WO2019157997A1 - Communication method and device - Google Patents

Abstract

Embodiments of the present application provide a communication method and device. The method comprises: a first terminal determining a power parameter value of the first terminal, the power parameter value of the first terminal comprising a desired received power of the first terminal; and the first terminal sending first information to a second terminal, the first information being used to indicate at least the power parameter value of the first terminal. After receiving the first information, the second terminal determines, according to the power parameter value of the first terminal indicated by the first information, transmitted power of the second terminal communicating with the first terminal. Since the transmitted power is determined on the basis of the power parameter value of the first terminal,<b/>received power of the first terminal receiving information from the second terminal is close to the desired received power of the first terminal, thereby improving a success rate of communication between the second terminal and the first terminal and improving receiving performance of the first terminal.

Description

Communication method and device Technical field

The present application relates to the field of communications technologies, and in particular, to a communication method and apparatus.

Background technique

The device to device (D2D) technology is a technology for direct communication between the device and the device. The two devices can directly send messages and corresponding control information without passing through the base station. V2X (Vehicle to Everything, V2X) is a channel structure and signal enhancement based on D2D to support high-speed vehicle to vehicle (V2V) communication services. A typical application scenario of the D2D (Further enhancement on D2D, FeD2D) is a UE-to-network relay scenario, that is, a relay terminal or a relay UE, and a relay base station. The data and control information between the (eNB) and the remote terminal (Remote UE) is mainly used to apply the D2D technology to the scenario of the low-cost device. In the current FeD2D, there are two possible relay modes: Bidirectional relaying mode and Unidirectional relaying mode. As shown in Figure 1, in the two-way relay mode, the Relay UE can Uplink signaling and data between the eNB and the Remote UE, that is, the downlink signaling and data of the eNB to the Remote UE can be forwarded to the Remote UE through the relay UE, and the uplink signaling of the Remote UE to the eNB is performed by the Relay UE. Data can also be forwarded to the eNB through the uplink through the Relay UE. In the one-way relay mode, the Remote UE directly receives the downlink signaling and data from the eNB, and the Relay UE only forwards the uplink signaling and data of the Remote UE to the eNB.

One of the main purposes of the UE-NW relay is to reduce the power consumption of the Remote UE. The main means is to control the transmit power of the Remote UE to determine that the communication of the sidelink between the UEs does not interfere with the uplink of the cellular communication. The signal transmission power of the communication between the UE and the UE is generally determined according to the open loop power control procedure. Currently, the parameters of the open loop power control are set according to the capability of the eNB, and then the receiving capability of the UE is different from the receiving capability of the base station. The receiving performance of the UE and the base station is different under the same receiving power. Therefore, the transmitting power determined by the Remote UE according to the existing manner is likely to cause the receiving UE to fail to receive.

Summary of the invention

The embodiment of the present invention provides a communication method and apparatus, which are used to improve the success rate of communication between a relay UE and a Remote UE, and improve reception performance of the relay UE.

In a first aspect, the embodiment of the present application provides a communication method, including: determining, by a first terminal, a power parameter value of the first terminal; and transmitting, to the second terminal, first information, where the first information is used to indicate at least The power parameter value of the first terminal, where the power parameter value of the first terminal includes a desired received power of the first terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value of the first terminal indicated by the first information, where the transmit power is based on a power parameter value of the first terminal Determining, therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the receiving of the first terminal. performance.

In a first embodiment of the first aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the first aspect, before the first terminal sends the first information to the second terminal, the power parameter value of the first terminal and the power parameter of the network device received from the network device are further Value, determine the power offset value. The first information includes: second information; the second information is used to indicate at least the power offset value between a power parameter value of the first terminal and a power parameter value of the network device. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the first aspect, in the third embodiment of the first aspect, the second information includes the power offset value; or the second information includes a power offset factor, the A terminal further determines the power offset factor based on the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the third embodiment of the first aspect, in the fourth embodiment of the first aspect, the first terminal determines the power offset factor according to the power offset value, including: the first terminal according to the first terminal The power offset value and the preset power step size determine the power offset factor.

According to any one of the second to fourth embodiments of the first aspect, in the fifth embodiment of the first aspect, the first information further includes: a power parameter value of the network device.

In a second aspect, an embodiment of the present application provides a communication method, including:

The first terminal first determines a power parameter value P _{0 of} the first terminal, and then sends the first information to the second terminal. The first information is used to indicate a power parameter value P ₀ of the first terminal, and the power parameter value P ₀ of the first terminal includes a desired received power of the first terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value P ₀ of the first terminal indicated by the first information, where the transmit power is based on the power of the first terminal Determined by the parameter value P ₀ , the received power of the first terminal receiving information from the second terminal is close to the expected received power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the first terminal. Receive performance.

In a first embodiment of the second aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the second aspect, the first terminal sends the first information to the second terminal, and further, according to the power parameter value P _{0 of} the first terminal, and the network device received from the network device The power parameter value determines the power offset value. The first information includes: second information; the second information is used to indicate at least the power offset value between the power parameter value P _{0 of} the first terminal and a power parameter value of the network device. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the second aspect, in a third embodiment of the second aspect, the second information comprises the power offset value. Or the second information includes a power offset factor, and the method further includes: determining, by the first terminal, the power offset factor according to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the third embodiment of the second aspect, in the fourth embodiment of the second aspect, the first terminal determines the power offset factor according to the power offset value, including: the first terminal according to the first terminal The power offset value and the preset power step size determine the power offset factor.

According to any one of the second to fourth embodiments of the second aspect, in the fifth embodiment of the second aspect, the first information further includes: a power parameter value of the network device.

In a third aspect, an embodiment of the present invention provides a communication method, including:

The second terminal first receives the first information, where the first information is used to indicate the power parameter value of the first terminal, and the transmit power of the second terminal and the first terminal is determined according to the first information. The power parameter value of the first terminal includes a desired received power of the first terminal. Since the transmit power is determined based on the power parameter value of the first terminal, the received power of the first terminal receiving information from the second terminal is close to the expected received power of the first terminal, thereby improving the second terminal and the first The success rate of terminal communication improves the receiving performance of the first terminal.

In a first embodiment of the third aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the third aspect, the first information includes: second information; the second information is used to indicate at least between a power parameter value of the first terminal and a power parameter value of the network device. Power offset value. Determining, by the second terminal, the transmit power of the second terminal to communicate with the first terminal, according to the first information, the second terminal first, according to the second information in the first information Determining, according to a power parameter value of the network device, received by the network device or received from the first terminal, a power parameter value of the first terminal, and determining, according to the power parameter value of the first terminal, the The transmit power of the second terminal in communication with the first terminal. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the third aspect, in a third embodiment of the third aspect, the second information comprises the power offset value.

According to a second embodiment of the third aspect, in a fourth embodiment of the third aspect, the second information comprises a power offset factor; wherein the power offset factor is related to the power offset value. Determining, by the second terminal, the power of the first terminal according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal The parameter value includes: determining, by the second terminal, the power offset value according to the power offset factor; and determining, according to the power offset value and the power parameter value of the network device, the first The power parameter value of the terminal. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the second embodiment of the third aspect, in the fifth embodiment of the third aspect, the second terminal determines the power offset value according to the power offset factor, including: the second terminal according to The power offset factor and the preset power step size determine the power offset value.

According to any of the second to fifth embodiments of the third aspect, in the sixth embodiment of the third aspect, the first information further includes: a power parameter value of the network device.

According to any one of the first to sixth embodiments of the third aspect or the third aspect, in the seventh embodiment of the third aspect, the second terminal receives the first information, including: The second terminal receives the first information from the first terminal; or the second terminal receives the first information from a network device, where the first information is reported by the first terminal to the network device .

In a fourth aspect, an embodiment of the present invention provides a communication method, including:

The second terminal first receives the first information, where the first information is used to indicate the power parameter value P ₀ of the first terminal, and the power parameter value P ₀ of the first terminal includes the expected received power of the first terminal; And determining, according to the first information, a transmit power of the second terminal to communicate with the first terminal. Since the transmit power is determined based on the power parameter value P ₀ of the first terminal, the received power of the first terminal receiving information from the second terminal is close to the expected received power of the first terminal, thereby improving the second terminal and The success rate of the first terminal communication improves the receiving performance of the first terminal.

In a first embodiment of the fourth aspect, the first information includes: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the fourth aspect, the first information includes: second information; the second information is used to indicate at least a power parameter value P _{0 of} the first terminal and a power parameter value of the network device. The power offset value between. Determining, by the second terminal, the transmit power of the second terminal to communicate with the first terminal, according to the first information, the second terminal first, according to the second information in the first information And determining a power parameter value P _{0 of} the first terminal from a power parameter value of the network device received from the network device or received from the first terminal; and further, according to the power parameter value P _{0 of} the first terminal And determining a transmit power of the second terminal to communicate with the first terminal. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the fourth aspect, in a third embodiment of the fourth aspect, the second information comprises the power offset value.

According to a second embodiment of the fourth aspect, in a fourth embodiment of the fourth aspect, the second information comprises a power offset factor; wherein the power offset factor is related to the power offset value. Determining, by the second terminal, the power of the first terminal according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal The parameter value P ₀ includes: the second terminal first determining the power offset value according to the power offset factor; and determining, according to the power offset value and the power parameter value of the network device, The power parameter value P _{0 of the} first terminal. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the second embodiment of the fourth aspect, in the fifth embodiment of the fourth aspect, the second terminal determines the power offset value according to the power offset factor, including: the second terminal according to the second terminal The power offset factor and the preset power step size determine the power offset value.

According to any of the second to fifth embodiments of the fourth aspect, in the sixth embodiment of the fourth aspect, the first information further includes: a power parameter value of the network device.

According to any one of the first to sixth embodiments of the fourth aspect or the fourth aspect, in the seventh embodiment of the fourth aspect, the second terminal receives the first information, including: The second terminal receives the first information from the first terminal; or the second terminal receives the first information from a network device, where the first information is reported by the first terminal to the network device .

In a fifth aspect, an embodiment of the present application provides a communication method, including:

The network device first receives the first information from the first terminal, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal. And transmitting the first information to the second terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value of the first terminal indicated by the first information, where the transmit power is based on a power parameter value of the first terminal Determining, therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the receiving of the first terminal. performance.

In a first embodiment of the fifth aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the fifth aspect, the first information includes: second information; the second information is used to indicate at least a power parameter value of the first terminal and a power parameter value of the network device The power offset value between. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the fifth aspect, in a third embodiment of the fifth aspect, the second information comprises the power offset value. Alternatively, the second information includes a power offset factor, the power offset factor being related to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the second embodiment or the third embodiment of the fifth aspect, in the fourth embodiment of the fifth aspect, the first information further includes: a power parameter value of the network device.

According to the second embodiment or the third embodiment of the fifth aspect, in the fifth embodiment of the fifth aspect, the network device further sends the power parameter value of the network device to the second terminal.

In a sixth aspect, an embodiment of the present application provides a communication method, including:

The network device first receives the first information from the first terminal, where the first information is used to indicate at least the power parameter value P ₀ of the first terminal, and the power parameter value P ₀ of the first terminal includes the first terminal Expecting to receive power; and transmitting the first information to the second terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value P ₀ of the first terminal indicated by the first information, where the transmit power is based on the power of the first terminal The parameter value P _{0 is} determined. Therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the Receive performance of a terminal.

In a first embodiment of the sixth aspect, the first information includes: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the sixth aspect, the first information includes: second information; the second information is used to at least indicate a power parameter value P _{0 of} the first terminal and a power parameter of the network device The power offset value between values. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the sixth aspect, in a third embodiment of the sixth aspect, the second information comprises the power offset value. Alternatively, the second information includes a power offset factor, the power offset factor being related to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the second or third embodiment of the sixth aspect, in the fourth embodiment of the sixth aspect, the first information further includes: a power parameter value of the network device.

According to the second or third embodiment of the sixth aspect, in the fifth embodiment of the sixth aspect, the network device further sends the power parameter value of the network device to the second terminal.

In a seventh aspect, an embodiment of the present application provides a communications apparatus, including: a processing module and a sending module.

The processing module is configured to determine a power parameter value of the first terminal, where the power parameter value of the first terminal includes a desired received power of the first terminal. And a sending module, configured to send, to the second terminal, first information, where the first information is used to indicate at least a power parameter value of the first terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value of the first terminal indicated by the first information, where the transmit power is based on a power parameter value of the first terminal Determining, therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the receiving of the first terminal. performance.

In a first embodiment of the seventh aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the seventh aspect, the processing module is further configured to: before the transmitting module sends the first information to the second terminal, according to the power parameter value of the first terminal and received from the network device The power parameter value of the network device determines a power offset value. The first information includes: second information; the second information is used to indicate at least the power offset value between a power parameter value of the first terminal and a power parameter value of the network device. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the seventh aspect, in a third embodiment of the seventh aspect, the second information comprises the power offset value. Or the second information includes a power offset factor, and the processing module is further configured to: determine the power offset factor according to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the third embodiment of the seventh aspect, in the fourth embodiment of the seventh aspect, the processing module is configured to: determine the power offset according to the power offset value and a preset power step size factor.

According to any of the second to fourth embodiments of the seventh aspect, in the fifth embodiment of the seventh aspect, the first information further includes: a power parameter value of the network device.

In an eighth aspect, an embodiment of the present application provides a communications apparatus, including: a processing module and a sending module.

The processing module is configured to determine a power parameter value P ₀ of the first terminal, where the power parameter value P ₀ of the first terminal includes a desired received power of the first terminal. And a sending module, configured to send, to the second terminal, the first information, where the first information is used to indicate at least the power parameter value P _{0 of} the first terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value P ₀ of the first terminal indicated by the first information, where the transmit power is based on the power of the first terminal The parameter value P _{0 is} determined. Therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the Receive performance of a terminal.

In a first embodiment of the eighth aspect, the first information includes: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the eighth aspect, the processing module is further configured to: according to the power parameter value P _{0 of} the first terminal and the slave network device, before the sending module sends the first information to the second terminal The received power parameter value of the network device determines a power offset value. The first information includes: second information; the second information is used to indicate at least the power offset value between the power parameter value P _{0 of} the first terminal and a power parameter value of the network device. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the eighth aspect, in the third embodiment of the eighth aspect, the second information includes the power offset value. Or the second information includes a power offset factor, and the processing module is further configured to: determine the power offset factor according to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the third embodiment of the eighth aspect, in the fourth embodiment of the eighth aspect, the processing module is configured to: determine the power offset according to the power offset value and a preset power step size factor.

According to any of the second to fourth embodiments of the eighth aspect, in the fifth embodiment of the eighth aspect, the first information further includes: a power parameter value of the network device.

In a ninth aspect, the embodiment of the present application provides a communication apparatus, including: a receiving module and a processing module.

The receiving module is configured to receive the first information, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal. And a processing module, configured to determine, according to the first information, a transmit power that the second terminal communicates with the first terminal. Since the transmit power is determined based on the power parameter value of the first terminal, the received power of the first terminal receiving information from the second terminal is close to the expected received power of the first terminal, thereby improving the second terminal and the first The success rate of terminal communication improves the receiving performance of the first terminal.

In a first embodiment of the ninth aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the ninth aspect, the first information includes: second information; the second information is used to indicate at least between a power parameter value of the first terminal and a power parameter value of the network device. Power offset value. The processing module is specifically configured to: determine, according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal, a power parameter value of the terminal; and determining, according to the power parameter value of the first terminal, a transmit power of the second terminal to communicate with the first terminal. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the ninth aspect, in the third embodiment of the ninth aspect, the second information comprises the power offset value.

According to a second embodiment of the ninth aspect, in the fourth embodiment of the ninth aspect, the second information comprises a power offset factor; wherein the power offset factor is related to the power offset value. The processing module is specifically configured to: first determine the power offset value according to the power offset factor; and determine, according to the power offset value and the power parameter value of the network device, the first terminal Power parameter value.

According to the second embodiment of the ninth aspect, in the fifth embodiment of the ninth aspect, the processing module is configured to: determine the power offset according to the power offset factor and a preset power step size value.

According to any of the second to fifth embodiments of the ninth aspect, in the sixth embodiment of the ninth aspect, the first information further includes: a power parameter value of the network device.

According to any one of the first to sixth embodiments of the ninth aspect or the ninth aspect, in the seventh embodiment of the ninth aspect, the receiving module is specifically configured to: from the first terminal Receiving the first information; or receiving the first information from a network device, where the first information is reported by the first terminal to the network device.

In a tenth aspect, the embodiment of the present application provides a communications apparatus, including: a receiving module and a processing module.

The receiving module is configured to receive first information, where the first information is used to indicate at least a power parameter value P ₀ of the first terminal, and the power parameter value P ₀ of the first terminal includes a requirement of the first terminal. Receive power. And a processing module, configured to determine, according to the first information, a transmit power that the second terminal communicates with the first terminal. Since the transmit power is determined based on the power parameter value P ₀ of the first terminal, the received power of the first terminal receiving information from the second terminal is close to the expected received power of the first terminal, thereby improving the second terminal and The success rate of the first terminal communication improves the receiving performance of the first terminal.

In a first embodiment of the tenth aspect, the first information comprises: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the tenth aspect, the first information includes: second information; the second information is used to indicate at least the power parameter value P _{0 of} the first terminal and a power parameter value of the network device. The power offset value between. The processing module is specifically configured to: determine, according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal, a power parameter value P _{0 of} a terminal; and determining, according to the power parameter value P _{0 of} the first terminal, a transmit power of the second terminal to communicate with the first terminal. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the tenth aspect, in the third embodiment of the tenth aspect, the second information includes the power offset value.

According to a second embodiment of the tenth aspect, in a fourth embodiment of the tenth aspect, the second information comprises a power offset factor; wherein the power offset factor is related to the power offset value. The processing module is specifically configured to: first determine the power offset value according to the power offset factor; and determine, according to the power offset value and the power parameter value of the network device, the first terminal Power parameter value P ₀ . Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to a second embodiment of the tenth aspect, in a fifth embodiment of the tenth aspect, the processing module is configured to: determine the power offset according to the power offset factor and a preset power step size value.

According to any of the second to fifth embodiments of the tenth aspect, in the sixth embodiment of the tenth aspect, the first information further includes: a power parameter value of the network device.

According to any of the first to sixth embodiments of the tenth or fourth aspect, in the seventh embodiment of the tenth aspect, the receiving module is specifically configured to: from the first terminal Receiving the first information; or receiving the first information from a network device, where the first information is reported by the first terminal to the network device.

It should be noted that the communication device of the seventh aspect or the eighth aspect or the ninth or tenth aspect may be a terminal or a chip applicable to the terminal.

In an eleventh aspect, an embodiment of the present application provides a communications apparatus, including: a receiving module and a sending module.

The receiving module is configured to receive the first information, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes the first terminal. Expected receive power. And a sending module, configured to send the first information to the second terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value of the first terminal indicated by the first information, where the transmit power is based on a power parameter value of the first terminal Determining, therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the receiving of the first terminal. performance.

In a first embodiment of the eleventh aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the eleventh aspect, the first information includes: second information; the second information is used to indicate at least between a power parameter value of the first terminal and a power parameter value of the network device. Power offset value. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the eleventh aspect, in a third embodiment of the eleventh aspect, the second information comprises the power offset value. Alternatively, the second information includes a power offset factor, the power offset factor being related to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

In a fourth embodiment of the eleventh aspect, the first information further includes: a power parameter value of the network device.

According to the second embodiment or the third embodiment of the eleventh aspect, in the fifth embodiment of the eleventh aspect, the sending module is further configured to send the power parameter of the network device to the second terminal value.

In a twelfth aspect, the embodiment of the present application provides a communication apparatus, including: a receiving module and a sending module.

Wherein, the receiving module, configured to receive first information from a first terminal, the first information is at least a power P ₀ parameter value indicative of the first terminal, the power parameter value P ₀ of the first terminal comprises The expected received power of the first terminal. And a sending module, configured to send the first information to the second terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value P ₀ of the first terminal indicated by the first information, where the transmit power is based on the power of the first terminal The parameter value P _{0 is} determined. Therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the Receive performance of a terminal.

In a first embodiment of the twelfth aspect, the first information comprises: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the twelfth aspect, the first information includes: second information; the second information is used to at least indicate a power parameter value P _{0 of} the first terminal and a power parameter value of the network device The power offset value between. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the twelfth aspect, in the third embodiment of the twelfth aspect, the second information includes the power offset value. Alternatively, the second information includes a power offset factor, the power offset factor being related to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the second or third embodiment of the twelfth aspect, in the fourth embodiment of the twelfth aspect, the first information further includes: a power parameter value of the network device.

According to the second or third embodiment of the twelfth aspect, in the fifth embodiment of the twelfth aspect, the transmitting module is further configured to send the power parameter of the network device to the second terminal value.

It should be noted that the communication device of the eleventh or twelfth aspect may be a network device or a chip that can be used for a network device.

In a thirteenth aspect, the embodiment of the present application provides a communication apparatus, including: a processor and a transmitter.

The processor is configured to determine a power parameter value of the first terminal, where the power parameter value of the first terminal includes a desired received power of the first terminal. And a transmitter, configured to send first information to the second terminal, where the first information is used to indicate at least a power parameter value of the first terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value of the first terminal indicated by the first information, where the transmit power is based on a power parameter value of the first terminal Determining, therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the receiving of the first terminal. performance.

In a first embodiment of the thirteenth aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the thirteenth aspect, the processor is further configured to receive, according to a power parameter value of the first terminal, and a network device, before the sending, by the transmitter, the first information to the second terminal The power parameter value of the network device determines a power offset value. The first information includes: second information; the second information is used to indicate at least the power offset value between a power parameter value of the first terminal and a power parameter value of the network device. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the thirteenth aspect, in the third embodiment of the thirteenth aspect, the second information includes the power offset value. Or the second information includes a power offset factor, and the processor is further configured to: determine the power offset factor according to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to a third embodiment of the thirteenth aspect, in the fourth embodiment of the thirteenth aspect, the processor is configured to: determine the power according to the power offset value and a preset power step size Offset factor.

In a possible design, the first information further includes: a power parameter value of the network device.

In a fourteenth aspect, the embodiment of the present application provides a communication apparatus, including: a processor and a transmitter.

The processor is configured to determine a power parameter value P _{0 of} the first terminal, where the power parameter value P ₀ of the first terminal includes a desired received power of the first terminal. And a transmitter, configured to send first information to the second terminal, where the first information is used to indicate at least the power parameter value P _{0 of} the first terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value P ₀ of the first terminal indicated by the first information, where the transmit power is based on the power of the first terminal The parameter value P _{0 is} determined. Therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the Receive performance of a terminal.

In a first embodiment of the fourteenth aspect, the first information includes: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the fourteenth aspect, the processor is further configured to: according to the power parameter value P _{0 of} the first terminal and the slave network, before the transmitter sends the first information to the second terminal The power parameter value of the network device received by the device determines a power offset value. The first information includes: second information; the second information is used to indicate at least the power offset value between the power parameter value P _{0 of} the first terminal and a power parameter value of the network device. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the fourteenth aspect, in the third embodiment of the fourteenth aspect, the second information includes the power offset value. Or the second information includes a power offset factor, and the processor is further configured to: determine the power offset factor according to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to a third embodiment of the fourteenth aspect, in the fourth embodiment of the fourteenth aspect, the processor is configured to: determine the power according to the power offset value and a preset power step size Offset factor.

In a fifth embodiment of the fourteenth aspect, the first information further includes: a power parameter value of the network device.

In a fifteenth aspect, the embodiment of the present application provides a communication apparatus, including: a receiver and a processor.

The receiver is configured to receive the first information, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal. And a processor, configured to determine, according to the first information, a transmit power that the second terminal communicates with the first terminal. Since the transmit power is determined based on the power parameter value of the first terminal, the received power of the first terminal receiving information from the second terminal is close to the expected received power of the first terminal, thereby improving the second terminal and the first The success rate of terminal communication improves the receiving performance of the first terminal.

In a first embodiment of the fifteenth aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the fifteenth aspect, the first information includes: second information; the second information is used to indicate at least between a power parameter value of the first terminal and a power parameter value of the network device. Power offset value. The processor is specifically configured to: determine, according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal, a power parameter value of the terminal; and determining, according to the power parameter value of the first terminal, a transmit power of the second terminal to communicate with the first terminal. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the fifteenth aspect, in the third embodiment of the fifteenth aspect, the second information includes the power offset value.

According to a second embodiment of the fifteenth aspect, in the fourth embodiment of the fifteenth aspect, the second information includes a power offset factor; wherein the power offset factor is related to the power offset value . The processor is specifically configured to: first determine the power offset value according to the power offset factor; and determine, according to the power offset value and a power parameter value of the network device, the first terminal Power parameter value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to a second embodiment of the fifteenth aspect, in a fifth embodiment of the fifteenth aspect, the processor is configured to: determine the power according to the power offset factor and a preset power step size Offset value.

In a sixth embodiment of the fifteenth aspect, the first information further includes: a power parameter value of the network device.

According to any one of the first to sixth embodiments of the fifteenth aspect or the fifteenth aspect, in the seventh embodiment of the fifteenth aspect, the receiver is specifically configured to: Receiving, by the first terminal, the first information; or receiving, by the network device, the first information, where the first information is reported by the first terminal to the network device.

In a sixteenth aspect, the embodiment of the present application provides a communication apparatus, including: a receiver and a processor.

The receiver is configured to receive the first information, where the first information is used to indicate at least a power parameter value P ₀ of the first terminal, and the power parameter value P ₀ of the first terminal includes a requirement of the first terminal. Receive power. And a processor, configured to determine, according to the first information, a transmit power that the second terminal communicates with the first terminal. Since the transmit power is determined based on the power parameter value P ₀ of the first terminal, the received power of the first terminal receiving information from the second terminal is close to the expected received power of the first terminal, thereby improving the second terminal and The success rate of the first terminal communication improves the receiving performance of the first terminal.

In a first embodiment of the sixteenth aspect, the first information comprises: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the sixteenth aspect, the first information includes: second information; the second information is used to at least indicate a power parameter value P _{0 of} the first terminal and a power parameter value of the network device The power offset value between. The processor is specifically configured to: determine, according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal, a power parameter value P _{0 of} a terminal; and determining, according to the power parameter value P _{0 of} the first terminal, a transmit power of the second terminal to communicate with the first terminal. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the sixteenth aspect, in the third embodiment of the sixteenth aspect, the second information comprises the power offset value.

According to a second embodiment of the sixteenth aspect, in the fourth embodiment of the sixteenth aspect, the second information includes a power offset factor; wherein the power offset factor is related to the power offset value . The processor is specifically configured to: first determine the power offset value according to the power offset factor; and determine, according to the power offset value and a power parameter value of the network device, the first terminal Power parameter value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to a second embodiment of the sixteenth aspect, in a fifth embodiment of the sixteenth aspect, the processor is configured to: determine the power according to the power offset factor and a preset power step size Offset value.

In a sixth embodiment of the sixteenth aspect, the first information further includes: a power parameter value of the network device.

According to the sixteenth aspect or any one of the first to sixth embodiments of the fourth aspect, in the seventh embodiment of the sixteenth aspect, the receiver is specifically configured to: from the Receiving, by the terminal, the first information; or receiving, by the network device, the first information, where the first information is reported by the first terminal to the network device.

It should be noted that the communication device of the thirteenth aspect or the fourteenth aspect or the fifteenth aspect or the sixteenth aspect may be a terminal or a chip usable for the terminal.

In a seventeenth aspect, the embodiment of the present application provides a communication apparatus, including: a receiver and a transmitter.

The receiver is configured to receive the first information from the first terminal, where the first information is used to at least indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes the first terminal Expected receive power. And a transmitter, configured to send the first information to the second terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value of the first terminal indicated by the first information, where the transmit power is based on a power parameter value of the first terminal Determining, therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the receiving of the first terminal. performance.

In a first embodiment of the seventeenth aspect, the first information includes: a power parameter value of the first terminal. Therefore, the second terminal can directly obtain the power parameter value of the first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the seventeenth aspect, the first information includes: second information; the second information is used to indicate at least between a power parameter value of the first terminal and a power parameter value of the network device. Power offset value. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second embodiment of the seventeenth aspect, in the third embodiment of the seventeenth aspect, the second information includes the power offset value. Alternatively, the second information includes a power offset factor, the power offset factor being related to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to the second or third embodiment of the seventeenth aspect, in the fourth embodiment of the seventeenth aspect, the first information further includes: a power parameter value of the network device.

According to the second or third embodiment of the seventeenth aspect, in the fifth embodiment of the seventeenth aspect, the transmitter is further configured to send the power parameter of the network device to the second terminal value.

In an eighteenth aspect, the embodiment of the present application provides a communication apparatus, including: a receiver and a transmitter.

Wherein, a receiver for receiving first information from a first terminal, the first information is at least a power P ₀ parameter value indicative of the first terminal, the power parameter value P ₀ of the first terminal comprises The expected received power of the first terminal. And a transmitter, configured to send the first information to the second terminal. And causing, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the power parameter value P ₀ of the first terminal indicated by the first information, where the transmit power is based on the power of the first terminal The parameter value P _{0 is} determined. Therefore, the received power of the first terminal receiving information from the second terminal is close to the expected receiving power of the first terminal, thereby improving the success rate of communication between the second terminal and the first terminal, and improving the Receive performance of a terminal.

In a first embodiment of the eighteenth aspect, the first information comprises: a power parameter value P _{0 of} the first terminal. Therefore, the second terminal can directly obtain the power parameter value P _{0 of the} first terminal according to the first information, and reduce the processing amount of the second terminal.

In a second embodiment of the eighteenth aspect, the first information includes: second information; the second information is used to at least indicate a power parameter value P _{0 of} the first terminal and a power parameter value of the network device The power offset value between. Since the power offset value indicated by the second information is a relative value, the size of the second information included in the first information is small, which saves transmission overhead.

According to a second or third embodiment of the eighteenth aspect, in the fourth embodiment of the eighteenth aspect, the second information includes the power offset value. Alternatively, the second information includes a power offset factor, the power offset factor being related to the power offset value. Since the second information includes a power offset factor, the size of the second information is reduced, and the transmission overhead is further saved.

According to a second embodiment of the eighteenth aspect, in the third embodiment of the eighteenth aspect, the first information further includes: a power parameter value of the network device.

According to the second or third embodiment of the eighteenth aspect, in the fifth embodiment of the eighteenth aspect, the transmitter is further configured to send the power parameter of the network device to the second terminal value.

It should be noted that the communication device of the seventeenth aspect or the eighteenth aspect may be a network device or a chip that can be used for a network device.

In a nineteenth aspect, the embodiment of the present application provides a communication apparatus, including: a memory and a processor.

The memory is used to store program code. The processor, the program code is invoked, when the program code is executed, for performing the communication method according to the first aspect or the second aspect of the present application.

In a twentieth aspect, the embodiment of the present application provides a communication device, including: a memory and a processor.

The memory is used to store program code. The processor, the program code is invoked, when the program code is executed, for performing the communication method according to the third aspect or the fourth aspect of the present application.

It should be noted that the communication device according to the nineteenth aspect or the twentieth aspect may be a terminal or a chip that can be used for the terminal.

In a twenty-first aspect, the embodiment of the present application provides a communication device, including: a memory and a processor.

The memory is used to store program code. The processor, the program code is invoked, when the program code is executed, for performing the communication method according to the fifth aspect or the sixth aspect of the present application.

It should be noted that the communication device of the twenty-first aspect may be a network device or a chip that can be used for a network device.

In a twenty-second aspect, the embodiment of the present application provides a computer readable storage medium, including instructions, when the instruction is run on a communication device, causing the communication device to perform the implementation of the present application as in the first aspect or the second aspect. The communication method described in the example.

In a twenty-third aspect, the embodiment of the present application provides a computer readable storage medium, including instructions, when the instruction is run on a communication device, causing the communication device to perform the implementation of the present application as in the third aspect or the fourth aspect. The communication method described in the example.

In a twenty-fourth aspect, the embodiment of the present application provides a computer readable storage medium, including instructions, when the instruction is run on a communication device, causing the communication device to perform the implementation of the present application as in the fifth aspect or the sixth aspect. The communication method described in the example.

In a twenty-fifth aspect, the embodiment of the present application provides a chip, where the computer program is stored on the chip, and when the computer program is executed by the processor, the method is as described in the first aspect or the second aspect. Communication method.

In a twenty-sixth aspect, the embodiment of the present application provides a chip, where the computer program is stored on the chip, and when the computer program is executed by the processor, the third aspect or the fourth aspect is performed as described in the embodiment of the present application. Communication method.

In a twenty-seventh aspect, the embodiment of the present application provides a chip, where the computer program is stored on the chip, and when the computer program is executed by the processor, the fifth aspect or the sixth aspect is performed as described in the embodiment of the present application. Communication method.

DRAWINGS

Figure 1 is a schematic diagram of a relay mode;

2 is a schematic diagram of a communication system according to an embodiment of the present application;

FIG. 3 is a flowchart of a communication method according to an embodiment of the present application;

4 is a schematic diagram of a relay terminal sending first information to a remote terminal according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a relay terminal sending first information to a remote terminal according to another embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a communication apparatus according to another embodiment of the present disclosure;

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

Detailed ways

2 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG. 2, the communication system includes a network device and at least two terminals, and the network device and the two terminals provide the technical solutions provided by the following embodiments of the present application. Communicate. 2, the first terminal and the second terminal are shown in FIG. 2, and the first terminal and the second terminal may be the same type of terminal, or may be different types of terminals, where FIG. 2 is the first terminal. For the smart phone, the second terminal is a smart wristband. The first terminal may be a relay node that communicates with the network device by the second terminal; the first terminal is in the coverage of the network device, and the second terminal may be in the coverage of the network device, or may be in the network device. Out of coverage.

In the following, some of the terms in this application are explained so as to be understood by those skilled in the art:

A network device, also known as a radio access network (RAN) device, is a device that accesses a terminal to a wireless network, and may be an evolved base station in Long Term Evolution (LTE) (Evolutional Node B, eNB or eNodeB), or a relay station or an access point, or a base station in a 5G network, such as a Transmission and Reception Point (TRP), a controller, is not limited herein.

Terminal: It can be a wireless terminal or a wired terminal. A wireless terminal can refer to a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or on-board. It can also be deployed on the water (such as a ship). Etc); can also be deployed in the air (such as airplanes, balloons, satellites, etc.). The terminal may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, and an industrial control. Wireless terminal, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety, The wireless terminal in the smart city, the wireless terminal in the smart home, and the like are not limited herein.

It should be noted that, in the following method embodiments, the first terminal is a relay terminal, and the second terminal is a remote terminal. The following method embodiments may be applied to sidelink unicast communication, but are not limited thereto. this.

FIG. 3 is a flowchart of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3, the method in this embodiment may include:

S301. The relay terminal determines a power parameter value of the relay terminal.

In this embodiment, the relay terminal determines a power parameter value of the relay terminal, and the power parameter value is a power parameter value P ₀ . In some embodiments, the power parameter value may refer to a desired received power of the relay terminal. Chapter 14 of the 3GPP standard protocol TS36.213 <UE procedures related to sidelink> describes PSSCH (Physical sidelink shared channel), PSCCH (Physical sidelink control channel), PSDCH (Physical) Sidelink discovery channel, physical bypass discovery channel, PSSS (Primary sidelink synchronization signal, bypass primary synchronization signal) and SSSS (Secondary sidelink synchronization signal, bypass secondary synchronization signal) power control methods, respectively, define P _{0_PSSCH} , P _{0_PSCCH} , P _{0_PSDCH} and P _{0_PSSS} (SSSS uses the same parameter P _{0_PSSS as PSSS} ). The physical meaning of the power parameter value P _{0 of the} present application is equivalent to the physical meaning of the above parameter value, except that the P ₀ value defined in the current standard is defined from the perspective of the base station side, and the power parameter value P of the relay terminal in the present application. ₀ is defined from the perspective of the terminal side. It should be noted that the solution of each embodiment of the present application can also be applied to a 5G NR scenario.

The relay terminal may determine the power parameter value of the relay terminal according to characteristics of the relay terminal itself, such as antenna gain, receiver sensitivity, and noise floor. Alternatively, the power parameter value of the relay terminal is determined by the network device, and then the network device indicates the power parameter value of the relay terminal to the relay terminal. Therefore, in this case, the relay terminal determines the location according to the indication of the network device. The power parameter value of the relay terminal.

In some embodiments, the power parameter value P ₀ can be used to represent the power parameter value P ₀ of the relay terminal on different channels or signals in different scenarios, similar to the representation method of TS36.213, represented by different suffixes. For example, for power control and transmit power calculation of PSDCH, power parameter value P ₀ specifically represents P _{0_PSDCH} ; for power control and transmit power calculation of PSCCH, power parameter value P ₀ specifically represents P _{0_PSCCH} ; power control and transmission for PSSCH For power calculation, the power parameter value P ₀ specifically represents P _{0_PSSCH} ; for the power control and transmission power calculation of the PSSS, the power parameter value P ₀ specifically represents P _{0_PSSS} ; for the power control and transmission power calculation of the SSSS, the power parameter value P _{0 is} specifically represented P _{0_SSSS} (P _{0_SSSS} may be equal to P _{0_PSSS} ); for power control of PSBCH and transmission power calculation, power parameter value P ₀ specifically represents P _{0_PSBCH} . The power parameter values of the respective channels are applicable to the method in this embodiment.

In some embodiments, the power parameter value P _{0 of the} network device is used to constrain the maximum transmit power between the relay terminal and the remote terminal. At this time, the power parameter value P _{0 of the} network device is completely related to the TS 36. The P ₀ parameters in .213 have the same physical meaning, and are distinguished by different suffixes for specific different channels or signals. Some embodiments of the present application, in order to avoid power parameter value power parameter value P ₀ and network devices relay terminal P ₀ of confusion, denoted by _P 0_relay relay terminal power parameter value P _0, the network is represented by _P 0_eNB The power parameter value P _{0 of the device} ; for the power control of the specific channel or signal and the calculation of the transmit power, the suffix is still used to indicate the power parameter value P _{0 of} different channels or signals. For example, for the power control and transmit power calculation of the PSCCH, P _{0_relay_PSCCH} can be _used. It represents a relay terminal on the PSCCH power parameter value P _0, represents a network device on the PSCCH power parameter value P _0, and so on other channels or signals may be applied to the sidelink with _P 0_eNB_PSCCH.

S302. The relay terminal sends the first information to the remote terminal.

In this embodiment, after determining the power parameter value of the relay terminal, the relay terminal sends the first information to the remote terminal. The first information is used to indicate at least a power parameter value of the relay terminal, and the power parameter value of the relay terminal includes a desired received power of the relay terminal.

S303. The remote terminal receives the first information.

In some embodiments, the remote terminal receives the first information from the network device. The relaying of the first information to the remote terminal by the relay terminal means that the relay terminal sends the first information to the network device, the network device receives the first information from the relay terminal, and the network device forwards the first information to the remote terminal, that is, the middle information. The terminal sends the first information to the remote terminal through the forwarding of the network device. Therefore, for the remote terminal, the remote terminal receives the first information from the network device. As shown in FIG. 4, FIG. 4 is a schematic diagram of a relay terminal sending first information to a remote terminal according to an embodiment of the present disclosure.

In some embodiments, the remote terminal receives the first information from the relay terminal. The relay terminal sends the first information to the remote terminal, that is, the relay terminal does not need to send the first information to the remote terminal by forwarding the network device, but the relay terminal directly sends the first information to the remote terminal. For the remote terminal, the remote terminal receives the first information from the relay terminal. As shown in FIG. 5, FIG. 5 is a schematic diagram of a relay terminal sending first information to a remote terminal according to another embodiment of the present application.

S304. The remote terminal determines, according to the first information, a transmit power that the remote terminal communicates with the relay terminal.

In this embodiment, after the first terminal receives the first information, the first terminal information indicates the power parameter value of the relay terminal, and the remote terminal may use the power parameter value of the relay terminal indicated by the first information. The transmit power of the remote terminal communicating with the relay terminal is determined by an open loop power control method and/or a closed loop power control method. The transmit power refers to the transmit power of the remote terminal sending signaling and data to the relay terminal, and then the remote terminal may send signaling and/or data to the relay terminal according to the transmit power, because the transmit power is a reference. The power parameter value of the relay terminal (for example, the expected received power) is determined. Therefore, the receiving power of the relay terminal receiving the signaling and/or data from the remote terminal is close to its expected receiving power, and the relay terminal is configured to receive the remote end. The success rate of signaling and/or data sent by the terminal improves the receiving performance of the relay terminal. For example, the transmit power of the Remote UE on the PSSCH can be calculated by the following formula for open loop power control:

P _PSSCH =min{P _CMAX,PSSCH ,10log ₁₀ (M _PSSCH )+P _{0_PSSCH} +α _PSSCH *PL}[dBm]

Where P _{CMAX, PSSCH} represents the maximum transmit power value preset on the _PSSCH ; M _PSSCH represents the bandwidth calculated by the RB number (Resource Block) on the PSSCH occupied by the remote terminal; P _{0_PSSCH} represents the relay on the PSSCH The power parameter P _{0 of the} terminal; α _PSSCH represents an attenuation factor in the range of [0, 1], which is determined by the upper layer; PL represents the path loss between the relay terminal and the remote terminal. The calculation of the transmission power in the open-loop power control mode of the channel or signal of other sidelinks is similar to the above formula and will not be described again. The embodiments of the present application are not limited to a specific power control mode.

In the communication method provided by the embodiment, the power parameter value of the relay terminal is determined by the relay terminal, and then the first information is sent to the remote terminal, and after receiving the first information, the remote terminal indicates, according to the first information, Determining, by the power parameter value of the relay terminal, a transmit power that the remote terminal communicates with the relay terminal, where the transmit power is determined based on a power parameter value of the relay terminal, and therefore, the relay terminal is from the remote terminal. The received power of the received signaling and/or data is close to the expected received power of the relay terminal, thereby improving the success rate of communication between the remote terminal and the relay terminal, and improving the receiving performance of the relay terminal.

In some embodiments, the first information includes a power parameter value (for example, P _{0_Relay} ) of the relay terminal, and correspondingly, after receiving the first information, the remote terminal acquires a power parameter value of the relay terminal from the first information. Where the power parameter value is an absolute value. In different embodiments, the power parameter value may indicate the size of the power parameter value by using different indication manners. For example, the bit information may be used to indicate the size of the power parameter value. In some embodiments, if the remote terminal is within the coverage of the network device, the remote terminal may receive a power parameter value (eg, P _{0_eNB} ) of the network device from the network device; if the remote terminal is outside the coverage of the network device, The terminal terminal may receive a power parameter value of the network device from the relay terminal, and the power parameter value of the network device may be included in the first information.

In some embodiments, after performing S301, the relay terminal further determines a power offset value (eg, P _{0_offset} ) according to the power parameter value (eg, P _{0_Relay} ) of the relay terminal and the power parameter value of the network device. The power parameter value of the network device may be sent by the network device to the relay terminal, that is, the relay terminal receives from the network device. The power offset value is used to indicate a relative value of a power parameter value between the relay terminal and the network device, and the power offset value may be a value obtained by subtracting a power parameter value of the network device from a power parameter value of the relay terminal. It may also be a value obtained by subtracting the power parameter value of the relay terminal from the power parameter value of the network device. In this embodiment, the first information may include second information, where the second information is used to indicate at least the power offset value between the power parameter value of the relay terminal and the power parameter value of the network device, that is, the relay When the terminal performs S302, the terminal carries the second information in the first information and sends the information to the remote terminal.

Correspondingly, after the remote terminal receives the first information, a possible implementation manner of performing S304 is: the remote terminal determines, according to the second information in the first information, and the power parameter value of the network device, the first terminal The power parameter value, for example: P _{0_relay} = P _{0_eNB} + P _{0_offset} ; then determines the transmit power of the remote terminal to communicate with the relay terminal according to the power parameter value of the relay terminal. The power parameter value of the network device may be sent by the network device to the remote terminal, that is, the remote terminal receives the network device, or the power parameter value of the network device may be sent by the relay terminal to the remote terminal. That is, the remote terminal receives from the relay terminal. In some embodiments, an implementation manner of the remote terminal receiving the power parameter value of the network device from the relay terminal is: the power parameter value of the network device is included in the first information, that is, the remote terminal receives the first from the relay terminal. The information and the power parameter value of the network device are obtained from the first information.

In some embodiments, the second information includes a power offset value. After the relay terminal determines the power offset value, the power offset value is carried in the first information and sent to the remote terminal. Correspondingly, after receiving the first information, the remote terminal acquires a power offset value of the relay terminal from the second information of the first information; wherein the power offset value is a relative value. In different embodiments, the power offset value may indicate the magnitude of the power offset value by using different indication manners. For example, the bit information may be used to indicate the magnitude of the power offset value.

In some embodiments, the power offset factor is included in the second information. After determining the power offset value, the relay terminal further determines a power offset factor according to the determined power offset value, and the relay terminal carries the power offset factor in the first information and sends the power offset factor to the remote terminal. Therefore, after the remote terminal receives the first information, the power offset factor is related to the power offset value: the remote terminal determines the power offset according to the power offset factor included in the second information in the first information. Move the value. In this embodiment, the power offset value is indicated by the power offset factor, and the power offset factor may be represented by the second information in the second information, and the size of the second information is reduced.

In some embodiments, a preset power step size (for example, _{P_step} ) is defined in advance, and the determined power offset value is a multiple of the preset power step, for example, may be an integer multiple, P _{0_offse} t=n*P _{_step} , therefore, the relay terminal determines the power offset factor, which may be determined according to the determined power offset value (P _{0_offset} ) and the preset power step size (P _{_step} ), for example, the power is determined. The ratio of the offset value to the preset power step is determined as the power offset factor. Correspondingly, after obtaining the power offset factor from the second information, the remote terminal determines the power offset value according to the power offset factor and the preset power step. The power parameter value of the relay terminal is determined according to the power offset factor, for example, as shown in Table 1.

Table I

B1b0 n P _{0_relay} 00 -1 P _{0_eNB} –P _{_step} 01 0 P _{0_eNB} 10 1 P _{0_eNB} +P _{_step} 11 2 P _{0_eNB} +2*P _{_step}

In some embodiments, the preset power step (eg, _{P_step} ) may be sent by the relay terminal to the remote terminal. An optional way is to predefine a set of power step values, and the relay terminal selects one of the transmissions, which can represent a limited value with fewer bits; another alternative is that Define a set of values, and the relay terminal dynamically selects a power step value to transmit. This method requires more bits to represent the power step value.

In some embodiments, the relay terminal may further send the power parameter value and the power offset value of the network device to the remote terminal, where the power parameter value of the network device is included in the first information, and the power offset value indicates the network device The difference between the power parameter value and the power parameter value of the relay terminal, the power offset value being included in the second information. After receiving the first information and the second information, the second terminal may calculate a power parameter value of the relay terminal, and calculate a transmit power when the remote terminal communicates with the relay terminal according to the data.

In some embodiments, the relay terminal broadcasts a message (eg, a Master Information Block-Sidelink (MIB-SL)), or a Radio Resource Control (RRC) message or media access control. A (Media Access Control, MAC) message (transmitted on the PSSCH), or a side control information (SCI) message (transmitted on the PSCCH) transmits the first information described above to the remote terminal. Accordingly, the remote terminal receives broadcast information (MIB-SL) from the relay terminal, or an RRC message or a MAC message (transmitted on the PSSCH), or an SCI message (transmitted on the PSCCH); and then from the broadcast information (MIB- At least one of the following is obtained in the SL), the RRC message, the MAC message, or the SCI message: a power parameter value of the relay terminal, a power offset value, a power offset factor, and a power parameter value of the network device. In some embodiments, the remote terminal also obtains a power parameter value of the network device from broadcast information (MIB-SL), or an RRC message or a MAC message, or an SCI message.

In some embodiments, if the first information is sent by the relay terminal to the remote terminal through the forwarding of the network device, the network device receives the first information sent by the relay terminal, and then passes the system information block (SIB). The message or the RRC message sends the first information to the remote terminal. Correspondingly, the remote terminal receives the SIB message or the RRC message from the network device, and then obtains at least one of the following from the SIB message or the RRC message: power parameter value, power offset value, power offset factor, network device of the relay terminal Power parameter value.

It can be understood that, in the above various embodiments, the method or the step implemented by the terminal may also be implemented by a chip usable for the terminal. The method or step implemented by the network device can also be implemented by a chip that can be used for the network device.

FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure. The communication device may be a terminal, or may be a chip that can be used for a terminal, and the terminal may be used as a first terminal, as shown in FIG. The communication device may include: a processing module 601 and a sending module 602.

The processing module 601 is configured to determine a power parameter value of the first terminal, where the power parameter value of the first terminal includes a desired received power of the first terminal.

The sending module 602 is configured to send first information to the second terminal, where the first information is used to indicate at least a power parameter value of the first terminal.

In some embodiments, the first information includes: a power parameter value of the first terminal.

In some embodiments, the processing module 601 is further configured to: according to the power parameter value of the first terminal and the network device received from the network device, before the sending module sends the first information to the second terminal The power parameter value determines the power offset value.

The first information includes: second information; the second information is used to indicate at least the power offset value between a power parameter value of the first terminal and a power parameter value of the network device.

In some embodiments, the second information includes the power offset value. Or the second information includes a power offset factor, and the processing module 601 is further configured to: determine the power offset factor according to the power offset value.

In some embodiments, the processing module 601 is specifically configured to: determine the power offset factor according to the power offset value and a preset power step.

In some embodiments, the first information further includes: a power parameter value of the network device.

The communication device described above in this embodiment may be used to perform the technical solution executed by the relay terminal/relay terminal chip in the foregoing respective method embodiments, and the implementation principle and the technical effect are similar, wherein the functions of each module may refer to the method. Corresponding descriptions in the embodiments are not described herein again.

In some embodiments, in hardware implementation, the processing module 601 and the transmitting module 602 described above may be embedded in the processor in hardware. Alternatively, in hardware implementation, the foregoing processing module 601 may be a processor, and the foregoing sending module 602 may be a transmitter.

Correspondingly, the communication device of this embodiment may further include a memory for storing program instructions, which are used to execute the above scheme when called.

The program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solutions of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically a processor, to perform relaying in various embodiments of the present application. All or part of the steps of the terminal. The foregoing computer readable storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.

FIG. 7 is a schematic structural diagram of a communication device according to another embodiment of the present disclosure. The communication device may be a terminal, or may be a chip that can be used for a terminal, and the terminal can be used as a second terminal, as shown in FIG. The communication device may include: a receiving module 701 and a processing module 702.

The receiving module 701 is configured to receive first information, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal.

The processing module 702 is configured to determine, according to the first information, a transmit power that the second terminal communicates with the first terminal.

In some embodiments, the first information includes: a power parameter value of the first terminal.

In some embodiments, the first information includes: second information; the second information is used to indicate at least a power offset value between a power parameter value of the first terminal and a power parameter value of the network device. The processing module 702 is specifically configured to: determine, according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal, a power parameter value of a terminal; and determining, according to the power parameter value of the first terminal, a transmit power of the second terminal to communicate with the first terminal.

In some embodiments, the second information includes the power offset value.

In some embodiments, the second information comprises a power offset factor; wherein the power offset factor is related to the power offset value. The processing module 702 is specifically configured to: determine the power offset value according to the power offset factor; and determine, according to the power offset value and a power parameter value of the network device, the first terminal Power parameter value.

In some embodiments, the processing module 702 is specifically configured to determine the power offset value according to the power offset factor and a preset power step.

In some embodiments, the first information further includes: a power parameter value of the network device.

In some embodiments, the receiving module 701 is specifically configured to: receive the first information from the first terminal; or receive the first information from a network device, where the first information is the first A terminal reports to the network device.

The communication device described above in this embodiment may be used to perform the technical solution of the remote terminal/remote terminal chip in the foregoing corresponding method embodiments, and the implementation principle and the technical effect are similar, wherein the functions of each module may refer to the method. Corresponding descriptions in the embodiments are not described herein again.

In some embodiments, in hardware implementation, the receiving module 701 and the processing module 702 described above may be embedded in the processor in hardware. Alternatively, in the hardware implementation, the foregoing receiving module 701 may be a receiver, and the foregoing processing module 702 may be a processor.

Correspondingly, the communication device of this embodiment may further include a memory for storing program instructions, which are used to execute the above scheme when called.

The program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solution of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, particularly a processor, to perform remote operations in various embodiments of the present application. All or part of the steps of the terminal. The foregoing computer readable storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.

FIG. 8 is a schematic structural diagram of a communication device according to another embodiment of the present disclosure. The communication device may be a network device or a chip that can be used for a network device. As shown in FIG. 8 , the network device in this embodiment may include : a receiving module 801 and a transmitting module 802.

The receiving module 801 is configured to receive first information, where the first information is used to indicate a power parameter value of the first terminal, where the power parameter value of the first terminal includes the first terminal Expected reception power.

The sending module 802 is configured to send the first information to the second terminal.

In some embodiments, the first information includes: a power parameter value of the first terminal.

In some embodiments, the first information includes: second information; the second information is used to indicate at least a power offset value between a power parameter value of the first terminal and a power parameter value of the network device.

In some embodiments, the second information includes the power offset value, or the second information includes a power offset factor, the power offset factor being related to the power offset value.

In some embodiments, the first information further includes: a power parameter value of the network device.

In some embodiments, the sending module 802 is further configured to send a power parameter value of the network device to the second terminal.

The communication device described above in this embodiment may be used to perform the technical solution executed by the network device/network device chip in the foregoing respective method embodiments, and the implementation principle and the technical effect are similar. The function of each module may refer to the method embodiment. The corresponding description in the description will not be repeated here.

In some embodiments, in hardware implementation, the receiving module 801 and the transmitting module 802 described above may be embedded in the processor in hardware. Alternatively, in hardware implementation, the receiving module 801 may be a receiver, and the sending module 802 may be a transmitter, where the receiver and the transmitter may be integrated into a transceiver.

Correspondingly, the communication device of this embodiment may further include a memory for storing program instructions, which are used to execute the above scheme when called.

The program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solution of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically a processor, to perform network devices in various embodiments of the present application. All or part of the steps. The foregoing computer readable storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.

It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner. The functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

The integrated modules, if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it 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. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

Claims (69)

A communication method, comprising: Determining, by the first terminal, a power parameter value of the first terminal, where the power parameter value of the first terminal includes a desired received power of the first terminal; The first terminal sends the first information to the second terminal, where the first information is used to indicate at least the power parameter value of the first terminal. The method according to claim 1, wherein the first information comprises: a power parameter value of the first terminal. The method according to claim 1, wherein before the first terminal sends the first information to the second terminal, the method further includes: Determining, by the first terminal, a power offset value according to a power parameter value of the first terminal and a power parameter value of the network device received from the network device; The first information includes: second information; the second information is used to indicate at least the power offset value between a power parameter value of the first terminal and a power parameter value of the network device. The method according to claim 3, wherein said second information comprises said power offset value; or The second information includes a power offset factor, and the method further includes: the first terminal determining the power offset factor according to the power offset value. The method according to claim 4, wherein the determining, by the first terminal, the power offset factor according to the power offset value comprises: The first terminal determines the power offset factor according to the power offset value and a preset power step size. The method according to any one of claims 3-5, wherein the first information further comprises: a power parameter value of the network device. A communication method, comprising: The second terminal receives the first information, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal; The second terminal determines, according to the first information, a transmit power that the second terminal communicates with the first terminal. The method according to claim 7, wherein the first information comprises: a power parameter value of the first terminal. The method according to claim 7, wherein the first information comprises: second information; the second information is used to at least indicate a power parameter value of the first terminal and a power parameter value of the network device. Power offset value Determining, by the second terminal, the transmit power of the second terminal to communicate with the first terminal according to the first information, including: Determining, by the second terminal, the power of the first terminal according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal Parameter value The second terminal determines, according to the power parameter value of the first terminal, a transmit power that the second terminal communicates with the first terminal. The method of claim 9 wherein said second information comprises said power offset value. The method of claim 9, wherein the second information comprises a power offset factor; wherein the power offset factor is related to the power offset value; Determining, by the second terminal, the power of the first terminal according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal Parameter values, including: Determining, by the second terminal, the power offset value according to the power offset factor; Determining a power parameter value of the first terminal according to the power offset value and a power parameter value of the network device. The method according to claim 11, wherein the determining, by the second terminal, the power offset value according to the power offset factor comprises: The second terminal determines the power offset value according to the power offset factor and a preset power step size. The method according to any one of claims 9 to 12, wherein the first information further comprises: a power parameter value of the network device. The method according to any one of claims 7 to 13, wherein the receiving, by the second terminal, the first information comprises: Receiving, by the second terminal, the first information from the first terminal; or The second terminal receives the first information from a network device, where the first information is reported by the first terminal to the network device. A communication method, characterized in that The network device receives the first information from the first terminal, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal; The network device sends the first information to a second terminal. The method according to claim 15, wherein the first information comprises: a power parameter value of the first terminal. The method according to claim 15, wherein the first information comprises: second information; the second information is used to at least indicate a power parameter value of the first terminal and a power parameter of the network device The power offset value between values. The method according to claim 17, wherein the second information comprises the power offset value, or the second information comprises a power offset factor, the power offset factor and the power offset The value of the shift is related. The method according to claim 17 or 18, wherein the first information further comprises: a power parameter value of the network device. The method according to claim 17 or 18, further comprising: The network device sends a power parameter value of the network device to the second terminal. A communication device, comprising: a processing module, configured to determine a power parameter value of the first terminal, where the power parameter value of the first terminal includes a desired received power of the first terminal; And a sending module, configured to send, to the second terminal, first information, where the first information is used to indicate at least a power parameter value of the first terminal. The apparatus according to claim 21, wherein said first information comprises: a power parameter value of said first terminal. The device according to claim 21, wherein the processing module is further configured to: according to the power parameter value of the first terminal and the slave network device, before the sending module sends the first information to the second terminal Receiving a power parameter value of the network device, and determining a power offset value; The first information includes: second information; the second information is used to indicate at least the power offset value between a power parameter value of the first terminal and a power parameter value of the network device. The apparatus according to claim 23, wherein said second information comprises said power offset value; or The second information includes a power offset factor, and the processing module is further configured to: determine the power offset factor according to the power offset value. The device according to claim 24, wherein the processing module is configured to: determine the power offset factor according to the power offset value and a preset power step size. The device according to any one of claims 23-25, wherein the first information further comprises: a power parameter value of the network device. A communication device, comprising: a receiving module, configured to receive first information, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal; And a processing module, configured to determine, according to the first information, a transmit power that the second terminal communicates with the first terminal. The apparatus according to claim 27, wherein said first information comprises: a power parameter value of said first terminal. The device according to claim 27, wherein the first information comprises: second information; the second information is used to at least indicate a power parameter value of the first terminal and a power parameter value of a network device. Power offset value The processing module is specifically configured to: Determining, according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal, a power parameter value of the first terminal; And determining, according to the power parameter value of the first terminal, a transmit power of the second terminal to communicate with the first terminal. The apparatus of claim 29 wherein said second information comprises said power offset value. The apparatus according to claim 29, wherein said second information comprises a power offset factor; wherein said power offset factor is related to said power offset value; The processing module is specifically configured to: Determining the power offset value according to the power offset factor; Determining a power parameter value of the first terminal according to the power offset value and a power parameter value of the network device. The device according to claim 31, wherein the processing module is specifically configured to: The power offset value is determined according to the power offset factor and a preset power step. The device according to any one of claims 29-31, wherein the first information further comprises: a power parameter value of the network device. The device according to any one of claims 27 to 33, wherein the receiving module is specifically configured to: Receiving the first information from the first terminal; or Receiving the first information from a network device, where the first information is reported by the first terminal to the network device. A communication device, comprising: a receiving module, configured to receive first information, where the first information is used to indicate a power parameter value of the first terminal, where the power parameter value of the first terminal includes a requirement of the first terminal Receiving power And a sending module, configured to send the first information to the second terminal. The apparatus according to claim 35, wherein said first information comprises: a power parameter value of said first terminal. The device according to claim 36, wherein the first information comprises: second information; the second information is used to at least indicate a power parameter value of the first terminal and a power parameter value of a network device. The power offset value between. The apparatus according to claim 37, wherein said second information comprises said power offset value, or said second information comprises a power offset factor, said power offset factor and said power offset The value of the shift is related. The apparatus according to claim 37 or 38, wherein the first information further comprises: a power parameter value of the network device. The device according to claim 37 or 38, wherein the sending module is further configured to send a power parameter value of the network device to the second terminal. A communication device, comprising: a processor, configured to determine a power parameter value of the first terminal, where the power parameter value of the first terminal includes a desired received power of the first terminal; And a transmitter, configured to send first information to the second terminal, where the first information is used to indicate at least a power parameter value of the first terminal. The apparatus according to claim 41, wherein said first information comprises: a power parameter value of said first terminal. The device according to claim 41, wherein the processor is further configured to: according to the power parameter value of the first terminal and the slave network device, before the transmitter sends the first information to the second terminal Receiving a power parameter value of the network device, and determining a power offset value; The first information includes: second information; the second information is used to indicate at least the power offset value between a power parameter value of the first terminal and a power parameter value of the network device. The apparatus according to claim 43, wherein said second information comprises said power offset value; or The second information includes a power offset factor, and the processor is further configured to: determine the power offset factor according to the power offset value. The device according to claim 44, wherein the processor is configured to: determine the power offset factor according to the power offset value and a preset power step size. The apparatus according to any one of claims 43 to 45, wherein the first information further comprises: a power parameter value of the network device. A communication device, comprising: a receiver, configured to receive first information, where the first information is used to indicate a power parameter value of the first terminal, and the power parameter value of the first terminal includes a desired received power of the first terminal; And a processor, configured to determine, according to the first information, a transmit power that the second terminal communicates with the first terminal. The apparatus according to claim 47, wherein said first information comprises: a power parameter value of said first terminal. The device according to claim 47, wherein the first information comprises: second information; the second information is used to at least indicate a power parameter value of the first terminal and a power parameter value of the network device. Power offset value The processor is specifically configured to: Determining, according to the second information in the first information, and a power parameter value of the network device received from the network device or received from the first terminal, a power parameter value of the first terminal; And determining, according to the power parameter value of the first terminal, a transmit power of the second terminal to communicate with the first terminal. The apparatus of claim 49 wherein said second information comprises said power offset value. The apparatus according to claim 49, wherein said second information comprises a power offset factor; wherein said power offset factor is related to said power offset value; The processor is specifically configured to: Determining the power offset value according to the power offset factor; Determining a power parameter value of the first terminal according to the power offset value and a power parameter value of the network device. The device according to claim 51, wherein the processor is specifically configured to: The power offset value is determined according to the power offset factor and a preset power step. The apparatus according to any one of claims 49-52, wherein the first information further comprises: a power parameter value of the network device. The device according to any one of claims 47-53, wherein the receiver is specifically configured to: Receiving the first information from the first terminal; or Receiving the first information from a network device, where the first information is reported by the first terminal to the network device. A communication device, comprising: a receiver, configured to receive first information, where the first information is used to indicate a power parameter value of the first terminal, where the power parameter value of the first terminal includes a requirement of the first terminal Receiving power And a transmitter, configured to send the first information to the second terminal. The apparatus according to claim 55, wherein said first information comprises: a power parameter value of said first terminal. The device according to claim 55, wherein the first information comprises: second information; the second information is used to at least indicate a power parameter value of the first terminal and a power parameter value of the network device. The power offset value between. The apparatus according to claim 57, wherein said second information comprises said power offset value, or said second information comprises a power offset factor, said power offset factor and said power offset The value of the shift is related. The apparatus according to claim 57 or 58, wherein the first information further comprises: a power parameter value of the network device. The device according to claim 57 or 58, wherein the transmitter is further configured to send a power parameter value of the network device to the second terminal. A communication device, comprising: a memory for storing program code; The processor, the program code is invoked, when the program code is executed, for performing the communication method according to any one of claims 1-6. A communication device, comprising: a memory for storing program code; The processor, the program code is invoked, when the program code is executed, for performing the communication method according to any one of claims 7-14. A communication device, comprising: a memory for storing program code; The processor, the program code is invoked, when the program code is executed, for performing the communication method according to any one of claims 15-20. A computer readable storage medium comprising instructions, wherein the communication device, when executed on a communication device, causes the communication device to perform the communication method of any of claims 1-6. A computer readable storage medium comprising instructions, wherein the communication device, when executed on a communication device, causes the communication device to perform the communication method of any of claims 7-14. A computer readable storage medium comprising instructions, wherein the communication device, when executed on a communication device, causes the communication device to perform the communication method of any of claims 15-20. A chip characterized in that a computer program is stored on the chip, and when the computer program is executed by a processor, the communication method according to any one of claims 1-6 is performed. A chip characterized in that a computer program is stored on the chip, and when the computer program is executed by a processor, the communication method according to any one of claims 7-14 is executed. A chip characterized in that a computer program is stored on the chip, and when the computer program is executed by the processor, the communication method according to any one of claims 15-20 is executed.

Images