CN104619000A

CN104619000A - Uplink power control method, uplink power control system and related equipment

Info

Publication number: CN104619000A
Application number: CN201310538388.6A
Authority: CN
Inventors: 郝鹏; 李卫敏; 张文峰; 戴博; 鲁照华
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-11-01
Filing date: 2013-11-01
Publication date: 2015-05-13
Anticipated expiration: 2033-11-01
Also published as: CN104619000B; WO2014180445A1

Abstract

The invention discloses an uplink power control method. The method comprises the steps that a terminal receives a transmission power control command and instruction information; and the power adjustment amount of at least one uplink subframe is determined according to the transmission power control command and the instruction information. The invention also discloses an uplink power control system and related equipment.

Description

Uplink power control method, system and related equipment

Technical Field

The present invention relates to communication technologies, and in particular, to a method, a system, and a related device for controlling uplink power. Background

Fig. 1 is a schematic diagram of a frame structure of a Time Division Duplex (TDD) mode of a Long Term Evolution (LTE) system in the prior art, which is also called a frame structure type 2. In the frame structure, a 10ms radio frame is divided into two fields, each of which is 5ms in length and contains 5 subframes of 1ms in length. Table 1 is an Uplink and Downlink configuration schematic table, and the function of each subframe is as shown in table 1, where D denotes that the subframe is used for Downlink transmission, U denotes that the subframe is used for Uplink transmission, and S denotes a special subframe and includes three special Time slots, i.e., a Downlink Pilot Time Slot (DwPTS, Downlink Pilot Time Slot), a Guard interval (GP, Guard Period), and an Uplink Pilot Time Slot (UpPTS, Uplink Pilot Time Slot).

TABLE 1

As can be seen from table 1, when different cells use different uplink and downlink configurations, uplink transmission performed by a terminal in some uplink subframes may only be subject to uplink interference generated by uplink transmission of terminals in other cells, and uplink transmission performed in other uplink subframes may be subject to downlink interference generated by downlink transmission of base stations in other cells.

Uplink power control mechanisms of existing LTE systems include open-loop power control and closed-loop power control, where the closed-loop power control includes accumulated power adjustment and absolute power adjustment. In order to overcome the influence of downlink interference, the base station can divide the uplink subframe into two subframe groups, and the power adjustment process is respectively carried out on the two subframe groups, so that the uplink transmitting power of the terminal on the uplink subframe belonging to different subframe groups can be effectively adjusted, and the uplink transmission performance of the terminal, especially the uplink transmission performance on the uplink subframe subjected to downlink interference, can be improved.

When the base station adopts the uplink and Downlink configuration mode 0 in table 1, the Transmission Power Control (TPC) command (TPC command) sent by the base station through the Downlink Control Information (DCI) Format0/3/3a/4 (i.e., DCI Format0/3/3 a/4) is applied to two uplink subframes, and the two uplink subframes belong to different subframe groups, so that the Power adjustment amount of the terminal on the two subframes is the same, which is not consistent with the technical idea of performing Power adjustment on the two subframe groups, respectively. Among them, for DCI format3/3A, there is no effective solution to solve this problem at present.

Disclosure of Invention

In view of this, embodiments of the present invention provide an uplink power control method, system and related device, which can effectively solve the problem that when a base station uses an uplink and downlink configuration mode 0, a TPC command is applied to two subframes belonging to different subframe groups, so that different power adjustment amounts cannot be applied to the two subframes, and meanwhile, power control signaling overhead can be saved.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the embodiment of the invention provides an uplink power control method, which comprises the following steps:

the terminal receives the transmission power control command and the indication information;

and determining the power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information.

In the foregoing solution, the determining a power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information includes:

and the terminal acquires an uplink subframe applied by the transmission power control command according to the indication information and determines the power adjustment quantity on the uplink subframe as the power adjustment quantity corresponding to the transmission power control command.

In the above scheme, the indication information is implicit indication information; the implicit indication information includes: the position of a subframe where downlink control information containing a transmission power control command is located, odd-even characteristics of an index of a radio frame where the downlink control information containing the transmission power control command is located, and uplink subframe group information;

the uplink subframe group at least comprises an uplink subframe group I and an uplink subframe group II; the uplink subframe group information is obtained from a physical layer signaling or a radio resource control signaling by a terminal, and comprises the following steps: grouping information of uplink subframes in at least one radio frame; or, uplink subframe group information to which the uplink subframe belongs.

In the above scheme, the obtaining, by the terminal according to the indication information, the uplink subframe to which the transmission power control command applies includes:

the terminal acquires the subframe position of the downlink control information containing the transmission power control command, and acquires the uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

the indication rule comprises: and the position of the subframe in which the downlink control information containing the transmission power control command is located indicates an uplink subframe which is separated from the subframe in which the downlink control information containing the transmission power control command is located by a preset subframe interval.

the terminal receives the uplink subframe group information, acquires the subframe position of the downlink control information containing the transmission power control command, and acquires the uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

the indication rule comprises: and the subframe position of the downlink control information containing the transmission power control command indicates an uplink subframe belonging to a preset uplink subframe group.

the terminal acquires odd and even characteristics of an index of a wireless frame where downlink control information containing the transmission power control command is located, and acquires an uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

the indication rule comprises: the odd-even characteristic of the index of the radio frame where the downlink control information containing the transmission power control command is located indicates an uplink subframe which is separated from a subframe where the downlink control information containing the transmission power control command is located by a preset subframe interval.

the terminal receives the uplink subframe group information, acquires odd and even characteristics of an index of a wireless frame where downlink control information containing the transmission power control command is located, and acquires the uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

the indication rule comprises: and the odd-even characteristic of the index of the wireless frame where the downlink control information containing the transmission power control command is located indicates the uplink subframe belonging to a preset uplink subframe group.

and the terminal receives the uplink subframe group information and acquires the uplink subframe belonging to a preset uplink subframe group as the uplink subframe applied by the transmission power control command.

In the foregoing solution, the indication information is an explicit indication signaling, and the display indication signaling includes: reusing the transmission power control command field; the reuse transmission power control command field includes at least one transmission power control command.

the terminal receives at least one transmission power control command, acquires an uplink subframe applied by the transmission power control command according to the at least one transmission power control command, and determines the power adjustment quantity on the uplink subframe as the power adjustment quantity corresponding to the transmission power control command.

the terminal receives at least one transmission power control command, obtains an offset value of a power adjustment amount corresponding to the transmission power control command according to the at least one transmission power control command, and determines the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the offset value of the power adjustment amount.

the terminal receives at least one transmission power control command, obtains a power adjustment amount according to the at least one transmission power control command, and determines the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the obtained power adjustment amount.

In the above scheme, the receiving, by the terminal, at least one transmission power control command includes:

the terminal receives a radio resource control signaling comprising at least one transmission power control command index, and receives the at least one transmission power control command according to the at least one transmission power control command index.

In the above scheme, the method includes:

when the uplink subframe corresponding to the transmission power control command and the uplink subframe corresponding to the indication information are the same subframe, the terminal determines that the power adjustment amount on the uplink subframe is the sum of the power adjustment amount corresponding to the transmission power control command and the power adjustment amount obtained according to the indication information;

or, the terminal determines, according to a preset rule, that the power adjustment amount on the uplink subframe is the power adjustment amount corresponding to the transmission power control command or the power adjustment amount obtained according to the indication information.

The embodiment of the invention also provides an uplink power control method, which comprises the following steps:

the base station sends a transmission power control command and indication information; wherein,

the indication information includes: implicit indication information and explicit indication signaling;

the implicit indication information includes: the position of a subframe where downlink control information containing a transmission power control command is located, odd-even characteristics of an index of a radio frame where the downlink control information containing the transmission power control command is located, and uplink subframe group information;

the display indication signaling comprises: reusing the transmission power control command field; the reuse transmission power control command field includes at least one transmission power control command.

An embodiment of the present invention further provides a terminal, where the terminal includes: a receiving module and a determining module; wherein,

the receiving module is used for receiving a transmission power control command and indication information;

and the determining module is used for determining the power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information.

In the above solution, the terminal further includes an obtaining module, configured to obtain, according to the indication information, an uplink subframe to which the transmission power control command applies;

the determining module is configured to determine that the power adjustment amount on the uplink subframe acquired by the acquiring module is the power adjustment amount corresponding to the transmission power control command.

In the above scheme, the indication information is implicit indication information; the implicit indication information includes: the position of a subframe where downlink control information containing a transmission power control command is located, odd-even characteristics of an index of a radio frame where the downlink control information containing the transmission power control command is located, and uplink subframe group information.

In the above scheme, the obtaining module is configured to obtain a subframe position where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

In the above scheme, the receiving module is further configured to receive uplink subframe group information;

the obtaining module is further configured to obtain a subframe position where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

In the above scheme, the obtaining module is further configured to obtain odd and even characteristics of an index of a radio frame where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

the acquisition module is used for acquiring odd and even characteristics of an index of a radio frame where downlink control information containing the transmission power control command is located, and acquiring an uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

the obtaining module is further configured to obtain an uplink subframe belonging to a preset uplink subframe group as the uplink subframe to which the transmission power control command applies.

In the foregoing solution, the receiving module is configured to receive at least one transmission power control command;

the obtaining module is configured to obtain, according to the at least one transmission power control command received by the receiving module, an uplink subframe to which the transmission power control command applies;

the obtaining module is configured to obtain, according to the at least one transmission power control command received by the receiving module, an offset value of a power adjustment amount corresponding to the transmission power control command;

the determining module is configured to determine the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the offset value of the power adjustment amount.

the obtaining module is configured to obtain a power adjustment according to the at least one transmission power control command received by the receiving module;

and the determining module is used for determining the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the acquired power adjustment amount.

In the foregoing scheme, the receiving module is configured to receive a radio resource control signaling including at least one transmission power control command index, and receive the at least one transmission power control command according to the at least one transmission power control command index.

In the foregoing solution, the determining module is configured to determine, when an uplink subframe corresponding to the transmission power control command and an uplink subframe corresponding to the indication information are the same subframe, that a power adjustment amount on the uplink subframe is a sum of the power adjustment amount corresponding to the transmission power control command and a power adjustment amount obtained according to the indication information; or, according to a preset rule, determining the power adjustment amount on the uplink subframe as the power adjustment amount corresponding to the transmission power control command or the power adjustment amount obtained according to the indication information.

The embodiment of the invention also provides a base station, which comprises a sending module, a receiving module and a sending module, wherein the sending module is used for sending the transmission power control command and the indication information; wherein,

The embodiment of the invention also provides an uplink power control system, which comprises the terminal and the base station.

According to the uplink power control method, the system and the related equipment provided by the embodiment of the invention, the terminal receives a transmission power control command and indication information sent by the base station; and determining the power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information, thereby effectively solving the problem that different power adjustment amounts cannot be adopted for two subframes belonging to different subframe groups when the TPC command is applied to the two subframes when the base station adopts an uplink and downlink configuration mode 0, and simultaneously saving the power control signaling overhead.

Drawings

FIG. 1 is a diagram of a prior art TDD mode frame structure of a LTE system;

fig. 2 is a flowchart illustrating an uplink power control method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an uplink subframe to which a TPC command is applied in accordance with a first embodiment of the present invention;

fig. 4 is a schematic diagram of an uplink subframe to which a TPC command is applied in the second embodiment of the present invention;

fig. 5 is a schematic diagram of an uplink subframe to which a TPC command is applied in a third embodiment of the present invention;

fig. 6 is a schematic diagram of an uplink subframe to which a TPC command is applied in a fourth embodiment of the present invention;

FIG. 7 is a functional diagram of a TPC command in accordance with a fifth embodiment of the present invention;

FIG. 8 is a functional diagram of a TPC command in accordance with a sixth embodiment of the present invention;

FIG. 9 is a functional diagram of a TPC command in the seventh embodiment of the present invention;

FIG. 10 is a functional diagram of the TPC command in the eighth embodiment of the present invention;

FIG. 11 is a functional diagram of TPC commands according to the ninth embodiment of the present invention;

fig. 12 is a schematic diagram of an uplink subframe to which a TPC command of scenario one in the tenth embodiment of the present invention is applied;

fig. 13 is a schematic diagram of an uplink subframe to which a TPC command of scene two in the tenth embodiment of the present invention is applied;

fig. 14 is a schematic diagram of an uplink subframe to which a TPC command of scene three is applied in a tenth embodiment of the present invention;

fig. 15 is a schematic structural diagram of an uplink power control system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 2 is a flowchart illustrating an uplink power control method according to an embodiment of the present invention, as shown in fig. 2, including the following steps:

step 201: the terminal receives the transmission power control command and the indication information.

Step 202: and determining the power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information.

In step 201, the indication information received by the terminal may be implicit indication information; the implicit indication information includes: the position of a subframe where downlink control information containing a transmission power control command is located, odd-even characteristics of an index of a radio frame where the downlink control information containing the transmission power control command is located, and uplink subframe group information; the indication information may also be an explicit indication signaling, and the display indication signaling includes: reusing the transmission power control command field; the reuse transmission power control command field includes at least one transmission power control command;

Based on the specific content of the indication information, in step 202, the terminal determines a power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information, which specifically includes:

the indication rule comprises: the subframe position of the downlink control information containing the transmission power control command indicates an uplink subframe which is separated from the subframe of the downlink control information containing the transmission power control command by a preset subframe interval;

specifically, when the transmission power control command is applied to two uplink subframes, and a subframe in which downlink control information including the transmission power control command is located in a first half frame of a radio frame, the terminal acquires a previous subframe of the two uplink subframes as the uplink subframe to which the transmission power control command is applied according to a preset indication rule, and determines that a power adjustment amount on the uplink subframe is a power adjustment amount corresponding to the transmission power control command;

when the subframe containing the downlink control information of the transmission power control command is located in the second half frame of a wireless frame, the terminal acquires the last subframe of the two uplink subframes as the uplink subframe applied by the transmission power control command according to a preset indication rule, and determines the power adjustment amount on the uplink subframe as the power adjustment amount corresponding to the transmission power control command.

Or, the terminal receives the uplink subframe group information, acquires the subframe position of the downlink control information containing the transmission power control command, and acquires the uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

the indication rule comprises: the subframe position of the downlink control information containing the transmission power control command indicates an uplink subframe belonging to a preset uplink subframe group;

specifically, the terminal receives uplink subframe group information; when the transmission power control command is applied to two uplink subframes, the two subframes belong to two different uplink subframe groups respectively, and a subframe containing downlink control information of the transmission power control command is located in a first half frame of a wireless frame, a terminal acquires an uplink subframe belonging to an uplink subframe group I in the two subframes as the uplink subframe to which the transmission power control command is applied according to a preset indication rule, and determines that the power adjustment amount on the uplink subframe is the power adjustment amount corresponding to the transmission power control command;

when the subframe in which the downlink control information containing the transmission power control command is located in the second half frame of a wireless frame, the terminal acquires an uplink subframe belonging to an uplink subframe group two in the two subframes as an uplink subframe applied by the transmission power control command according to a preset indication rule, and determines the power adjustment amount on the uplink subframe as the power adjustment amount corresponding to the transmission power control command.

Or, the terminal acquires odd and even characteristics of an index of a radio frame where downlink control information containing the transmission power control command is located, and acquires an uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

the indication rule comprises: the odd-even characteristic of the index of the wireless frame where the downlink control information containing the transmission power control command is located indicates an uplink subframe which is separated from a subframe where the downlink control information containing the transmission power control command is located by a preset subframe interval;

specifically, when the transmission power control command is applied to two uplink subframes and an index of a radio frame where downlink control information containing the transmission power control command is located is an even number, the terminal obtains a previous subframe of the two uplink subframes as the uplink subframe to which the transmission power control command is applied according to a preset indication rule, and determines that a power adjustment amount on the uplink subframe is a power adjustment amount corresponding to the transmission power control command;

when the index of a radio frame where downlink control information containing the transmission power control command is located is an odd number, the terminal acquires the next subframe of the two uplink subframes as the uplink subframe applied by the transmission power control command according to a preset indication rule, and determines the power adjustment amount on the uplink subframe as the power adjustment amount corresponding to the transmission power control command;

or, the terminal receives the uplink subframe group information, acquires odd and even characteristics of an index of a radio frame where downlink control information containing the transmission power control command is located, and acquires the uplink subframe applied by the transmission power control command according to a pre-configured indication rule;

Specifically, the terminal receives uplink subframe group information; when the index of a radio frame where downlink control information containing the transmission power control command is located is an even number, and the two subframes belong to two different uplink subframe groups respectively, the terminal acquires an uplink subframe belonging to an uplink subframe group I in the two subframes as an uplink subframe to which the transmission power control command applies according to a preset indication rule, and determines that the power adjustment amount on the uplink subframe is the power adjustment amount corresponding to the transmission power control command;

and when the index of the wireless frame where the downlink control information containing the transmission power control command is located is an odd number, the terminal acquires an uplink subframe belonging to an uplink subframe group two in the two subframes as the uplink subframe applied by the transmission power control command according to a preset indication rule.

Or, the terminal receives the uplink subframe group information, and acquires the uplink subframe belonging to the preset uplink subframe group as the uplink subframe to which the transmission power control command applies.

Specifically, the terminal receives the uplink subframe group information, acquires an uplink subframe belonging to a preset uplink subframe group as an uplink subframe to which the transmission power control command applies, and determines that the power adjustment amount on the uplink subframe is the power adjustment amount corresponding to the transmission power control command.

Or the terminal acquires an uplink subframe applied by the transmission power control command according to the received at least one transmission power control command, and determines the power adjustment quantity on the uplink subframe as the power adjustment quantity corresponding to the transmission power control command;

or the terminal acquires the offset value of the power adjustment amount corresponding to the transmission power control command according to the received at least one transmission power control command, and determines the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the offset value of the power adjustment amount;

or, the terminal obtains the power adjustment amount according to the received at least one transmission power control command, and determines the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the obtained power adjustment amount.

In this embodiment, the receiving, by the terminal, at least one transmission power control command specifically includes:

the terminal receives a wireless resource control signaling comprising at least one transmission power control command index, and receives the at least one transmission power control command according to the at least one transmission power control command index.

When an uplink subframe corresponding to the transmission power control command and an uplink subframe corresponding to the indication information are the same subframe, the terminal determines that the power adjustment amount on the uplink subframe is the sum of the power adjustment amount corresponding to the transmission power control command and the power adjustment amount obtained according to the indication information;

or, the terminal determines the power adjustment amount on the uplink subframe as the power adjustment amount corresponding to the transmission power control command or the power adjustment amount obtained according to the indication information according to a preset rule.

It should be noted that the uplink subframe to which the transmission power control command obtained by the terminal according to the indication information is applied may be different from the method described in the embodiment of the present invention according to a rule preset by the system;

in the method for determining the power adjustment amount on at least one uplink subframe by the terminal according to the transmission power control command and the indication information, some methods are applicable to other uplink and downlink configuration modes besides the uplink and downlink configuration mode 0.

Fig. 3 to fig. 6 are schematic diagrams of uplink subframes to which TPC commands are applied in first to fourth embodiments of the present invention, and the drawings are only schematic diagrams of the uplink subframes to which TPC commands are applied, and specific implementation manners of the uplink subframes to which TPC commands are applied may adopt the following ten implementation manners, but do not limit the following implementation manners; FIGS. 7 to 11 are schematic diagrams illustrating TPC command functions in the fifth to ninth embodiments of the present invention; fig. 12 to 14 are schematic diagrams of uplink subframes to which TPC commands for three scenarios are applied in a tenth embodiment of the present invention. The following describes an embodiment of the present invention in detail with reference to fig. 3 to 14.

The first embodiment is as follows:

in this embodiment, the base station eNB1 adopts TDD uplink and downlink configuration 0 in table 1, and the eNB1 sets uplink subframe groups, determines that uplink subframes 2 and 7 belong to the first uplink subframe group, determines that uplink subframes 3, 4, 8, and 9 belong to the second uplink subframe group, and performs power adjustment processes based on TPC commands on the two uplink subframe groups, respectively.

In radio frame # N, the TPC command sent by eNB1 to terminal UE1 via DCI on special subframe 1 would apply to uplink subframes 7 and 8; the TPC command sent by the eNB1 to the UE1 via DCI in the special subframe 6 may be applied to the uplink subframes 2 and 3 of the next radio frame # N +1, which is the prior art and is not described herein.

As shown in fig. 3, in this embodiment, an indication rule is preset, where the indication rule includes: when the downlink control information containing the transmission power control command is positioned in the upper half frame of a wireless frame, indicating an uplink subframe which is 5 subframes away from a subframe where the downlink control information containing the transmission power control command is positioned; when the downlink control information containing the transmission power control command is located in the second half of a radio frame, indicating an uplink subframe of the next radio frame with a preset subframe interval of 6 subframes away from a subframe where the downlink control information containing the transmission power control command is located, and indicating an uplink subframe applied by the TPC command at a subframe position where DCI carrying the TPC command is located, the method comprises the following steps:

the subframe in which the DCI carrying the TPC command corresponding to the uplink subframes 7 and 8 is located is the special subframe 1 and is located in the first half frame of the radio frame, and the UE1 obtains the uplink subframe to which the TPC command is applied as the previous subframe of the two uplink subframes, that is, the uplink subframe 7;

the subframe in which the DCI carrying the TPC command corresponding to uplink subframes 2 and 3 of the next radio frame is located is special subframe 6, and is located in the second half of the radio frame, then UE1 obtains that the uplink subframe to which the TPC command is applied is the second subframe of the two uplink subframes, that is, uplink subframe 3;

or, presetting an indication rule, wherein the indication rule comprises: when the downlink control information containing the transmission power control command is positioned in the upper half frame of a wireless frame, indicating an uplink subframe belonging to an uplink subframe group I; when the downlink control information containing the transmission power control command is positioned in the lower half frame of a wireless frame, indicating an uplink subframe belonging to an uplink subframe group two;

the subframe in which the DCI carrying the TPC command corresponding to the uplink subframes 7 and 8 is located is the special subframe 1 and is located in the first half of the radio frame, and the UE1 obtains the uplink subframe to which the TPC command is applied as the uplink subframe belonging to the uplink subframe group one, that is, the uplink subframe 7;

the subframe in which the DCI carrying the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is located is the special subframe 6, and is located in the second half of the radio frame, and the UE1 obtains the uplink subframe to which the TPC command is applied as the uplink subframe belonging to the uplink subframe group two, that is, the uplink subframe 3.

And the terminal determines the power adjustment quantity of the terminal on the uplink subframe applied by the TPC command as the power adjustment quantity corresponding to the TPC command.

In practical application, the subframe position of the DCI carrying the TPC command is used to indicate whether the uplink subframe to which the TPC command is applied is a previous subframe or a subsequent subframe, which may be preconfigured. In this embodiment, when the subframe in which the DCI carrying the TPC command is located in the first half of the radio frame, the uplink subframe to which the TPC command is applied is the previous subframe of the two uplink subframes, or when the subframe in which the DCI carrying the TPC command is located in the first half of the radio frame, the uplink subframe to which the TPC command is applied is the next subframe of the two uplink subframes, that is, the UE1 obtains the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 is applied as the next subframe of the two uplink subframes, that is, the uplink subframe 8; correspondingly, when the subframe in which the DCI carrying the TPC command is located in the second half of the radio frame, the uplink subframe to which the TPC command is applied may be the previous subframe of the two uplink subframes, that is, the uplink subframe to which the UE1 obtains the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is the previous subframe of the two uplink subframes, that is, the uplink subframe 2.

Similarly, the subframe position of the DCI carrying the TPC command is used to indicate whether the uplink subframe applied by the TPC command is an uplink subframe of the subframe group one or an uplink subframe of the subframe group two, which may be preconfigured. In this embodiment, when the subframe in which the DCI carrying the TPC command is located in the first half of the radio frame, the uplink subframe to which the TPC command is applied is an uplink subframe of the first subframe group, or when the subframe in which the DCI carrying the TPC command is located in the first half of the radio frame, the uplink subframe to which the TPC command is applied is an uplink subframe of the second subframe group, that is, the UE1 obtains the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 is applied, that is, the uplink subframe 8; correspondingly, when the subframe in which the DCI carrying the TPC command is located in the second half of the radio frame, the uplink subframe to which the TPC command is applied may be an uplink subframe of subframe group one, that is, the UE1 obtains the uplink subframe to which the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is applied, as the uplink subframe of subframe group one, that is, the uplink subframe 2.

Example two:

In this embodiment, an indication rule is preset, where the indication rule includes: when the index of the radio frame containing the transmission power control command is an even number, indicating an uplink subframe which is 5 subframes away from a subframe where downlink control information containing the transmission power control command is located by a preset subframe interval; when the index of the radio frame containing the transmission power control command is an odd number, indicating an uplink subframe of a next radio frame with a preset subframe interval of 6 subframes away from a subframe where downlink control information containing the transmission power control command is located, and using odd-even number characteristics of the index of the radio frame where DCI containing the TPC command is located to indicate the uplink subframe to which the TPC command applies, the method comprises the following steps:

when the index N of the radio frame # N is an even number, the UE1 obtains that the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 is applied is the previous subframe of the two uplink subframes, i.e., uplink subframe 7; the uplink subframe to which the TPC command that the UE1 acquires the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is applied is the previous subframe of the two uplink subframes, i.e., uplink subframe 2, as shown in fig. 4;

when the index N of the radio frame # N is an odd number, the UE1 obtains that the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 is applied is the next subframe of the two uplink subframes, i.e., uplink subframe 8; the uplink subframe to which the UE1 obtains the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is the next subframe of the two uplink subframes, i.e., uplink subframe 3, as shown in fig. 5;

or, presetting an indication rule, wherein the indication rule comprises: when the index of the wireless frame containing the transmission power control command is an even number, indicating an uplink subframe belonging to an uplink subframe group I; when the index of the wireless frame containing the transmission power control command is an odd number, indicating an uplink subframe belonging to an uplink subframe group two;

when the index N of the radio frame # N is an even number, the UE1 obtains that the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 is applied is an uplink subframe belonging to the uplink subframe group one, that is, the uplink subframe 7; the uplink subframe to which the TPC command that the UE1 acquires the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is applied is an uplink subframe belonging to the uplink subframe group one, that is, uplink subframe 2, as shown in fig. 4;

when the index N of the radio frame # N is an odd number, the UE1 obtains that the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 is applied is an uplink subframe belonging to the uplink subframe group two, that is, the uplink subframe 8; the uplink subframe to which the TPC command that the UE1 acquires the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is applied is an uplink subframe belonging to the uplink subframe group two, that is, an uplink subframe 3, as shown in fig. 5;

In practical applications, the odd-even characteristic of the index of the radio frame where the TPC command is located is used to indicate whether the uplink subframe to which the TPC command is applied is a previous subframe or a subsequent subframe, which may be preconfigured. In this embodiment, when the index of the radio frame is set to be an even number, the uplink subframe to which the TPC command applies is a previous subframe of the two uplink subframes, or when the index of the radio frame is set to be an even number, the uplink subframe to which the TPC command applies is a subsequent subframe of the two uplink subframes, that is, the uplink subframe to which the TPC command corresponding to uplink subframes 7 and 8 is applied is obtained by UE1 is a subsequent subframe of the two uplink subframes, that is, uplink subframe 8; the uplink subframe to which the UE1 obtains the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is the next subframe of the two uplink subframes, i.e., uplink subframe 3, as shown in fig. 5; correspondingly, when the index of the radio frame is odd, the same process as the above method is performed, and details are not repeated here.

Example three:

In this embodiment, the indicating, by the uplink subframe group information, the uplink subframe to which the TPC command is applied includes:

when the UE1 receives the uplink subframe group information, the UE1 obtains the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 applies as an uplink subframe belonging to the uplink subframe group two, that is, the uplink subframe 8; the uplink subframe to which the TPC command that the UE1 acquires the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is applied is an uplink subframe belonging to the uplink subframe group two, that is, an uplink subframe 3, as shown in fig. 5;

among them, the eNB1 transmits uplink subframe group information to the terminal through physical layer signaling or Radio Resource Control (RRC) signaling.

In practical application, whether the uplink subframe to which the TPC command is applied is the uplink subframe group two or the uplink subframe group one may be preconfigured through the uplink subframe group information. In this embodiment, the uplink subframe to which the TPC command is applied is set as an uplink subframe belonging to the uplink subframe group two, or the uplink subframe to which the TPC command is applied may be set as an uplink subframe belonging to the uplink subframe group one, that is, the UE1 obtains the uplink subframe to which the TPC command corresponding to the uplink subframes 7 and 8 is applied as an uplink subframe belonging to the uplink subframe group one, that is, the uplink subframe 7; the uplink subframe to which the UE1 obtains the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is the uplink subframe belonging to the uplink subframe group one, i.e., uplink subframe 2, as shown in fig. 4.

Example four:

in this embodiment, the base station eNB1 adopts TDD uplink and downlink configuration 0 in table 1, and the eNB1 sets uplink subframe groups, determines that the uplink subframe 2 belongs to the uplink subframe group one, determines that the uplink subframes 3, 4, 7, 8, and 9 belong to the uplink subframe group two, and performs power adjustment processes based on TPC commands on the two uplink subframe groups, respectively.

In radio frame # N, the TPC command sent by eNB1 to terminal UE1 via DCI on special subframe 1 would apply to uplink subframes 7 and 8; the TPC commands sent by eNB1 to UE1 via DCI on special subframe 6 would apply to uplink subframes 2 and 3 with the next radio frame # N + 1.

when the UE1 receives the uplink subframe group information, the UE1 obtains the uplink subframes to which the TPC command corresponding to the uplink subframes 7 and 8 is applied as the uplink subframes belonging to the uplink subframe group two, that is, the uplink subframes 7 and 8; the uplink subframe to which the TPC command that the UE1 acquires the TPC command corresponding to the uplink subframes 2 and 3 of the next radio frame is applied is an uplink subframe belonging to the uplink subframe group two, that is, an uplink subframe 3, as shown in fig. 6;

the eNB1 sends the uplink subframe group information to the terminal through physical layer signaling or radio resource control RRC signaling.

Example five:

In radio frame # N, the TPC command (assumed to be TPC 1) sent by eNB1 to UE1 through DCI Format3 in special subframe 1 is applied to uplink subframes 7 and 8, which is the prior art and is not described herein.

In this embodiment, the eNB1 additionally sends one TPC command (assumed to be TPC 5) to the UE1 by reusing the TPC command field in the DCI Format3, so as to indicate an uplink subframe to which the TPC1 applies, as shown in fig. 7, including:

the UE1 obtains the uplink subframe to which the TPC1 applies according to the value of the TPC5, where table 2 is a subframe index table corresponding to the value of the TPC5, and as shown in table 2, the uplink subframe corresponding to the value of the TPC5 is configured by the system.

Assuming that the value of TPC5 is 01, the uplink subframe to which TPC1 is applied is subframe 8.

TABLE 2

In this embodiment, the UE1 further receives an RRC signaling that is sent by the eNB1 and carries two TPC command indexes, where the two TPC command indexes are used for the UE1 to obtain two TPC commands from the received DCI Format 3.

The UE1 determines that its power adjustment on uplink subframe 8 is the power adjustment corresponding to TPC 1.

Example six:

in this embodiment, the base station eNB1 adopts TDD uplink and downlink configuration 0 in table 1, and the eNB1 sets uplink subframe groups, determines that the uplink subframes 2 and 7 belong to the uplink subframe group one, determines that the uplink subframes 3, 4, 8, and 9 belong to the uplink subframe group two, and divides the uplink subframe group into the second subframe group, and performs the power adjustment process based on the TPC command on the two subframe groups respectively.

In this embodiment, the eNB1 additionally sends one TPC command (assumed to be TPC 5) to the UE1 by reusing the TPC command field in the DCI Format3, where the TPC command is used to indicate an offset value relative to a power adjustment amount corresponding to the TPC1, and as shown in fig. 8, the method includes:

the UE1 obtains an offset value corresponding to the power adjustment amount corresponding to the TPC1 according to the value of the TPC5, where table 3 is a schematic table of the offset value corresponding to the value of the TPC5, and as shown in table 3, the offset value corresponding to the value of the TPC5 is configured by the system;

when the value of the TPC1 is 10, the power adjustment amount corresponding to the TPC1 is 1dB according to the 3GPP TS 36.213; when the value of TPC5 is 11, the offset value corresponding to TPC5 is 3 dB.

TPC5	Offset value (dB)
		00	-1
01	0
		10	1
11	3

TABLE 3

The UE1 determines that the power adjustment amounts of the uplink subframes 7 and 8 respectively correspond to the power adjustment amount corresponding to the TPC1 and the power adjustment amount obtained by adding the offset value corresponding to the TPC5 to the power adjustment amount corresponding to the TPC 1; for example: the UE1 determines that the power adjustment amount on the uplink subframe 7 corresponds to the power adjustment amount corresponding to the TPC1, that is, the power adjustment amount of the uplink subframe 7 is 1 dB; the UE1 determines that the power adjustment amount of the uplink subframe 8 corresponds to the power adjustment amount corresponding to TPC1 plus the offset value corresponding to TPC5, i.e., the power adjustment amount of the uplink subframe 8 is 4 dB.

Or, the UE1 still determines, according to the prior art, that the TPC1 is applied to the uplink subframes 7 and 8, and determines that the TPC5 for indicating the offset value is applied to the subframe belonging to the uplink subframe group preset by the system in the two subframes, for example, assuming that the uplink subframe group preset by the system is the uplink subframe group two, the UE1 determines that the TPC5 is applied to the uplink subframe 8; then, the UE1 determines that the power adjustment amount on the uplink subframe 7 is the power adjustment amount corresponding to the TPC1, i.e., 1 dB; the UE1 determines that the power adjustment amount in the uplink subframe 8 is the sum of the power adjustment amount corresponding to TPC1 and the offset value corresponding to TPC5, i.e., 4 dB.

Alternatively, the UE1 determines the amount of power adjustment on the uplink subframes 7 and 8 according to the system configuration correspondence.

Example seven:

In this embodiment, the eNB1 additionally sends one TPC command (assumed to be TPC 5) to the UE1 by reusing the TPC command field in the DCI Format3, so as to indicate the power adjustment amount, as shown in fig. 9, the method includes:

the UE1 obtains the power adjustment amount according to the value of the TPC5, where table 4 is a power adjustment amount indication table corresponding to the value of the TPC5, and as shown in table 4, the power adjustment amount corresponding to the value of the TPC5 is configured by the system;

assuming that the value of TPC1 is 10, the power adjustment amount corresponding to TPC1 is 1dB according to 3GPP TS 36.213; assuming that the value of TPC5 is 11, the offset value corresponding to TPC5 is 3 dB.

TPC5	Amount of power adjustment (dB)
		00	-1
01	0
		10	1
11	3

TABLE 4

The UE1 determines that the power adjustment amounts in the uplink subframes 7 and 8 correspond to the power adjustment amount corresponding to TPC1 and the power adjustment amount corresponding to TPC5, respectively, one-to-one, for example: the UE1 determines that the power adjustment amount on the uplink subframe 7 corresponds to the power adjustment amount corresponding to the TPC1, that is, the power adjustment amount of the uplink subframe 7 is 1 dB; the UE1 determines that the power adjustment amount of the uplink subframe 8 corresponds to the sum of the power adjustment amounts respectively corresponding to the TPC5, i.e., the power adjustment amount of the uplink subframe 8 is 3 dB.

Or, the UE1 still determines, according to the prior art, that the TPC1 is applied to the uplink subframes 7 and 8, and determines that the TPC5 is applied to the subframe belonging to the uplink subframe group preset by the system in the two subframes, for example, assuming that the uplink subframe group preset by the system is the uplink subframe group two, the UE1 determines that the TPC5 is applied to the uplink subframe 8; then, the UE1 determines that the power adjustment amount on the uplink subframe 7 is the power adjustment amount corresponding to the TPC1, i.e., 1 dB; since TPC1 and TPC5 are applied to the same subframe, that is, uplink subframe 8, UE1 determines that the power adjustment amount in uplink subframe 8 is the sum of the power adjustment amount corresponding to TPC1 and the power adjustment amount corresponding to TPC5, that is, 4dB, or is the power adjustment amount corresponding to TPC5, that is, 3 dB.

In addition, when the system presets TPC5 to be applied to the subframe belonging to the uplink subframe group two, the system may configure a larger range of the power adjustment value for TPC5 so as to effectively overcome the influence of downlink interference, and table 5 shows a second power adjustment value corresponding to the value of TPC5, where as shown in table 5, the power adjustment value corresponding to the value of TPC5 is configured by the system.

TPC5	Amount of power adjustment (dB)
		00	-3
01	0
		10	3
11	5

TABLE 5

When the uplink subframe applied by TPC5 and the uplink subframe applied by TPC1 are the same subframe, the terminal determines that the power adjustment amount of the terminal in the subframe is the sum of the power adjustment amount corresponding to TPC1 and the power adjustment amount corresponding to TPC5, or, according to a rule predefined by the system, the terminal determines that the power adjustment amount of the terminal in the subframe is one of the power adjustment amount corresponding to TPC1 and the power adjustment amount corresponding to TPC5, for example, when the system configures a larger power adjustment amount range for TPC5, the terminal determines that the power adjustment amount of the terminal in the subframe is the power adjustment amount corresponding to TPC 5.

Example eight:

In radio frame # N, the TPC command (assumed to be TPC 1) sent by eNB1 to UE1 through DCI Format3 in special subframe 1 is applied to uplink subframes 7 and 8; the TPC command (assumed to be TPC 2) sent by the eNB1 to the terminal UE2 through the DCI Format3 in the special subframe 1 is also applied to the uplink subframes 7 and 8, and the process is the prior art and is not described herein again.

In this embodiment, the eNB1 additionally sends a TPC command (assumed to be TPC 5) to the UE1 and the UE2 by reusing the TPC command field in the DCI Format3, so as to indicate the uplink subframe to which the TPC1 and the TPC2 are applied, that is, the indication information sent by the eNB1 to the UE1 and the UE2 is the same indication information TPC5, as shown in fig. 10, then:

the UE1 obtains an uplink subframe to which the TPC1 applies according to the value of the TPC5, and as shown in table 2, the uplink subframe corresponding to the value of the TPC5 is configured by the system; assuming that the value of the TPC5 is 01, the uplink subframe to which the TPC1 is applied is subframe 8;

the UE2 obtains the uplink subframe applied by the TPC2 according to the value of the TPC5, as shown in table 2, according to the above assumption, assuming that the value of the TPC5 is 01, the uplink subframe applied by the TPC2 is also the subframe 8.

In this embodiment, the UE1 and the UE2 further receive an RRC signaling that is sent by the eNB1 and carries two TPC command indexes, where the two TPC command indexes are used for the UE1 and the UE2 to obtain two TPC commands from the received DCI Format 3.

The UE1 determines that the power adjustment amount of the uplink subframe 8 is the power adjustment amount corresponding to the TPC 1; the UE2 determines that its power adjustment on uplink subframe 8 is the power adjustment corresponding to TPC 2.

Example nine:

In radio frame # N, the TPC command (assumed to be TPC 1) sent by eNB1 to terminal UE1 through DCI Format3A in special subframe 1 is applied to uplink subframes 7 and 8, which is the prior art and is not described herein.

In this embodiment, since one TPC command in the DCI Format3A only has 1bit, the eNB1 additionally sends two TPC commands (assumed to be TPC5 and TPC 6) to the UE1 by reusing the TPC command field in the DCI Format3A, so as to indicate an uplink subframe to which the TPC1 applies, as shown in fig. 11, the method includes:

the UE1 obtains an uplink subframe to which the TPC1 applies according to values of the TPC5 and the TPC6, where table 6 is a subframe index table corresponding to the values of the TPC5 and the TPC6, and as shown in table 6, uplink subframes corresponding to the values of the TPC5 and the TPC6 are configured by the system;

assuming that the value of TPC5 is 0 and the value of TPC6 is 1, the two jointly indicate that the uplink subframe to which TPC1 applies is subframe 8.

TABLE 6

In this embodiment, the UE1 further receives an RRC signaling that is sent by the eNB1 and carries three TPC command indexes, where the three TPC command indexes are used for the UE1 to obtain three TPC commands from the received DCI Format 3A.

Example ten:

In radio frame # N, the TPC command (assumed to be TPC 1) sent by eNB1 to UE1 through DCI Format3 in special subframe 1 is applied to uplink subframes 7 and 8; the TPC command (assumed to be TPC 2) sent by the eNB1 to the UE1 through the DCI Format3 on the special subframe 6 is applied to the uplink subframes 2 and 3 of the next radio frame # N + 1.

In this embodiment, the eNB1 sends a TPC command (assumed to be TPC 1) to the UE1 through DCI Format3 on the downlink subframe 0, so as to perform power adjustment on the physical uplink control channel PUCCH on the uplink subframe 4; the eNB1 sends a TPC command (assumed to be TPC 2) to the UE1 through DCI Format3 in the special subframe 1, so as to perform power adjustment on the physical uplink control channel PUCCH in the uplink subframe 7; the eNB1 sends a TPC command (assumed to be TPC 3) to the UE1 through DCI Format3 in the downlink subframe 5, so as to perform power adjustment on the physical uplink control channel PUCCH in the uplink subframe 9; the eNB1 sends a TPC command (assumed to be TPC4 ″) to the UE1 through DCI Format3 in the special subframe 6, and is configured to perform power adjustment on the physical uplink control channel PUCCH in the uplink subframe 2 of the radio frame # N + 1.

Since the uplink subframe 4/7/9 belongs to the uplink subframe group two and may be subjected to severe downlink interference to affect the uplink transmission performance of the PUCCH, it may be considered to limit the PUCCH to be transmitted only on the uplink subframe belonging to the uplink subframe group one, and then:

since TPC 1/TPC 2/TPC 3 are not utilized in the corresponding uplink subframe 4/7/9, it may be further considered to apply these TPC commands to the physical uplink shared channel PUSCH of the designated uplink subframe, for example:

scenario one, reuse TPC1 on PUSCH of uplink subframe 7, apply TPC1 on uplink subframe 8 through indication information or through a system predefined manner, as shown in fig. 12; the UE1 determines that the power adjustment amount of the UE in the uplink subframe 7 is the power adjustment amount corresponding to TPC1 ×, and determines that the power adjustment amount of the UE in the uplink subframe 8 is the power adjustment amount corresponding to TPC 1;

alternatively, in scenario two, TPC2 is reused on PUSCH of uplink subframe 7, TPC1 is applied to uplink subframe 8 through indication information or through a system predefined manner, as shown in fig. 13; the UE1 determines that the power adjustment amount of the UE in the uplink subframe 7 is the power adjustment amount corresponding to TPC2 ×, and determines that the power adjustment amount of the UE in the uplink subframe 8 is the power adjustment amount corresponding to TPC 1;

or, in scenario three, the TPC3 is reused on the PUSCH of the uplink subframe 2 of the radio frame # N +1, and the TPC2 is applied to the uplink subframe 3 of the radio frame # N +1 through indication information or in a system predefined manner, as shown in fig. 14; the UE1 determines that the power adjustment amount of the UE in the uplink subframe 2 of the radio frame # N +1 is the power adjustment amount corresponding to TPC3 ×, and determines that the power adjustment amount of the UE in the uplink subframe 3 of the radio frame # N +1 is the power adjustment amount corresponding to TPC 2;

the indication information includes the indication information described in the first to fifth embodiments.

In this example, the UE1 further detects a DCI Format3 carrying TPC1 × TPC2 × TPC3 × TPC4 in the downlink subframe 0/1/5/6 through a transmission power control command-physical uplink control channel-radio network temporary identifier (TPC-PUCCH-RNTI), thereby obtaining a corresponding TPC command.

Fig. 15 is a schematic structural diagram of an uplink power control system according to an embodiment of the present invention, and as shown in fig. 15, the system includes: a terminal 30 and a base station 40; wherein,

the terminal 30 includes: a receiving module 31 and a determining module 33; wherein,

the receiving module 31 is configured to receive a transmission power control command and indication information;

the determining module 33 is configured to determine a power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information.

Preferably, the terminal further includes an obtaining module 32, configured to obtain, according to the indication information, an uplink subframe to which the transmission power control command applies;

the determining module 33 is configured to determine that the power adjustment amount on the uplink subframe acquired by the acquiring module 32 is the power adjustment amount corresponding to the transmission power control command.

Preferably, the indication information is implicit indication information; the implicit indication information includes: the position of a subframe where downlink control information containing a transmission power control command is located, odd-even characteristics of an index of a radio frame where the downlink control information containing the transmission power control command is located, and uplink subframe group information.

Preferably, the obtaining module 32 is configured to obtain a subframe position where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

Preferably, the receiving module 31 is further configured to receive uplink subframe group information;

the obtaining module 32 is configured to obtain a subframe position where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

Preferably, the obtaining module 32 is configured to obtain odd-even characteristics of an index of a radio frame where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

the obtaining module 32 is configured to obtain odd and even characteristics of an index of a radio frame where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

the obtaining module 32 is configured to obtain an uplink subframe belonging to a preset uplink subframe group as the uplink subframe to which the transmission power control command applies.

Preferably, the indication information is an explicit indication signaling, and the display indication signaling includes: reusing the transmission power control command field; the reuse transmission power control command field includes at least one transmission power control command.

The receiving module 31 is configured to receive at least one transmission power control command;

the obtaining module 32 is configured to obtain, according to the at least one transmission power control command received by the receiving module 31, an uplink subframe to which the transmission power control command applies;

Preferably, the receiving module 31 is configured to receive at least one transmission power control command;

the obtaining module 32 is configured to obtain, according to the at least one transmission power control command received by the receiving module 31, an offset value of a power adjustment amount corresponding to the transmission power control command;

the determining module 33 is configured to determine the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the offset value of the power adjustment amount.

the obtaining module 32 is configured to obtain a power adjustment according to the at least one transmission power control command received by the receiving module 31;

the determining module 33 is configured to determine the power adjustment amount of the at least one uplink subframe according to the power adjustment amount corresponding to the transmission power control command and the power adjustment amount acquired by the acquiring module 32.

Preferably, the receiving module 31 is configured to receive radio resource control signaling including at least one transmission power control command index, and receive the at least one transmission power control command according to the at least one transmission power control command index.

Preferably, the determining module 33 is configured to determine, when the uplink subframe corresponding to the transmission power control command and the uplink subframe corresponding to the indication information are the same subframe, that the power adjustment amount on the uplink subframe is the sum of the power adjustment amount corresponding to the transmission power control command and the power adjustment amount obtained according to the indication information; or according to a preset rule, determining the power adjustment amount on the uplink subframe as the power adjustment amount corresponding to the transmission power control command or the power adjustment amount obtained according to the indication information.

In practical application, the obtaining module 32 and the determining module 33 can be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), or a Programmable logic Array (FPGA); the receiving module 31 may be implemented by a receiver in a terminal in practical applications.

The base station 40 comprises a sending module 41 for sending transmission power control commands and indication information; wherein,

In practical applications, the sending module 41 may be implemented by a transmitter in a base station.

In the embodiments provided in the present invention, it should be understood that the disclosed method and apparatus may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Alternatively, the integrated unit according to the embodiment of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An uplink power control method, comprising:

2. The method of claim 1, wherein the determining the amount of power adjustment on at least one uplink subframe according to the transmission power control command and indication information comprises:

3. The method of claim 2, wherein the indication information is implicit indication information; the implicit indication information includes: the position of a subframe where downlink control information containing a transmission power control command is located, odd-even characteristics of an index of a radio frame where the downlink control information containing the transmission power control command is located, and uplink subframe group information;

4. The method according to any one of claims 2 or 3, wherein the obtaining, by the terminal, the uplink subframe to which the transmission power control command applies according to the indication information comprises:

5. The method according to any one of claims 2 or 3, wherein the obtaining, by the terminal, the uplink subframe to which the transmission power control command applies according to the indication information comprises:

6. The method according to any one of claims 2 or 3, wherein the obtaining, by the terminal, the uplink subframe to which the transmission power control command applies according to the indication information comprises:

7. The method according to any one of claims 2 or 3, wherein the obtaining, by the terminal, the uplink subframe to which the transmission power control command applies according to the indication information comprises:

8. The method according to any one of claims 2 or 3, wherein the obtaining, by the terminal, the uplink subframe to which the transmission power control command applies according to the indication information comprises:

9. The method of claim 1,

the indication information is an explicit indication signaling, and the display indication signaling includes: reusing the transmission power control command field; the reuse transmission power control command field includes at least one transmission power control command.

10. The method of claim 9, wherein the determining the power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information comprises:

11. The method of claim 9, wherein the determining the power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information comprises:

12. The method of claim 9, wherein the determining the power adjustment amount on at least one uplink subframe according to the transmission power control command and the indication information comprises:

13. The method according to claim 10 or 11 or 12, wherein the terminal receives at least one transmission power control command, comprising:

14. The method of claim 13, wherein the method comprises:

15. An uplink power control method, comprising:

16. A terminal, characterized in that the terminal comprises: a receiving module and a determining module; wherein,

17. The terminal according to claim 16, wherein the terminal further comprises an obtaining module, configured to obtain, according to the indication information, an uplink subframe to which the transmission power control command applies;

18. The terminal of claim 17, wherein the indication information is implicit indication information; the implicit indication information includes: the position of a subframe where downlink control information containing a transmission power control command is located, odd-even characteristics of an index of a radio frame where the downlink control information containing the transmission power control command is located, and uplink subframe group information.

19. The terminal according to claim 17 or 18, wherein the obtaining module is configured to obtain a subframe location where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

20. The terminal according to claim 17 or 18,

the receiving module is further configured to receive uplink subframe group information;

21. The terminal according to claim 17 or 18, wherein the obtaining module is further configured to obtain odd and even characteristics of an index of a radio frame where downlink control information including the transmission power control command is located, and obtain an uplink subframe to which the transmission power control command applies according to a pre-configured indication rule;

22. The terminal according to claim 17 or 18,

23. The terminal according to claim 17 or 18,

24. The terminal according to claim 17, wherein the indication information is an explicit indication signaling, and the display indication signaling comprises: reusing the transmission power control command field; the reuse transmission power control command field includes at least one transmission power control command.

25. The terminal of claim 24,

the receiving module is configured to receive at least one transmission power control command;

26. The terminal of claim 24,

27. The terminal of claim 24,

28. The terminal according to any of claims 24 to 27, wherein the receiving module is configured to receive radio resource control signaling comprising at least one transmission power control command index, and to receive the at least one transmission power control command according to the at least one transmission power control command index.

29. The terminal of claim 28,

the determining module is configured to determine, when the uplink subframe corresponding to the transmission power control command and the uplink subframe corresponding to the indication information are the same subframe, that the power adjustment amount on the uplink subframe is the sum of the power adjustment amount corresponding to the transmission power control command and the power adjustment amount obtained according to the indication information; or, according to a preset rule, determining the power adjustment amount on the uplink subframe as the power adjustment amount corresponding to the transmission power control command or the power adjustment amount obtained according to the indication information.

30. A base station, comprising a transmitting module configured to transmit a transmission power control command and indication information; wherein,

31. An uplink power control system, characterized in that the system comprises the terminal of any of claims 15 to 29 and the base station of claim 30.