TWI726038B - Power control for links in beamforming systems - Google Patents

Abstract

Embodiments herein describe devices, methods, computer-readable media, and systems for transmission power control for uplink (UL) channels. A user equipment (UE) may obtain a measurement of a beamformed reference signal (BRS) for a link of the set of active links, derive a pathloss value based on the measurement of the BRS, receive an uplink grant for an UL transmission by the link, and determine a transmission power for the UL transmission based on the pathloss value, and a plurality of power control parameters acquired by signaling from a layer higher than a physical layer. The eNB may periodically transmit a BRS for a link of the set of active links, schedule the link to transmit UL, determine a plurality of power control parameters, and further send a signal from a layer higher than a physical layer to the UE for signaling the plurality of power control parameters.

Description

Power control of link in beamforming system

The embodiments generally relate to the field of wireless communication.

In order to meet the increasing demand for data, a wireless communication system such as a 5G system may adopt radio access technologies (RAT) that communicate at a very high carrier frequency such as the millimeter wave (mmWave) spectrum. However, electromagnetic wave propagation may be poor at such high carrier frequencies. Evolved Node B (eNB), Transmission and Reception Point (TRP) and User Equipment (UE) can use highly directional antenna arrays to overcome the attenuation caused by wall penetration, leaves, barriers, etc. at high carrier frequencies The path loss of electromagnetic wave propagation. Large bandwidth digital-to-analog converters (DAC) and analog-to-digital converters (ADC) operating at high sampling rates can be used to support highly directional antenna arrays. However, such DACs and ADCs may be inefficient in power consumption.

100‧‧‧Electronic device

102‧‧‧Application circuit

104‧‧‧Baseband circuit

104a‧‧‧The second generation (2G) baseband processor

104b‧‧‧The third generation (3G) baseband processor

104c‧‧‧Fourth generation (4G) baseband processor

104d‧‧‧Other baseband processors

104e‧‧‧Central Processing Unit

104f‧‧‧Audio Digital Signal Processor (DSP)

104g‧‧‧Memory/Storage

106‧‧‧RF circuit

106a‧‧‧Mixer circuit

106b‧‧‧Amplifier circuit

106c‧‧‧Filter circuit

106d‧‧‧Synthesizer circuit

108‧‧‧Front End Module (FEM) Circuit

110, 1511, 1513, 1522, 1524, 1531, 1533, 1611, 1613, 1615‧‧‧antenna

124‧‧‧Computer readable media

128‧‧‧Programming instructions

130‧‧‧device

131‧‧‧Control circuit

133‧‧‧Transmitter/Receiver

150‧‧‧Wireless communication network

151‧‧‧Evolved Node B (eNB)

152‧‧‧User Equipment (UE)

153‧‧‧Transmission and Reception Point (TRP)

161, 163‧‧‧Transmitter

170‧‧‧Wireless network

180, 190, 198‧‧‧ processing

1100‧‧‧Hardware Resources

1104‧‧‧Peripherals

1106‧‧‧Database

1108‧‧‧Internet

1110, 1112, 1114‧‧‧ processor

1120‧‧‧Memory/Storage Device

1130‧‧‧Communication Resources

1140‧‧‧Bus

1150‧‧‧Command

1612, 1632‧‧‧Baseband

1614、1634‧‧‧RF chain

1616‧‧‧RF beamformer

1618‧‧‧ADC/DAC

1631‧‧‧Sub-array

1636‧‧‧Beamformer

1711, 1713‧‧‧TRP beam

1712, 1714, 1716, 1752‧‧‧Link

1722, 1724‧‧‧UE beam

1731, 1733, 1751‧‧‧TRP beam

Fig. 1 shows a user equipment (UE), evolving A high-level overview example of the wireless communication system of Node B (eNB) and Transmission and Reception Point (TRP).

Figure 2 shows a high-level overview example of components used in a UE, eNB, or TRP according to various embodiments.

Figure 3 shows other high-level overview examples of components used in a UE, eNB, or TRP according to various embodiments.

Fig. 4 shows a link between a multi-UE beam of a UE and a multi-TRP beam of a TRP or an eNB in a wireless communication system according to various embodiments.

Figure 5 shows a block diagram of TRP, eNB, and/or UE implementations according to various embodiments.

FIGS. 6-8 illustrate various processes of power control of the link between the UE beam of the UE and the TRP beam of the TRP/eNB in a beamforming system based on a beamforming reference signal (BRS) according to various embodiments.

Figure 9 illustrates an example computer readable medium according to some embodiments.

Figure 10 illustrates a block diagram of TRP, eNB, and/or UE implementations according to various embodiments.

Figure 11 shows hardware resources for TRP, eNB, and/or UE according to or suitable for use with some embodiments.

[Content and Implementation of the Invention]

The following detailed description will refer to the accompanying drawings. The same element numbers may be used in different drawings to identify the same or similar elements. In the following description, for the purpose of illustration rather than limitation, specific details (such as specific structure, architecture, interface, technology, etc.) are shown in order to provide Thorough understanding of various aspects of various embodiments. However, it is obvious to those skilled in the art who benefit from the present invention that various aspects of the various embodiments can be practiced in other examples without these specific details. In some cases, descriptions of well-known devices, circuits, and methods are omitted so that unnecessary details do not obscure the description of various embodiments.

For the purpose of this disclosure, the terms "A/B", "A or B" and "A and/or B" mean (A), (B) or (A and B). For the purpose of this disclosure, the terms "A, B or C" and "A, B and/or C" mean (A), (B), (C), (A and B), (A and C) , (B and C) or (A, B and C).

The description may use the terms "in an embodiment" or "in an embodiment," which may each refer to one or more of the same or different embodiments. In addition, the terms "include", "include", and "have" used in the embodiments of the present invention are synonymous.

As described herein, the term "module" can be used to refer to one or more physical or logical components or elements of the system. In some embodiments, the module may be a separate circuit, while in other embodiments, the module may include a plurality of circuits.

The embodiments herein may be related to power control and resource allocation in wireless communication systems, such as fifth-generation mobile networks, also known as fifth-generation wireless systems, or 5G systems for short. Specifically, the embodiments of this document can be used with wireless communication systems (such as physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), or sounding reference signal (SRS)) that are transmitted in subframes. The transmission power control of the uplink (UL) channel is related.

For example, a wireless communication system may include user equipment (UE), evolved node B (eNB), and transmission and reception points (TRP). The eNB can control one or more TRPs to transmit or receive signals. TRP may be a remote radio head (RRH) controlled by a related eNB or other eNBs. The UE can transmit multiple UE beams, and the TRP can transmit multiple TRP beams. The link may be formed between the TRP beam and the UE beam. The UE may be configured to have a set of links, which may be referred to as a set of effective links of the UE. The beamforming reference signal (BRS) can be transmitted from the TRP of the link of a set of active links for the UE. The eNB may further schedule a set of effective links of the UE for UL transmission. The UE can use the transmission power determined based on the measurement of the BRS, and further based on the additional power control parameters received by the transmission from a layer higher than the physical layer (hereinafter also referred to as "higher layer transmission"), in the eNB scheduled UL data or control signals are transmitted on the link, where the physical layer is a sublayer of layer 1 of the cellular protocol stack. For example, in some embodiments, higher-level signaling of power control parameters may refer to the transmission of power control parameters by a radio resource control (RRC) layer that is a sub-layer of layer 3 of the cellular protocol stack. However, in other embodiments, higher-level communications may refer to other communications from other sub-layers of layer 2 or 3 of the cellular protocol stack, including but not limited to layer 2 sub-layers (e.g., media access control (MAC)) Layer, Radio Link Control (RLC) layer, Packet Data Convergence Protocol (PDCP) layer) or Layer 3 sublayer (for example, non-access stratum (NAS) layer).

More specifically, the UE can obtain the measurement of the BRS for the link of the group of effective links, and derive the path loss value based on the measurement of the BRS. In addition, the UE can further pass the downlink in the serving link of the group of effective links The link (DL) control channel receives the uplink grant for UL transmission from the UE to the TRP connected to the UE over the link. The UE can also determine the transmission power used for UL transmission based on the path loss value, and a plurality of power control parameters obtained from the transmission of the layer higher than the physical layer. In an embodiment, the UL authorization message may include link identification, so that the UE can autonomously select the path loss value of beamforming to determine the transmission power for UL transmission. In an embodiment, the UL grant message may include link identification, so that the UE can select the path loss value of beamforming based on the link identification to determine the transmission power for UL transmission.

In some embodiments, the eNB may periodically send the BRS for the links of the group of active links. The eNB can also use the links of the active link group of the UE to schedule UL data or control signals, and send the BRS associated with the link and an indication of the scheduled link for the UE. The eNB may further determine a plurality of power control parameters, and send signals from a layer higher than the physical layer to the UE for transmitting the plurality of power control parameters. In an embodiment, the eNB can have flexibility in allocating different links to different UEs, so that multiple UEs can share and multiplex on a single beam. For example, the eNB may schedule other links to other UEs to transmit UL data or control, where the other links share the TRP beam for the link of the UE in the same subframe. In addition, in various embodiments, a mechanism for closed-loop adaptation per link, and techniques for interference control and coordination may also be included.

FIG. 1 schematically shows a wireless communication network 150 according to various embodiments. The wireless communication network 150 (hereinafter referred to as "network 150") can be the first The access network of the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) network, such as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN). Alternatively or additionally, the network 150 may be a 5G system at a general carrier frequency or a very high carrier frequency such as the millimeter wave (mmWave) spectrum. The network 150 may include a base station (e.g., eNB 151) configured to communicate wirelessly with a UE (e.g., UE 152). Additionally, the network 150 may also include TRP, such as TRP 153.

The base station and TRP (for example, eNB 151 and TRP 153) can form a coordinated multipoint (CoMP) system with various improved operating parameters in a wireless network. The eNB 151 may be a serving node and may facilitate wireless communication with the UE 152 through coordination with the TRP 153. In the CoMP system, the TRP 153 can be selected from a plurality of nodes (for example, base stations) in the CoMP measurement group. TRP 153 or other additional nodes can be collectively referred to as "coordinating nodes." The eNB can act as a coordinating and serving node at different times. The eNB 151 may include a plurality of antennas 1511 to 1513. Similarly, TRP 153 may include a plurality of antennas 1531 to 1533. One or more of the antennas 1511 to 1533 may be alternately used as transmission or reception antennas. Alternatively or additionally, one or more of the antennas 1511 to 1533 may be a dedicated receiving antenna or a dedicated transmitting antenna. The serving node and the coordinating node may communicate with each other through a wireless connection and/or a wired connection (for example, a high-speed fiber backhaul connection).

The eNB 151 and the TRP 153 may each have roughly the same transmission power capability as the others, or the TRP 153 may have a relatively low transmission power capability. For example, in one embodiment, the eNB 151 may be relatively high power A base station (such as a mega eNB), and the TRP 153 may be a relatively low-power base station (e.g., a pico eNB and/or a femto eNB). TRP may be a remote radio head (RRH) controlled by a related eNB or other eNBs.

The UE 152 may include a plurality of antennas 1522 to 1524 for wireless communication through the network 150. UE 152 may include any suitable number of antennas. In various embodiments, although the scope of the present invention may not be limited in this respect, the UE 152 may include at least as many antennas as several simultaneous spatial layer or stream antennas that the UE 152 receives from the eNB. One or more of the antennas 1522 to 1524 may be alternately used as transmission or reception antennas. Alternatively or additionally, one or more of the antennas 1522 to 1524 may be a dedicated receiving antenna or a dedicated transmitting antenna.

In order to meet the ever-increasing demand for data, the RAT used in the network 150 may involve communication with a very high carrier frequency, such as millimeter wave (mmWave) spectrum, where there are multiple bandwidths. However, at such high frequencies, electromagnetic wave propagation may be poor. In an embodiment, highly directional antenna arrays can be used in both the eNB and the UE to overcome the large path loss due to attenuation caused by wall penetration, leaves, barriers, etc. A highly directional antenna array and a hybrid analog plus digital beamforming architecture can be used at the eNB 151, TRP 153, and UE 152 to overcome the large path loss of electromagnetic wave propagation in high carrier frequencies. For example, multiple antenna sub-arrays that provide sufficient beamforming gain at each of the eNB 151 and the UE 152 may be used. Multiple antenna sub-arrays can give the eNB and UE the ability to form an analog beam for each polarization pair of each antenna sub-array that has the possibility of switching beams across symbols or sub-frames.

Figure 2 shows a transmission having a general hybrid beamformer architecture 161, which may include a plurality of (e.g., N _A) antennas 1611,1613 to 1615, each corresponding to a particular look direction, and is connected to a plurality (e.g. N _R ) RF beamformer 1616. The transmitter 161 with a general hybrid beamforming architecture can be used in the eNB 151, the TRP 153 or the UE 152 shown in FIG. 1, and is used for high carrier frequency applications such as mmWave spectrum. The antennas 1611, 1613 to 1615 and the RF beamformer 1616 can form multiple analog beams together. In an embodiment, multiple beamforming may be used because the transmission/reception of beamforming may use a separate beamformer for the link between TRP 153 and UE 152. Through ADC/DAC 1618, the digital signal from baseband 1612 can be converted into analog signal (processed by RF chain 1614 including amplifier), and further processed by RF beamformer 1616 for UL transmission to support single user/multiple Multiple input and multiple output (SU/MU-MIMO) and diversity transmission/reception for each user. Alternatively, the transmitter 161 with a general hybrid beamforming architecture can be used as a transmitter in an eNB (for example, the eNB 151) to transmit beamforming reference signals (BRS) or other signals to the UE.

Because the transmitter 161 with a general hybrid beamforming architecture can operate at a very high carrier frequency (such as mmWave spectrum), the ADC/DAC 1618 with a large bandwidth operating at a high sampling rate can be used to support a highly directional antenna array 1611 to 1615. However, the ADC/DAC 1618 may be inefficient in terms of power loss. The embodiments herein will use a general hybrid beamforming architecture to present the transmission power control mechanism for the transmitter 161 to improve the efficiency of the DAC and ADC.

FIG. 3 shows in more detail a transmitter 163 with a hybrid beamforming architecture, with four sub-arrays 1631 of 4×4 cross-polarized (x-pol) elements at the eNB, such as the eNB 151 of FIG. 1. Baseband signals can be received from a total of eight (4 x-pol) beamforming ports at any given time. In an embodiment, the selected beamformer in the analog domain may be highly spatially selective, and may be applied to one (or at most several) UEs in the system. In an embodiment, four beamformers 1636 may be coupled with four sub-arrays 1631. The digital signal from the baseband 1632 can be converted into an analog signal and processed by eight RF chains 1634 including power amplifiers and ADC/DAC (not shown), and further processed by four beamformers 1636. Then, the signals from the four beamformers 1636 are ready to be transmitted by the four sub-arrays 1631 for UL transmission to support single-user/multi-user multiple input and multiple output (SU/MU-MIMO) and diversity transmission/reception .

FIG. 4 shows the link between the multiple UE beams of UEs and the multiple TRP beams of TRPs in the wireless network 170 according to various embodiments. TRPs (eg, TRP A, TRP B, and TRP C) may belong to (or be otherwise associated with) the same or different eNBs. TRP (for example, TRP A, TRP B, and TRP C) may be TRP 153 in FIG. 1, and UE (for example, UE 1, UE 2, or UE 3) may be UE 152 in FIG.

In an embodiment, the UE may include multiple UE beams, and the TRP may include multiple TRP beams. For example, UE 1 may have UE beam 1722 and UE beam 1724, UE 2 may have UE beam 1742 and UE beam 1744, and UE 3 may have UE beam 1762. Similarly, TRP A can have TRP beam 1711 and TRP beam 1713, TRP B can There are TRP beam 1731 and TRP beam 1733, and TRP C may have TRP beam 1751. In addition, UE beams and TRP beams can be numbered. For example, the UE beam 1722 of UE 1 may be the #1 beam of UE 1, and the TRP beam 1713 may be the #2 beam of TRP A.

In an embodiment, the link may be formed by a combination of TRP beam and UE beam. For example, TRP beam 1713 and UE beam 1742 may form link 1714, TRP beam 1713 and UE beam 1762 may form link 1716, and TRP beam 1711 and UE beam 1722 may form link 1712. More links can be formed in a similar way. In an embodiment, the link may be identified by link identification (ID) or more simply by beam ID or link ID. Figure 4 shows several links, including, for example, links 1712, 1714, 1716, and 1752. In the embodiment, the link can also be described as {(TRP#, beam#)-(UE#, beam#)}. For example, the link 1714 may be described as {(TRP A, beam 2)-(UE 2, beam 2)}.

In the embodiment, the UE may be configured with a set of effective links, also referred to as an effective link set. More specifically, the UE (for example, UE 1 of the network 170) may have a set of possible links connecting the UE beam of the UE with the TRP beam of the TRP in the network 170. The UE can be configured on a subset of the links of the possible link set to transmit UL data and/or control signals. The subset of links used for the configuration of the UE may be referred to as a set of effective links, a plurality of effective links, or an effective link group. When the UE is configured with an effective link group with more than one link, the UE may be able to receive (DL) and transmit (UL) multiple beams at the same time, thereby enabling SU-MIMO, multi-point coordination (MIMO/CoMP mode) or Transmission on multiple component carriers. Additionally or alternatively, you can The concept of a set of effective links is applied in the non-CoMP mode. In a non-CoMP mode embodiment, a set of effective links may be one link used by the UE for transmission.

For example, as shown in Figure 4, the UE may have a set of active links. More specifically, UE 1 may have a set of effective links: {(TRP A, beam 1)-(UE 1, beam 1); (TRP A, beam 2)-(UE 1, beam 2); and (TRP B, beam 1)-(UE 1, beam 2)}. Similarly, UE 2 may have a set of effective links: {(TRP A, beam 2)-(UE 2, beam 2); and (TRP C, beam 1)-(UE 2, beam 1)}, and UE 3 may have a set of effective links: {TRP B, beam 2)-(UE 3, beam 1)}. The effective link set may be a subset of links that the UE may have. For example, UE 2 may have a set of effective links {(TRP A, beam 2)-(UE 2, beam 2), (TRP C, beam 1)-(UE 2, beam 1)}, and may have Configure and include additional links {(TRP B, beam 2)-(UE 2, beam 2)} in a set of active links for UE 2, as shown by the dashed line. Similarly, the links 1752 and 1716 shown in dashed lines may not be configured and active.

In an embodiment, when the UE is used to transmit UL data or control information from the UE to the TRP, the link of a set of valid links of the UE may be referred to as a serving UL link. Similarly, the serving DL link may be a link of a set of effective links used to send DL data or control information from the TRP to the UE.

In an embodiment, the new RAT used for the wireless system in the mmWave spectrum may be referred to as xRAT, where x refers to new. Similarly, various channels in various layers used for xRAT data or control signal transmission can also be used It is called "x". For example, the UL PHY data channel called physical uplink shared channel (xPUSCH) and physical uplink control channel (xPUCCH) that can be transmitted in subframes is called physical downlink control channel (xPDCCH). DL control channel, and sounding reference signal called xSRS. In an embodiment, sometimes, channels such as PUSCH, PUCCH, PDCCH, and SRS may be referred to as xPUSCH, xPUCCH, xPDCCH, and xSRS, respectively.

The hybrid analogs used for xRAT plus digital beamforming architectures (such as those shown in Figure 2-3) can be presented between the UE and TRP in terms of resource allocation, multi-user scheduling/multiplexing, and transmission power control. A set of design constraints on L1/L2/L3 of the link. For example, on UL, traffic can be composed of short packets, TCP ACK, L1/L2 uplink control information (UCI), buffer status report, power headroom report, beam-specific reference signal received power (RSRP) or B-RSRP Wait for the leading. In an embodiment, the UE may have limited buffering. In addition, the UE at the edge of the cell may be power limited, and it may not be feasible to "fill the pipeline" with a single or several quotas. The embodiments herein can be presented to support multiple simultaneous user scheduling on UL to achieve improved system spectrum efficiency and increase power efficiency to send a relatively large amount of L1/L2/L3 control information on UL to meet DL data-intensive Applied mechanism.

In an embodiment, TRP (for example, TRP A, TRP B, or TRP C) may be periodically determined to transmit BRS as a link of a set of valid links of the UE. For example, the BRS may be transmitted every 5 ms (or every N ms, where N may be a positive integer). In an embodiment, BRS may be used for UE measurement beam index Explain the mechanism of RSRP to report to eNB. In an embodiment, the BRS can be used to track the UE and provide improved beamforming gain.

In an embodiment, the TRP (for example, TRP A, TRP B, or TRP C) can schedule a group of effective links as a serving UL link for the UE to transmit uplink UL data or control signals. For example, the TRP scheduler can dynamically schedule links from a set of active links of the UE. Such a dynamically scheduled link can allow the TRP or eNB scheduler to flexibly multiplex more users at the same time. For example, two UEs sharing the same TRP receiving beam in the effective link group of the UE can be scheduled at the same time. In other words, TRP can schedule the link used for UE to transmit UL, and then schedule to another link of another UE for another UE to transmit UL, where the other link is in the same subframe Share the TRP beam of the link. The selection of the scheduling link of the effective link set of the UE can be performed by the uplink authorization message, and the uplink authorization message can be transmitted through the DL control channel in the service link.

In an embodiment, the above-mentioned flexible scheduling of multiple links for multiple UEs may also lead to ambiguity regarding the path loss value used by the UE in the power control process. To resolve this ambiguity, the scheduler can schedule two UEs at the same time on any given subframe, as long as the scheduler indicates to the two UEs which corresponding link they can activate for their UL transmissions. Then, the UE can use the path loss value corresponding to the specific link in the power control setting.

In an embodiment, TRP (for example, TRP A, TRP B, or TRP C) can determine a plurality of power control parameters, and the power control parameters can be related to the Links in the effective link set are associated. In addition, the TRP can determine the transmission from a layer higher than the physical layer to transmit multiple power control parameters to the UE.

The power control parameters may include a _{{P O_PUSCH (j), χ} }, which will be described in detail in the subsequent paragraphs. The UE may be configured with multiple sets of power control parameters, and each power control parameter is associated with a link of the set of effective links. Dynamic signaling using Downlink Control Information (DCI) can be used to select a specific power control parameter set. The UE may use the selected power control parameter set to determine the transmission power of the uplink transmission. In an embodiment, the UE may maintain a separate accumulation process for each group of power control parameters. The UE can also maintain path loss value information corresponding to each link associated with a set of power control parameters.

In addition, in an embodiment, the TRP may receive the report of the measurement of the BRS by the UE used for the link of the plurality of active links. TRP can receive the signal from the UE, wherein the transmission power determined based on the path loss value derived from the measurement of the BRS of the serving link can be used to transmit the signal. The signal can be received on the PUSCH, PUCCH or SRS sent in the subframe.

In an embodiment, the UE may monitor its UE beam from each TRP to receive the BRS of each link in the effective link set of the UE. The UE can obtain the BRS measurement value for each link in the effective link set of the UE, such as RSRP or B-RSRP. After that, the UE may report the BRS measurement of each link in the effective link set of the UE to the eNB or TRP. For example, the UE may report some (e.g., the first four) B-RSRP combinations to its serving eNB. The reported BRS can be configured via eNB signaling, or The UE can determine the reported B-RSRP combination set based on the threshold configured by the higher layer.

The UE can further derive the path loss value PL or simply referred to as path loss from the measurement of the BRS of each link in the effective link set of the UE. The path loss value may correspond to an estimate of the path loss of the downlink beamforming. In an embodiment, the UE may use the path loss value PL to determine the transmission power for uplink power control. In addition, the UE may calculate a power headroom report (PHR) based on the path loss value; and report the PHR to the eNB.

In the embodiment, the path loss value of the link (labeled PL(i,j)-(k,l) ) can refer to the beam measured from the BRS of the corresponding TRP i beam j and UE k beam l Shaped path loss value. In an embodiment, the UE may use the PL set to indicate the total information of the beamforming multi-cell system from the perspective of the UE. For example, the set of PL can be shown in Table 1 below:

In more detail, each of PL(i,j)-(k,l) in Table 1 can be used corresponding to BRS- which is transmitted by a downlink control information message such as the DCI format corresponding to the UL authorization. ID’s BRS is calculated. For example, PL can be calculated as: PL = reference beam signal power (referenceBeamSignalPower)-higher-layer filtered B-RSRP, where the reference beam signal power can be a value provided by a higher layer, such as a layer higher than the physical layer, B-RSRP It may be the measurement for the link obtained by the UE from the BRS signal, which may be further filtered by the parameters from the higher layer to obtain the B-RSRP filtered by the higher layer.

The UE can also receive an uplink grant for UL transmission from the UE through the DL control channel in the service link. The uplink grant may also include an associated power control identifier for identifying power control parameters for UL transmission.

The UE may further determine the transmission power for UL transmission based on the path loss value and the associated power control identifier. In an embodiment, the transmission power may be based on a plurality of power control parameters received from TRP or eNB via messaging from a layer higher than the physical layer. More details of a plurality of power control parameters can be presented in subsequent parts of the invention.

In the case of multi-component carrier or multi-beam transmission, the UE can scale the transmission power determined by the above process so that the total transmission power of multiple beam transmission does not exceed the allowable uplink transmission power determined by the UE or eNB. In the embodiment, the UE can determine the transmission power of the PUSCH, the transmission power of the PUCCH, and the transmission power of the SRS transmitted in the subframe; obtain the sum of the transmission power of the PUSCH, the transmission power of the PUCCH, and the transmission power of the SRS. When the sum of PUSCH transmission power, PUCCH transmission power and SRS transmission power exceeds the uplink transmission allowed by the UE The UE can scale the transmission power for PUSCH, PUCCH and SRS by a single scaling value, so that the scaled transmission power of PUSCH, the scaled transmission power of PUCCH and the transmission power of SRS The sum of the scaled transmission power does not exceed the uplink transmission power allowed by the UE. Furthermore, the UE may transmit signals based on the scaled transmission power used for PUSCH, PUCCH or SRS.

The UE may further transmit signals based on the determined transmission power on the link indicated by the UL grant message. The signal may be transmitted by the UE after several sub-frames (for example, 1-3 sub-frames) after receiving the UL grant via the DL control channel. The interval of a few subframes between UL transmissions from the UE can provide enough time for the UE to switch its beam from the serving DL link to the beam used for the scheduled UL link. In an embodiment, the signal can be transmitted by the UE in the same sub-frame as the sub-frame in which the UL authorization is received. In this case, the UE may be able to switch its beam from the serving link to the beam for uplink transmission.

Hereinafter, the power control parameter set including {P _{O_PUSCH} ( j ), χ } for PUSCH, PUCCH or SRS can be described in more detail. The UE can be configured with multiple sets of power control parameters, and each power control parameter is associated with a set of effective links. Dynamic signaling using DCI can be used to select a specific power control parameter set.

The UE power control for xPUSCH can be determined as follows.

I subframe for transmission of the UE transmission power xPUSCH P _PUSCH (i) may be determined as _{follows: P PUSCH (i) = min} {P CMAX, 10log 10 (M PUSCH (i)) + P O_PUSCH (j) + α ( j ). PL + △ _TF ( i ) + f ( i )}; where P _CMAX can be the configured UE transmission power; M _PUSCH ( i ) can be xPUSCH resource allocation represented by the number of effective resource blocks for subframe i Bandwidth; P _{O_PUSCH} ( j ) may be a parameter composed of the sum of the cell-specified nominal component P _{O_NOMINAL_PUSCH} provided by the higher layer and the UE-specified component P _{O_UE_PUSCH provided by the higher layer.} For the PUSCH (re)transmission corresponding to the dynamic scheduling grant, then j=1, and for the PUSCH (re)transmission corresponding to the random access response grant, then j=2. P _{O_UE_PUSCH} (2) = 0 and _{P O_NOMINAL_PUSCH (2) = P O_PRE} + △ PREAMBLE_Msg 3, wherein the parameter _(P O_PRE) and _△ PREAMBLE_Msg ₃ from the higher layer messaging.

{0,0.4,0.5,0.6,0.7,0.8,0.9,1}。對於j=2。α(j)=1。 For j=1, α ( j )

{0,0.4,0.5,0.6,0.7,0.8,0.9,1}. For j=2. α(j) =1.

P _{O_PUSCH} (1) and α (j) can be selected from a set 16 specified values configured by a higher layer of the UE. For P _{O_PUSCH} (1), and α may be selected to correspond to the summoned by UL grant DCI format.

對於K _S =1.25以及0對於K _S =0，其中K _S 由更高層提供的UE指明參數增量(delta)MCS允許給出。更多細節如下所示：MPR=O _CQI /N _RE 對於經由沒有上行鏈路共享通道(UL-SCH)資料的xPUSCH發送的控制資料以及

對於其它情況，其中C為代碼方塊之數目，K _r 為代碼方塊r的大小，O _CQI 為包括循環冗餘核對(Cyclic Redundancy Check；CRC)位元之通道品質指示符(Channel Quality Indicator；CQI)位元之數目以及N _RE為判定為

的資源元素之數目，其中C、K _r 、

以及

。

用於通過xPUSCH發送的無UL-SCH資料的控制資料，其他情況下為1。

For K _S =1.25 and 0 for K _S =0, where K _S is specified by the UE provided by the higher layer, the parameter delta (delta) MCS is allowed to be given. More details are as follows: MPR = O _CQI / N _RE for control data sent via xPUSCH without uplink shared channel (UL-SCH) data and

For other cases, C is the number of code blocks, K _r is the size of code block r , O _CQI is a channel quality indicator (CQI) including Cyclic Redundancy Check (CRC) bits The number of bits and N _RE are judged to be

The number of resource elements, where C , K _r ,

as well as

.

It is used for control data without UL-SCH data sent via xPUSCH, and it is 1 in other cases.

δ _PUSCH is a UE-specified correction value, also called a transmit power control (TPC) command, and is included in the xPDCCH of the DCI format corresponding to the UL grant format of the UL grant. The current xPUSCH power control adjustment state can be given by f ( i ), which is defined by the following formula:

f ( i ) = f ( i -1) + δ _PUSCH ( i - K _PUSCH ), if the accumulation is allowed based on the parameter accumulation allowed by the UE specified by the higher layer, where δ _PUSCH ( i - K _PUSCH ) can be Corresponding to the xPDCCH upload signal of the UL authorized DCI format on the subframe i - K _PUSCH , and where f (0) is the first value after reset accumulation. K _PUSCH is the number of subframes between the reception of the DCI format and the corresponding xPUSCH transmission. The _{cumulative value of δ PUSCH} dB can be transmitted on the xPDCCH corresponding to the UL authorized DCI format.

If the UE reaches the maximum power, it may not accumulate positive TPC commands. If the UE reaches the minimum power, it may not accumulate negative TPC commands.

When P _{O_UE_PUSCH} value changes by a higher layer, and when the UE has received a random access response message, UE can reset the accumulation.

The UE may maintain a separate f(i) accumulation process corresponding to different BRS-IDs received as part of the xPDCCH DCI format corresponding to the UL grant.

The UE can maintain a maximum of N different f(i) accumulation processes.

f ( i ) = δ _PUSCH ( i - K _PUSCH ), if accumulation is not allowed based on the parameter accumulation allowed by the UE specified by the higher layer, where: δ _PUSCH ( i - K _PUSCH ) means that there is a corresponding signal Frame iK _PUSCH on the UL authorized DCI format xPDCCH upload; and K _PUSCH is the number of sub-frames between the reception of the UL authorized DCI format and the corresponding xPUSCH transmission.

The absolute value of δ _PUSCH dB transmitted on the PDCCH with the DCI format corresponding to the UL authorization can be given in Table 1.

f ( i ) = f ( i -1) is used for sub-frames, where no xPDCCH corresponding to the DCI format of the UL grant is decoded or DRX occurs, or i is not an uplink sub-frame in TDD. For both types f (*) (accumulation or current absolute) the first value is set as follows: If P _{O_UE_PUSCH} value is changed from the higher layers, then f (i) = 0; otherwise, for the initial random The first subframe after access, f(0)=0.

UE power control for physical uplink control channel (xPUCCH)

The setting of UE transmission power P _PUCCH used for physical uplink control channel (xPUCCH) transmission on subframe i can be defined by the following formula: P _PUCCH ( i )=min{ P _CMAX , P _{O_PUCCH} + χ . PL + h ( n _CQI , n _BI , n _HARQ , n _SR )+△ _{F_PUCCH} ( F )+ g ( i ))

Wherein P _CMAX can be the configured UE transmission power; the parameter △ _{F_PUCCH} ( F ) can be provided by higher layers. Each _{value of ΔF_PUCCH} ( F ) may correspond to the PUCCH format (F) corresponding to the PUCCH format of the DL grant. h ( n ) may be a value related to the xPUCCH format, where n _{CQI is} the number of information bits corresponding to channel quality information and n _HARQ is the number of HARQ bits.

For the PUCCH format corresponding to the DL grant, 1a and 1b h ( n _CQI , n _BI , n _HARQ , n _SR )=0. For PUCCH format 2,

；否則

。對於PUCCH格式3，以及當UE與CSI或BI一起傳輸HARQ-ACK/SR時，如果UE由更高層配置以在兩天線埠上傳輸PUCCH格式3，或者如 果UE傳輸超過11位元的HARQ-ACK/SR和CSI

；否則

For PUCCH format 3, and when the UE transmits HARQ acknowledgment/scheduling request (HARQ-ACK/SR) without channel status information or beam information (CSI or BI), if the UE is configured by a higher layer to operate on two antennas PUCCH format 3 is transmitted on the port, or if the UE sends HARQ-ACK/SR with more than 11 bits

;otherwise

. For PUCCH format 3, and when the UE transmits HARQ-ACK/SR together with CSI or BI, if the UE is configured by a higher layer to transmit PUCCH format 3 on two antenna ports, or if the UE transmits HARQ-ACK with more than 11 bits /SR and CSI

;otherwise

P _{O_PUCCH} is specified and UE-specific parameter P _{O_NOMINAL_PUCCH} P _{O_UE_PUCCH} assembly provided by the higher layer and consisting of cell parameters provided by higher layers. P _{O_PUCCH} and χ may be selected from a set of 16 values configured by a higher layer of the UE specified. For P _{O_PUCCH} and χ corresponding to the DL by the selection of the corresponding DL grant authorization to the DCI format or DCI scheduled periodic communications UCI report.

δ _PUCCH indicates the correction value (also called TPC command) for the UE, which is included in the PDCCH with the DCI format corresponding to the DL grant. If the UE decodes the PDCCH with the DCI format corresponding to the DL grant and the corresponding detected radio network temporary identifier (RNTI) is equal to the UE's C-RNTI, the UE can use the δ _PUCCH provided in the PDCCH.

，其中g(i)為當前PUCCH功率控制調整狀態。δ _PUCCH dB值可以在相應於DL授權之DCI格式的PDCCH上傳訊。g(i)之初始值可被定義為P _{O_UE_PUCCH}值，其有更高層g(i)=0改變。UE可以保持相應於作為相應於DL授權的xPDCCH DCI格式的一部分而接收的不同BRS-ID的單獨的g(i)累積過程。UE可以保持最大N組不同的g(i)累積過程。

, Where g ( i ) is the current PUCCH power control adjustment state. The δ _PUCCH dB value can be transmitted on the PDCCH corresponding to the DCI format of the DL authorization. g (i) of the initial value can be defined as P _{O_UE_PUCCH} value, it has a higher level g (i) = 0 changes. The UE may maintain a separate g(i) accumulation process corresponding to different BRS-IDs received as part of the xPDCCH DCI format corresponding to the DL grant. The UE can maintain a maximum of N different sets of g(i) accumulation procedures.

If the UE reaches the maximum power, it may not accumulate positive TPC commands. If the UE reaches the minimum power, it may not accumulate negative TPC commands. When entering / leaving RRC active state, when the P _{O_UE_PUCCH} value changes by a higher layer, when the UE receives the random access response g (i) = when the g (i -1) (if i is not an uplink subframe), The UE can reset the accumulation when the cell changes.

UE power control for sounding reference symbol (x SRS)

For the subframe i UE transmission power of the sounding reference symbol P _SRS transmission of the set defined by the _{formula: P SRS (i) = min} {P CMAX, P SRS_OFFSET + 10log 10 (M SRS) + P O_PUSCH ( j )+ α ( j ). PL + f ( i )}[dBm], where P _CMAX is the configured UE transmission power.

For K _S =1.25, P _{SRS_OFFSET} is configured semi-statically by a higher layer and specified by a 4-bit UE with a step size of 1 dB in the range [-3, 12] dB. For K _S =0, P _{SRS_OFFSET} is configured semi-statically by a higher layer with a 4-bit UE specification parameter with a 1.5 dB step size in the range [-10.5, 12] dB.

M _SRS is the bandwidth of SRS transmission in subframe i expressed by the number of resource blocks.

f ( i ) is the current power control adjustment state of the xPUSCH corresponding to the set index transmitted in the xSRS scheduling grant.

P _{O_PUSCH} ( j ) and α ( j ) are parameters, where j =1, which corresponds to the set index transmitted in the xSRS scheduling authorization.

UE power margin

定義。 The effective UE power margin PH for subframe i is determined by

definition.

The power margin can be rounded to the nearest value in the range [40; -23]dB, in steps of 1dB, delivered by the physical layer to the higher layer.

Downlink power allocation

Downlink power control determines the energy (EPRE) of each resource element. The term resource element energy refers to the energy before CP insertion. The term resource element energy also refers to the average energy of all cluster points of the applied modulation scheme. The uplink power control determines the average power of the OFDM symbol in which the physical channel is transmitted.

If the RS specified by the UE exists in the PRB corresponding to the PDSCH mapping on it, the ratio of the PDSCH EPRE in each OFDM symbol containing the RS specified by the UE to the RS EPRE specified by the UE can be a constant. And the constant can be maintained on all OFDM symbols including the RS specified by the UE in the corresponding PRB. In addition, the UE may assume that the ratio is 0 dB for 16QAM or 64QAM.

eNB relatively narrow-band TX power limit

The determination of the reported relative narrowband TX power indicator RNTP ( n _PRB ) is defined as follows:

；RNTP _threshold 採用以下值RNTP _threshold

{-∞,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,+1,+2,+3}[dB]之一，以及

Where E _A ( n _PRB ) is the maximum expected EPRE of the xPDSCH RE specified by the UE in the OFDM symbol that does not contain RS in this physical resource block on antenna port p in the considered future time interval; n _PRB is the physical resource block Number n _PRB =0,...,

; RNTP _threshold adopts the following value RNTP _threshold

{-∞,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,+1,+2,+3}[dB ] One, and

為基地站最大輸出功率。 among them

It is the maximum output power of the base station.

The embodiments described herein can be implemented in a system using any suitably configured hardware and/or software. Figure 5 shows (for one embodiment) exemplary components of the electronic device 100. In an embodiment, the electronic device 100 can be, can be implemented in, integrated into, or otherwise be the UE, TRP described herein Or a part of an eNB, such as UE 152, TRP 153 or eNB 151 in FIG. 1 or UE 1, TRP A in FIG. 4. In some embodiments, the electronic device 100 may include at least an application circuit 102, a baseband circuit 104, a radio frequency (RF) circuit 106, a front-end module (FEM) circuit 108, and one or more antennas 110 coupled together as shown in the figure. .

As used herein, the term "circuit" can refer to, be partial, or include: application-specific integrated circuits (ASIC), electronic circuits, processors (shared, dedicated, or grouped), and/or execution Memory (shared, dedicated or grouped) of one or more software or firmware programs, combinational logic circuits, and/or other suitable hardware components that provide the described functions. In some embodiments, the circuit may be implemented in one or more software or firmware modules, or the functions associated with the circuit may be implemented in one or more software or firmware modules. In some embodiments, the circuit may include logic that is at least partially operable in hardware.

The application circuit 102 may include one or more application processors. For example, the application circuit 102 may include circuits such as, but not limited to, one or more single-core or multi-core processors. The processor may include any combination of general-purpose processors and special-purpose processors (eg, graphics processors, application processors, etc.). The processor may be coupled with memory/storage and/or may include memory/storage, and may be configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems to run on the system.

The baseband circuit 104 may include circuits such as, but not limited to, one or more single-core or multi-core processors. The baseband circuit 104 may include a signal path for processing reception from the RF circuit 106 and for generating RF power. One or more baseband processors and/or control logic of the baseband signal of the transmission signal path of the path 106. The baseband processing circuit 104 can be connected to an application circuit 102 for generating and processing baseband signals and for controlling operations of the RF circuit 106. For example, in some embodiments, the baseband circuit 104 may include a second-generation (2G) baseband processor 104a, a third-generation (3G) baseband processor 104b, a fourth-generation (4G) baseband processor 104c, and/or Other baseband processors 104d of other existing generations or developing generations or generations to be developed in the future (for example, fifth generation (5G), 6G, etc.). The baseband circuit 104 (eg, one or more baseband processors 104a-d) can handle various radio control functions, which can communicate with one or more radio networks via the RF circuit 106. Radio control functions can include but are not limited to signal modulation/demodulation, encoding/decoding, radio frequency shifting, and so on. In some embodiments, the modulation/demodulation circuit of the baseband circuit 104 may include fast Fourier transform (FFT), precoding, and/or cluster mapping/demapping functions. In some embodiments, the encoding/decoding circuit of the baseband circuit 104 may include convolution, tail-biting convolution, acceleration, Viterbi, and/or low density parity check (Low Density Parity). Check; LDPC) encoder/decoder function. The embodiments of modulation/demodulation and encoder/decoder functions are not limited to these examples and may include other suitable functions in other embodiments.

In some embodiments, the baseband circuit 104 may include protocol stacking elements, such as, for example, elements of the Evolved Universal Terrestrial Radio Access Network (EUTRAN) protocol, including, for example, physical (PHY), medium access control (MAC), Radio link control (RLC), packet data aggregation protocol (PDCP) and/or Radio Resource Control (RRC) elements. The central processing unit (CPU) 104e of the baseband circuit 104 can be configured to run protocol stacking elements for PHY, MAC, RLC, PDCP, and/or RRC layer messaging. In some embodiments, the baseband circuit may include one or more audio digital signal processors (DSP) 104f. The audio DSP 104f may include components for compression/decompression and echo cancellation and may include other suitable processing components in other embodiments.

The baseband circuit 104 may further include memory/storage 104g. The memory/storage 104g can be used to load and store data and/or instructions for operations performed by the processor of the baseband circuit 104. The memory/storage for an embodiment may include any combination of suitable volatile memory and/or non-volatile memory. The memory/storage 104g may include any combination of various levels of memory/storage, including but not limited to read-only memory (ROM) with embedded software commands (for example, firmware), random access memory (for example, Dynamic Random Access Memory (DRAM)), cache, buffer, etc. The memory/storage 104g can be shared among various processors or dedicated to a specific processor.

The components of the baseband circuit can be suitably combined in a single chip, a single chip group, or in some embodiments are arranged on the same circuit board. In some embodiments, some or all of the components of the baseband circuit 104 and the application circuit 102 may be implemented together on, for example, a system-on-chip (SOC).

In some embodiments, the baseband circuit 104 may provide communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuit 104 can support and Evolve Universal Terrestrial Radio Access Network (EUTRAN) and/ Or other wireless metropolitan area networks (WMAN), wireless local area network (WLAN), wireless personal area network (wireless personal area network; WPAN) communications. For the embodiment in which the baseband circuit 104 is configured to support radio communication of more than one wireless protocol, please refer to the multi-mode baseband circuit.

The RF circuit 106 can communicate with a wireless network by using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuit 106 may include switches, filters, amplifiers, etc. to facilitate communication with wireless networks. The RF circuit 106 may include a receiving signal path, which may include a circuit for down-converting the RF signal received from the FEM circuit 108 and providing a baseband signal to the baseband circuit 104. The RF circuit 106 may also include a transmission signal path, which may include a circuit for up-converting the baseband signal provided by the baseband circuit 104 and providing an RF output signal to the FEM circuit 108 for transmission.

In some embodiments, the RF circuit 106 may include a receiving signal path and a transmission signal path. The receiving signal path of the RF circuit 106 may include a mixer circuit 106a, an amplifier circuit 106b, and a filter circuit 106c. The transmission signal path of the RF circuit 106 may include a filter circuit 106c and a mixer circuit 106a. The RF circuit 106 may also include a synthesizer circuit 106d for synthesizing a frequency for use by the mixer circuit 106a of the receiving signal path and the transmitting signal path. In some embodiments, the mixer circuit 106a of the receive signal path may be configured to down-convert the RF signal received from the FEM circuit 108 based on the synthesized frequency provided by the synthesizer circuit 106d. The amplifier circuit 106b can be configured to amplify the down-converted signal and the filter circuit 106c can be a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signal to generate an output baseband signal . The output baseband signal can be provided to the baseband circuit 104 for further processing. In some embodiments, the output baseband signal may be a zero-frequency baseband signal, although this is not necessary. In some embodiments, the mixer circuit 106a of the receiving signal path may include a passive mixer, although the scope of the embodiment is not limited thereto.

In some embodiments, the mixer circuit 106a of the transmission signal path can be configured to up-convert the input baseband signal based on the synthesized frequency provided by the synthesizer circuit 106d to generate the RF output signal for the FEM circuit 108. The baseband signal may be provided by the baseband circuit 104 and may be filtered by the filter circuit 106c. The filter circuit 106c may include a low-pass filter (LPF), although the scope of the embodiment is not limited thereto.

In some embodiments, the mixer circuit 106a of the receiving signal path and the mixer circuit 106a of the transmission signal path may include two or more mixers, and they may be configured for quadrature down conversion and/or up conversion, respectively. Conversion. In some embodiments, the mixer circuit 106a of the receiving signal path and the mixer circuit 106a of the transmitting signal path may include two or more mixers, and may be configured for image rejection (for example, Hartley image rejection (Hartley image rejection)). rejection)). In some embodiments, the mixer circuit 106a and the mixer circuit 106a of the receiving signal path can be configured for direct down conversion and/or direct up conversion, respectively. In some embodiments, the mixer circuit 106a of the receiving signal path and the mixer circuit 106a of the transmitting signal path can be configured for superheterodyne operation.

In some embodiments, the output baseband signal and the input baseband signal may be analog baseband signals, although the scope of the embodiments is not limited thereto. In some alternative embodiments, the output baseband signal and the input baseband signal may be digital baseband signals. In these alternative embodiments, the RF circuit 106 may include ADC and DAC circuits and the baseband circuit 104 may include a digital baseband interface to communicate with the RF circuit 106.

In some dual-mode embodiments, separate radio IC circuits can provide processing signals for each frequency spectrum, although the scope of the embodiments is not limited to this.

In some embodiments, the synthesizer circuit 106d may be a fractional-N synthesizer or a fractional N/N+1 synthesizer, although the scope of the embodiment is not Limited, because other types of frequency synthesizers may be appropriate. For example, the synthesizer circuit 106d can be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer including a phase-locked loop and a frequency divider (frequency divider).

The synthesizer circuit 106d can be configured to synthesize an output frequency based on the frequency output and the divider control input for use by the mixer circuit 106a of the RF circuit 106. In some embodiments, the synthesizer circuit 106d may be a fractional N/N+1 synthesizer.

In some embodiments, the frequency input can be provided by a voltage controlled oscillator (VCO) (which is not required). The divider control input can be provided by the baseband circuit 104 or the application processor 102 based on the desired output frequency. In some embodiments, the divider control input (e.g., N) may be based on the value indicated by the application processor 102 The channel is determined from the lookup table.

The synthesizer circuit 106d of the RF circuit 106 may include a divider, a delay-locked loop (DLL), a multiplexer, and a phase accumulator. In some embodiments, the divider may be a dual modulus divider (DMD), and the phase accumulator may be a digital phase accumulator (DPA). In some embodiments, the DMD can be configured to divide the input signal by N or N+1 (eg, based on carry) to provide a fractional division ratio. In some exemplary embodiments, the DLL may include a series of adjustable, delay elements, phase detectors, charge pumps, and D-type flip-flops. In these embodiments, the delay element can be configured to break the VCO period into Nd phases of the same packet, where Nd is the number of delay elements in the delay line. In this way, the DLL provides negative feedback to help ensure that the total delay of the entire delay line is one VCO cycle.

In some embodiments, the synthesizer circuit 106d may be configured to generate a carrier frequency as the output frequency, while in other embodiments, the output frequency may be a multiple of the carrier frequency (for example, twice the carrier frequency, four times the carrier frequency) and The quadrature generator and divider circuit are used together to generate multiple signals having multiple different phases with respect to each other at the carrier frequency. In some embodiments, the output frequency may be the LO frequency (fLO). In some embodiments, the RF circuit 106 may include an IQ/pole converter.

The FEM circuit 108 may include a received signal path, which may include configured to operate on the RF signal received from one or more antennas 110, amplify the received signal, and provide an amplified version of the received signal to the RF circuit 106. Circuit for further processing. The FEM circuit 108 may also include a transmission signal path, which may include a circuit configured to amplify the signal for transmission provided by the RF circuit 106 for transmission by one or more of the one or more antennas 110.

In some embodiments, the FEM circuit 108 may include a TX/RX switch to switch between transmission mode and reception mode operation. The FEM circuit may include a receiving signal path and a transmission signal path. The receiving signal path of the FEM circuit may include a low-noise amplifier (LNA) for amplifying the received RF signal and providing the amplified received RF signal as an output (for example, to the RF circuit 106). The transmission signal path of the FEM circuit 108 may include a power amplifier (PA) for amplifying the input RF signal (for example, provided by the RF circuit 106) and for generating an RF signal for subsequent transmission (for example, by one or more antennas 110). One or more of) one or more filters.

In some embodiments, the electronic device 100 may include additional components, such as memory/storage, display, camera, sensor, and/or input/output (I/O) interface.

In embodiments where the electronic device 100 is, implemented in, integrated into, or otherwise part of a UE (such as UE 152 in FIG. 1 or UE 1 in FIG. 4), the RF circuit 106 may receive one or more A signal, such as a BRS signal. The baseband circuit 104 can obtain the measurement of the BRS for a group of effective links, derive the path loss value based on the measurement of the BRS, determine the uplink authorization from the UE to the TRP uplink (UL) transmission, and The path loss value determines the transmission power used for UL transmission. The RF circuit 106 can use the determined transmission power for UL transmission to Further transmit the signal.

In embodiments where the electronic device 100 is, implemented in, integrated into, or otherwise part of a UE (such as UE 152 in FIG. 1 or UE 1 in FIG. 4), the RF circuit 106 may receive one or more A signal, such as a BRS signal. In addition, the RF circuit 106 can use the transmission power determined by the baseband circuit 104 to transmit signals. The baseband circuit 104 can obtain a plurality of power control parameters through the transmission from a layer higher than the physical layer. The power control parameters can be associated with a plurality of effective links to determine the UL transmission from the UE to the TRP. The uplink grant and the associated power control identifier identify the power control parameters of a plurality of power control parameters based on the associated power control identifier, and determine the transmission power based on the identified power control parameters.

In embodiments where the electronic device 100 is, implemented in, integrated into, or otherwise part of a UE (such as UE 152 in FIG. 1 or UE 1 in FIG. 4), the RF circuit 106 may use determined transmission Power transmission signal. The baseband circuit 104 can obtain a plurality of power control parameters through transmission from a layer higher than the physical layer, wherein the power control parameters of the plurality of power control parameters are associated with the links of the plurality of effective links, and the link A TRP beam including a plurality of TRP beams of the TRP and a UE beam of a plurality of UE beams of the UE. In addition, the baseband circuit 104 may determine the uplink grant for UL transmission from the UE to the TRP and the associated power control identifier based on the DL control channel at the physical layer; identify a plurality of powers based on the associated power control identifier The power control parameter of the control parameter; and the transmission power is determined based on the identified power control parameter.

In addition, the baseband circuit 104 can obtain the sum of the transmission power for PUSCH, the transmission power for PUCCH, and the transmission power for SRS transmitted in the subframe; and to scale the PUSCH by a single scaling value. Transmission power, PUCCH transmission power, and SRS transmission power, where the sum of the scaled transmission power of PUSCH, the scaled transmission power of PUCCH, and the scaled transmission power of SRS does not exceed the uplink transmission power allowed by the UE.

In addition, the baseband circuit 104 can periodically monitor the BRS of the link for a plurality of active links; obtain the measurement of the BRS for the link; derive the path loss value based on the BRS measurement; and in addition to the identified power control parameters In addition, the transmission power is also determined based on the path loss value. The baseband circuit 104 may further report to the eNB the measurement of the BRS of each of the plurality of effective links; calculate the PHR based on the path loss value; and report the PHR to the eNB.

In an embodiment in which the electronic device 100 is implemented in, integrated in a TRP or eNB, or is another part of the TRP or eNB (such as eNB 151 or TRP 153 in FIG. 1, or TRP A in FIG. 4), the baseband circuit 104 It can be periodically determined as the link transmission BRS of a plurality of effective links, and a plurality of power control parameters are determined, wherein the power control parameters of the plurality of power control parameters are associated with the links of the effective link set, and the UE is scheduled Link to transmit UL.

In some embodiments, the electronic device 100 of FIG. 5 may be configured to perform one or more processes, techniques, and/or methods as described herein, or a part of them. One such process is depicted in Figure 6, which can be used by the UE Performed, such as UE 152 in FIG. 1 or UE 1 in FIG. 4. For example, the process may include: obtaining BRS measurement for a link of a plurality of active links, where the link includes a TRP beam of a plurality of TRP beams of the TRP, and a UE beam of a plurality of UE beams of the UE (181 ); Derive the path loss value based on the measurement of the BRS (183); Determine the uplink grant for UL transmission from the UE to the TRP based on the DL control channel in the serving link of the plurality of active links (185); determine the transmission power for the UL transmission based on the path loss value (187); and transmit the signal based on the determined transmission power (189).

In some embodiments, the electronic device 100 of FIG. 5 may be configured to perform one or more processes, techniques, and/or methods as described herein, or a part of them. One such process is depicted in FIG. 7, which may be performed by a UE, such as UE 152 in FIG. 1 or UE 1 in FIG. For example, the processing may include: obtaining a plurality of power control parameters through transmission from a layer higher than the physical layer, wherein the power control parameters of the plurality of power control parameters are associated with the links of the plurality of effective links, and wherein the link The path includes TRP beams of TRP beams and UE beams of UE beams of UEs (191); based on the DL control channel at the physical layer, the uplink grant for UL transmission from UE to TRP is determined and related The associated power control identifier (193); the power control parameter (195) that identifies a plurality of power control parameters based on the associated power control identifier; determines the transmission power based on the identified power control parameter (197); and uses the determined Transmission power transmission signal (199).

In some embodiments, the electronic device 100 of FIG. 5 may be configured to perform Perform one or more processes, techniques and/or methods as described herein, or a part of them. One such process is depicted in FIG. 8, which may be performed by TRP, such as TRP 153 in FIG. 1 or TRP A in FIG. For example, the processing may include: periodically determining the BRS used for the link of a plurality of valid links, where the link includes the TRP beam of the TRP beam and the UE beam of the UE beam of the UE (192) ; Determine a plurality of power control parameters, where the power control parameters of the plurality of power control parameters are associated with the links of the effective link set (194); and schedule the links for the UE to transmit UL signals (196).

Figure 9 shows an example computer-readable medium 124 that may be adapted to store instructions that cause a device to practice selected aspects of the invention in response to instructions executed by the device. In some embodiments, the computer-readable medium 124 may be non-transitory. As shown in the figure, the computer-readable storage medium 124 may include programming instructions 128. The programming instruction 128 can be configured to respond to the execution of the programming instruction 128 to implement any processing or element (in the form) related to the transmission power control for UL described in the present invention (such as the processing 180 in FIG. 6, FIG. Process 190 in Fig. 7 or process 198 in Fig. 8) to enable a device, such as the electronic device 100 shown in Fig. 5, a UE such as UE 152, a TRP such as TRP 153, or an eNB 151 as shown in Fig. 1 ENB, or UE such as UE 1, UE 2, or UE 3 shown in FIG. 4, or TRP or other devices such as TRP A, TRP B, or TRP C. In some embodiments, the programming instructions 128 may be placed on a computer-readable medium 124 that is transient in nature, such as a signal.

Any combination of one or more computer-usable or computer-readable media can be used. The computer-usable or computer-readable medium may be, for example, but not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, equipment, devices, or propagation media. More specific examples of computer-readable media (non-exhaustive list) will include the following: electrical connections with one or more wires, portable computer disks, hard drives, random access memory (RAM), read-only Memory (ROM), erasable programmable read-only memory (e.g. EPROM, EEPROM or flash memory), optical fiber, compact disc read-only memory (CD-ROM), optical storage device, transmission media (e.g., Those that support the Internet or Intranet) or magnetic storage devices. Note that the computer-usable or computer-readable medium can even be paper or another suitable medium on which the program is printed, because the program can be obtained by electronic means (for example, through optical paper or other media). Scanning), then, if necessary, it is compiled, interpreted or processed in an appropriate manner, and then stored in computer memory. In the context of this document, computer-usable or computer-readable media can be any media that can contain, store, communicate, transmit, or deliver programs for use in or in conjunction with command execution systems, equipment, or devices . The computer-usable medium may include one of the computer-usable program codes realized by the computer to transmit a data signal in a part of a base frequency or a carrier wave. The computer-usable program code can be transmitted using any appropriate medium, including but not limited to wireless, wire, optical fiber cable, RF, and so on.

The computer code used to perform the operations of the present disclosure can be written in any combination of one or more programming languages, such programming languages including an object-oriented programming language, for example, Java, Smalltalk, C++ or the like , And the procedural programming language that is used, for example, the "C" programming language or similar programming languages. The code can be executed entirely on the user's computer, as an independent software package, partly executed on the user's computer, partly executed on the user's computer and partly on a remote computer Or run completely on a remote computer or server. In the latter case, the remote computer can be connected to the user's computer via any type of network, such as a local area network (LAN) or a wide area network (WAN), or can be connected to an external Computer (for example, using an Internet service provider while passing through the Internet).

According to the embodiments of the present disclosure, the present disclosure is described with reference to flowchart illustrations or block diagrams of methods, equipment (systems), and computer program products. It should be understood that various blocks of the flowchart illustrations or block diagrams, and combinations of blocks in the flowchart illustrations or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing equipment to generate a machine, so that the instructions pass through the computer’s processor or other programmable data The processing device executes to generate means for performing the functions/actions specified in the flowcharts or block diagrams.

These computer program instructions can also be stored in a computer-readable medium, which can instruct a computer or other programmable data processing equipment to act in a specific way, so as to be stored in the computer-readable medium The instructions in this generate a manufactured object, which includes instruction means to perform the functions/actions specified in the flowchart or block diagram.

Computer program instructions can also be loaded into a computer or other programmable resources Processing equipment, to cause a series of operation steps to be carried out on the computer or other programmable equipment to generate a computer execution processing program, so that the instructions executed on the computer or other programmable equipment are provided for A processing program that executes the functions/actions specified in the flowchart or block diagram block.

Figure 10 shows an apparatus 130, such as a UE, TRP, or eNB, according to some embodiments. For example, the device 130 may be the electronic device 100 shown in FIG. 5 for using the transmitter/receiver 133 to transmit or receive signals, the UE shown in FIG. 1 such as the UE 152, the TRP such as the TRP 153, or the eNB shown in FIG. ENB 151, or UE such as UE 1, UE 2 or UE 3 in FIG. 4, or TRP or other devices such as TRP A, TRP B, or TRP C. Furthermore, the control circuit 131 can operate according to the processing described herein, such as the processing 180 in FIG. 6, the processing 190 in FIG. 7, or the processing 198 in FIG.

In an embodiment where the electronic device 130 is used to implement the device 100 shown in FIG. 5, the control circuit 131 may be implemented as part of the baseband circuit 104 and the transmitter/receiver 133 may be implemented as the RF circuit 106 and/or Part of FEM circuit 108. In an embodiment, the control circuit may be a BRS used to periodically determine the link to transmit a plurality of effective links, and to determine a plurality of power control parameters (the link between each power control parameter and the effective link set) Path association) and a processing circuit used to schedule the UE's link for uplink transmission (UL). In addition, the transmitter/receiver 133 can be used to transmit the BRS from the eNB.

Figure 11 shows the ability to read data from a machine according to some example embodiments A block diagram of the components of a readable or computer readable medium (for example, a machine readable storage medium) that executes any one or more of the methods discussed herein. Specifically, FIG. 11 shows a schematic diagram of a hardware resource 1100, which includes a processing circuit. The processing circuit includes one or more processors (or processor cores) 1110, one or more memory/storage devices 1120, and one or more Communication resources 1130. Each communication resource 1130 is communicatively coupled via a bus 1140. In an embodiment, the memory/storage device 1120 may be the computer readable medium 124 in FIG. 9, and the one or more processors 1110 may be a part of the control circuit 131 in FIG. 10.

Processor 1110 (such as central processing unit (CPU), reduced instruction set computing (RISC) processor, complex instruction set computing (CISC) processor, graphics processing unit (GPU), digital signal processor (DSP), such as baseband processing A processor, an application-specific integrated circuit (ASIC), a radio frequency integrated circuit (RFIC), another processor, or any suitable combination thereof) may include, for example, a processor 1112 and a processor 1114. The memory/storage device 1120 may include main memory, disk storage, or any suitable combination thereof. In an embodiment, the processor 1110 may be a D2D circuit for determining a resource pool from the set of available resources for SL communication.

The communication resource 1130 may include interconnection and/or network interface components or other suitable devices to communicate with one or more peripheral devices 1104 and/or one or more database 1106 via the network 1108. For example, the communication resource 1130 may include wired communication components (for example, for coupling via a universal serial bus (USB)), cellular communication components, near field communication (NFC) components, Bluetooth® components (for example, Bluetooth ®Low energy), Wi-Fi® components and other communications Components. In an embodiment, the communication resource 1130 may be an interface control circuit that receives information about a set of available resources for SL communication.

The instructions 1150 may include software, programs, applications, applets, applications, or other executable codes for causing at least any one of the processors 1110 to execute any one or more of the methods discussed herein. The instructions 1150 may completely or partially reside in at least one of the processor 1110 (for example, in the cache memory of the processor), the memory/storage device 1120, or any suitable combination thereof. In addition, any part of the instruction 1150 can be transferred to the hardware resource 1100 from any combination of the peripheral device 1104 and/or the database 1106. Therefore, the processor 1110, the memory/storage device 1120, the peripheral device 1104, and the memory of the database 1106 are examples of computer-readable and machine-readable media.

example

Example 1 may include one or more computer-readable media containing instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: obtain a plurality of active links The measurement of the beamforming reference signal (BRS) of the link of the road, where the link includes the TRP beam of a plurality of TRP beams of the transmission and reception point (TRP), and the UE beam of a plurality of UE beams of the UE; The measurement of the BRS derives the path loss value; the downlink (DL) control channel in the service link of the plurality of active links is received for the uplink from the UE to the TRP (UL) transmit an uplink grant; determine the transmission power for the UL transmission based on the path loss value; and transmit the signal based on the determined transmission power.

Example 2 may include one or more computer-readable media described in Example 1 and/or some other examples herein, wherein the uplink grant includes an indication of the selection of a plurality of power control parameters for UL transmission.

Example 3 may include one or more computer-readable media described in Example 2 and/or some other examples in this document, in which the UE is configured with the plurality of power control parameters through transmission from a layer higher than the physical layer .

Example 4 may include one or more computer-readable media described in Example 1 and/or some other examples in this document, wherein the transmission power is determined to be the physical uplink shared channel (PUSCH) transmitted in the subframe , At least one of physical uplink control channel (PUCCH) or sounding reference symbol (SRS).

Example 5 may include one or more computer-readable media described in Example 1 and/or some other examples in this document, wherein transmitting the signal based on the determined transmission power includes transmitting the signal after receiving the DL control channel Multiple sub-frames.

Example 6 may include one or more computer-readable media described in Example 1 and/or some other examples in this document, wherein transmitting the signal based on the determined transmission power includes receiving the same sub-signal as that of the DL control channel. Transmission signal in the frame.

Example 7 may include one or more computer-readable media described in Example 3 And/or some other examples in this article, where the layer higher than the physical layer includes the medium access control (MAC) layer, the radio link control (RLC) layer, the packet data convergence protocol (PDCP) layer, and the radio resource control (RRC) layer and/or non-access tier (NAS) layer.

Example 8 may include one or more computer-readable media described in Example 1 and/or some other examples herein, wherein the TRP is associated with a first evolved node B (eNB) and the service link is communicatively connected to the The UE to the second TRP associated with the second eNB.

Example 9 may include one or more of the computer-readable media described in Example 1 and/or some other examples in this document, wherein when these instructions are executed, the UE will further cause the UE to: report to an evolved node B (eNB) The measurement of the BRS of a single link of the plurality of active links.

Example 10 may include one or more of the computer-readable media described in Example 1 and/or some other examples in this document, wherein when these commands are executed, the UE further causes the UE to: determine the use of transmission in the subframe Transmission power for the physical uplink shared channel (PUSCH), transmission power for the physical uplink control channel (PUCCH), and transmission power for the sounding reference signal (SRS); obtain the transmission power for the PUSCH , The sum of the transmission power for the PUCCH and the transmission power for the SRS; scaling the transmission power for the PUSCH, the transmission power for the PUCCH and the SRS by a single scaling value The transmission Power, where the sum of the scaled transmission power for the PUSCH, the scaled transmission power for the PUCCH, and the scaled transmission power for the SRS does not exceed the allowed uplink transmission for the UE Power; and transmitting the signal based on the scaled transmission power for the PUSCH, the PUCCH, or the SRS.

Example 11 may include one or more of the computer-readable media described in Example 1 and/or some other examples in this document, wherein when these instructions are executed, the UE monitors for the plural number every 5 milliseconds (ms). The BRS of the link of the effective link.

Example 12 may include a device for user equipment (UE) in a wireless communication network, including: a means for obtaining a plurality of power control parameters via a transmission from a layer higher than the physical layer, wherein the plurality of power control parameters The power control parameter of each power control parameter is associated with the link of a plurality of active links, and the link includes the TRP beam of the TRP beam of the transmission and reception point (TRP) and the UE beam of the UE. UE beam; used to determine the uplink grant and associated power control identifier for uplink (UL) transmission from the UE to the TRP based on the downlink (DL) control channel under the entity layer Means for identifying the power control parameters of the plurality of power control parameters based on the associated power control identifier; means for determining the transmission power based on the identified power control parameters; and A means for transmitting a signal using the determined transmission power.

Example 13 may include the device described in Example 12 and/or some other examples herein, wherein the means for determining the transmission power includes determining the physical uplink shared channel (PUSCH) used for transmission in the subframe The transmission power of the physical uplink control channel (PUCCH) or the transmission power of the sounding reference symbol (SRS).

Example 14 may include the device described in Example 12 and/or some other examples herein, wherein the means for transmitting the signal includes a plurality of sub-frames for transmitting the signal after the reception of the DL control channel.

Example 15 may include the device described in Example 12 and/or some other examples in this document, and further include: for acquiring the transmission power for the physical uplink shared channel (PUSCH) transmitted in the subframe, and for the physical The means for the sum of the transmission power of the uplink control channel (PUCCH) and the transmission power of the sounding reference signal (SRS), wherein the means for determining the transmission power based on the identified power control parameter includes the means for determining whether it is in the sub-frame The transmission power used for the PUSCH, the transmission power used for the PUCCH, and the transmission power used for the SRS means of transmission; the transmission power used for the PUSCH is scaled by a single scaling value, and the transmission power is used for the PUSCH. The transmission power on the PUCCH and the transmission power for the SRS, wherein the scaled transmission power for the PUSCH, the scaled transmission power for the PUCCH, and the scaled transmission power for the SRS The sum of the transmission power does not exceed the allowed uplink transmission power for the UE; and The means for transmitting the signal using the determined transmission power includes a means for transmitting the signal based on the scaled transmission power in the PUSCH, the PUCCH or the SRS.

Example 16 may include the device described in any of Examples 12-15 and/or some other examples herein, and further include: a beamforming reference signal for periodically monitoring the link for the plurality of active links (BRS) means; means for obtaining the measurement of the BRS for the link; means for deriving the path loss value based on the measurement of the BRS; and for the power control parameter in addition to the identification, A means to determine the transmission power based on the path loss value.

Example 17 may include the device described in any of Examples 12-15 and/or some other examples herein, wherein the layer higher than the physical layer includes a medium access control (MAC) layer, a radio link control (RLC) ) Layer, Packet Data Convergence Protocol (PDCP) layer, Radio Resource Control (RRC) layer and/or Non-Access Stratum (NAS) layer.

Example 18 may include the device described in Example 16 and/or some other examples in this document, and further include: a method for calculating a power headroom report (PHR) based on the path loss value; and a method for evolving node B (eNB) Means of reporting the PHR.

Example 19 may include a device for communicating with user equipment (UE) in an evolved node B (eNB) in a mobile communication network, including: A memory storing instructions; and one or more processors for executing the instructions stored in the memory to: periodically determine and transmit beamforming reference signals for a plurality of effective links (BRS), where the link includes TRP beams of a plurality of TRP beams of a transmission and reception point (TRP) and a UE beam of a plurality of UE beams of the UE; determining a plurality of power control parameters, wherein the plurality of power control parameters The power control parameter is associated with the link of the active link set; and the link is scheduled for the UE to transmit the uplink (UL).

Example 20 may include the device described in Example 19 and/or some other examples in this document, in which the one or more processors are further used to: determine a signal from a higher layer than the physical layer to transmit the plurality of data to the UE Power control parameters.

Example 21 may include the device described in Example 19 and/or some other examples herein, and further include: a transmitter for transmitting the BRS for the link, the plurality of power control parameters, and the scheduled link Route to the UE.

Example 22 may include the device described in Example 19 and/or some of the other examples herein, in which the one or more processors are further used to: schedule another link for another UE to another UE for transmission Uplink (UL), where the other link shares the TRP beam of the link in the same subframe.

Example 23 may include the equipment described in Example 19 and/or some of the In other examples, the one or more processors are further used to receive the report of the measurement of the BRS by the UE used for the link of the plurality of active links.

Example 24 may include the device described in Example 19 and/or some other examples herein, and further include: a receiver that receives a signal from the UE, where the signal is based on measurements from the BRS used for the link The derived path loss value determines the transmission power to transmit.

Example 25 may include the device described in Example 24 and/or some other examples herein, wherein the signal is a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), or a physical uplink control channel (PUCCH) transmitted in a subframe. Sounding Reference Symbol (SRS) is received.

Example 26 may include a device used in a user equipment (UE) in a mobile communication network, including: a memory for storing instructions; and one or more processors for executing data stored in the memory The instructions are to: obtain a beamforming reference signal (BRS) measurement for a link of a plurality of active links, wherein the link includes a TRP beam of a plurality of TRP beams of a transmission and reception point (TRP), and The UE beam of the plurality of UE beams of the UE; the path loss value is derived based on the measurement of the BRS; the downlink (DL) control channel in the serving link of the plurality of effective links is determined to be used from the UE uplink (UL) transmission Uplink authorization; determining the transmission power for the UL transmission based on the path loss value; and transmitting the signal based on the determined transmission power.

Example 27 may include the device described in Example 26 and/or some other examples herein, wherein the uplink grant includes an indication of the selection of a plurality of power control parameters for UL transmission.

Example 28 may include the device described in Example 27 and/or some other examples herein, in which the UE is configured with the plurality of power control parameters through transmission from a layer higher than the physical layer.

Example 29 may include the device described in Example 26 and/or some other examples herein, wherein the transmission power is determined to be the physical uplink shared channel (PUSCH) transmitted in the subframe, the physical uplink control channel ( PUCCH) or at least one of sounding reference symbols (SRS).

Example 30 may include the device described in Example 26 and/or some other examples in this document, in which the one or more processors are used to execute the instructions stored in the memory for receiving the DL control channel A plurality of sub-frames transmit the signal.

Example 31 may include the device described in Example 26 and/or some other examples herein, in which the one or more processors are used to execute the instructions stored in the memory to execute the instructions after receiving the DL control channel The signal is transmitted in the same subframe.

Example 32 may include the device described in Example 26 and/or some of the other examples herein, in which the one or more processors are used to execute storage in the memory The instructions in the memory further derive the path loss value based on the measurement of the BRS and the second parameter value provided by the layer higher than the physical layer.

Example 33 may include the device described in Example 26 and/or some other examples herein, wherein the TRP is associated with the first evolved node B (eNB) and the service link communicatively connects the UE to the second eNB. United’s second TRP.

Example 34 may include the device described in Example 26 and/or some other examples herein, wherein the one or more processors are used to execute the instructions stored in the memory and are further used to: The eNB) reports the measurement of the BRS for the individual links of the plurality of active links.

Example 35 may include the device described in Example 26 and/or some other examples herein, in which the one or more processors are used to execute the instructions stored in the memory and are further used to: Transmission power for the physical uplink shared channel (PUSCH), transmission power for the physical uplink control channel (PUCCH), and transmission power for the sounding reference signal (SRS) in the medium transmission; acquire for the PUSCH The sum of the transmission power, the transmission power for the PUCCH, and the transmission power for the SRS; the transmission power for the PUSCH, the transmission power for the PUCCH, and the SRS are scaled by a single scaling value The transmission power for the SRS, where the scaled transmission power for the PUSCH, the scaled transmission power for the PUCCH, and the scaled transmission power for the SRS The sum of the transmission power does not exceed the allowed uplink transmission power for the UE; and the signal is transmitted based on the scaled transmission power for the PUSCH, the PUCCH or the SRS.

Example 36 may include the device described in Example 26 and/or some other examples herein, in which the one or more processors are used to execute the instructions stored in the memory and further cause the UE every 5 milliseconds (ms ) Monitor the BRS for the link of the plurality of active links.

Example 37 may include a device for user equipment (UE) in a wireless communication network, including: a baseband circuit for obtaining a plurality of power control parameters through transmission from a layer higher than the physical layer, The power control parameters of the plurality of power control parameters are associated with the links of a plurality of effective links, and wherein the link includes a plurality of TRP beams of a transmission and reception point (TRP) and a plurality of TRP beams of the UE UE beam of UE beam; based on the downlink (DL) control channel under the entity layer, determine the uplink grant for uplink (UL) transmission from the UE to the TRP and the associated power control identification Based on the associated power control identifier, identify the power control parameters of the plurality of power control parameters; and determine the transmission power based on the identified power control parameters; and a radio frequency (RF) circuit, which is coupled to the baseband The RF circuit uses the determined transmission power to transmit the signal.

Example 38 may include the device described in Example 37 and/or some other examples in this document, in which the baseband circuit is used to determine the transmission power for the physical uplink shared channel (PUSCH) and use The transmission power on the physical uplink control channel (PUCCH) or the transmission power for sounding reference symbols (SRS).

Example 39 may include the device described in Example 37 and/or some other examples herein, wherein the RF circuit is used to transmit the signal in a plurality of sub-frames after the DL control channel is received.

Example 40 may include the device described in Example 37 and/or some other examples in this document, wherein the baseband circuit is further used to: obtain the transmission power for the physical uplink shared channel (PUSCH) transmitted in the subframe, The sum of the transmission power for the physical uplink control channel (PUCCH) and the transmission power for the sounding reference signal (SRS), where the baseband circuit is used to determine the transmission power for the PUSCH in the subframe Transmission power, the transmission power for the PUCCH, and the transmission power for the SRS; the transmission power for the PUSCH, the transmission power for the PUCCH, and the SRS are scaled by a single scaling value The transmission power, where the sum of the scaled transmission power for the PUSCH, the scaled transmission power for the PUCCH, and the scaled transmission power for the SRS does not exceed the allowed uplink for the UE Link transmission power; and wherein the RF circuit is used to transmit the signal based on the scaled transmission power in the PUSCH, the PUCCH, or the SRS.

Example 41 may include the device described in Example 37 and/or some other examples herein, wherein the baseband circuit is further used to: periodically monitor the beamforming reference signal (BRS) used for the link of the plurality of active links ); obtain the measurement of the BRS for the link; derive the path loss value based on the measurement of the BRS; and determine the transmission power based on the path loss value in addition to the identified power control parameter.

Example 42 may include the device described in Example 37 and/or some other examples in this document, wherein the baseband circuit is further used to: report to the evolved node B (eNB) the BRS for the individual links of the plurality of active links measuring.

Example 43 may include the device described in Example 37 and/or some other examples herein, wherein the baseband circuit is further used to: calculate a power headroom report (PHR) based on the path loss value; and report to an evolved node B (eNB) The PHR.

The foregoing description of one or more embodiments provides explanations and illustrations, but is not intended to be exhaustive or to limit the scope of the embodiments to the precise form disclosed. According to the above teachings, modifications and changes are possible, or can be obtained from the practice of various embodiments.

170‧‧‧Wireless network

1711, 1713‧‧‧TRP beam

1712, 1714, 1716, 1752‧‧‧Link

1722, 1724, 1742, 1744, 1762‧‧‧UE beam

1731, 1733, 1751‧‧‧TRP beam

Claims (28)

A computer-readable medium or media containing instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: At least one link to obtain a measurement of a reference signal (BRS) used for beamforming of the at least one link, wherein the at least one link includes one of a plurality of TRP beams of a transmission and reception point (TRP) , And one of the UE beams of the UE; based on the measurement of the individual BRS, a path loss value is derived for the at least one link; a downstream of one of the plurality of effective links serving links On the link (DL) control channel, an uplink grant for an uplink (UL) transmission from the UE is received; based on the uplink grant, the at least one link for the UL transmission is selected ; At least based on the path loss value for the selected at least one link, use the at least one link to determine the transmission power for the UL transmission; and transmit the signal based on the determined transmission power. One or more computer-readable media as described in item 1 of the scope of the patent application, wherein the uplink authorization includes an indication of the selection of a plurality of power control parameters for UL transmission. For example, one or more computer-readable media as described in item 2 of the scope of the patent application, wherein the UE is configured with the plurality of power control parameters through transmission from a layer higher than the physical layer. One or more computer-readable media as described in item 1 of the scope of the patent application, where the transmission power is determined to be used for the physical uplink shared channel (PUSCH) and physical uplink control for transmission in the subframe At least one of channel (PUCCH) or sounding reference symbol (SRS). According to one or more computer-readable media described in item 1 of the scope of patent application, transmitting the signal based on the determined transmission power includes transmitting the signal in a plurality of sub-frames after receiving the DL control channel. One or more computer-readable media as described in item 1 of the scope of patent application, wherein transmitting the signal based on the determined transmission power includes transmitting the signal in the same sub-frame when receiving the DL control channel . One or more computer-readable media as described in item 3 of the scope of patent application, wherein the layer higher than the physical layer includes the medium access control (MAC) layer, the radio link control (RLC) layer, and the packet Data Convergence Protocol (PDCP) layer, Radio Resource Control (RRC) layer and/or Non-Access Stratum (NAS) layer. One or more computer-readable media as described in item 1 of the scope of patent application, wherein the TRP is associated with the first evolved node B (eNB) and the service link communicatively connects the UE to the second eNB The associated second TRP. For example, one or more computer-readable media described in item 1 of the scope of the patent application, wherein when these instructions are executed, the UE will report to the evolved node B (eNB) for the plurality of valid links Measurement of the BRS of a single link. For example, one or more computer-readable media as described in item 1 of the scope of the patent application, wherein when these instructions are executed, the UE will determine the physical uplink shared channel used for transmission in the sub-frame ( PUSCH) transmission power, transmission power for physical uplink control channel (PUCCH) and transmission power for sounding reference signal (SRS); obtain the transmission power for the PUSCH and the transmission for the PUCCH The sum of the power and the transmission power for the SRS; the transmission power for the PUSCH, the transmission power for the PUCCH, and the transmission power for the SRS are scaled by a single scaling value, where The sum of the scaled transmission power of the PUSCH, the scaled transmission power for the PUCCH, and the scaled transmission power for the SRS does not exceed the allowable uplink transmission power for the UE; and The signal is transmitted at the scaled transmission power of the PUSCH, the PUCCH or the SRS. One or more computers can read as described in item 1 of the scope of patent application Media, wherein when the instructions are executed, the UE monitors the BRS for the link of the plurality of active links every 5 milliseconds (ms). One or more computer-readable media as described in claim 1, wherein the uplink authorization includes information indicating the at least one link used for the UL transmission, and which is at least based on the information included in the uplink The information in the link authorization selects the at least one link for the UL transmission. One or more computer-readable media as described in claim 1 of the patent application, wherein the uplink authorization further indicates at least one power control parameter of the plurality of power control parameters for the at least one link, and among them Based on the power control parameter, the transmission power used for the UL transmission is determined. One or more computer-readable media as described in item 1 of the patent application, wherein the US determines the path loss value for the at least one link based on the TRP beam included in the at least one link , And wherein the UE selects the corresponding UE beam included in the at least one link used for the UE transmission. A device for a user equipment (UE) in a wireless communication network, comprising: a baseband circuit for: obtaining a plurality of power control parameters through transmission from a layer higher than a physical layer, One of the plurality of power control parameters power The control parameter is associated with one of a plurality of effective links, and wherein the link includes a TRP beam of one of the TRP beams of a transmission and reception point (TRP) and a UE beam of one of the plurality of UE beams of the UE ; On a downlink (DL) control channel of the physical layer, receiving an uplink grant and an associated power control identifier for an uplink (UL) transmission from the UE to the TRP Based on the uplink grant, select the link for the UL transmission; based on the associated power control identifier, identify one of the plurality of power control parameters power control parameters; and based on the identified power control parameters , Using the link to determine a transmission power for the UL transmission; and a radio frequency (RF) circuit coupled to the baseband circuit, and the RF circuit uses the determined transmission power to transmit a signal. The device described in item 15 of the scope of patent application, wherein the baseband circuit is used to determine the transmission power for the physical uplink shared channel (PUSCH) transmitted in the subframe, and for the physical uplink control channel (PUCCH) transmission power or used for sounding reference symbol (SRS) transmission power. The device described in item 15 of the scope of patent application, wherein the RF circuit is used to transmit a plurality of sub-frames after receiving the DL control channel The signal. The device described in item 15 of the scope of patent application, wherein the baseband circuit is further used to: obtain the transmission power for the physical uplink shared channel (PUSCH) transmitted in the subframe, and for the physical uplink control The sum of the transmission power of the channel (PUCCH) and the transmission power of the sounding reference signal (SRS), where the baseband circuit is used to determine the transmission power for the PUSCH transmitted in the subframe and for the PUCCH The transmission power for the SRS and the transmission power for the SRS; the transmission power for the PUSCH, the transmission power for the PUCCH and the transmission power for the SRS are scaled by a single scaling value, where The sum of the scaled transmission power for the PUSCH, the scaled transmission power for the PUCCH, and the scaled transmission power for the SRS does not exceed the allowable uplink transmission power for the UE; and wherein The RF circuit is used to transmit the signal based on the scaled transmission power in the PUSCH, the PUCCH or the SRS. The device described in claim 15, wherein the baseband circuit is further used to: periodically monitor the beamforming reference signal (BRS) for the link of the plurality of effective links; Obtain a measurement of the BRS for the link; derive a path loss value based on the measurement of the BRS; and determine the transmission power based on the path loss value in addition to the identified power control parameter. The device described in claim 15, wherein the baseband circuit is further used for: reporting to an evolved node B (eNB) the measurement of the BRS used for the individual links of the plurality of active links. The device described in claim 15, wherein the baseband circuit is further used to: calculate a power headroom report (PHR) based on the path loss value; and report the PHR to an evolved node B (eNB). A device for communicating with a user equipment (UE) in an evolved node B (eNB) in a mobile communication network, comprising: a memory for storing commands; and a processing circuit for executing storage The instructions in the memory are to: periodically determine the transmission of a beamforming reference signal (BRS) for one of a plurality of active links, wherein the link includes a transmission and reception point (TRP) One of the TRP beams of the UE and one of the UE beams of the UE; determine a plurality of power control parameters, wherein the plurality of power control parameters One of the control parameters is a power control parameter associated with the link of the active link set; schedule the link for the UE to transmit the uplink (UL); and transmit an uplink grant to the For the UE, the uplink grant indicates the scheduled link and a corresponding power control parameter. For the device described in item 22 of the scope of patent application, the processing circuit is further used to determine the transmission from a layer higher than the physical layer to transmit the plurality of power control parameters to the UE. The device described in item 22 of the scope of the patent application further includes: a transmitter for transmitting the BRS for the link, the plurality of power control parameters, and the scheduled link to the UE. For the device described in claim 22, the processing circuit is further used to: schedule another link for another UE to another UE to transmit uplink (UL), wherein the other link The link shares the TRP beam of the link in the same subframe. For the device described in claim 22, the processing circuit is further used for: receiving the UE through the link of the plurality of effective links BRS measurement report. The device described in item 22 of the scope of patent application further includes: a receiver that receives a signal from the UE, wherein the signal is determined based on the path loss value derived from the measurement of the BRS for the link Transmit power to transmit. The device described in item 27 of the scope of patent application, wherein the signal is in the physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH) or sounding reference symbol (SRS) transmitted in the subframe receive.

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