that it is not the PUCCH SCell under the NR base station that reports the Type 2 PH.

S220. The communication device determines whether to report the Type 2 PH of the cell according to the instruction information.

The communication device receives the instruction information, and determines whether to report the Type 2 PH of the cell according to the instruction information.

It should be understood that the above-mentioned indication information can be understood as a switch that instructs the communication device to report the Type 2 PH of the cell in the protocol, and the switch can be set to the long-off state in the protocol, that is, the communication device is instructed not to report the Type 2 of the cell. PH. Generally, if the above network device is not configured with a new IE for the communication device, the new IE value is set to False, the value of the phr-Type2OtherCell is set to False, and the network device is not configured with a phr-Type2OtherCell for the communication device, it is understood that the above switch is off. status.

In addition, the technical effect of reporting the Type2PH for the PUCCH and SCell that is not on the NR side can also be achieved by not introducing a new IE method; specifically, it can be specified in the protocol when NR-NR DC is configured or when DC is not configured. The IE: phr-Type2OtherCell value in the protocol must be set to false, otherwise it can be set to true.

Further, the communication device can modify the format of the transmitted PHR. The format of the PHR includes:

Type 2 PH domain. The Type 2 PH domain is used to report the PUCCH SCell under the NR base station, and is not used to report the PH of Type 2 in a cell other than the PUCCH SCell under the NR base station. That is, when the communication device can report the PH of Type 2 of the PUCCH SCell in the NR base station, the format of the PHR includes a domain corresponding to the PH of Type 2.

When the PH type of the Type 2 PH of the PUCCH Scell under the NR base station is a real type, the PHR format may further include a P _{CMAX, f, c} field corresponding to the Type 2 PH domain; when the NR base station When the PH type of the Type 2 PH value of the PUCCH Scell below is a virtual type, the PHR format may not include the P _{CMAX, f, c} fields corresponding to the Type 2 PH domain.

Further, the format of the PHR may further include a PH field of the second Type2, and a P _{CMAX, f, c} field corresponding to the PH field of the second Type2, where the PH field of the second Type2 is used for reporting The Type 2 PH of the PUCCH SCell in the LTE base station is described.

For the modified PHR format, refer to Table 1.

Table 1 Format of PHR

R in the first row in Table 1 represents a cell that is always activated, and is not involved in this application.

C ₁ to C ₇ in the first row in Table 1 represent different cells in carrier aggregation. When the bit value corresponding to C ₁ is 1, it indicates that the C ₁ cell is in an activated state.

When the bit value corresponding to V in the second row of Table 1 is 1, it indicates that the PH type of the cell is virtual.

R in the third row of Table 1 indicates a reserved bit.

The PH in the second row of Table 1 represents the PH value of the corresponding cell.

P _{CMAX, f, c} 1 in the third row of Table 1 is auxiliary power value information, which is not involved in this application.

It should be understood that when the PH value type of cell 1 is virtual, P _{CMAX, f, c} 1 is not included in the PHR format of cell 1. When the type of the PH value of the cell 1 is true, the PHR format of the cell 1 includes P _{CMAX, f, c} 1.

The other row and column information in Table 1 is similar to the PHR format in the prior art, and is not repeated here. The modification of the PHR format described in the embodiment of the present application is mainly to change the domain of PH (Type2, SpCell of MAC, or PUCCH, SCell) in the existing PHR format to PH (Type2, SpCell of MAC, MAC). , And added a PH (Type2, PUCCH, SCell, MAC, entity) domain.

Optionally, in some embodiments, FIG. 6 further includes S211 and S221.

S211. The network device sends the second instruction information to the communication device.

The second indication information is used to indicate whether the communication device reports a Type 2 PH of a third cell, where the third cell is a PUCCH SCell of an LTE base station.

Optionally, in some embodiments, the second indication information is used to instruct the communication device not to report the Type 2 PH of the third cell.

The third cell includes: when the communication device is configured with NR-LTE DC or LTE-NR DC, a PUCCH cell in a LTE base station to which the communication device is connected.

That is, the second indication information is used to indicate that a dual connection is configured, and one side of the dual connection is connected to the NR and the other side is connected to the LTE communication device, and does not report the type 2 PH of the PUCCH and the SCell of the LTE base station. .

Optionally, in other embodiments, the second indication information is used to instruct the communication device to report the Type 2 PH of the third cell.

Optionally, in some embodiments, whether the network device configures a new IE for the communication device, or by setting a value of the new IE as the second indication information.

For example, the second instruction information is that the network device configures a new IE (named: phr-Type2-LTEPucchSCell) for the communication device.

S221. The communication device determines whether to report the Type 2 PH of the third cell according to the second instruction information.

The communication device receives the second instruction information, and determines whether to report the Type 2 PH of the third cell according to the second instruction information.

Optionally, in some embodiments, the second indication information is phr-Type2-LTEPucchSCell. When the network device configures phr-Type2-LTEPucchSCell for the communication device, and the value of phr-Type2-LTEPucchSCell is set to true, the communication device reports The Type 2 PH of the third cell.

Optionally, in other embodiments, the second indication information is phr-Type2-LTEPucchSCell. When the network device configures phr-Type2-LTEPucchSCell for the communication device, and the value of phr-Type2-LTEPucchSCell is set to false, the communication device Report the Type 2 PH of the third cell.

Optionally, in other embodiments, when the second indication information is that the network device does not configure a phr-Type2-LTEPucchSCell for the communication device, the communication device reports the Type2 PH of the third cell.

Or, optionally, in some embodiments, the second indication information is phr-Type2-LTEPucchSCell. When the network device configures phr-Type2-LTEPucchSCell for the communication device, and the value of phr-Type2-LTEPucchSCell is set to true, communication The device does not report the Type 2 PH of the third cell.

Optionally, in other embodiments, the second indication information is phr-Type2-LTEPucchSCell. When the network device configures phr-Type2-LTEPucchSCell for the communication device, and the value of phr-Type2-LTEPucchSCell is set to false, the communication device The Type 2 PH of the third cell is not reported.

Optionally, in other embodiments, when the second indication information is that the network device does not configure a phr-Type2-LTEPucchSCell for the communication device, the communication device does not report the Type2 PH of the third cell.

It should be understood that how to use the second instruction information to indicate whether the communication device reports the Type 2 PH of the third cell may be specified by the system in advance, or may be agreed by both the network device and the communication device. When the second instruction information received is specifically Some information is reported when it is not reported otherwise.

FIG. 7 is a schematic diagram of another communication method according to an embodiment of the present application. Including S310-S330 three steps, these three steps are described in detail below.

S310. The communication device generates a PHR format according to a preset rule.

Optionally, in some embodiments, the preset rule is predefined by the system.

Optionally, in other embodiments, the preset rule is agreed in advance by the communication device and the network device.

Optionally, in other embodiments, the preset rule is issued by a network device to a communication device.

It should be understood that this application does not limit how a communication device obtains a preset rule.

S320. The communication device sends a PHR format to the network device.

A bitmap bitmap is carried in the PHR format, and the bitmap is used to indicate a first mapping relationship between the PH carried in the PHR and a plurality of activated BWPs. Or as

The communication device generates a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and a bit BWP of the bitmap satisfies a first mapping relationship, and a bit value of the bit is used to indicate that Whether the BWP whose bit satisfies the first mapping relationship is in an activated state;

When the BWP is in an activated state, the communication device reports the PH on the BWP;

When the BWP is in an inactive state, the communication device does not report the PH on the BWP.

Further, the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell. Or as

The bits in the bitmap are also used to indicate whether a cell that satisfies a second mapping relationship with the bits is in an active state.

When the cell is in an activated state, the BWP of the cell is in an activated state or an inactive state;

When the BWP is in an inactive state, the BWP in the cell is in an inactive state. Optionally, in some embodiments, the communication device uses only one bitmap to indicate which BWPs are active. Among them, according to the position of a bit in the bitmap, it can be determined which BWP on which cell this bit corresponds to.

For example, the communication device determines that 5 BWPs are in an activated state according to a bitmap, and indicates a first mapping relationship between the 5 BWPs and 5 PHs. Among them, it is determined that 5 BWPs are activated according to a bitmap. The bit values of the 5 bits in the bitmap are “1”, and the first mapping relationship may be that the 5 bits correspond to the 5 BWPs one by one, and further 5 Each BWP has a one-to-one correspondence with 5 PHs, so it can also be understood that the first mapping relationship may be a mapping relationship between 5 BWPs and 5 PHs.

Further, the communication device determines a second mapping relationship according to the position of one of the five bits corresponding to BWP1 in the five BWPs in the bitmap, and determines that BWP1 is the first BWP on cell 1 according to the second mapping relationship. .

For another example, the communication device determines that 5 BWPs are in an activated state according to a bitmap, and indicates a first mapping relationship between the 5 BWPs and 8 PHs. The first mapping relationship may be that 6 of the 8 PHs are bound to 3 BWPs respectively, and the remaining 2 PHs are bound to 2 BWPs. The binding between PH and BWP refers to the PH reported by a BWP.

Optionally, in some embodiments, the communication device uses two bitmaps to indicate the second mapping relationship between which part of the bandwidth BWP and which cells, and which part of the bandwidth BWP is in the corresponding cell location.

For example, the communication device uses a bitmap in the PHR reporting format to indicate whether the PH of each BWP needs to be reported according to a preset rule.

The first bitmap is used to indicate whether a certain cell is activated. If activated, the corresponding second bitmap indicates which BWPs of the corresponding cell are activated or need to report the corresponding type of PH.

Optionally, the corresponding second bitmap only exists if a certain cell is active.

It should be understood that this embodiment does not limit the corresponding types of PH described above, and may be any one of the PH types introduced earlier.

Refer to Table 2 for the format after adding two bitmaps to the PHR report format.

Table 2 PHR format

As can be seen from Tables 2 and 1, a line B ₁ to B ₃ has been added to Table 2 compared to Table 1.

For example, when C ₁ is active, according to the value of B ₁ ~ B ₃ is determined on a plurality of BWP a C ₁ is in an active state.

It should be understood that Table 2 is only for explaining the specific form of the bitmap in the foregoing embodiment, and is a simple example. The number of bits of B corresponding to each cell is not limited, and may be N, where N is a positive integer. Table 2 does not limit the scope of protection of this application.

Optionally, when the cell is a special cell SpCell or a secondary cell PUCCH SCell supporting a physical uplink control channel, and there is at least one activated BWP on the cell, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type 2 PH, and a mapping relationship between the multiple activated BWPs and multiple Type 1 or Type 3 PHs. Or as

When the cell is a special cell SpCell or a secondary cell PUCCH Scell that supports a physical uplink control channel, and at least one of the multiple activated BWPs in the cell supports PUCCH transmission, the communication device reports the PH on the BWP including:

The communication device reports a PH of Type 2 on the at least one BWP, and a PH of Type 1 or Type 3 on the multiple activated BWPs.

For example, when the cell is a SpCell, and 2 BWPs in the cell are in an activated state, among the 2 BWPs in the activated state, 1 BWP supports PUCCH transmission. Then, the PHR reported by the communication device for the cell should include the PH of Type 2 on 1 BWP and the PH of Type 1 or Type 3 on 2 BWPs.

Optionally, when the cell is a cell other than the SpCell and the PUCCH and SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes: the at least one BWP and at least one Mapping relationship of Type1 or Type3 PH.

Or as

When the cell is a cell other than the SpCell and the PUCCH and SCell, and there is at least one activated BWP on the cell, the communication device reporting the PH on the BWP includes:

A PH of Type 1 or Type 3 on the at least one BWP.

For example, when the cell is a cell other than the SpCell and the PUCCH and SCell, and two BWPs on the cell are activated, the PHR reported by the communication device to the cell should include Type 1 or Type 3 on the two BWPs. PH.

S330. The network device analyzes the PHR according to a preset rule.

After receiving the PHR sent by the communication device, the network device analyzes the PHR according to a preset rule to obtain related information.

FIG. 8 is a schematic diagram of another communication method according to an embodiment of the present application. Including S410-S420 two steps, these two steps are described in detail below.

First, the basic concepts involved in the communication method shown in FIG. 8 are briefly introduced.

In NR, each MAC PDU contains one or more MAC sub-PDUs. For a MAC PDU carried in a Msg3 message during a random access process of a communication device, the MAC PDU includes a common control channel service data unit (CCCH, SDU) and a MAC subheader.

In NR, the MAC PDU in this embodiment has two types of MAC subheaders:

One MAC subheader carries the L domain, and one MAC subheader does not carry the L domain. Among them, the L field is used to determine the size of the CCCH SDU.

It should be understood that the MAC subheader without the L domain saves one byte compared with the MAC subheader with the L domain. Therefore, when grouping packets, the communication device needs to choose to use a subheader with an L domain or a MAC subheader without an L domain.

FIG. 9 is a schematic diagram of a MAC subheader carrying an L domain. among them,

R means: reserved domain, reserved for future use.

F: Format field, which is used to indicate the length of the L field.

Optionally, the communication device may select whether to carry the MAC subhead of the L domain or select not to carry the MAC subhead of the L domain according to the size of the CCCH SDU.

It is known that for the Msg3 message in the subsequent NR, two minimum UL grant sizes will be supported.

A minimum UL grant is 56 bits and a minimum UL grant is 72 bits.

Next, how to let the communication device know whether to choose to use the MAC subheader carrying the L domain or to choose not to carry the MAC subheader carrying the L domain will be described in detail with reference to FIG. 8.

S410: The communication device determines a value of X according to the first instruction information.

Optionally, in some embodiments, FIG. 8 includes S411, and the network device sends the first instruction information to the communication device. That is, the first instruction information is received by the communication device from the network device.

For example, the network device sends a system message to the communication device that the first indication information is the network device. The system message can be the remaining minimum system information (Remaining system information) (RMSI).

When the system message includes the first identifier, the communication device determines that the value of X is 64 bits; when the system message does not include the first identifier, the communication device determines that the value of X is 48 bits.

It should be understood that the specific implementation of the first identifier is not limited in this embodiment, and may be an IE or a value of a bit in a system message, or other identifiers agreed between the network device and the communication device. .

Optionally, in other embodiments, the first indication information communication device does not receive the first indication information from the network device to the communication device.

For example, when the network device sends a system message to the communication device, the communication device determines that the value of X is 64 bits; when the network device does not send a system message to the communication device, the communication device determines that the value of X is 48 bits.

Optionally, in other embodiments, determining that the value of X by the communication device according to the first instruction information includes: determining, by the communication device, the minimum uplink authorized resource UL grant of the Msg3 message according to the first instruction information The value of X is determined according to the value of the minimum UL grant.

The first indication information is used to indicate a size of a minimum uplink grant UL grant for the Msg3 message.

For example, the first indication information is a system message issued by a network device. When the system message includes the first identifier, the communication device determines that the minimum uplink grant UL grant size is 72 bits. When the system message does not include the first identifier, the communication device It is determined that the minimum uplink grant UL grant size is 56 bits.

It should be understood that the specific implementation of the foregoing first identifier in the embodiments of the present application is not limited, and may be an IE or a value of a bit in a system message, or may be other agreed between the network device and the communication device. Logo.

The above first indication information is a system message issued by a network device and is only an example. The first indication information may also be other size indication information of UL grants that can be used for indication.

When the communication device determines that the minimum UL grant size is 56 according to the first instruction information, then X = 56-8 = 48;

S420: The communication device compares whether the size of the service data unit CCCH of the common control channel included in the MAC control PDU carried in the Msg3 message during the random access of the communication device is equal to the value of X, and determines whether Whether the MAC subheader carries the L field.

Optionally, in some embodiments, when the size of the CCCH SDU is X bits, the communication device determines that the MAC subheader included in the MAC PDU does not carry an L field; when the size of the CCCH SDU is not When X bits, the communication device determines that the MAC subheader included in the MAC PDU carries the L domain.

It should be understood that the X bit may be a value of X determined according to the first indication information in S410. The X bits can also be other numbers specified by the system.

Optionally, when the size of the CCCH SDU is X bits, the MAC subheader includes the first LCID; when the size of the CCCH SDU is not X bits, the MAC subheader includes the second LCID.

The first LCID may be "100001" and the second LCID may be "000000", or the first LCID and the second LCID may be other values. This embodiment of the present application is not limited to this.

Optionally, in some embodiments,

Optionally, in some embodiments, the communication device may further determine whether the L-domain is carried in the MAC subheader included in the MAC PDU according to the minimum UL grant size.

For example, when the minimum UL grant size is 56 bits, for the MAC PDU carried in the Msg3 message, when the size of the CCCH SDU is 48 bits, the communication device does not carry the MAC subheader included in the MAC PDU. L field; when the size of the CCCH SDU is other bits, the communication device carries the L field in the MAC subheader included in the MAC PDU. Because when the size of the CCCH SDU is 48 bits, the MAC subheader that does not carry the L domain can be used to fit the entire MAC PDU.

In this case, FIG. 8 includes S431, and the communication device sends fourth instruction information to the network device, where the fourth instruction information is used to indicate the size of the CCCH SDU.

Optionally, the MAC PDU sent by the communication device includes fourth indication information.

The fourth indication information may be a first dedicated local character set identifier (LCID) identifying that the CCCH SDU size is 48 bits.

or,

When the size of the minimum UL grant is 72 bits, for the MAC PDU carried in the Msg3 message, when the size of the CCCH SDU is 64 bits, the communication device does not carry the L field in the MAC subheader included in the MAC PDU. When the size of the CCCH SDU is other bits, the communication device carries the L field in the MAC subheader included in the MAC PDU.

The fourth indication information may identify that the CCCH SDU size is 64 bits for the second dedicated LCID.

It should be understood that when FIG. 8 includes S431, further, FIG. 8 should include 430, and the network device determines the size of the CCCH and SDU according to the fourth instruction information.

For example, when the above-mentioned dedicated LCID identifies that the CCCH SDU size is 48 bits, when the network device receives the Msg3 message, it parses the MAC PDU in the Msg3 message. First, obtain the value of the LCID. If the LCID is the first dedicated LCID, the network device determines that the CCCH SDU size is 48 bits. If the LCID is not the first dedicated LCID, the network device needs to receive the Msg3 message The L field of the MAC subheader of the MAC PDU determines the CCCH SDU size.

For another example, when the above-mentioned dedicated LCID identifies that the CCCH SDU size is 64 bits, when the network device receives the Msg3 message, it parses the MAC PDU in the Msg3 message. First, obtain the LCID value. If the LCID is the second dedicated LCID, the network device determines that the CCCH SDU size is 64 bits. If the LCID is not the second dedicated LCID, the network device needs to receive the Msg3 message according to the received Msg3 message. The L field of the MAC subheader of the MAC PDU determines the CCCH SDU size.

According to the foregoing method shown in FIG. 4 to FIG. 8, the communication device and the network device involved in the present application are described in detail below with reference to FIGS. 11 to 18.

FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device includes a processor 801, an application processor, a memory user interface, and some other components (including devices such as a power source not shown). In FIG. 11, the above-mentioned processing unit may be the processor 801 and complete a corresponding function. The sending unit and / or the receiving unit may be a wireless transceiver 803 in the figure, which performs a corresponding function through an antenna. It can be understood that each element shown in the figure is only schematic, and is not a necessary element for completing the embodiments of the present application.

FIG. 12 is another schematic structural diagram of a communication device according to an embodiment of the present application. As an example, the communication device may perform functions similar to the processor in FIG. 11. In FIG. 12, the communication device includes a processor, a transmission data processor, and a processor. In FIG. 12, the foregoing processing unit may be the processor 901 and complete a corresponding function. The sending unit may be the sending data processor 903 in FIG. 12, and the receiving unit may be the receiving data processor 905 in FIG. 12. Although a channel encoder and a channel decoder are shown in the figure, it can be understood that these modules do not constitute a restrictive description of the embodiments of the present application, but are only schematic.

FIG. 13 is another schematic structural diagram of a communication device according to an embodiment of the present application. The communication device 1000 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in the embodiment of the present application may be used as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1003 and an interface 1004. The processor 1003 performs the functions of the processing unit, and the interface 1004 performs the functions of the sending unit and / or receiving unit. As another modification, the modulation subsystem includes a memory 1006, a processor 1003, and a program stored on the memory and executable on the processor. When the processor executes the program, one of the first to fifth embodiments is implemented. method. It should be noted that the memory 1006 may be non-volatile or volatile, and its location may be located inside the modulation subsystem or in the processing device 1000 as long as the memory 1006 can be connected to the memory 1006. The processor 1003 is sufficient.

As another form of the embodiment of the present application, a computer-readable storage medium is provided, which stores instructions that execute the execution steps of the communication device in the method described in FIG. 4 to FIG. 8 when the instructions are executed.

FIG. 14 is another schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be a communication device that performs the steps of the communication device in the methods described in FIGS. 4 to 8, or may be hardware that implements similar functions. The communication device 1100 includes:

The processing unit 1101 is configured to trigger a power headroom report PHR of the communication device.

The processing unit 1101 is further configured to determine a first uplink grant UL grant for transmitting the PHR;

The processing unit is further configured to determine a power headroom PH value type carried in the PHR at a first moment, where the first moment includes the communication device starting a logical channel priority based on the first UL grant The time of the LCP process or the time when the MAC PDU of the MAC data unit starts to be assembled, the MAC PDU includes the PHR and is transmitted on the first UL grant;

The sending unit 1103 is configured to send the PHR to a network device.

The receiving unit 1102 is configured to receive downlink control information DCI.

The sending unit 1103 is configured to transmit data upstream and transmit PHR.

In some embodiments, the processing unit determining the type of the PH value carried in the PHR at the first moment includes:

The processing unit is based on whether the receiving unit receives the DCI for scheduling UL grant downlink control information before the first time and includes the time of the first time, and / or,

The processing unit determines the type of the PH value carried in the PHR at the first moment according to whether the sending unit includes non-dynamically scheduled uplink transmission within the transmission time period where the first UL grant is located.

The processing unit is further configured to determine that the size of the first UL grant can accommodate the size of the PHR.

The receiving unit is further configured to receive indication information, which is used to indicate whether the communication device reports a Type 2 PH of a cell, where the cell is a secondary cell PUCCH under a new air interface NR base station that supports a physical uplink control channel. SCell

In some embodiments, the format of the PHR includes:

Type 2 PH domain. The Type 2 PH domain is used to report the cell, and is not used to report cells other than the cell to report the Type 2 PH of the cell.

The processing unit is further configured to generate a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and the bitmap is used to indicate a PH carried in the PHR and a first number of activated BWPs. Mapping relations.

Further, the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.

Optionally, when the cell is a special cell SpCell or a secondary cell PUCCH SCell that supports a physical uplink control channel, and at least one BWP of multiple activated BWPs on the cell supports PUCCH transmission, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type 2 PH, and a mapping relationship between multiple activated BWPs and multiple Type 1 or Type 3 PHs;

When the cell is a cell other than the SpCell and the PUCCH and SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type1 or Type3 PH.

The processing unit is further configured to determine the value of X according to the first instruction information, and compare the size of the service data unit CCCH SDU of the common control channel included in the MAC PDU carried in the Msg3 message during the random access process of the communication device; And determining whether the size of the CCCH SDU and the value of X are equal to determine whether the MAC subheader included in the MAC PDU carries an L field, where the L field is used to determine the size of the CCCH SDU, and X is Positive integer.

Further, the first indication information is further used to indicate a size of a minimum uplink grant UL grant for the Msg3 message. The determining, by the processing unit, the value of X according to the first instruction information includes: determining, by the processing unit, the minimum uplink authorized resource UL grant size of the Msg3 message according to the first instruction information, and determining the size of the minimum UL grant resource according to the minimum UL grant The value of X.

The receiving unit 1102 is further configured to receive the first indication information.

Further, the processing unit determining whether the MAC subheader included in the MAC PDU carries the L field includes: the processing unit determines the value of X according to the size of the minimum uplink grant UL grant, and determines whether the CCCH SDU is related to X Whether the values are equal determines whether the MAC subheader included in the MAC PDU carries the L domain.

The sending unit 1103 is further configured to send fourth instruction information, where the fourth instruction information is used to indicate a size of the CCCH SDU.

FIG. 15 is a schematic structural diagram of a network device according to an embodiment of the present application. The network device includes a processor 1201, an application processor, a memory user interface, and some other components (including devices such as a power source not shown). In FIG. 15, the foregoing processing unit may be the processor 1201 and perform corresponding functions. The sending unit and / or the receiving unit may be a wireless transceiver 1203 in the figure, which performs a corresponding function through an antenna. It can be understood that each element shown in the figure is only schematic, and is not a necessary element for completing the embodiments of the present application.

FIG. 16 is another schematic structural diagram of a network device according to an embodiment of the present application. As an example, the network device may perform functions similar to the processor in FIG. 15. In FIG. 16, the network device includes a processor, a sending data processor, and a processor. In FIG. 16, the foregoing processing unit may be the processor 1301 and perform corresponding functions. The sending unit may be the sending data processor 1303 in FIG. 16, and the receiving unit may be the receiving data processor 1305 in FIG. 16. Although a channel encoder and a channel decoder are shown in the figure, it can be understood that these modules do not constitute a restrictive description of the embodiments of the present application, but are only schematic.

FIG. 17 is another schematic structural diagram of a network device according to an embodiment of the present application. The network device 1400 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The network device in the embodiment of the present application may be used as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1403 and an interface 1404. The processor 1403 performs the functions of the processing unit, and the interface 1404 performs the functions of the sending unit and / or receiving unit. As another variation, the modulation subsystem includes a memory 1406, a processor 1403, and a program stored on the memory and executable on the processor, where the processor executes the network device in the method described in FIGS. 4 to 8 Steps to perform. It should be noted that the memory 1406 may be non-volatile or volatile, and its location may be located inside the modulation subsystem or in the processing device 1400, as long as the memory 1406 can be connected to the memory 1406. The processor 1403 is sufficient.

As another form of the embodiment of the present application, a computer-readable storage medium is provided, which stores instructions that execute the steps performed by a network device in the methods described in FIG. 4 to FIG. 8 when the instructions are executed.

FIG. 18 is another schematic structural diagram of a network device according to an embodiment of the present application. The network device may perform the steps of the network-side device in the method described in FIG. 4 to FIG. 8. The network device 1500 includes:

A processing unit 1501 is configured to generate instruction information, where the instruction information is used to indicate whether a communication device reports a Type 2 PH of a cell;

The sending unit 1503 is configured to send instruction information to the communication device, where the cell is a secondary cell PUCCH_SCell supporting a physical uplink control channel under a new air interface NR base station.

The format of the power headroom report PHR includes:

In some embodiments, the Type 2 PH domain is used to report the cell, and is not used to report the Type 2 PH of a cell other than the cell.

A processing unit 1501 is configured to parse a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and the bitmap is used to indicate a first mapping between a PH carried in the PHR and multiple activated BWPs relationship.

A mapping relationship between the at least one BWP and at least one Type 2 PH, and a mapping relationship between the multiple activated BWPs and multiple Type 1 or Type 3 PHs;

Optionally, the network device further includes a receiving unit 1502, which is used for PHR sent by the communication device after the festival and data transmitted by the communication device in an uplink.

The sending unit 1503 is further configured to send first indication information, where the first indication information is used to indicate a value of X, and the value of X is used to include in a MAC PDU carried in a Msg3 message during a random access process with a communication device. The size of the service data unit CCCH of the common control channel is compared, and whether the result of the comparison is equal is used to determine whether the size of the CCCH or SDU is used to indicate whether the MAC subheader included in the MAC PDU carries the L domain, where: The L field is used to determine the size of the CCCH SDU.

Further, the first indication information is further used to indicate a size of a minimum uplink grant UL grant for the Msg3 message.

Further, the determining whether an L field is carried in a MAC subheader included in the MAC PDU includes:

The receiving unit 1502 is configured to receive fourth instruction information, where the fourth instruction information is used to indicate a size of the CCCH SDU.

It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), or Erase programmable read-only memory (EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access Access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory Fetch memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct RAMbus RAM, DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions according to the embodiments of the present application are wholly or partially generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, a computer, a server, or a data center. Transmission by wire (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, a data center, and the like, including one or more sets of available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium may be a solid state drive.

It should be understood that the term “and / or” herein is only an association relationship describing an associated object, and indicates that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this text generally indicates that the related objects are an "or" relationship.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of the present application. The implementation process constitutes any limitation.

Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions in the embodiments of the present application. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit. When the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A communication method, comprising:

The power headroom report PHR of the communication device is triggered;

Determining, by the communication device, a first uplink authorized resource for transmitting the PHR;

The communication device determines a type of power headroom PH value carried in the PHR at a first moment, where the first moment includes a time at which the communication device starts a logical channel priority LCP process based on the first uplink authorized resource. The time or the time when the MAC PDU of the medium access control protocol data unit starts to be assembled, the MAC PDU includes the PHR and is transmitted on the first uplink authorized resource;

The communication device sends the PHR to a network device.
The communication method according to claim 1, wherein the determining, by the communication device at the first moment, the type of PH value carried in the PHR comprises:

The communication device receives, according to whether the downlink control information DCI for scheduling the uplink authorized resource is received before the first time and within a time including the first time, and / or,

The communication device determines, at a first moment, a type of a PH value carried in the PHR according to whether a non-dynamically scheduled uplink transmission is included in a transmission time period in which the first uplink authorized resource is located.
The communication method according to claim 1 or 2, wherein the method further comprises:

The communication device determines that the size of the first uplink authorized resource can accommodate the size of the PHR.
The communication method according to any one of claims 1-3, wherein the method further comprises:

The communication device receives indication information, where the indication information is used to indicate whether the communication device reports a Type 2 PH of a cell, where the cell is a secondary cell PUCCH SCell that supports a physical uplink control channel under a new air interface NR base station.
The communication method according to claim 4, wherein the format of the PHR comprises:

Type 2 PH domain. The Type 2 PH domain is used to report the cell, and is not used to report the Type 2 PH of a cell other than the cell.
The communication method according to any one of claims 1-5, wherein the method further comprises:

The communication device generates a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and the bitmap is used to indicate a first mapping relationship between a PH carried in the PHR and multiple activated BWPs.
The communication method according to claim 6, wherein the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.
The communication method according to claim 6 or 7, wherein the method further comprises:

When the cell is a special cell SpCell or a secondary cell PUCCH or Scell that supports a physical uplink control channel, and at least one of a plurality of activated BWPs on the cell supports PUCCH transmission, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type2 PH, and a mapping relationship between the multiple activated BWPs and multiple Type1 or Type3 PHs;

When the cell is a cell other than the SpCell and the PUCCH and SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type1 or Type3 PH.
A communication method, comprising:

The network device generates instruction information, where the instruction information is used to indicate whether the communication device reports a Type 2 power headroom PH of the cell;

The network device sends the instruction information to the communication device, wherein the cell is a secondary cell PUCCH / SCell supporting a physical uplink control channel under a new air interface NR base station.
The communication method according to claim 9, wherein a format of the power headroom report PHR comprises:

Type 2 PH domain. The Type 2 PH domain is used to report the cell, and is not used to report the Type 2 PH of a cell other than the cell.
The communication method according to claim 9 or 10, wherein the method further comprises:

The network device parses a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and the bitmap is used to indicate a first mapping relationship between a PH carried in the PHR and multiple activated BWPs.
The communication method according to claim 11, wherein the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.
The communication method according to claim 11 or 12, wherein the method further comprises:

When the cell is a special cell SpCell or a secondary cell PUCCH or SCell that supports a physical uplink control channel, and at least one of a plurality of activated BWPs on the cell supports PUCCH transmission, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type2 PH, and a mapping relationship between the multiple activated BWPs and multiple Type1 or Type3 PHs;

When the cell is a cell other than the SpCell and the PUCCH and SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type1 or Type3 PH.
A communication device, comprising:

A processing unit, configured to trigger a power headroom report PHR of the communication device;

The processing unit is further configured to determine a first uplink authorized resource for transmitting the PHR;

The processing unit is further configured to determine a power headroom PH value type carried in the PHR at a first moment, where the first moment includes the communication device starting a logical channel priority based on the first uplink authorized resource The moment of the LCP process or the time when the MAC PDU of the medium access control protocol data unit starts to be assembled, the MAC PDU includes the PHR and is transmitted on the first uplink authorized resource;

A sending unit, configured to send the PHR to a network device.
The communication device according to claim 14, wherein the processing unit determining the PH value type carried in the PHR at the first moment comprises:

The processing unit is based on whether the receiving unit has received the downlink control information DCI for scheduling the uplink grant resource before the first time and includes the time of the first time, and / or,

The processing unit determines, at a first moment, the type of the PH value carried in the PHR according to whether the sending unit includes a non-dynamically scheduled uplink transmission within a transmission time period in which the first uplink authorized resource is located.
The communication device according to claim 14 or 15, wherein the processing unit is further configured to determine that the size of the first uplink authorized resource can accommodate the size of the PHR.
The communication device according to any one of claims 14-16, wherein the communication device further comprises:

A receiving unit, configured to receive indication information, the indication information is used to indicate whether the communication device reports a Type 2 PH of a cell, where the cell is a secondary cell PUCCH SCell supporting a physical uplink control channel under a new air interface NR base station .
The communication device according to claim 17, wherein the format of the PHR comprises:

Type 2 PH domain. The Type 2 PH domain is used to report the cell, and is not used to report the Type 2 PH of a cell other than the cell.
The communication device according to any one of claims 14 to 18, wherein the processing unit is further configured to generate a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and the A bitmap is used to indicate a first mapping relationship between the PH carried in the PHR and multiple activated BWPs.
The communication device according to claim 19, wherein the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.
The communication device according to claim 19 or 20, wherein

When the cell is a special cell SpCell or a secondary cell PUCCH or SCell that supports a physical uplink control channel, and at least one of a plurality of activated BWPs on the cell supports PUCCH transmission, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type2 PH, and a mapping relationship between the multiple activated BWPs and multiple Type1 or Type3 PHs;

When the cell is a cell other than the SpCell and the PUCCH and SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type1 or Type3 PH.
A network device, comprising:

A processing unit, configured to generate instruction information, where the instruction information is used to indicate whether a communication device reports a Type 2 PH of a cell;

A sending unit is configured to send the indication information to the communication device, wherein the cell is a secondary cell PUCCH / SCell supporting a physical uplink control channel under a new air interface NR base station.
The network device according to claim 22, wherein a format of the power headroom report PHR comprises:

Type 2 PH domain. The Type 2 PH domain is used to report the cell, and is not used to report the Type 2 PH of a cell other than the cell.
The network device according to claim 22 or 23, wherein the network device further comprises:

A processing unit, configured to parse a PHR format according to a preset rule, wherein the PHR format carries a bitmap bitmap, and the bitmap is used to indicate a first mapping relationship between a PH carried in the PHR and multiple activated BWPs .
The network device according to claim 24, wherein the bitmap is further used to indicate a second mapping relationship between the multiple activated BWPs and at least one cell.
The network device according to claim 24 or 25, wherein:

When the cell is a special cell SpCell or a secondary cell PUCCH or SCell that supports a physical uplink control channel, and at least one of a plurality of activated BWPs on the cell supports PUCCH transmission, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type2 PH, and a mapping relationship between the multiple activated BWPs and multiple Type1 or Type3 PHs;

When the cell is a cell other than the SpCell and the PUCCH and SCell, and there is at least one activated BWP on the cell, the first mapping relationship includes:

A mapping relationship between the at least one BWP and at least one Type1 or Type3 PH.
A communication device includes a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements any of claims 1 to 8 when the processor executes the program. A communication method according to one item.
A communication device includes a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements any of claims 9 to 13 when the processor executes the program. A communication method according to one item.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the program is executed by a processor, the communication method according to any one of claims 1 to 8 is implemented.
A computer-readable storage medium having stored thereon a computer program, characterized in that, when the program is executed by a processor, the communication method according to any one of claims 9 to 13 is implemented.
A communication system includes the communication device according to any one of claims 14-21, and the network device according to any one of claims 22-26.