CN103428839B

CN103428839B - A kind of processing method and processing device of TPC command word

Info

Publication number: CN103428839B
Application number: CN201310344529.0A
Authority: CN
Inventors: 刘吉凤; 杨宝振
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-08-08
Filing date: 2013-08-08
Publication date: 2017-03-01
Anticipated expiration: 2033-08-08
Also published as: CN103428839A

Abstract

The invention discloses a kind of processing method and processing device of TPC command word, in order to ensure the service behaviour of transmitting terminal, and then the overall performance of safeguards system.The method is：Transmitting terminal discontinuously sends data to receiving terminal, and receive the TPC command word that receiving terminal returns, wherein, transmitting terminal is directed to the TPC command word send in continuous L+1 subframe after the m-th subframe that the initial time that no data sends starts for the receiving terminal and is not responded, and other TPC command words that transmitting terminal sends for receiving terminal are responded, wherein, M is directed to the feedback delay of TPC command word, the number of subframes that L sends with respect to receiving terminal no data for transmitting terminal for receiving terminal.So, both can ensure that link performance, and can farthest avoid transmit power that too high, too low or wave phenomenon occurs again, and then the effective guarantee service behaviour of transmitting terminal, and the overall performance having ensured system.

Description

TPC command word processing method and device

Technical Field

The present invention relates to transmission power control technologies, and in particular, to a method and an apparatus for processing TPC command words.

Background

In a mobile communication system, when a network side and a terminal side perform data interaction, each time a sending end sends data, a receiving end generates a TPC command word according to a data receiving condition, the sending end performs Power adjustment according to a Transmit Power Control (TPC) command word fed back by the receiving end, and performs next data transmission by using the adjusted Power, and if the receiving end does not receive any data (that is, the sending end does not have data transmission), an invalid TPC command word is also generated and fed back to the sending end, wherein the sending end may be the network side, the receiving end may be the terminal side, downlink data transmission is performed at this time, correspondingly, the sending end may be the terminal side, the receiving end may be the network side, and uplink data transmission is performed at this time. In the receiving standard (3 GPP 25.224), although it is clear that the transmitting end should ignore the invalid TPC command word generated by the receiving end when no data is transmitted, no matter a network manufacturer or a chip manufacturer, the TPC command words cannot be unified to generate a delay, and the generating manners of the TPC command words of the manufacturers are different, that is, the processing mechanisms of the receiving end are different, so that the transmitting end cannot accurately know the transmission time of the invalid TPC command word, and the transmitting end still processes the received invalid TPC command word, which will affect the system performance.

The following description is given by taking downlink Discontinuous Transmission as an example, but the present invention is not limited to the case of Discontinuous Transmission of downlink data, and is also applicable to the case of Discontinuous Transmission of uplink data, including Discontinuous Transmission of data existing in scenes such as frame division Multiplexing (TDM), Discontinuous Transmission (DTX), and control channels.

After receiving the data sent by the sending end, the receiving end may generate a TPC command word with a delay of one subframe or two subframes, and when the downlink data is sent discontinuously, the receiving end may generate an invalid TPC command word to control the transmission power of the system, and detailed analysis is performed below for this situation.

Referring to scenario 1 shown in fig. 1, where x represents an invalid TPC command word.

The time delay of generating TPC command words by a receiving terminal 1 is one subframe, when a transmitting terminal transmits data in a subframe N +00, a subframe N +01, a subframe N +02 and a subframe N +03, TPC command words generated by the receiving terminal 1 in the subframe N +01, the subframe N +02, the subframe N +03 and the subframe N +04 are TPC00, TPC01, TPC02 and TPC03 respectively, and when the transmitting terminal does not transmit data in the subframe N +04, the subframe N +05, the subframe N +06 and the subframe N +07, the receiving terminal 1 generates invalid TPC command words in the subframe N +05, the subframe N +06, the subframe N +07 and the subframe N +08 respectively; where the TPC command word is delayed by one sub-frame. Generally, a sending end responds to each TPC command word successively, and when an invalid TPC command word is responded for multiple times (the invalid TPC command word is added as the sending power of an up-regulation system), the sending power is raised continuously, which causes greater interference to a network system, and deteriorates Key Performance Indicator (KPI) indexes and user perception. The manner in which the receiving end 1 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +08 to the sub-frame N +15 is similar to the manner in which the receiving end 1 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +00 to the sub-frame N +07, and is not described herein again.

The time delay of generating TPC command words by the receiving end 2 is two subframes, when the transmitting end transmits data in subframe N +00, subframe N +01, subframe N +02 and subframe N +03, the TPC command words generated by the receiving end 2 in subframe N +02, subframe N +03, subframe N +04 and subframe N +05 are TPC00, TPC01, TPC02 and TPC03 respectively, and when the transmitting end transmits no data in subframe N +04, subframe N +05, subframe N +06 and subframe N +07, the receiving end 2 generates invalid TPC command words in subframe N +06, subframe N +07, subframe N +08 and subframe N +09 respectively; wherein the TPC command word is delayed by two subframes. Generally, a sending end responds to each TPC command word successively, and when an invalid TPC command word is responded for multiple times (the invalid TPC command word is added to the sending power of the up-regulation system), the sending power is raised continuously, so that greater interference is generated on a network system, and KPI indexes and user perception are deteriorated. The manner in which the receiving end 2 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +08 to the sub-frame N +15 is similar to the manner in which the receiving end 2 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +00 to the sub-frame N +07, and is not described herein again.

Referring to scenario 2 shown in fig. 2, where x represents an invalid TPC command word.

The time delay of generating the TPC command word by the receiving end 1 is one subframe, and when the transmitting end transmits data in the subframe N +00, the subframe N +01, the subframe N +02 and the subframe N +03, the TPC command words generated by the receiving end 1 in the subframe N +01, the subframe N +02, the subframe N +03 and the subframe N +08 are TPC00, TPC01, TPC02 and TPC03, respectively. The manner in which the receiving end 1 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +08 to the sub-frame N +15 is similar to the manner in which the receiving end 1 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +00 to the sub-frame N +07, and is not described herein again.

The time delay of generating the TPC command word by the receiving end 2 is two subframes, when the transmitting end transmits data in subframe N +00, subframe N +01, subframe N +02 and subframe N +03, the TPC command words generated by the receiving end 2 in subframe N +02, subframe N +03 and subframe N +08 are TPC00, TPC01 and TPC03, respectively, wherein when the transmitting end transmits data in subframe N +02, the transmitting end does not allocate resources in subframe N +04 to carry the TPC02 generated by the receiving end 2, and when the transmitting end allocates resources in subframe N +08 to carry the TPC command word generated by the receiving end 2, the receiving end 2 has generated TPC03 for the data transmitted by the transmitting end in subframe N +03, so the TPC command word transmitted by the receiving end 2 in subframe N +08 is TPC03 according to the principle of transmitting the latest command word; further, the transmitting end does not transmit data in the subframe N +07, so that the receiving end 2 does not receive the data transmitted by the transmitting end in the subframe N +09 after the delay of two subframes, thereby generating an invalid TPC command word. The manner in which the receiving end 2 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +08 to the sub-frame N +15 is similar to the manner in which the receiving end 2 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +00 to the sub-frame N +07, and is not described herein again.

Referring to scenario 3 shown in fig. 3, where x represents an invalid TPC command word.

The time delay of generating the TPC command word by the receiving end 1 is one subframe, when the transmitting end transmits data in the subframe N +00, the subframe N +01, the subframe N +02 and the subframe N +03, the receiving end 1 does not allocate resources in the subframe N +01, the subframe N +02 and the subframe N +03 to bear the TPC command word generated by the receiving end 1, and when the transmitting end allocates resources in the subframe N +04 to bear the TPC command word generated by the receiving end 1, the receiving end 1 already generates TPC03 for the data transmitted by the transmitting end in the subframe N +03, so the TPC command word transmitted by the receiving end 1 in the subframe N +04 is TPC03 according to the principle of transmitting the latest command word; when the transmitting end transmits no data in the subframe N +04, the subframe N +05, the subframe N +06 and the subframe N +07, the receiving end 1 respectively generates invalid TPC command words in the subframe N +05, the subframe N +06 and the subframe N + 07; wherein the TPC command word is delayed by one subframe. Generally, a sending end responds to each TPC command word successively, and when an invalid TPC command word is responded for multiple times (the invalid TPC command word is added to the sending power of the up-regulation system), the sending power is raised continuously, so that greater interference is generated on a network system, and a KPI index is deteriorated. The manner in which the receiving end 1 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +08 to the sub-frame N +15 is similar to the manner in which the receiving end 1 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +00 to the sub-frame N +07, and is not described herein again.

The time delay of generating the TPC command word by the receiving end 2 is two subframes, when the transmitting end transmits data in subframe N +00, subframe N +01, subframe N +02 and subframe N +03, the transmitting end does not allocate resources in subframe N +01, subframe N +02 and subframe N +03 to bear the TPC command word generated by the receiving end 2, and when the transmitting end allocates resources in subframe N +04 to bear the TPC command word generated by the receiving end 2, the receiving end 2 has generated TPC02 for the data transmitted by the transmitting end in subframe N +02 and TPC03 for the data transmitted by the transmitting end in subframe N +03, so that the receiving end 2 transmits the TPC command word as TPC02 in subframe N +04 according to the principle of transmitting the latest command word, and the TPC command word transmitted by the receiving end 2 in subframe N +05 is TPC 03; when the transmitting end transmits no data in the subframe N +04, the subframe N +05, the subframe N +06 and the subframe N +07, the receiving end 2 respectively generates invalid TPC command words in the subframe N +06 and the subframe N + 07; wherein the TPC command word is delayed by two subframes. Generally, a sending end responds to each TPC command word successively, and when an invalid TPC command word is responded for multiple times (the invalid TPC command word is added to the sending power of the up-regulation system), the sending power is raised continuously, so that greater interference is generated on a network system, and KPI indexes and user perception are deteriorated. The manner in which the receiving end 2 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +08 to the sub-frame N +15 is similar to the manner in which the receiving end 2 generates the corresponding TPC command word for the data transmission condition of the transmitting end in the sub-frame N +00 to the sub-frame N +07, and is not described herein again.

Corresponding to the above scenario 1, scenario 2, and scenario 3, the following respectively describes the response mode after the transmitting end receives the TPC command word sent by the receiving end in each scenario.

Referring to scenario 4 shown in fig. 4, where x represents an invalid TPC command word and UP represents an UP-regulation of the system's transmit power.

Corresponding to scenario 1 shown in fig. 1, in scenario 4, the receiving end 1 generates corresponding TPC command words according to the data receiving conditions in the sub-frames N +00 to N +15, and correspondingly, in scenario 4, after receiving the TPC command words sent by the receiving end 1, the sending end adopts a response mode as follows:

the TPC command words responded by the sending end in the subframe N +02 and the subframe N +03 are TPC command words TPC00 and TPC01 generated by the receiving end 1 in the subframe N +01 and the subframe N + 02; a TPC command word TPC1 responded by a sending terminal in a subframe N +08 is a TPC command word generated by the receiving terminal 1 after accumulation of a TPC command word TPC02, a TPC03 and three invalid TPC command words generated by a subframe N +03, a subframe N +04, a subframe N +05, a subframe N +06 and a subframe N + 07; the TPC command word responded by the transmitting end at the sub-frame N +09 is an invalid TPC command word generated by the receiving end 1 at the sub-frame N +08 (it is assumed here that the invalid TPC command word is UP). Generally, a sending end responds to each TPC command word successively, this scenario will respond to "number of subframes without data transmission" invalid TPC command words, i.e. four invalid TPC command words, and when responding to invalid TPC command words for multiple times (the invalid TPC command words are added to the transmission power of the UP-regulation system, i.e. UP), the transmission power will rise continuously, which causes greater interference to the network system, deteriorates KPI indicators and user perception. The manner of responding to the TPC command word sent by the receiving end 1 by the transmitting end in the sub-frame N +10 to the sub-frame N +15 is similar to the manner of responding to the TPC command word sent by the receiving end 1 by the transmitting end in the sub-frame N +02 to the sub-frame N + 07; the manner in which the transmitting end responds to the TPC command word sent by the receiving end 1 in the sub-frame N +00 and the sub-frame N +01 is similar to the manner in which the transmitting end responds to the TPC command word sent by the receiving end 1 in the sub-frame N +08 and the sub-frame N +09, and is not described herein again.

Corresponding to scenario 1 shown in fig. 1, in scenario 4, the receiving end 2 generates corresponding TPC command words according to the data receiving conditions in the sub-frames N +00 to N +15, and correspondingly, in scenario 4, after receiving the TPC command words sent by the receiving end 2, the sending end adopts a response mode as follows:

the TPC command word responded by the transmitting end in the subframe N +03 is the TPC command word TPC00 generated by the receiving end 2 in the subframe N + 02; a TPC command word TPC2 responded by a sending terminal in a subframe N +08 is a TPC command word generated by the receiving terminal 2 after accumulation of a TPC command word TPC01, a TPC02 and a TPC03 generated in a subframe N +03, a subframe N +04, a subframe N +05, a subframe N +06 and a subframe N +07, and two invalid TPC command words (the invalid TPC command word is assumed to be UP); the TPC command words responded by the transmitting end in the sub-frame N +09 and the sub-frame N +10 are invalid TPC command words generated by the receiving end 2 in the sub-frame N +08 and the sub-frame N + 09. Generally, a sending end responds to each TPC command word successively, this scenario will respond to "number of subframes without data transmission" invalid TPC command words, i.e. four invalid TPC command words, and when responding to invalid TPC command words for multiple times (the invalid TPC command words are added to the transmission power of the UP-regulation system, i.e. UP), the transmission power will rise continuously, which causes greater interference to the network system, deteriorates KPI indicators and user perception. The manner of the sending end responding to the TPC command words sent by the receiving end 2 in the sub-frame N +11 to the sub-frame N +15 is similar to the manner of the sending end responding to the TPC command words sent by the receiving end 2 in the sub-frame N +03 to the sub-frame N + 07; the manner in which the transmitting end responds to the TPC command word transmitted by the receiving end 2 in the sub-frame N +00 to the sub-frame N +03 is similar to the manner in which the transmitting end responds to the TPC command word transmitted by the receiving end 2 in the sub-frame N +08 to the sub-frame N +10, and is not described herein again.

Referring to scenario 5 shown in fig. 5, where x represents an invalid TPC command word and UP represents an UP-regulation of the system's transmit power.

Corresponding to scenario 2 shown in fig. 2, in scenario 5, the receiving end 1 generates corresponding TPC command words according to the data receiving conditions in the sub-frames N +00 to N +15, and accordingly, in scenario 5, after receiving the TPC command words sent by the receiving end 1, the sending end adopts a response manner as follows:

the TPC command words responded by the transmitting end in the sub-frame N +02, the sub-frame N +03, the sub-frame N +08 and the sub-frame N +09 are the command words TPC00, TPC01, TPC02 and TPC03 generated by the receiving end 1 in the sub-frame N +01, the sub-frame N +02, the sub-frame N +03 and the sub-frame N + 08. The sending end responds to the last TPC command word in other TPC command words fed back by the receiving end 1 in the previous sending end no-data sending stage on the first subframe of starting sending data each time. Therefore, the TPC command word responded by the transmitting end in the subframe N +08 is the command word TPC02 generated by the receiving end 1 in the subframe N + 03. The manner of responding to the TPC command word sent by the receiving end 1 by the transmitting end in the sub-frame N +10 to the sub-frame N +15 is similar to the manner of responding to the TPC command word sent by the receiving end 1 by the transmitting end in the sub-frame N +02 to the sub-frame N + 07; the manner in which the transmitting end responds to the TPC command word sent by the receiving end 1 in the sub-frame N +00 and the sub-frame N +01 is similar to the manner in which the transmitting end responds to the TPC command word sent by the receiving end 1 in the sub-frame N +08 and the sub-frame N +09, and is not described herein again.

Corresponding to scenario 2 shown in fig. 2, in scenario 5, the receiving end 2 generates corresponding TPC command words according to the data receiving conditions in the sub-frames N +00 to N +15, and accordingly, in scenario 5, after receiving the TPC command words sent by the receiving end 2, the sending end adopts a response mode as follows:

the TPC command word responded by the transmitting end in the sub-frame N +03, the sub-frame N +08, the sub-frame N +09, and the sub-frame N +10 is a command word TPC00, TPC01, TPC03 and an invalid TPC command word generated by the receiving end 2 in the sub-frame N +02, the sub-frame N +03, the sub-frame N +08, and the sub-frame N + 09. The sending end responds to the last TPC command word in other TPC command words fed back by the receiving end 2 in the previous sending end no-data sending stage on the first subframe of starting sending data each time. Therefore, the TPC command word responded by the transmitting end in the subframe N +08 is the command word TPC01 generated by the receiving end 2 in the subframe N + 03. Generally, the transmitting end responds to each TPC command word one by one, and this scenario will respond to one more invalid TPC command word, resulting in an increase in transmission power. The manner of the sending end responding to the TPC command words sent by the receiving end 2 in the sub-frame N +11 to the sub-frame N +15 is similar to the manner of the sending end responding to the TPC command words sent by the receiving end 2 in the sub-frame N +03 to the sub-frame N + 07; the manner in which the transmitting end responds to the TPC command word transmitted by the receiving end 2 in the sub-frame N +00 to the sub-frame N +02 is similar to the manner in which the transmitting end responds to the TPC command word transmitted by the receiving end 2 in the sub-frame N +08 to the sub-frame N +10, and is not described herein again.

Referring to scenario 6 shown in fig. 6, where x represents an invalid TPC command word and UP represents an UP-regulation of the system's transmit power.

In scenario 3 corresponding to fig. 3, in scenario 6, the receiving end 1 generates corresponding TPC command words according to the data acceptance conditions in the subframes N +00 to N +15, and correspondingly, in scenario 6, after receiving the TPC command words sent by the receiving end 1, the sending end adopts the following response mode:

when a sending terminal sends data in a subframe N +00, a subframe N +01, a subframe N +02 and a subframe N +03, the sending terminal does not allocate resources in the subframe N +00, the subframe N +01, the subframe N +02 and the subframe N +03 to bear TPC command words generated by the receiving terminal 1, so that the sending terminal does not respond to the TPC command words in the subframe N +01, the subframe N +02 and the subframe N + 03; the TPC command word TPC1 responded by the sender at subframe N +08 is the TPC command word generated by the receiver 1 after accumulating the TPC command word TPC03 generated at subframe N +04, subframe N +05, subframe N +06, subframe N +07, and three invalid TPC command words (here, it is assumed that the invalid TPC command word is UP). Generally, a sending end responds to each TPC command word successively, this scenario will respond to three invalid TPC command words, and when responding to invalid TPC command words for multiple times (the invalid TPC command words are added as the sending power of an UP-regulation system, that is, UP), the sending power will rise continuously, which will generate greater interference to a network system, deteriorate KPI indexes and user perception. The manner in which the transmitting end responds to the TPC command word transmitted by the receiving end 1 in the sub-frame N +09 to the sub-frame N +15 is similar to the manner in which the transmitting end responds to the TPC command word transmitted by the receiving end 1 in the sub-frame N +01 to the sub-frame N +07, and is not described herein again.

In scenario 3 shown in fig. 3, in scenario 6, the receiving end 2 generates corresponding TPC command words according to the data acceptance conditions in subframes N +00 to N +15, and correspondingly, in scenario 6, after receiving the TPC command words sent by the receiving end 2, the sending end adopts the following response mode:

when a sending terminal sends data in a subframe N +00, a subframe N +01, a subframe N +02 and a subframe N +03, the sending terminal does not allocate resources in the subframe N +00, the subframe N +01, the subframe N +02 and the subframe N +03 to bear TPC command words generated by a receiving terminal 2, so that the sending terminal does not respond to the TPC command words in the subframe N +01, the subframe N +02 and the subframe N + 03; the TPC command word TPC2 responded by the sender at subframe N +08 is the TPC command word generated by the receiver 2 after accumulating the TPC02, TPC03 generated at subframe N +04, subframe N +05, subframe N +06, subframe N +07, and two invalid TPC command words (here, it is assumed that the invalid TPC command word is UP). Generally, a sending end responds to each TPC command word successively, this scenario will respond to two invalid TPC command words, and when responding to an invalid TPC command word for multiple times (the invalid TPC command word is added as the sending power of the UP-regulation system, that is, UP), the sending power will rise continuously, which will generate greater interference to the network system, deteriorate KPI index and user perception. The manner in which the transmitting end responds to the TPC command word sent by the receiving end 2 in the sub-frame N +10 to the sub-frame N +15 is similar to the manner in which the transmitting end responds to the TPC command word sent by the receiving end 2 in the sub-frame N +02 to the sub-frame N +07, and is not described herein again.

Therefore, if invalid TPC command words transmitted in the system are all added to the transmission power of the up-regulation system, the transmission power of the sending terminal can be obviously improved after the sending terminal responds to the invalid TPC command words for multiple times, if the sending terminal is a base station, the sending terminal can generate strong interference to other base stations after the sending power is improved for multiple times, and if the sending power of the multiple base stations is improved simultaneously, the whole system can become a strong interference system, so that the use of a user is influenced.

On the other hand, if the invalid TPC command words transmitted in the system are all added to the transmission power of the down-regulated system, the transmission power of the transmitter itself will be too low after the transmitter responds to the invalid TPC command words for many times, thereby affecting the data transmission effect and further reducing the system gain; if the invalid TPC command word transmitted in the system is added alternately to the transmission power of the up-regulation system and the transmission power of the down-regulation system, the transmission power of the transmitting end may fluctuate, which affects data transmission and wastes system resources.

In summary, in the prior art, if the sender excessively responds to the invalid TPC command word, the working performance of the sender is reduced, and the overall performance of the system is affected.

Disclosure of Invention

The embodiment of the invention provides a processing method and a processing device of TPC command words, which are used for guaranteeing the working performance of a sending end and further guaranteeing the overall performance of a system.

The embodiment of the invention provides the following specific technical scheme:

in a first aspect, a method for processing a TPC command word includes:

the sending end discontinuously sends data to the receiving end and receives TPC command words returned by the receiving end;

the method comprises the steps that a sending end does not respond to TPC command words sent by a receiving end on continuous L +1 subframes after an Mth subframe from an initial time of no data sending, and the sending end responds to other TPC command words sent by the receiving end, wherein M is feedback time delay of the receiving end to the TPC command words, and L is the number of the subframes of the sending end relative to the receiving end, wherein the subframes are sent without data.

By the processing method, the link performance can be ensured, the phenomena of overhigh, overlow or fluctuation of the sending power can be avoided to the greatest extent, the working performance of the sending end is effectively ensured, and the overall performance of the system is ensured.

With reference to the first aspect, in a first possible implementation manner, a method for discontinuously transmitting data by a transmitting end to a receiving end includes:

the transmitting end is a network side device, the receiving end is a terminal side device, and the developed end discontinuously transmits downlink data to the receiving end; or,

the sending end is a terminal side device, the receiving end is a network side device, and the sending end discontinuously sends uplink data to the receiving end.

Through the possible implementation mode, the method can be suitable for processing the TPC command words generated by the sending end aiming at the receiving end when the sending end has no data to send under various scenes.

With reference to the first aspect, in a second possible implementation manner, where M is a feedback delay of a receiving end for a TPC command word, the method includes: m comprises one subframe.

With reference to the first aspect, in a third possible implementation manner, where L is the number of subframes in which the transmitting end has no data transmission relative to the receiving end, the method includes: l includes four subframes.

With reference to any one of the foregoing implementation manners of the first aspect, in a fourth possible implementation manner, a method for a sender to respond to another TPC command word sent by a receiver includes:

and the sending end carries out accumulated response on the other TPC command words fed back by the receiving end in the previous sending end non-data sending stage on the first subframe starting to send data each time, or the receiving end carries out response on the last TPC command word in the other TPC command words fed back by the receiving end in the previous sending end non-data sending stage.

In a second aspect, a transmitting end apparatus includes:

the communication unit is used for discontinuously transmitting data to the receiving terminal and receiving TPC command words returned by the receiving terminal;

and the processing unit is used for not responding to the TPC command words sent by the receiving end on continuous L +1 subframes after the Mth subframe from the initial time of no data transmission and responding to other TPC command words sent by the receiving end, wherein M is the feedback time delay of the receiving end aiming at the TPC command words, and L is the number of subframes of the sending end relative to the receiving end without data transmission.

By the processing method, the phenomenon that the sending power of the communication unit is too high, too low or fluctuated can be avoided to the greatest extent, so that the working performance of the communication unit is effectively guaranteed, and the overall performance of the system is guaranteed.

With reference to the second aspect, in a first possible implementation manner, a method for a communication unit to discontinuously transmit data to a receiving end includes:

the device is a network side device, the receiving end is a terminal side device, and the communication unit discontinuously transmits downlink data to the receiving end; or,

the device is a terminal side device, the receiving end is a network side device, and the communication unit discontinuously transmits uplink data to the receiving end.

Through the possible implementation mode, the device can be suitable for processing the TPC command word generated by the communication unit aiming at the receiving end when the communication unit has no data to transmit under various scenes

With reference to the second aspect, in a second possible implementation manner, M used by the communication unit includes one subframe.

With reference to the second aspect, in a third possible implementation manner, L adopted by the communication unit includes four subframes.

With reference to any one of the foregoing implementation manners of the second aspect, in a fourth possible implementation manner, the responding, by the processing unit, to another TPC command word sent by the receiving end includes:

the processing unit performs cumulative response to the other TPC command words fed back by the receiving end at the previous sending end non-data sending stage, or responds to the last TPC command word in the other TPC command words fed back by the receiving end at the previous sending end non-data sending stage, on the first subframe where data sending is started each time.

Drawings

Fig. 1 is a schematic diagram of a scenario 1 in which a receiving end generates a TPC command word in the prior art;

fig. 2 is a schematic diagram of a scenario 2 in which a receiving end generates a TPC command word in the prior art;

fig. 3 is a schematic diagram of a scenario 3 in which a receiving end generates a TPC command word in the prior art;

fig. 4 is a schematic diagram of a scenario 4 in which a transmitting end responds to a TPC command word in the prior art;

fig. 5 is a schematic diagram of a scenario 5 in which a transmitting end responds to a TPC command word in the prior art;

fig. 6 is a schematic diagram of a scenario 6 in which a transmitting end responds to a TPC command word in the prior art;

FIG. 7 is a flow chart of processing a TPC command word in an embodiment of the present invention;

fig. 8 is a schematic diagram of a scenario 7 in which a sender responds to a TPC command word in an embodiment of the present invention;

fig. 9 is a schematic diagram of a scenario 8 in which a transmitting end responds to a TPC command word in the embodiment of the present invention;

fig. 10 is a schematic diagram of a scenario 9 in which a sender responds to a TPC command word in an embodiment of the present invention;

fig. 11 is a schematic diagram of a transmitting end in an embodiment of the present invention.

Detailed Description

In order to ensure the working performance of the sending end and further ensure the overall performance of the system, in this embodiment, the sending end does not adopt a mode of responding to the TPC command words sent by each receiving end one by one.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 7, in the embodiment of the present invention, the flow of the sending end processing the TPC command word is as follows:

step 700: the sending end discontinuously sends data to the receiving end and receives TPC command words returned by the receiving end.

In the embodiment of the invention, the sending end can be a network side device, the receiving end can be a terminal side device, and the developed end discontinuously sends downlink data to the receiving end; or,

the transmitting end may be a terminal side device, the receiving end may be a network side device, and the uplink data is discontinuously transmitted from the transmitting end to the receiving end.

In the following embodiments, only the example of sending downlink data from the sending end to the receiving end is described.

Step 710: in the execution process of step 700, the transmitting end does not respond to the TPC command words sent by the receiving end in L +1 consecutive subframes after the mth subframe from the initial time of the data-free transmission, and the transmitting end responds to other TPC command words sent by the receiving end, where M is the feedback delay of the receiving end for the TPC command words, and L is the number of subframes in which the transmitting end has no data transmission relative to the receiving end. Preferably, M includes one subframe, i.e., M may have a value of 1.

When the sender responds to other TPC command words sent by the receiver, in addition to responding according to an agreed time delay (e.g., delaying one subframe), in the first subframe where data transmission is started each time, the receiver needs to perform cumulative response on the other TPC command words fed back by the sender at the previous stage of no data transmission, which will be described in the following embodiments.

The following description will still take the downlink data transmission as an example to describe the specific implementation of the above embodiment in detail. The invalid TPC command words transmitted in the system may be added to the transmission power of the up-regulation system, to the transmission power of the down-regulation system, or to the transmission power of the up-regulation system and the transmission power of the down-regulation system alternately. In the following embodiments, only invalid TPC command words are added to the transmission power of the up-regulation system as an example.

In the corresponding scenario 4, when the sending end does not send data continuously, the receiving end 1 generates a TPC command word, and then the sending end responds to the process of the TPC command word sent by the receiving end 1. Referring to scenario 7 shown in fig. 8 (where x represents an invalid TPC command word, and invariably represents maintaining the original transmission power), after receiving the TPC command word sent by the receiving end 1, the sending end processes the TPC command word in the following manner:

the end time of the subframe N +03 is the start time of the non-data transmission, and in the scenario shown in fig. 8, M is 1 and L =4, so the subframe N +04 is the mth subframe after the start time of the non-data transmission.

Accordingly, the transmitting end does not respond to the TPC command words transmitted by the receiving end 1 over 5 (i.e., L + 1) consecutive subframes (i.e., subframe N +05 to subframe N + 09) after subframe N + 04. Specifically, the method comprises the following steps: the transmitting end does not respond to the invalid TPC command words transmitted by the receiving end 1 in the sub-frame N +05 to the sub-frame N +08, and does not respond to the TPC08 transmitted by the receiving end 1 in the sub-frame N +09, and therefore, the transmitting end does not adjust the transmission power in the sub-frame N +09 and the sub-frame N + 10.

Meanwhile, the transmitting end responds to other TPC command words transmitted by the receiving end 1. Specifically, the method comprises the following steps: the transmitting end responds to the TPC01 sent by the receiving end 1 on the subframe N +02 on the subframe N +03, and responds to the TPC02 sent by the receiving end 1 on the subframe N +03 and the TPC03 sent on the subframe N +04 in an accumulated manner through the TPC1 on the subframe N + 08. It can be seen that since the transmitting end has no processing for four invalid TPC command words, it is avoided to raise the transmit power of the system (assuming that all invalid TPC command words transmitted in the system are added UP).

The specific processing from sub-frame N +10 to sub-frame N + 17 is the same as the processing from sub-frame N +02 to sub-frame N +09, and will not be described herein again.

In the corresponding scenario 4, when the sending end does not send data continuously, the receiving end 2 generates a TPC command word, and then the sending end responds to the process of the TPC command word sent by the receiving end 2. Referring to scenario 7 shown in fig. 8 (where x represents an invalid TPC command word, and invariably represents maintaining the original transmission power), after receiving the TPC command word sent by the receiving end 2, the sending end processes the TPC command word in the following manner:

Accordingly, the transmitting end does not respond to the TPC command words transmitted by the receiving end 2 over 5 (i.e., L + 1) consecutive subframes (i.e., subframe N +05 to subframe N + 09) after subframe N + 04. Specifically, the method comprises the following steps: the transmitting end does not respond to the TPC command word TPC03 transmitted by the receiving end 2 in the subframe N +05 and does not respond to the invalid TPC command words transmitted by the receiving end 2 in the subframes N +06 to N +09, and thus the transmitting end does not adjust the transmission power in the subframe N +09 and the subframe N + 10.

Meanwhile, the transmitting end responds to other TPC command words transmitted by the receiving end 2. Specifically, the method comprises the following steps: the transmitting end responds to the TPC00 sent by the receiving end 2 in the subframe N +02 in the subframe N +03, responds to the TPC01 sent by the receiving end 2 in the subframe N +03 in the subframe N +08 through the accumulation of the TPC2, and responds to the TPC02 sent in the subframe N + 04. It can be seen that since the transmitting end has no processing for four invalid TPC command words, it is avoided to raise the transmit power of the system (assuming that all invalid TPC command words transmitted in the system are added UP).

In the corresponding scenario 5, when the sending end does not send data continuously, the receiving end 1 generates a TPC command word, and then the sending end responds to the process of the TPC command word sent by the receiving end 1. Referring to scenario 8 shown in fig. 9 (where x represents an invalid TPC command word, and invariably represents maintaining the original transmission power), after receiving the TPC command word sent by the receiving end 1, the sending end processes the TPC command word in the following manner:

in the scenario shown in fig. 9, a subframe in which the transmitter does not allocate resources carrying TPC command words to the receiver 1 and a subframe in which the transmitter does not transmit downlink data are temporally aligned, so that the data transmission mode of the transmitter corresponds to continuous transmission with respect to the receiver 1, and thus M is 1, L =0, and the subframe N +08 is the mth subframe after the start time of the data-free transmission.

Accordingly, the transmitting end does not respond to the TPC command word transmitted by the receiving end 1 over 1 (i.e., L + 1) consecutive subframes (i.e., subframe N + 09) after subframe N + 08. Specifically, the method comprises the following steps: the transmitting end does not respond to the TPC command word TPC08 transmitted by the receiving end 1 in the subframe N +09, and therefore, the transmitting end does not adjust the transmission power in the subframe N + 10.

Meanwhile, the transmitting end responds to other TPC command words transmitted by the receiving end 1. Specifically, the method comprises the following steps: the transmitter responds to the TPC03 transmitted by the receiver 1 in the subframe N +08, and responds to the TPCs 01 and 02 transmitted by the receiver 1 in the subframes N +02 and N + 03. The sending end responds to the last TPC command word in other TPC command words fed back by the receiving end 1 in the previous sending end no-data sending stage on the first subframe of starting sending data each time. Therefore, the TPC command word responded by the transmitting end in the subframe N +08 is the command word TPC02 generated by the receiving end 1 in the subframe N + 03. It can be seen that the sender responds to only one TPC command word sent by the receiver 1.

In the corresponding scenario 5, when the sender does not send data continuously, the receiver 2 generates a TPC command word, and then the sender responds to the TPC command word sent by the receiver 2. Referring to scenario 8 shown in fig. 9 (where x represents an invalid TPC command word, and invariably represents maintaining the original transmission power), after receiving the TPC command word sent by the receiving end 2, the sending end processes the TPC command word in the following manner:

in the scenario shown in fig. 9, the subframe in which the transmitter does not allocate resources carrying TPC command words to the receiver 2 is temporally aligned with the subframe in which the transmitter does not transmit downlink data, so that the data transmission mode of the transmitter corresponds to continuous transmission with respect to the receiver 2, and thus M is 1, L =0, and the subframe N +08 is the mth subframe after the start time of the data-free transmission.

Accordingly, the transmitting end does not respond to the TPC command word transmitted by the receiving end 2 over 1 (i.e., L + 1) consecutive subframes (i.e., subframe N + 09) after subframe N + 08. Specifically, the method comprises the following steps: the transmitting end does not respond to the invalid TPC command word transmitted by the receiving end 2 in the subframe N +09, and therefore, the transmitting end does not adjust the transmission power in the subframe N + 10.

Meanwhile, the transmitting end responds to other TPC command words transmitted by the receiving end 2. Specifically, the method comprises the following steps: the transmitter responds to the TPC command word TPC03 transmitted by the receiver 2 in the subframe N +08 and to the TPC command words TPC00 and TPC01 transmitted by the receiver 2 in the subframe N +02 and the subframe N +03 before the subframe N + 08. The sending end responds to the last TPC command word in other TPC command words fed back by the receiving end 2 in the previous sending end no-data sending stage on the first subframe of starting sending data each time. Therefore, the TPC command word responded by the transmitting end in the subframe N +08 is the command word TPC01 generated by the receiving end 2 in the subframe N + 03. It can be seen that since the transmitter side does not process the invalid TPC command words, it is avoided to raise the transmit power of the system (assuming that all the invalid TPC command words transmitted in the system are added UP).

In the corresponding scenario 6, when the sending end does not send data continuously, the receiving end 1 generates a TPC command word, and then the sending end responds to the process of the TPC command word sent by the receiving end 1. Referring to scenario 9 shown in fig. 10 (where x represents an invalid TPC command word, and invariably represents maintaining the original transmission power), after receiving the TPC command word sent by the receiving end 1, the sending end processes the TPC command word in the following manner:

the end time of the subframe N +03 is the start time of the non-data transmission, and in the scenario shown in fig. 10, M is 1 and L =4, so the subframe N +04 is the mth subframe after the start time of the non-data transmission.

Accordingly, the transmitting end does not respond to the TPC command words transmitted by the receiving end 1 over 5 (i.e., L + 1) consecutive subframes (i.e., subframe N +05 to subframe N + 09) after subframe N + 04. Specifically, the method comprises the following steps: the transmitting end does not respond to invalid TPC command words sent by the receiving end 1 in the sub-frame N +05 to the sub-frame N +07, and the transmitting end does not respond to the sub-frame N +08 and the sub-frame N +09 because the transmitting end does not allocate resources for carrying the TPC command words in the sub-frame N +08 and the sub-frame N + 09.

Meanwhile, the transmitting end responds to other TPC command words transmitted by the receiving end 1. Specifically, the method comprises the following steps: the transmitting end does not allocate resources in the sub-frame N +00, the sub-frame N +01, the sub-frame N +02 and the sub-frame N +03 to bear the TPC command words generated by the receiving end 1, so that the transmitting end does not respond to the TPC command words in the sub-frame N +01, the sub-frame N +02 and the sub-frame N +03, and the transmitting end does not adjust the transmitting power in the sub-frame N +01, the sub-frame N +02 and the sub-frame N + 03; when the sending end sends data in the subframe N +03 and the sending end distributes resources in the subframe N +04 to bear the TPC command word generated by the receiving end 1, the receiving end 1 already generates TPC03 aiming at the data sent by the sending end in the subframe N +03, so that the receiving end 1 sends the TPC command word in the subframe N +03 as TPC03 according to the principle of sending the latest command word; therefore, the transmitter responds in subframe N +08 only to the TPC03 sent by the receiver 1 in subframe N + 04. It can be seen that since the transmitting end has no processing for three invalid TPC command words, it is avoided to raise the transmit power of the system (assuming that all invalid TPC command words transmitted in the system are added UP).

The specific processing from sub-frame N +09 to sub-frame N +16 is the same as the processing from sub-frame N +01 to sub-frame N +08, and will not be described herein again.

In the corresponding scenario 6, when the sender does not send data continuously, the receiver 2 generates a TPC command word, and then the sender responds to the TPC command word sent by the receiver 2. Referring to scenario 9 shown in fig. 10 (where x represents an invalid TPC command word, and invariably represents maintaining the original transmission power), after receiving the TPC command word sent by the receiving end 2, the sending end processes the TPC command word in the following manner:

Accordingly, the transmitting end does not respond to the TPC command words transmitted by the receiving end 2 over 5 (i.e., L + 1) consecutive subframes (i.e., subframe N +05 to subframe N + 09) after subframe N + 04. Specifically, the method comprises the following steps: the transmitting end does not respond to the TPC03 sent by the receiving end 2 in the subframe N +05, does not respond to the invalid TPC command words sent by the receiving end 2 in the subframes N +06 and N +07, and does not allocate resources to bear the command words generated by the receiving end 2 in the subframe N +08 and the subframe N +09, so the transmitting end does not respond to the TPC command words sent by the receiving end 2 in the subframe N +08 and the subframe N + 09.

Meanwhile, the transmitting end responds to other TPC command words transmitted by the receiving end 2. Specifically, the method comprises the following steps: when the transmitting end transmits data in the subframe N +00, the subframe N +01, the subframe N +02 and the subframe N +03, the transmitting end does not allocate resources in the subframe N +00, the subframe N +01, the subframe N +02 and the subframe N +03 to bear the TPC command words generated by the receiving end 2, so that the transmitting end does not respond to the TPC command words in the subframe N +01, the subframe N +02 and the subframe N +03, and the transmitting end does not adjust the transmission power in the subframe N +01, the subframe N +02 and the subframe N + 03. The sender responds to the TPC command word TPC02 sent by the receiver 2 in subframe N + 04. Therefore, the transmitting end responds only to the TPC command word TPC02 sent by the receiving end 2 at N +04 at the subframe N + 08. It can be seen that since the transmitting end has not processed both invalid TPC command words, it is avoided to increase the transmission power of the system twice in succession (assuming that the invalid TPC command words transmitted in the system are both added UP).

Of course, the above embodiment only uses the sending end as the network side and the receiving end as the terminal side, and the sending end does not connect to send downlink data to the receiving end for description, and correspondingly, if the sending end is the terminal side and the receiving end is the network side, when the sending end does not send uplink data to the terminal side continuously, the method provided by the embodiment of the present invention may also be adopted to process the TPC command word, and details are not repeated here.

Referring to fig. 11, in the embodiment of the present invention, the transmitting end includes a communication unit 110 and a processing unit 111, wherein,

a communication unit 110, configured to discontinuously send data to a receiving end, and receive a TPC command word returned by the receiving end;

the processing unit 111 is configured to not respond to the TPC command word sent by the receiving end in L +1 consecutive subframes after the mth subframe from the initial time of the non-data transmission, and respond to other TPC command words sent by the receiving end, where M is a feedback delay of the receiving end for the TPC command word, and L is the number of subframes in which the transmitting end transmits no data to the receiving end.

M employed by the communication unit 110 includes one subframe.

L employed by the communication unit 110 includes four subframes.

The processing unit 111 responds to other TPC command words sent by the receiving end, including:

the processing unit 111 performs cumulative response to other TPC command words fed back by the receiving end at the previous sending end non-data sending stage, or responds to the last TPC command word in other TPC command words fed back by the receiving end at the previous sending end non-data sending stage, in the first subframe where data sending is started each time.

Therefore, by the processing method for the TPC command word provided in the embodiment of the present invention, no matter the time delay of the receiving end generating the TPC command word is one subframe or two subframes, the transmitting end can not respond to the invalid TPC command word any more, and at the same time, can respond to as many valid command words as possible (i.e. the TPC command word generated by the receiving end when the transmitting end transmits data), effectively control the transmission power of the system, raise the KPI index, and be compatible with different time delays of the receiving end generating the TPC command word and different filling manners of the receiving end for the TPC invalid command word, so as to ensure the link performance (e.g. respond to the command words as much as possible), and avoid the phenomena of too high, too low or fluctuation of the transmission power (e.g. not responding to the command word of the invalid TPC command word), thereby effectively ensuring the working performance of the transmitting end, and the overall performance of the system is guaranteed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A method of processing TPC command words, comprising:

the method comprises the following steps that a sending end does not respond to TPC command words sent by a receiving end on continuous L +1 subframes after an Mth subframe which starts at the initial moment of non-data sending, and the sending end responds to other TPC command words sent by the receiving end, wherein M is feedback time delay of the receiving end to the TPC command words, L is the number of subframes which are sent by the sending end relative to the receiving end without data, and the sending end responds to other TPC command words sent by the receiving end, and comprises the following steps: and the sending end carries out accumulated response on the other TPC command words fed back by the receiving end in the previous sending end non-data sending stage on the first subframe starting to send data each time, or the receiving end carries out response on the last TPC command word in the other TPC command words fed back by the receiving end in the previous sending end non-data sending stage.

2. The method of claim 1, wherein the discontinuous transmission of data from the transmitting end to the receiving end comprises:

3. The method of claim 1, wherein the M comprises one subframe.

4. The method of claim 1, wherein the L comprises four subframes.

5. A transmitting end apparatus, comprising:

a processing unit, configured to not respond to a TPC command word sent by a receiving end in L +1 consecutive subframes after an mth subframe from an initial time of no data transmission, and respond to other TPC command words sent by the receiving end, where M is a feedback delay of the receiving end for the TPC command word, and L is a number of subframes in which the sending end has no data transmission relative to the receiving end, where the processing unit responds to other TPC command words sent by the receiving end, and includes: the processing unit performs cumulative response to the other TPC command words fed back by the receiving end at the previous sending end non-data sending stage, or responds to the last TPC command word in the other TPC command words fed back by the receiving end at the previous sending end non-data sending stage, on the first subframe where data sending is started each time.

6. The apparatus as claimed in claim 5, wherein said communication unit discontinuously transmits data to a receiving end, comprising:

7. The apparatus of claim 5, wherein M employed by the communication unit comprises one subframe.

8. The apparatus of claim 5, wherein L employed by the communication unit comprises four subframes.