RU2794467C1 - Method and apparatus for uplink data transmission at full power - Google Patents

Abstract

FIELD: communications.

SUBSTANCE: method and apparatus for uplink data transmission at full power is provided. The method is applied to a terminal and includes uplink data transmission at an uplink power obtained by scaling with a power scaling factor that is determined based on a power control factor, the power control factor including at least one of the following criteria: the possibility of uplink data transmission by the end device at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

EFFECT: increasing the power of the uplink and increasing the coverage of the uplink.

16 cl, 7 dwg

Description

[0001] This application claims priority on the basis of Chinese patent application No. 201910727566.7 filed with the National Intellectual Property Office of China on August 7, 2019 under the title "METHOD AND DEVICE FOR UPLOAD DATA TRANSMISSION AT FULL POWER" and incorporated herein by reference throughout its completeness.

FIELD OF TECHNOLOGY

[0002] This invention relates to wireless telecommunication technologies, and in particular to a method and device for uplink data transmission at full power.

BACKGROUND OF THE INVENTION

[0003] In the NR (New Radio, new radio) version 15 standard, the Physical Uplink Shared Channel (PUSCH) supports codebook-based data transmission and non-codebook data transmission, which places higher demands on implementing PUSCH power control. When transmitting data based on a codebook, the user terminal (User Equipment, UE) selects a codebook for precoding at the direction of the network side, and when transmitting data without a codebook, the UE can dynamically determine the codebook for precoding, taking into account information about the channel state ( Channel State Information, CSI).

[0004] When transmitting codebook-based PUSCH data, if more than 1 Sounding Reference Signal (SRS) antenna port is configured on the network side for codebook-based data transmission, the PUSCH power may be scaled based on the ratio the number of non-null PUSCH antenna ports to the maximum number of SRS antenna ports supported by one SRS UE resource, and then distributed equally among the non-null PUSCH antenna ports. When transmitting data on a non-codebook PUSCH or transmitting data on a codebook-based PUSCH where the number of SRS antenna ports used for codebook-based data transmission is 1, the PUSCH power may be distributed equally among the non-zero channel antenna ports. PUSCH.

то UE не может выполнять передачу данных на полной мощности, что ограничивает возможности и охват восходящей линии связи.[0005] This PUSCH power scaling approach for codebook-based data transmission can result in partial power uplink transmission. For example, if the network side instructs the UE to use the Transmission Precoding Matrix Indicator (TPMI) to transmit data

then the UE cannot transmit data at full power, which limits uplink capability and coverage.

SUMMARY OF THE INVENTION

[0006] Embodiments of the present invention provide a method and apparatus for full power uplink data transmission to solve the problem of not supporting full power uplink data transmission for a UE in the prior art.

[0007] Embodiments of the present invention solve the above technical problem as follows:

[0008] The first embodiment of the present invention provides a full power uplink data transmission method. The method is applied to a terminal and includes uplink data transmission at an uplink power obtained by scaling with a power scaling factor that is determined based on a power control factor, the power control factor including at least one of the following criteria: the possibility of uplink data transmission by the end device at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[0009] The second embodiment of the present invention further provides a full power uplink data transmission method. The method is applied to a network device and includes receiving data from a terminal in an uplink, where the uplink is performed by the terminal at an uplink power obtained by scaling with a power scaling factor that is determined based on a power control factor, wherein the power control factor includes at least one of the following criteria: the ability of the terminal to transmit data upstream at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[0010] A third embodiment of the present invention further provides a terminal device. The terminal device includes a transmitter module configured for uplink data transmission at an uplink power obtained by scaling with a power scaling factor that is determined based on a power control factor, wherein the power control factor includes at least one of the following criteria : the possibility of uplink data transmission by the end device at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[0011] The fourth embodiment of the present invention further provides a network device. The network device includes a receiving module configured to receive uplink data from the terminal, where the uplink is performed by the terminal at an uplink power obtained by scaling with a power scaling factor that is determined based on a power control factor, wherein the power control factor includes at least one of the following criteria: the ability of the terminal to transmit data upstream at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[0012] The fifth embodiment of the present invention further provides a terminal including a memory storing computer program instructions and a processor that executes the computer program instructions and thereby implements the full power uplink data transmission method according to the first embodiment.

[0013] The sixth embodiment of the present invention further provides a network device including a memory storing computer program instructions and a processor that executes the computer program instructions and thereby implements the full power uplink data transmission method according to the second embodiment.

[0014] The seventh embodiment of the present invention further provides a computer-readable storage medium where program instructions are stored that, during their execution on the processor, implement the full power uplink data transmission method in accordance with the first or second embodiments of the present invention.

[0015] In accordance with embodiments of the present invention, uplink data transmission may be performed on an uplink data power obtained by scaling with a power scaling factor, as well as based on a plurality of power control factors (including at least one of the following criteria: the possibility of uplink full power transmission of data by the terminal; supported TPMI transmission precoding matrix indicator reported by the terminal; TPMI reported by the network device; operating mode reported by the terminal; and the number of antenna ports for each SRS resource in the SRS Sounding Reference Resource Set, configured by the network device based on the operating mode) that can be shared for uplink power scaling. As a result, uplink power is increased, uplink coverage is increased, and full power uplink data transmission is realized for the terminal.

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For the sake of clarity in describing the technical solutions in the embodiments of the present invention and in the related art, the accompanying drawings are briefly listed below, corresponding to various embodiments of the present invention or the prior art. Obviously, the following accompanying drawings illustrate only some of the embodiments of the present invention, and experts in the art can develop other drawings based on the accompanying drawings without creative effort.

[0017] FIG. 1 is a generalized block diagram of a full power uplink data transmission method in accordance with one embodiment of the present invention;

[0018] FIG. 2 is a generalized flowchart of a full power uplink data transmission method in accordance with another embodiment of the present invention;

[0019] FIG. 3 is a schematic block diagram of a terminal device in accordance with one embodiment of the present invention;

[0020] FIG. 4 is a schematic block diagram of a network device in accordance with one embodiment of the present invention;

[0021] In FIG. 5 is a schematic block diagram of a network device in accordance with another embodiment of the present invention;

[0022] FIG. 6 is a schematic block diagram of a terminal device in accordance with another embodiment of the present invention;

[0023] FIG. 7 is a generalized flowchart of a full power uplink data transmission method in accordance with another embodiment of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS

[0024] The technical solutions used in the embodiments of the present invention are clearly and fully described below with reference to the corresponding accompanying drawings. It is obvious that the described embodiments are possible, but not exhaustive for this invention. All other embodiments of the present invention, obtained by those skilled in the art based on the embodiments described without creative effort, are included in the scope of legal protection for this invention.

[0025] The technical solutions in the embodiments of the present invention can be applied to various communication systems such as Global System of Mobile communication (GSM), Code Division Multiple Access (CDMA), broadband Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), or New Radio (NR).

[0026] User terminal device (User Equipment, UE) can also be a mobile terminal device (Mobile Terminal), terminal access device, subscriber device, subscriber station, mobile station, mobile console, remote station, remote terminal device, mobile device, user terminal, terminal, wireless device, user agent, user device, or the like. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication device, a computing device, another data processing device connected to a wireless modem, a vehicle on-board device, a wearable device, a terminal device in future generations of 5G networks, a terminal device in future generations of Public Land Mobile Networks (PLMN) or their analogues.

[0027] The network device may be a device for communicating with a mobile device. The network device can be a base station (Base Transceiver Station, BTS) in the Global System of Mobile communication (GSM) or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an eNB or evolved base station. station (Evolved Node B, eNodeB), access point, vehicle on-board device or wearable device in the LTE system, or network device in future generation 5G networks, or network device in evolved PLMN networks of future generations.

[0028] In FIG. 1 is a flow diagram of a full power uplink data transmission method in accordance with one embodiment of the present invention. The method shown in FIG. 1 applies to a terminal device and a network device, and may include the following steps.

[0029] Action S101. The terminal device performs uplink transmission at the uplink power obtained by scaling with a power scaling factor, which is determined based on the power control factor.

[0030] Action S102. The network device receives data from the terminal device in an uplink transmission, where the uplink transmission is performed by the terminal device at the uplink power obtained by scaling with a power scaling factor.

[0031] In this embodiment, the power control factor includes at least one of the following criteria: the ability of the terminal to transmit data upstream at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[0032] A terminal's full power uplink capability includes the following three UE capabilities:

UE first capability: all RF outputs of the terminal device support full power data transmission;

UE second possibility: none of the RF outputs of the terminal device support full power data transmission;

UE's third capability: a portion of the RF outputs of the terminal device support data transmission at full power.

[0033] Full power data transmission is data transmission at the maximum power supported by the terminal device.

[0034] If the terminal device supports the second UE capability or the third UE capability, then the terminal device supports the following two operating modes.

[0035] Operating mode 1. The number of antenna ports for each SRS resource in the SRS resource set configured by the network device is the same (i.e., the configuration used for the SRS resource set in codebook-based data transmission is in accordance with the version 15 standard), and the terminal the device realizes sending data at full power based on the TPMI reported by the network device.

[0036] Operation mode 2. The number of antenna ports for each SRS resource in the SRS resource set configured by the network device is different (that is, the configuration used for the SRS resource set in codebook-based data transmission does not conform to the version 15 standard), and the tag implements sending data at full power based on the number of antenna ports for the SRS resource, which is set by the network device.

[0037] In this embodiment of the present invention, uplink data transmission can be performed on the uplink power obtained by scaling with a power scaling factor, as well as based on a plurality of power control factors (including at least one of the following criteria: uplink transmission capability data by the terminal at full power, the supported TPMI transmit precoding matrix indicator reported by the terminal, the TPMI reported by the network device, the operating mode reported by the terminal, and the number of antenna ports for each SRS resource in the SRS sounding reference resource set that configured by the network device based on the operating mode), which can be shared for uplink power scaling. As a result, uplink power is increased, uplink coverage is increased, and full power uplink data transmission is realized for the terminal.

[0038] In this embodiment, the value of the power scaling factor depends on the power control factor. Next, the procedure for determining the power scaling factor based on the power control factor is described in detail.

[0039] Embodiment 1

[0040] Let the uplink power before scaling calculated based on the link power control factor is P, the uplink power scaling factor is α, and the number of non-zero uplink antenna ports is β. A non-zero uplink antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero.

[0041] If the terminal device supports the first UE capability (eg, all RF outputs of the terminal device support data transmission at full power), then the power scaling factor can be set to 1, i.e. α=1.

[0042] After determining the power scaling factor α=1, the terminal device first scales the uplink power P based on the power scaling factor α, and then evenly distributes the received power among the non-zero uplink antenna ports to obtain the uplink power (actual transmission power) P' of each antenna port for uplink data transmission:

P'=P * α/β

[0043] Embodiment 2

[0044] Let the uplink power before scaling calculated based on the link power control factor be P, the uplink power scaling factor is α, and the number of non-zero uplink antenna ports is β. A non-zero uplink antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero, which is hereinafter referred to as the number of non-zero antenna ports.

[0045] If the terminal device supports the second UE capability (eg, none of the RF outputs of the terminal device supports full power data transmission), then the value of the power scaling factor a depends on the operating mode that the UE supports.

[0046] In particular, if the UE supports operating mode 1 (for example, the terminal device reports operating mode 1, and the number of antenna ports for each SRS resource in the SRS resource set, which is configured by the network device based on the operating mode reported by the terminal device, is the same ), then the power scaling factor α can be defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by one SRS resource as reported by the terminal.

[0047] If the UE supports operating mode 2 (for example, the terminal device reports operating mode 2, and the number of antenna ports for each SRS resource in the SRS resource set, which is configured by the network device based on the operating mode reported by the terminal device, is different), then the power scaling factor a can be defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by the SRS resource that has been configured by the network device.

[0048] After determining the power scaling factor a by the method of the present invention, the terminal first scales the uplink power P based on the power scaling factor α, and then evenly distributes the received power among the non-zero uplink antenna ports to obtain uplink power (actual data power) P' of each antenna port for uplink data transmission:

P'=P * α/β

[0049] Embodiment 3

[0050] Let the uplink power before scaling calculated based on the link power control factor is P, the uplink power scaling factor is a, and the number of non-zero uplink antenna ports is β. A non-zero uplink antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero, which is hereinafter referred to as the number of non-zero antenna ports.

[0051] If the terminal device supports the third capability of the UE (eg, part of the RF outputs of the terminal device support full power data transmission), then the value of the power scaling factor a depends on the operating mode that is supported by the UE.

[0052] In particular, if the UE supports operating mode 1 (for example, the terminal device reports operating mode 1, and the number of antenna ports for each SRS resource in the SRS resource set, which is configured by the network device based on the operating mode reported by the terminal device, is the same ), then the power scaling factor a can be defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by one SRS resource as reported by the terminal.

[0053] If the UE supports operating mode 2 (for example, the terminal device reports operating mode 2, and the number of antenna ports for each SRS resource in the SRS resource set, which is configured by the network device based on the operating mode reported by the terminal device, is different), then the value of the power scaling factor may depend on whether the tag reported the TPMI for data transmission at full power and whether the TPMI reported by the network device falls within the range of the TPMI reported by the tag. In particular, the following three cases are possible:

a) if the terminal has not reported a TPMI indicator for full power transmission, then the power scaling factor a can be defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports that is supported by the SRS resource and specified by the network device;

b) if the terminal device has reported a TPMI indicator for data transmission at full power, and the TPMI indicator reported by the network device falls within the range of the TPMI indicator reported by the terminal device, then the power scaling factor can be set to 1, i.e. α=1, where ,

а индикатор TPMI, сообщенный сетевым устройством, может быть равен

тогда очевидно, что индикатор TPMI, сообщенный сетевым устройством, попадает в диапазон индикатора TPMI, сообщенного оконечным устройством, поэтому а можно приравнять к 1;for example, the TPMI reported by the terminal may be

and the TPMI reported by the network device may be

it is then clear that the TPMI reported by the network device falls within the range of the TPMI reported by the terminal, so a can be equated to 1;

c) if the terminal device has reported a TPMI indicator for data transmission at full power, but the TPMI indicator reported by the network device does not fall within the range of the TPMI indicator reported by the terminal device, then the power scaling factor a can be defined as the ratio of the number of non-zero antenna ports to the maximum the number of antenna ports supported by one SRS resource and reported by the terminal.

а индикатор TPMI, сообщенный сетевым устройством, может быть равен

Тогда очевидно, что индикатор TPMI, сообщенный сетевым устройством, не попадает в диапазон индикатора TPMI, сообщенного оконечным устройством, а значение α равно отношению количества ненулевых антенных портов β к максимальному количеству антенных портов, поддерживаемому одним ресурсом SRS и сообщенному оконечным устройством.[0054] For example, the TPMI reported by the terminal may be

and the TPMI reported by the network device may be

It is then obvious that the TPMI indicator reported by the network device does not fall within the range of the TPMI indicator reported by the terminal device, and the value of α is equal to the ratio of the number of non-zero antenna ports β to the maximum number of antenna ports supported by one SRS resource and reported by the terminal device.

[0055] After determining the power scaling factor a by the method of the present invention, the terminal device first scales the uplink power P based on the power scaling factor a, and then evenly distributes the received power among the non-zero uplink antenna ports to obtain uplink power (actual data power) P' of each antenna port for uplink data transmission:

P'=P * α/β

[0056] In any of the above embodiments, the uplink capability of a terminal at full power can be determined as follows:

(1) the terminal reports a full power uplink capability; or

(2) the tag reports full power uplink capability and receives the indicator for full power uplink reported by the network device indicating that the tag should use the full power uplink mode when transmitting data on the uplink. communication lines.

[0057] In method (2), after the tag reports the possibility of full power uplink data transmission, the network device informs the tag device of an indicator for full power uplink data transmission. The network device may send an indication to the terminal device for full power uplink data transmission in any of the following ways:

Method 1: Sending an indicator for full power uplink data transmission by RRC radio resource control, MAC media access control, or DCI downlink information;

method 2: Sending a TPMI indicator for full power uplink data transmission and using TPMI to indicate that the terminal device should use the full power uplink data transmission mode when transmitting data on the uplink;

Method 3: Configure the terminal device for an SRS resource corresponding to the precoding codebook, where the number of antenna ports of the configured SRS resource matches the number of non-zero antenna ports specified in the precoding codebook.

[0058] After the tag reports full power uplink data capability, the network device can perform uplink data transmission in accordance with the steps shown in FIG. 2. The method shown in FIG. 2 may include the following steps.

[0059] Action S201. If the full power uplink capability reported by the terminal is the second UE capability or the third UE capability, then the network device reports the TPMI indicator to the terminal.

[0060] The TPMI indicator reported by the network device indicates that the terminal should perform upstream data transmission based on the codebook for precoding determined with respect to the upstream parameter. The uplink parameter includes the number of uplink antenna ports on the terminal device, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set configured by the network device.

[0061] Action S202. If the uplink rating on the terminal is equal to the number of uplink antenna ports on the terminal, then the terminal performs upstream based on the precoding codebook that is indicated in the TPMI reported by the network device and based on the power value uplink obtained by scaling with a power scaling factor.

[0062] The codebook for precoding is determined based on the number of uplink antenna ports on the terminal device, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set configured by the network device.

[0063] Action S203. If the number of antenna ports for each SRS resource in the SRS resource set is different, and the uplink rating of the terminal is less than the number of uplink antenna ports, then the terminal performs uplink at the uplink power obtained by scaling with using the power scaling factor, but not based on the codebook for precoding, which is indicated in the TPMI reported by the network device.

[0064] Optionally, if the number of antenna ports for each SRS resource in the SRS resource set is different and the tag's uplink rating is less than the number of upstream antenna ports, then the tag may perform uplink data transmission at uplink power. data transmission obtained by scaling with the power scaling factor, and in the transmission mode of the SRS resource corresponding to the number of antenna ports of the SRS resource, which is the same as the uplink rating.

[0065] As follows from this embodiment, if the terminal device supports the second UE capability or the third UE capability, as well as operating mode 2, and the uplink data rating on the terminal device is less than the number of uplink antenna ports, that is, the number number of antenna ports for the SRS resource included in the codebook-based data transmission SRS resource set is less than the maximum number of antenna ports supported by the SRS resource, the precoding codebook indicated in the TPMI indicator becomes redundant. In this case, the terminal device does not use the precoding codebook that is indicated in the TPMI reported by the network device. If necessary, the uplink transmission may be performed in the SRS resource transmission mode corresponding to the number of antenna ports of the SRS resource, which is the same as the uplink rating.

[0066] The following describes in detail a procedure for setting up a codebook for precoding on a terminal device by a network device in consideration of the uplink parameter.

[0067] Embodiment 4

[0068] In this embodiment, the terminal device supports the second UE capability or the third UE capability. For example, none of the tag's RF outputs support full power transmission, or some of the tag's RF outputs support full power transmission. The terminal supports operating mode 1, which means that the number of antenna ports for each SRS resource in the SRS resource set configured by the network device is the same. Accordingly, the codebook for precoding may depend on the number of uplink antenna ports and on the uplink rating. Namely:

[0069] (1) If the number of uplink antenna ports is 2 and the uplink rating is 1, then the precoding codebook can be determined as follows:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга.code book corresponding to the value of the indicator TPMI=2, i.e.

or a fully matched codebook, a partially matched codebook, and a non-matched codebook.

[0070] (2) If the number of uplink antenna ports is 4, then the precoding codebook may be determined differently depending on the uplink rating:

[0071] a) If the uplink rating is 1, then the codebook for precoding can be determined as follows:

либо

илиcode book corresponding to the value of the indicator TPMI=12, i.e.

or

or

илиcode book corresponding to the value of the indicator TPMI=8, i.e.

or

илиcodebook corresponding to the value of the indicator TPMI=4, i.e.

or

fully matched codebook, partially matched codebook, and non-matched codebook.

либо

[0072] The preferred option is the codebook corresponding to the indicator value TPMI=12, i.e.

or

[0073] b) If the uplink rating is 2, then the codebook for precoding can be determined as follows:

илиcode book corresponding to the value of the indicator TPMI=6, i.e.

or

fully matched codebook, partially matched codebook, and non-matched codebook.

[0074] c) If the uplink rating is 3, then the codebook for precoding can be determined as follows:

илиcode book corresponding to the value of the indicator TPMI=1, i.e.

or

fully matched codebook, partially matched codebook, and non-matched codebook.

[0075] Embodiment 5

[0076] In this embodiment, the terminal device supports the second UE capability or the third UE capability. For example, none of the tag's RF outputs support full power transmission, or some of the tag's RF outputs support full power transmission. The terminal device supports operating mode 2, that is, the number of antenna ports for each SRS resource in the SRS resource set configured by the network device is different. Accordingly, the codebook for precoding may depend on the number of uplink antenna ports, the uplink rating, and the number of antenna ports for each SRS resource. Namely:

[0077] (1) The number of uplink antenna ports is 2, and the SRS resource configured by the network device includes two SRS resources, where one SRS resource includes one antenna port and the other SRS resource includes two antenna ports. In this case, if the network device configures an antenna port for only one SRS resource, because the uplink rating on the terminal device is less than the number of uplink antenna ports, that is, the number of antenna ports for each SRS resource in the SRS resource set is less than than the maximum number of antenna ports supported by the SRS resource, the codebook for precoding, which is indicated in the TPMI indicator, becomes redundant. In this case, the terminal device does not use the precoding codebook that is indicated in the TPMI reported by the network device. If necessary, the uplink transmission may be performed in the SRS resource transmission mode corresponding to the number of antenna ports of the SRS resource, which is the same as the uplink rating.

[0078] (2) The number of antenna ports for uplink is 4. The codebook for precoding may depend on the number of SRS resources included in the SRS resource set and the number of antenna ports in each SRS resource. Namely:

[0079] a) If the SRS resource set includes two SRS resources, where one SRS resource includes one antenna port and the other SRS resource includes four antenna ports, then:

if the uplink rating is 1, because the uplink rating is less than the number of antenna ports for uplink, that is, the number of antenna ports for each SRS resource in the SRS resource set is less than the maximum number of antenna ports supported by the SRS resource, then the precoding codebook that is indicated in the TPMI indicator becomes redundant, in which case the terminal device does not use the precoding codebook that is indicated in the TPMI indicator reported by the network device, and the uplink data transmission can be performed in the transmit mode if necessary. an SRS resource corresponding to the number of antenna ports of the SRS resource that matches the uplink rating;

if the uplink rating is 2, then the codebook for precoding can be determined as follows: the codebook corresponding to the value of TPMI=6, i.e.:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга; или

or a fully matched codebook, a partially matched codebook, and an unmatched codebook; or

if the uplink rating is 3, then the codebook for precoding can be determined as follows: the codebook corresponding to the value of TPMI=1, i.e.:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга.

or a fully matched codebook, a partially matched codebook, and a non-matched codebook.

[0080] b) If the SRS resource set includes three SRS resources, where the first SRS resource includes one antenna port, the second SRS resource includes two antenna ports, and the third SRS resource includes four antenna ports, then:

if the uplink rating is 1 or 2 because the uplink rating is less than the number of uplink antenna ports, that is, the number of antenna ports for each SRS resource in the SRS resource set is less than the maximum number of antenna ports supported by the resource SRS, the precoding codebook that is indicated in the TPMI indicator becomes redundant, in which case the terminal device does not use the precoding codebook that is indicated in the TPMI indicator reported by the network device, and the uplink data transmission, if necessary, can be performed in an SRS resource transmission mode corresponding to the number of antenna ports of the SRS resource that matches the uplink rating; or

if the uplink rating is 3, then the codebook for precoding can be determined as follows: codebook corresponding to the value of the indicator TPMT=1, that is:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга.

or a fully matched codebook, a partially matched codebook, and a non-matched codebook.

[0081] Specific embodiments of the present invention have been described above. All other embodiments are within the scope of protection for this invention and the claims of this invention. In some cases, the actions or steps described in the claims of this invention may be performed in a different order than provided in the embodiments, but still achieve the desired results. In addition, the processes shown in the accompanying drawings do not have to be performed in the described order or sequentially to achieve the desired results. In some embodiments, multitasking and parallel processing may also be used or preferred.

[0082] FIG. 3 is a schematic block diagram of a terminal device in accordance with one embodiment of the present invention. As shown in FIG. 3, terminal 300 may include:

a transmission module 310 configured for uplink transmission at the uplink power obtained by scaling with a power scaling factor that is determined based on a power control factor.

[0083] The power control factor includes at least one of the following criteria: the ability of the terminal to transmit data upstream at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[0084] In one embodiment, the transmitter module 310 is further configured to perform the following actions:

if the power control factor satisfies the following condition, then the power scaling factor is set to 1:

all RF outputs of the terminal device support data transmission at full power; or

some RF outputs of the terminal device support full power transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI reported by the network device falls within the range of the TPMI reported by the terminal device.

[0085] Full power data transmission is data transmission at the maximum power supported by the terminal device.

[0086] In one embodiment, the transmitter module 310 is further configured to perform the following actions:

if the power control factor satisfies the following condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by one SRS resource as reported by the terminal:

none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or

a portion of the RF outputs of the terminal support full power data transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or

part of the RF outputs of the terminal device supports full power transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI reported by the network device is out of range of the TPMI reported by the terminal device, where

a non-zero antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero.

[0087] In one embodiment, the transmitter module 310 is further configured to perform the following actions:

if the power control factor satisfies the following condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by the SRS resource, which is configured by the network device:

none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is different; or

some RF outputs of the terminal support full power data transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the terminal did not report a TPMI indicator for full power data transmission.

[0088] In one embodiment, the transmitter module 310 is further configured to perform the following actions:

full power uplink capability message; or

reporting a full power uplink capability; and receiving an indicator for full power uplink data reported by the network device indicating that the terminal should use the full power uplink mode when transmitting data on the uplink.

[0089] In one embodiment, the transmitter module 310 is further configured to perform the following actions:

if the uplink capability of the terminal is that none of the RF outputs of the terminal are capable of transmitting data at full power, or a portion of the RF outputs of the terminal are capable of transmitting data at full power, and the upstream rating of the terminal is equal to the number uplink antenna ports on the terminal device, then uplink transmission is performed at the uplink power according to the precoding codebook reported by the network device, where

the codebook for precoding is determined based on the number of uplink antenna ports on the terminal, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set.

[0090] In one embodiment, the transmitter module 310 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set configured by the network device is different, and the uplink rating is less than the number of antenna ports for uplink transmission, then uplink transmission is performed at the uplink power in the SRS resource transmission mode , corresponding to the number of antenna ports of the SRS resource, which is the same as the uplink rating.

[0091] The terminal device in this embodiment of the present invention may implement processes according to the description of the terminal device in the above method embodiments. To avoid repetition, the detailed description is no longer provided in this document.

[0092] In this embodiment of the present invention, the terminal may perform uplink data transmission at the uplink data power obtained by scaling with a power scaling factor and also based on a plurality of power control factors (including at least one of the following criteria: uplink at full power, the supported TPMI transmission precoding matrix indicator reported by the terminal, the TPMI reported by the network device, the operating mode reported by the terminal, and the number of antenna ports for each SRS resource in the SRS Sounding Reference Resource Set , which is configured by the network device based on the operating mode), which can be shared for uplink power scaling. As a result, uplink power is increased, uplink coverage is increased, and full power uplink data transmission is realized for the terminal.

[0093] FIG. 4 is a schematic block diagram of a network device in accordance with one embodiment of the present invention. As shown in FIG. 4, network device 400 may include:

a receiving module 410 configured to receive uplink data from the terminal, where the uplink is performed by the terminal at the uplink power obtained by scaling with a power scaling factor that is determined based on the power control factor.

[0094] The power control factor includes at least one of the following criteria: the ability of the terminal to transmit data upstream at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[0095] In one embodiment, network device 400 further includes:

the first reporting module configured to perform the following action: if none of the RF outputs of the terminal device support full power data transmission, or a part of the RF outputs of the terminal device support full power data transmission, then until data is received from the terminal device, the uplink is sending a TPMI indicator to the terminal indicating that the terminal is to perform upstream data transmission based on the precoding codebook determined with respect to the upstream parameter, where

the uplink parameter includes the number of uplink antenna ports on the terminal device, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set configured by the network device, and full power uplink indicates data transmission at the maximum power supported by the end device.

[0096] In one embodiment, the first reporting module 410 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 2, and the uplink rating is 1, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[0097] In one embodiment, the first reporting module 410 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 2, and the uplink rating is 1, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[0098] In one embodiment, the first reporting module 410 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 1, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[0099] In one embodiment, the first reporting module 410 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 2, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00100] In one embodiment, the first reporting module 410 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 3, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00101] In one embodiment, the first reporting module 410 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set is different, the number of antenna ports for uplink transmission is 4, and the SRS resource set includes two SRS resources, with one SRS resource including one antenna port and the other SRS resource includes four antenna ports, then:

if the uplink rating is 2, then the precoding codebook is determined as follows:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга; или

or a fully matched codebook, a partially matched codebook, and an unmatched codebook; or

if the uplink rating is 3, then the precoding codebook is determined as follows:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга.

or a fully matched codebook, a partially matched codebook, and a non-matched codebook.

[00102] In one embodiment, the first reporting module 410 is further configured to perform the following actions:

if the number of antenna ports for each SRS resource in the SRS resource set is different, the number of antenna ports for uplink is 4, the uplink rating is 3, and the SRS resource set includes three SRS resources, with the first SRS resource including one antenna port, the second SRS resource includes two antenna ports, and the third SRS resource includes four antenna ports, the precoding codebook is defined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00103] In one embodiment, network device 400 further includes:

a second reporting module configured to do the following: if the terminal has reported full power uplink capability, then an indicator for full power uplink data is sent to the terminal indicating that the terminal should use the uplink mode data at full power when transmitting data on the uplink.

[00104] In one embodiment, the second reporting module is further configured to perform the following actions:

sending an indicator for full power uplink data transmission by RRC radio resource control, MAC media access control, or DCI downlink information; or

sending a TPMI indicator to transmit data at full power; or

settings for the SRS resource terminal corresponding to the precoding codebook, where the number of antenna ports of the configured SRS resource matches the number of non-zero antenna ports specified in the precoding codebook.

[00105] A non-zero antenna port is a port for which all precoding codebook line values corresponding to the antenna port are non-zero.

[00106] The network device in this embodiment of the present invention can implement processes according to the description of the network device in the above method embodiment. To avoid repetition, the detailed description is no longer provided in this document.

[00107] In this embodiment of the present invention, the network device can receive data from the terminal device in uplink data transmission, where the uplink data transmission is performed by the terminal device at the uplink power obtained by scaling with a power scaling factor, which is determined based on the control factor power (including at least one of the following criteria: the ability of the terminal to transmit data at full power; the supported TPMI transmission precoding matrix indicator reported by the terminal; the TPMI indicator reported by the network device; the operating mode reported by the terminal; and the number of antennas ports for each SRS resource in the SRS sounding reference resource set, which is configured by the network device based on the operating mode). As a result, uplink power is increased, uplink coverage is increased, and full power uplink data transmission is realized for the terminal.

[00108] FIG. 5 is a block diagram of a network device in accordance with one embodiment of the present invention. All steps of the full power uplink method implemented by the network device in the above embodiments can be implemented with the same technical effects. As shown in FIG. 5, the network device 500 includes a processor 501, a transceiver 502, a memory 503, a user interface 504, and a bus interface.

[00109] In this embodiment of the present invention, the network device 500 further includes a computer program that is stored in the memory 503 and can run on the processor 501. When the computer program is executed by the processor 501, the following step is implemented:

receiving data from a terminal in an uplink, where the uplink is performed by the terminal at the uplink power obtained by scaling with a power scaling factor, which is determined based on a power control factor, where

the power control factor includes at least one of the following criteria: the ability of the terminal to transmit data upstream at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[00110] As shown in FIG. 5, the bus architecture may include any number of interconnected buses and bridges for connecting various circuits of one or more processors, represented by processor 501, and memory, represented by memory 503. The bus architecture may also interconnect other circuits, such as a peripheral, voltage regulator and power control circuit. All of them are well known in the art and therefore are not described in detail in this document. The bus interface provides the necessary connection interfaces. The transceiver 502 may be a plurality of components, that is, the transceiver 502 may include a transmitter, a receiver, and a unit for communicating with other components of the communication medium. For various types of user equipment, the user interface 504 may also be an interface that connects to the desired device internally or externally. The connected device includes, among other things, a keyboard, a display, a speaker, a microphone, a joystick, and the like.

[00111] The processor 501 is responsible for managing the bus architecture and general data processing. The memory 503 may store data used during the operation of the processor 501.

[00112] If necessary, when the computer program is executed by the processor 501, the following step may be further implemented:

if none of the RF outputs of the terminal device support full power transmission, or if a portion of the RF outputs of the terminal device support full power transmission, then a TPMI indicator is sent to the terminal before data is received from the terminal device on the uplink, which indicates that that the terminal device should perform upstream data transmission based on the precoding codebook determined considering the uplink parameter, where the uplink parameter includes the number of uplink antenna ports on the terminal device, the uplink rating, and the number antenna ports for each SRS resource in the SRS resource set configured by the network device, and full power uplink indicates data transmission at the maximum power supported by the terminal device.

[00113] If necessary, when the computer program is executed by the processor 501, the following step may be further implemented:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 2, and the uplink rating is 1, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00114] If necessary, when the computer program is executed by the processor 501, the following step may be further implemented:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 1, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00115] Optionally, when the computer program is executed by the processor 501, the following step may be further implemented:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 2, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00116] If necessary, when the computer program is executed by the processor 501, the following step may be further implemented:

if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 3, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00117] Optionally, when the computer program is executed by the processor 501, the following step may be further implemented:

if the number of antenna ports for each SRS resource in the SRS resource set is different, the number of antenna ports for uplink transmission is 4, and the SRS resource set includes two SRS resources, with one SRS resource including one antenna port and the other SRS resource includes four antenna ports, then:

if the uplink rating is 2, then the precoding codebook is determined as follows:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга; или

or a fully matched codebook, a partially matched codebook, and an unmatched codebook; or

if the uplink rating is 3, then the precoding codebook is determined as follows:

или полностью согласованная кодовая книга, частично согласованная кодовая книга и несогласованная кодовая книга.

or a fully matched codebook, a partially matched codebook, and a non-matched codebook.

[00118] If necessary, when the computer program is executed by the processor 501, the following step may be further implemented:

if the number of antenna ports for each SRS resource in the SRS resource set is different, the number of antenna ports for uplink is 4, the uplink rating is 3, and the SRS resource set includes three SRS resources, with the first SRS resource including one antenna port, the second SRS resource includes two antenna ports, and the third SRS resource includes four antenna ports, the precoding codebook is defined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook.

[00119] If necessary, when the computer program is executed by the processor 501, the following step may be further implemented:

if the terminal has reported a full power uplink capability, then an indicator for full power uplink data is transmitted to the terminal indicating that the terminal should use the full power uplink mode when transmitting data on the uplink .

[00120] Optionally, when the computer program is executed by the processor 501, the following step may be further implemented:

sending an indicator for full power uplink data transmission by RRC radio resource control, MAC media access control, or DCI downlink information; or

sending TPMI indicator for data transmission at full power; or

setting for the terminal of the SRS resource corresponding to the precoding codebook, where the number of antenna ports of the configured SRS resource is the same as the number of non-zero antenna ports specified in the precoding codebook, where

a non-zero antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero.

[00121] In embodiments of the present invention, a network device may receive data from a tag in an uplink, where the uplink is performed by the tag at an uplink power obtained by scaling with a power scaling factor that is determined based on a power control factor (including at least one of the following criteria: the ability of the terminal to transmit data at full power; the supported TPMI transmission precoding matrix indicator reported by the terminal; the TPMI indicator reported by the network device; the operating mode reported by the terminal; and the number of antenna ports for each SRS resource in the SRS sounding reference resource set, which is configured by the network device based on the operating mode). As a result, uplink power is increased, uplink coverage is increased, and full power uplink data transmission is realized for the terminal.

[00122] FIG. 6 is a block diagram of a terminal device in accordance with another embodiment of the present invention. The terminal device 600 shown in FIG. 6 includes at least one processor 601, a memory 602, at least one network interface 604, and a user interface 603. The components of the terminal device 600 are interconnected via a bus system 605. Obviously, that the bus system 605 is configured to communicate between these components. The bus system 605 may include not only a data bus, but also a power supply bus, a control bus, and a status signal bus. However, for clarity of description, the various types of tires are referred to as busbar system 605 in FIG.

[00123] The user interface 603 may include a display, keyboard, pointing device (eg, mouse or trackball), touch pad, or touch screen.

[00124] Obviously, the memory 602 in this embodiment of the present invention may be volatile memory, non-volatile memory, or include both volatile memory and non-volatile memory. Non-volatile memory can be read-only memory (ROM), read-only programmable memory (Programmable ROM, PROM), erasable read-only programmable memory (Erasable PROM, EPROM), electrically erasable read-only programmable memory ( Electrically EPROM, EEPROM) or flash memory. The non-volatile memory may be Random Access Memory (RAM) and used as an external cache. Many varieties of RAM can be used for illustrative and not restrictive purposes, for example, static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM) , Double Data Rate Synchronous Dynamic Random Access Memory (Double DataRate SDRAM, DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchlink Dynamic Random Access Memory (Synchlink DRAM, SLDRAM), and Random Access Memory access for the direct memory access bus (Direct Rambus RAM, DRRAM). The system memory 602 and the method described in the embodiments of the present invention may include, but is not limited to, any other compatible types of memory.

[00125] In some implementations, the memory 602 stores the following elements: an executable module, a data structure, or a subset or an extended set of them in the form of an operating system 6021 and an application program 6022.

[00126] The operating system 6021 includes various system programs such as a framework, a kernel library, and drivers, and is configured to implement various basic services and perform hardware tasks. The application program 6022 includes various application programs such as a Media Player and a Browser and is configured to implement various application services. A program that implements the methods for carrying out the present invention may be included in an application program 6022.

[00127] In this embodiment of the present invention, terminal device 600 further includes a computer program that is stored in memory 609 and can run on processor 601. During its execution on processor 601, the computer program implements the following steps:

uplink at the uplink power obtained by scaling with a power scaling factor, which is determined based on the power control factor, where

the power control factor includes at least one of the following criteria: the ability of the terminal to transmit data upstream at full power; supported TPMI transmission precoding matrix indicator reported by the terminal; a TPMI indicator reported by the network device; operating mode reported by the terminal device; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode.

[00128] The methods described in embodiments of the present invention apply to processor 601 or are implemented by processor 601. Processor 601 may be an integrated circuit chip with signal processing capability. In practice, the operations in the above method may be implemented by the integrated logic circuit of the processor 601 hardware or by software instructions. Processor 601 may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, a discrete logic device with a gate or transistor, or a discrete hardware component. The processor 601 may implement or execute the methods, steps, and flowcharts described in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor. The steps of the methods described with reference to embodiments of the present invention may be directly implemented by a hardware decoding processor or by a combination of hardware and software modules in a decoding processor. The program module may be stored on a computer-readable storage medium as is well known in the art, including random access memory, flash memory, read only memory, programmable read only memory, electrically erasable programmable memory, or a register. The computer-readable storage medium resides in memory 602, and processor 601 reads information from memory 602 and, in combination with its hardware, implements the steps of the above methods. In particular, the computer program is stored in a computer-readable storage medium and, during its execution on the processor 601, implements the steps of an embodiment of the above full power uplink method.

[00129] It is obvious that the described options can be implemented in the form of hardware, software, firmware, middleware, microcode, or combinations thereof. In the case of hardware implementation, the processing unit can be made in the form of one or more integrated circuits for special purposes (Application Specific Integrated Circuit, ASIC), digital signal processors (Digital Signal processor, DSP), digital signal processing devices (DSP Device, DSPD), programmable logic devices (Programmable Logic Device, PLD), programmable logic integrated circuits (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors and other electronic components, or a combination thereof to perform the functions described in this invention.

[00130] In the case of software implementation, the methods described in embodiments of this invention may be implemented as modules (eg, processes and functions) that perform the functions that are described in this invention. The software code may be stored in memory and executed by a processor. Memory can be implemented both inside the processor and outside the processor.

[00131] Optionally, when the computer program is executed by the processor 601, the following step may be further implemented:

if the power control factor satisfies the following condition, then the power scaling factor is set to 1:

all RF outputs of the terminal device support full power transmission, or a portion of the RF outputs of the terminal device support full power transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI reported by the network device falls within the range of the TPMI indicator reported by the end device, where

full power transmission is the transmission of data at the maximum power supported by the terminal device.

[00132] Optionally, when the computer program is executed by the processor 601, the following step may be further implemented:

if the power control factor satisfies the following condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by one SRS resource as reported by the terminal:

none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or

a portion of the RF outputs of the terminal support full power data transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or

part of the RF outputs of the terminal device support full power transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI indicator reported by the network device does not fall within the range of the TPMI indicator for full power data transmission reported by the terminal device, Where

a non-zero antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero.

[00133] If necessary, when the computer program is executed by the processor 601, the following step may be further implemented:

if the power control factor satisfies the following condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by the SRS resource, which is configured by the network device:

none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is different; or

some RF outputs of the terminal support full power data transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the terminal did not report a TPMI indicator for full power data transmission.

[00134] Optionally, when the computer program is executed by the processor 601, the following step may be further implemented:

full power uplink capability message; or

reporting a full power uplink capability; and receiving an indicator for full power uplink data reported by the network device indicating that the terminal should use the full power uplink mode when transmitting data on the uplink.

[00135] Optionally, when the computer program is executed by the processor 601, the following step may be further implemented:

if the uplink capability of the terminal is that none of the RF outputs of the terminal are capable of transmitting data at full power, or a portion of the RF outputs of the terminal are capable of transmitting data at full power, and the upstream rating of the terminal is equal to the number uplink antenna ports on the terminal device, then uplink transmission is performed at the uplink power according to the precoding codebook reported by the network device, where

the codebook for precoding is determined based on the number of uplink antenna ports on the terminal, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set.

[00136] Optionally, when the computer program is executed by the processor 601, the following step may be further implemented:

if the number of antenna ports for each SRS resource in the SRS resource set configured by the network device is different, and the uplink rating is less than the number of antenna ports for uplink transmission, then uplink transmission is performed at the uplink power in the SRS resource transmission mode , corresponding to the number of antenna ports of the SRS resource, which is the same as the uplink rating.

[00137] Terminal device 600 may implement processes as described by the terminal device in the above embodiments. To avoid repetition, the detailed description is no longer provided in this document.

[00138] In this embodiment of the present invention, the terminal may perform uplink data transmission at the uplink data power obtained by scaling with a power scaling factor and also based on a plurality of power control factors (including at least one of the following criteria: uplink at full power, the supported TPMI transmission precoding matrix indicator reported by the terminal, the TPMI reported by the network device, the operating mode reported by the terminal, and the number of antenna ports for each SRS resource in the SRS Sounding Reference Resource Set , which is configured by the network device based on the operating mode), which can be shared for uplink power scaling. As a result, uplink power is increased, uplink coverage is increased, and full power uplink data transmission is realized for the terminal.

[00139] One embodiment of the present invention further provides a terminal device including a processor and memory, as well as a computer program that is stored in the memory and can run on the processor. When the computer program is executed by the processor, the processes of the above embodiment of the full power uplink data transmission method are implemented with the same technical effects. To avoid repetition, the detailed description is no longer provided in this document.

[00140] One embodiment of the present invention further provides a network device including a processor and memory, as well as a computer program that is stored in the memory and can run on the processor. When the computer program is executed by the processor, the processes of the above embodiment of the full power uplink data transmission method are implemented with the same technical effects. To avoid repetition, the detailed description is no longer provided in this document.

[00141] One embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by the processor, the processes of the above embodiment of the full power uplink data transmission method are implemented with the same technical effects. To avoid repetition, the detailed description is no longer provided in this document. The computer-readable storage medium can be, for example, a read-only memory (Read-Only Memory, abbreviated as ROM), random access memory (Random Access Memory, abbreviated as RAM), a magnetic disk, or an optical disk.

[00142] FIG. 7 is a flowchart of a full power uplink data transmission method in accordance with one embodiment of the present invention. The method shown in FIG. 7 applies to a network device and may include the following:

[00143] Action S701. If none of the RF outputs of the target device support full power transmission, or if some of the RF outputs of the terminal device support full power transmission, then a TPMI indicator is sent to the terminal device indicating that the terminal device should perform upstream data transmission on on the basis of the codebook for pre-coding determined with respect to the uplink parameter.

[00144] The uplink parameter includes the number of uplink antenna ports on the terminal, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set configured by the network device, and full power uplink indicates to transmit data at the maximum power supported by the terminal device.

[00145] It should be noted that the codebook for precoding may depend on the number of uplink antenna ports and the uplink rating. The codebook for precoding is determined in the same manner as described in the above embodiment, and is not described again here.

[00146] It should be noted that the terms "comprises", "includes", or any other variations thereof in the description of this invention are not meant to be exclusive, so, for example, processes, methods, articles, or devices that include a set of elements are not necessarily limited to directly listed elements, but may include other elements not listed or not explicitly inherent in such processes, methods, products or devices. Unless otherwise restricted, an element preceded by "includes..." does not preclude the existence of other identical elements in processes, methods, articles, or devices that include such element.

[00147] Based on the above description of the implementations, it will be apparent to those skilled in the art that the methods in the above embodiments may be implemented as software in combination with the required common hardware platform, or as hardware alone. However, in most cases the described embodiments are preferred. Accordingly, the technical solutions described herein may be implemented as a software product alone or in combination with the prior art. A computer program product is stored on a storage medium (for example, ROM/RAM, magnetic disk, or optical disk) and includes several instructions for a terminal device (which may be a mobile phone, computer, server, air conditioner, network device, or their analogue) in order to implement the method described in the embodiments of the present invention.

[00148] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific implementation options are only illustrative and not restrictive. As indicated herein, those skilled in the art may develop other embodiments based on the same principles and therefore within the scope of protection for this invention.

Claims (87)

1. A full power uplink method applied to a terminal device and including: uplink at the uplink power obtained by scaling with a power scaling factor, which is determined based on the power control factor, where the power control factor includes at least one of the following criteria: operating mode reported by the terminal; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode; wherein the operating mode includes the same or different number of antenna ports for each SRS resource in the SRS resource set configured by the network device, wherein the power scaling factor is determined by at least one of the following methods: method A: if the power control factor satisfies the following first condition, then the power scaling factor is set to 1: all RF outputs of the terminal device support data transmission at full power; or part of the RF outputs of the terminal device support full power data transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI transmission precoding matrix indicator reported by the network device falls within the range of the TPMI indicator reported by the terminal device, where data transmission at full power is the transmission of data at the maximum power supported by the terminal device; way B: if the power control factor satisfies the following second condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by one SRS resource as reported by the terminal: none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or a portion of the RF outputs of the terminal support full power data transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or part of the RF outputs of the terminal device support full power transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI indicator reported by the network device does not fall within the range of the TPMI indicator for full power data transmission reported by the terminal device, Where a non-zero antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero; way C: if the power control factor satisfies the following third condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by the SRS resource, which is configured by the network device: none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is different; or some RF outputs of the terminal support full power data transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the terminal did not report a TPMI indicator for full power data transmission. 2. The method of claim 1, wherein the power control factor includes the terminal's full power uplink data transmission capability and the full power uplink data transmission is determined by one of the following methods: full power uplink capability message; or reporting full power uplink capability and receiving an indicator for full power uplink reported by the network device indicating that the terminal should use the full power uplink mode when transmitting data on the uplink. 3. The method of claim 1, wherein the power control factor includes the ability of the terminal to transmit data upstream at full power and to transmit data upstream at the uplink power obtained by scaling with the power scaling factor, includes the following steps: if the uplink capability of the terminal is that none of the RF outputs of the terminal are capable of transmitting data at full power, or a portion of the RF outputs of the terminal are capable of transmitting data at full power, and the upstream rating of the terminal is equal to the number uplink antenna ports on the terminal device, then uplink transmission is performed at the uplink power according to the precoding codebook reported by the network device, where the codebook for precoding is determined based on the number of uplink antenna ports on the terminal, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set. 4. The method of claim 1, wherein the uplink data transmission at the uplink data power obtained by scaling with a power scaling factor includes the following steps: if the number of antenna ports for each SRS resource in the SRS resource set configured by the network device is different, and the uplink rating on the terminal device is less than the number of antenna ports for uplink data transmission on the terminal device, then uplink transmission is performed at the uplink power data in the SRS resource transmission mode corresponding to the number of antenna ports of the SRS resource, which is the same as the uplink rating. 5. A full power uplink method applied to a network device, including receiving data from a terminal in an uplink, where the uplink is performed by the terminal at the uplink power obtained by scaling with a power scaling factor, which is determined based on a power control factor, where the power control factor includes at least one of the following criteria: operating mode reported by the terminal; and the number of antenna ports for each SRS resource in the SRS sounding reference signal resource set, which is configured by the network device based on the operating mode; wherein the operating mode includes the same or different number of antenna ports for each SRS resource in the SRS resource set configured by the network device, wherein the power scaling factor is determined by at least one of the following methods: method A: if the power control factor satisfies the following first condition, then the power scaling factor is set to 1: all RF outputs of the terminal device support data transmission at full power; or part of the RF outputs of the terminal device support full power data transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI transmission precoding matrix indicator reported by the network device falls within the range of the TPMI indicator reported by the terminal device, where data transmission at full power is the transmission of data at the maximum power supported by the terminal device; way B: if the power control factor satisfies the following second condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by one SRS resource as reported by the terminal: none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or a portion of the RF outputs of the terminal support full power data transmission, and the number of antenna ports for each SRS resource in the SRS resource set is the same; or part of the RF outputs of the terminal device support full power transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the TPMI indicator reported by the network device does not fall within the range of the TPMI indicator for full power data transmission reported by the terminal device, Where a non-zero antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero; way C: if the power control factor satisfies the following third condition, then the power scaling factor is defined as the ratio of the number of non-zero antenna ports to the maximum number of antenna ports supported by the SRS resource, which is configured by the network device: none of the RF outputs of the terminal device supports full power transmission, and the number of antenna ports for each SRS resource in the SRS resource set is different; or some RF outputs of the terminal support full power data transmission, the number of antenna ports for each SRS resource in the SRS resource set is different, and the terminal did not report a TPMI indicator for full power data transmission. 6. The method of claim 5, which, prior to receiving uplink data from the terminal, further comprises the following: if none of the RF outputs of the target device support full power transmission, or if a portion of the RF outputs of the terminal device support full power transmission, then a TPMI indicator is sent to the terminal device, which indicates that the terminal device should perform upstream data transmission on based on the codebook for precoding defined with respect to the uplink parameter, where the uplink parameter includes the number of uplink antenna ports on the terminal device, the uplink rating, and the number of antenna ports for each SRS resource in the SRS resource set configured by the network device, and full power uplink indicates data transmission at the maximum power supported by the end device. 7. The method of claim 6, wherein the precoding codebook is determined as follows: if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 2, and the uplink rating is 1, then the codebook for precoding is determined as follows:

or fully matched codebook, partially matched codebook, and non-matched codebook. 8. The method of claim 6, wherein the precoding codebook is determined as follows: if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 1, then the codebook for precoding is determined as follows:

fully matched codebook, partially matched codebook, and non-matched codebook. 9. The method of claim 6, wherein the precoding codebook is determined as follows: if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 2, then the codebook for precoding is determined as follows:

or fully matched codebook, partially matched codebook, and non-matched codebook. 10. The method of claim 6, wherein the precoding codebook is determined as follows: if the number of antenna ports for each SRS resource in the SRS resource set is the same, the number of antenna ports for uplink is 4, and the uplink rating is 3, then the codebook for precoding is determined as follows:

or fully matched codebook, partially matched codebook, and non-matched codebook. 11. The method of claim 6, wherein the precoding codebook is determined as follows: if the number of antenna ports for each SRS resource in the SRS resource set is different, the number of antenna ports for uplink transmission is 4, and the SRS resource set includes two SRS resources, with one SRS resource including one antenna port and the other SRS resource includes four antenna ports, then: if the uplink rating is 2, then the precoding codebook is determined as follows:

or a fully matched codebook, a partially matched codebook, and an unmatched codebook; or if the uplink rating is 3, then the precoding codebook is determined as follows:

or a fully matched codebook, a partially matched codebook, and a non-matched codebook. 12. The method of claim 6, wherein the precoding codebook is determined as follows: if the number of antenna ports for each SRS resource in the SRS resource set is different, the number of antenna ports for uplink is 4, the uplink rating is 3, and the SRS resource set includes three SRS resources, with the first SRS resource including one antenna port, the second SRS resource includes two antenna ports, and the third SRS resource includes four antenna ports, the precoding codebook is defined as follows:

or fully matched codebook, partially matched codebook, and non-matched codebook. 13. The method of claim 6, further comprising the following steps: if the terminal has reported a full power uplink capability, then an indicator for full power uplink data is transmitted to the terminal indicating that the terminal should use the full power uplink mode when transmitting data on the uplink . 14. The method of claim 13, wherein sending an indicator for full power uplink data transmission to the terminal includes: sending an indicator for full power uplink data transmission by RRC radio resource control, MAC media access control, or DCI downlink information; or sending a TPMI indicator for transmitting data at full power; or setting for the terminal of the SRS resource corresponding to the precoding codebook, where the number of antenna ports of the configured SRS resource is the same as the number of non-zero antenna ports specified in the precoding codebook, where a non-zero antenna port is a port in which all precoding codebook line values corresponding to the antenna port are non-zero. 15. Terminal communication device, including: a memory that stores the instructions of a computer program; a processor that executes the instructions of a computer program and thereby implements the full power uplink data transmission method of any one of claims. 1-4. 16. Network communication device, including: a memory that stores the instructions of a computer program; a processor that executes the instructions of a computer program and thereby implements the full power uplink data transmission method of any one of claims. 5-14.

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