TW201739295A - 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 links in beamforming systems

The embodiments are generally related to the field of wireless communications.

In order to meet the growing demand for data, wireless communication systems such as 5G systems can employ radio access technologies (RATs) that communicate over very high carrier frequencies, such as the millimeter wave (mmWave) spectrum. However, electromagnetic wave propagation may be poor at such high carrier frequencies. Highly directional antenna arrays can be used for Evolved Node Bs (eNBs), Transmission and Reception Points (TRPs), and User Equipments (UEs) to overcome attenuation due to wall penetration, leaves, obstructions, etc., at high carrier frequencies. Large path loss of electromagnetic wave propagation. Highly directional antenna arrays can be supported using large bandwidth digital to analog converters (DACs) and analog to digital converters (ADCs) operating at high sampling rates. However, such DACs and ADCs may be inefficient in terms of power loss.

100‧‧‧Electronic devices

102‧‧‧Application Circuit

104‧‧‧baseband circuit

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

104b‧‧‧ 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‧‧‧hard resources

1104‧‧‧ Peripheral devices

1106‧‧‧Database

1108‧‧‧Network

1110, 1112, 1114‧‧ ‧ processors

1120‧‧‧Memory/storage device

1130‧‧‧Communication resources

1140‧‧ ‧ busbar

1150‧‧‧ Directive

1612, 1632‧‧‧ baseband

1614, 1634‧‧‧RF chain

1616‧‧‧RF Beamformer

1618‧‧‧ADC/DAC

1631‧‧‧Subarray

1636‧‧‧beamformer

1711, 1713‧‧‧TRP beams

1712, 1714, 1716, 1752‧‧ links

1722, 1724‧‧‧UE beam

1731, 1733, 1751‧‧‧ TRP beams

Figure 1 illustrates the inclusion of a User Equipment (UE), Evolution, in accordance with various embodiments. High-level schematic example of a wireless communication system for Node B (eNB), Transmission and Receiving Point (TRP).

2 illustrates a high level schematic example of components used in a UE, eNB, or TRP, in accordance with various embodiments.

3 illustrates other high-level schematic examples of components used in a UE, eNB, or TRP, in accordance with various embodiments.

4 illustrates a link between multiple UE beams of a UE and multiple TRP beams of a TRP or eNB in a wireless communication system, in accordance with various embodiments.

FIG. 5 illustrates a block diagram of a TRP, eNB, and/or UE implementation, in accordance with various embodiments.

6-8 illustrate various processes for power control of a link between a UE beam of a UE and a TRP/eNB TRP beam in a beamforming system based on a beamforming reference signal (BRS), in accordance with various embodiments.

Figure 9 illustrates an example computer readable medium in accordance with some embodiments.

Figure 10 illustrates a block diagram of a TRP, eNB, and/or UE implementation, in accordance with various embodiments.

Figure 11 illustrates hardware resources for TRP, eNB, and/or UE in accordance with or suitable for use with some embodiments.

SUMMARY OF THE INVENTION AND EMBODIMENT

The following detailed description will refer to the accompanying drawings. The same component numbers may be used in different drawings to identify the same or similar components. In the following description, for purposes of explanation and not limitation, the specific embodiments A thorough understanding of the various aspects of the various embodiments. It will be apparent, however, that the various aspects of the various embodiments may be practiced in other examples. In other instances, descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the various embodiments.

For the purposes of this disclosure, the terms "A/B", "A or B" and "A and/or B" mean (A), (B) or (A and B). For the purposes 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. Further, the terms "including", "including", and "having" are used synonymously with respect to the embodiments of the present invention.

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

Embodiments herein may relate to power control and resource configuration in a wireless communication system, such as a fifth generation mobile network, also referred to as a fifth generation wireless system, or simply a 5G system. In particular, embodiments herein may be in a wireless communication system (such as a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), or a Sounding Reference Signal (SRS)) transmitted in a subframe. Transmission power control related to the uplink (UL) channel.

For example, a wireless communication system can include a User Equipment (UE), an evolved Node B (eNB), and a Transmission and Reception Point (TRP). The eNB may control one or more TRPs to transmit or receive signals. The TRP may be a remote radio head (RRH) controlled by an associated eNB or other eNB. The UE can transmit multiple UE beams, while the TRP can transmit multiple TRP beams. The link can be formed between the TRP beam and the UE beam. A UE may be configured to have a set of links, which may be referred to as a group of active links of the UE. The Beamforming Reference Signal (BRS) can be transmitted from the TRP of the link for a set of active links of the UE. The eNB may further schedule the links of a set of valid links of the UE for UL transmission. The UE may use the transmission power determined by the BRS based measurement and further based on the additional power control parameters received by the communication from the layer above the physical layer (hereinafter also referred to as "higher layer communication"), scheduled by the eNB The UL data or control signal is transmitted on the link, wherein the physical layer is a sublayer of layer 1 of the cell protocol stack. For example, in some embodiments, higher layer communication of power control parameters may refer to communication of power control parameters by a Radio Resource Control (RRC) layer that is a sublayer of Layer 3 of the cell protocol stack. However, in other embodiments, higher layer messaging may refer to other communications from other sublayers of layer 2 or 3 of the cell protocol stack, including but not limited to layer 2 sublayers (eg, media access control (MAC)) Layer, Radio Link Control (RLC) layer, Packet Data Convergence Protocol (PDCP) layer, or Layer 3 sublayer (eg, non-access stratum (NAS) layer).

More specifically, the UE may acquire measurements of the BRS for the links of the set of active links and derive path loss values based on the measurements of the BRS. In addition, the UE may further pass the downlink in the service link of the active link of the group A link (DL) control channel receives an uplink grant by UL transmission of a link from the UE to the TRP connected to the UE. The UE may also determine the transmission power for the UL transmission based on the path loss value, and the plurality of power control parameters obtained by the communication from the layer above the physical layer. In an embodiment, the UL grant message may include link identification such that the UE may autonomously select a beamformed path loss value to determine the transmit power for the UL transmission. In an embodiment, the UL grant message may include link identification such that the UE may determine the transmit power for the UL transmission based on the link identification selecting the beamformed path loss value.

In some embodiments, the eNB may periodically transmit BRSs for the links of the set of active links. The eNB may also use the link of the active link group of the UE to schedule UL data or control signals and transmit a BRS associated with the link and an indication of the scheduled link of the UE. The eNB may further determine a plurality of power control parameters and transmit signals from layers above the physical layer to the UE for signaling a plurality of power control parameters. In an embodiment, the eNB may have flexibility in assigning different links to different UEs such that multiple UEs may share and multiplex on a single beam. For example, the eNB may schedule other links to other UEs to transmit UL data or control, with other links sharing TRP beams for the UE's links in the same subframe. Moreover, in various embodiments, mechanisms for closed-loop adaptation per link, as well as techniques for interference control and coordination, may also be included.

FIG. 1 schematically illustrates a wireless communication network 150 in accordance with various embodiments. The wireless communication network 150 (hereinafter referred to as "network 150") may be the first A three-generation partnership project (3GPP) access network for Long Term Evolution (LTE) networks, such as the Evolved Global Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN). Alternatively or additionally, network 150 may be a 5G system at a typical carrier frequency or a very high carrier frequency such as a millimeter wave (mmWave) spectrum. Network 150 may include a base station (e.g., eNB 151) configured to communicate wirelessly with a UE (e.g., UE 152). Additionally, network 150 may also include a TRP, such as TRP 153.

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

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

The UE 152 can include a plurality of antennas 1522 through 1524 for wirelessly communicating over the network 150. The UE 152 can include any suitable number of antennas. In various embodiments, although the scope of the invention may not be limited in this respect, the UE 152 may include at least as many antennas as the antennas of several simultaneous spatial layers or streams received by the UE 152 from the eNB. One or more of the antennas 1522 to 1524 may alternatively be used as a transmission or reception antenna. Alternatively or additionally, one or more of the antennas 1522-1524 may be dedicated receive antennas or dedicated transmit antennas.

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

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

Because the transmitter 161 with a universal hybrid beamforming architecture can operate at very high carrier frequencies (such as the mmWave spectrum), a wide bandwidth ADC/DAC 1618 operating at high sample rates can be used to support highly directional antenna arrays. 1611 to 1615. However, the ADC/DAC 1618 may be inefficient in terms of power loss. Embodiments herein will use a general hybrid beamforming architecture to present the transmit power control mechanism for transmitter 161 to increase the efficiency of the DAC and ADC.

Figure 3 shows in more detail a transmitter 163 having a hybrid beamforming architecture with four sub-arrays 1631 of 4x4 cross-polarization (x-pol) elements at the eNB, such as eNB 151 of Figure 1. The baseband signal can be received from a total of eight (4 x-pol) beamformed chirps at any given time. In an embodiment, the beamformer selected in the analog domain may be highly spatially selective and applicable to one (or at most) UEs in the system. In an embodiment, four beamformers 1636 can be coupled to four sub-arrays 1631. The digital signal from baseband 1632 can be converted to an analog signal and processed by eight RF chains 1634 including a power amplifier and an ADC/DAC (not shown) and further processed by four beamformers 1636. The signals from the four beamformers 1636 are then 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. .

4 illustrates a link between multiple UE beams of a UE and multiple TRP beams of a TRP in a wireless network 170, in accordance with various embodiments. TRPs (e.g., TRP A, TRP B, and TRP C) may belong to (or otherwise be associated with) the same or different eNBs. The TRP (eg, TRP A, TRP B, and TRP C) may be the TRP 153 in FIG. 1, and the UE (eg, UE 1, UE 2, or UE 3) may be the 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 a TRP beam 1711 and a TRP beam 1713, which can be There is a TRP beam 1731 and a TRP beam 1733, and the TRP C can have a TRP beam 1751. In addition, the UE beam and the TRP beam 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 a TRP beam and a 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, while TRP beam 1711 and UE beam 1722 may form link 1712. More links can be formed in a similar manner. 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 an embodiment, the link may also be described as {(TRP #,beam#)-(UE #,beam#)}. For example, link 1714 can be described as {(TRP A, Beam 2) - (UE 2, Beam 2)}.

In an embodiment, the UE may be configured with a set of active links, also referred to as active link sets. More specifically, the UE (e.g., UE 1 of network 170) may have a set of possible links connecting the UE's UE beam to the TRP beam of the TRP in network 170. The UE may be configured on a subset of the links of the set of possible links 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 active links, a plurality of active links, or a set of active links. When a UE is configured with a valid link group with more than one link, the UE may be able to simultaneously receive (DL) and transmit (UL) multiple beams, thereby enabling SU-MIMO, multi-point coordination (MIMO/CoMP mode) or Transmission on multiple component carriers. Additionally or alternatively, The concept of applying a set of valid links in a non-CoMP mode. In an embodiment of the non-CoMP mode, a set of active links may be one link that the UE uses for transmission.

For example, as shown in FIG. 4, a UE may have a set of active links. More specifically, UE 1 may have a set of active 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 active 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 valid links: {TRP B, Beam 2) - (UE 3, Beam 1)}. The valid link set can be a subset of the links that the UE may have. For example, UE 2 may have a set of active links {(TRP A, Beam 2) - (UE 2, Beam 2), (TRP C, Beam 1) - (UE 2, Beam 1)}, and may have no The configuration and the additional link {(TRP B, Beam 2) - (UE 2, Beam 2)} included in a set of active links for UE 2 are shown as dashed lines. Similarly, links 1752 and 1716 shown in dashed lines may not be configured and valid.

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 active links of the UE may be referred to as a serving UL link. Likewise, the serving DL link may be a link for a set of valid links for transmitting DL data or control information from the TRP to the UE.

In an embodiment, a new RAT for a wireless system in the mmWave spectrum may be referred to as xRAT, where x refers to new. Similarly, various channels in various layers for data or control signal transmission for xRAT are also available It is called "x". For example, a UL PHY data channel called a physical uplink shared channel (xPUSCH) and a physical uplink control channel (xPUCCH), which may be transmitted in a subframe, is called a physical downlink control channel (xPDCCH). The DL control channel, and the 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.

A hybrid analogy for xRAT plus a digital beamforming architecture (such as those shown in Figures 2-3) can be presented between the UE and the 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 short packet, TCP ACK, L1/L2 uplink control information (UCI), buffer status report, power headroom report, beam-specific reference signal received power (RSRP), or B-RSRP Waiting for the lead. In an embodiment, the UE may be buffer limited. In addition, cell-edge UEs may be power-limited, and it may not be feasible to have a single or several quotas to "fill the pipeline." Embodiments herein may be presented for supporting multiple simultaneous user schedules on a UL to achieve improved system spectral efficiency and improved power efficiency to transmit a relatively large amount of L1/L2/L3 control information on the UL to satisfy DL data intensiveness The mechanism of application.

In an embodiment, the TRP (eg, TRP A, TRP B, or TRP C) may periodically determine that the UE transmits a BRS for a set of valid link links. For example, the BRS can be transmitted every 5 ms (or every N ms, where N can be a positive integer). In an embodiment, the BRS may be used for the UE to measure the beam finger The mechanism by which RSRP reports to the eNB. In an embodiment, the BRS can be used to track the UE and provide improved beamforming gain.

In an embodiment, a TRP (eg, TRP A, TRP B, or TRP C) may schedule a link for a set of active links as a serving UL link for the UE to transmit uplink UL data or control signals. For example, a TRP scheduler can dynamically schedule links for a set of active links from a UE. Such a dynamically scheduled link can allow a TRP or eNB scheduler to flexibly multiplex more users at the same time. For example, two UEs that have the same TRP receive beam in common among the active link groups of the UE can be scheduled simultaneously. In other words, the TRP can schedule the link for the UE to transmit the UL and then schedule another link to another UE for the other UE to transmit the UL, where the other link is in the same subframe. Share the TRP beam of the link. The selection of the scheduled link of the UE's active link set can be performed by an uplink grant message, which can be transmitted over the DL control channel in the service link.

In an embodiment, flexible scheduling of the plurality of links for multiple UEs may also result in ambiguity regarding path loss values used by the UE during power control. To address this ambiguity, the scheduler can schedule two UEs simultaneously on any given subframe, as long as the scheduler indicates to the two UEs which corresponding link they can activate for their UL transmission. The UE can then use the path loss value corresponding to the particular link in the power control settings.

In an embodiment, a TRP (eg, TRP A, TRP B, or TRP C) may determine a plurality of power control parameters, wherein the power control parameters may be The links of the active link set are associated. In addition, the TRP can determine the communication from a higher layer than the physical layer to signal a plurality of power control parameters to the UE.

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

Moreover, in an embodiment, the TRP may receive a report of the measurement of the BRS by the UE for the link of the plurality of active links. The TRP can receive a signal from the UE, wherein the signal can be transmitted using the transmission power determined based on the path loss value derived from the measurement of the BRS of the serving link. 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 for each link in the active link set of the UE. The UE may obtain measurements of BRS for each link in the active link set of the UE, such as RSRP or B-RSRP. Thereafter, the UE may report to the eNB or TRP the measurement of the BRS of each link in the active link set of the UE. For example, the UE may report some (eg, the first four) B-RSRP combinations to its serving eNB. The reported BRSs can be configured via eNB communication, or The UE may determine the reported B-RSRP combination set based on the threshold configured by the higher layer.

The UE may further derive a path loss value PL or simply a path loss from the measurement of the BRS of each link in the active link set of the UE. The path loss value may correspond to an estimate of the path loss for 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 an embodiment, the path loss value of the link (labeled PL(i,j)-(k,l) ) may refer to the beam derived from the beam j of the corresponding TRP i and the BRS of beam 1 of UE k Formed path loss value. In an embodiment, the UE may use the PL set to indicate the total information of the beamformed multi-cell system from the perspective of the UE. For example, a collection of PLs can be shown in Table 1 below:

In more detail, each of PL(i,j)-(k,l) in Table 1 may use a BRS corresponding to a downlink control information message, such as a DCI format corresponding to the UL grant. The BRS of the ID is calculated. For example, the 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 a measurement for the link acquired by the UE from the BRS signal, which may be further filtered by parameters from a higher layer to obtain a higher layer filtered B-RSRP.

The UE may also receive an uplink grant for UL transmission from the UE through a DL Control Channel in the serving 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 the 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 the TRP or eNB via communication from a layer above the physical layer. More details of the plurality of power control parameters can be presented in subsequent sections of the invention.

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

The UE may further transmit the signal based on the transmission power determined on the link indicated by the UL grant message. The subframes (eg, 1-3 subframes) after receiving the UL grant via the DL control channel may transmit signals by the UE. The spacing of several subframes between UL transmissions from the UE may provide the UE with sufficient time to switch its beam from the serving DL link to the beam for the scheduled UL link. In an embodiment, the signal may be transmitted by the UE in the same subframe as the subframe in which the UL grant was received. In this case, the UE may be able to switch its beam from the serving link to the beam for uplink transmission.

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

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

The UE transmission power P _PUSCH ( i ) for the xPUSCH transmission in the subframe i can be determined as follows: P _PUSCH ( i )=min{ P _CMAX , 10log ₁₀ ( M _PUSCH ( i )) + P _{O_PUSCH} ( j ) + α ( j ). PL + Δ _TF ( i ) + f ( i )}; where P _CMAX may be the configured UE transmission power; M _PUSCH ( i ) may be the xPUSCH resource allocation expressed by the number of resource blocks valid for subframe i The bandwidth; P _{O_PUSCH} ( j ) may be a parameter consisting of a cell indicating a nominal component P _{O_NOMINAL_PUSCH} provided from a higher layer and a sum of UE-specified components P _{O_UE_PUSCH} provided by a higher layer. For PUSCH (re)transmission corresponding to dynamic scheduling grant, then j=1, and for PUSCH (re)transmission corresponding to random access response grant, then j=2. P _{O_UE_PUSCH} (2) = 0 and P _{O_NOMINAL_PUSCH} (2) = P _{O_PRE} + Δ _{PREAMBLE_Msg 3} , where the parameters ( P _{O_PRE} ) and Δ _{PREAMBLE_Msg 3} are from higher layers.

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 ) may indicate a centralized selection from UEs of 16 value pairs configured by higher layers. The pair selected for P _{O_PUSCH} (1) and α can be _signaled by the DCI format corresponding to the UL grant.

For K _S = 1.25 and 0 for K _S =0, where K _S is provided by the UE provided by the higher layer, the parameter delta MCS is allowed to be given. More details are as follows: MPR = O _CQI / N _RE for control data transmitted via xPUSCH without uplink shared channel (UL-SCH) data and For other cases, where C is the number of code blocks, K _r is the size of the code block r , and O _CQI is the channel quality indicator (CQI) including the Cyclic Redundancy Check (CRC) bit. The number of bits and N _RE are judged as Number of resource elements, where C , K _r , as well as . The control data for the UL-SCH-free data transmitted through the xPUSCH is 1, in other cases.

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

f ( i )= f ( i -1)+ δ _PUSCH ( i - K _PUSCH ), if the accumulation is allowed based on the parameter accumulation permission indicated by the UE provided by the higher layer, where δ _PUSCH ( i - K _PUSCH ) can be The xPDCCH upload corresponding to the UL grant of the UL grant on the subframe i - K _PUSCH , and where f (0) is the first value after the reset is accumulated. K _PUSCH is the number of subframes between the reception of the DCI format and the corresponding xPUSCH transmission. The δ _PUSCH dB accumulated value may be transmitted on the xPDCCH corresponding to the UL-licensed DCI format.

If the UE reaches maximum power, the positive TPC command may not be accumulated. If the UE reaches minimum power, the negative TPC command may not be accumulated.

When the P _{O_UE_PUSCH} value is changed by a higher layer, and when the UE receives a random access response message, the UE may reset the accumulation.

The UE may maintain a separate f(i) accumulation procedure corresponding to the 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 sets of f(i) accumulation processes.

f ( i )= δ _PUSCH ( i - K _PUSCH ), if the accumulation is not allowed based on the parameter assignment of the UE specified by the higher layer, where: δ _PUSCH ( i - K _PUSCH ) is corresponding to the sub-information The xPDCCH transmission of the UL-licensed DCI format on the frame iK _PUSCH ; and the K _PUSCH is the number of subframes between the reception of the DCI format corresponding to the UL grant and the corresponding xPUSCH transmission.

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

f ( i )= f ( i -1) is used for the subframe, in which the xPDCCH of the DCI format corresponding to the UL grant is decoded or DRX or i is not an uplink subframe in the TDD. For both types f (*) (cumulative or current absolute), the first value is set as follows: if the P _{O_UE_PUSCH} value is changed by a higher layer, 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 the UE transmission power P _PUCCH for the physical uplink control channel (xPUCCH) transmission on the subframe i can be defined by: 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 may be the power transmitted by the configured UE; the parameter Δ _{F_PUCCH} ( F ) may be provided by a higher layer. Each Δ _{F_PUCCH} ( F ) value may correspond to a PUCCH format (F) corresponding to the PUCCH format of the DL grant. h ( n ) may be an xPUCCH format correlation value, where n _CQI pairs the number of information bits corresponding to the 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,

For PUCCH format 3, and when the UE transmits HARQ acknowledgment/scheduling request (HARQ-ACK/SR) without channel state information or beam information (CSI or BI), if the UE is configured by a higher layer to be at both antennas PU transmit PUCCH format 3, or if the UE sends more than 11 bits of HARQ-ACK/SR ;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 antennas, or if the UE transmits a HARQ-ACK exceeding 11 bits /SR and CSI ;otherwise

P _{O_PUCCH} is a parameter _{consisting of} a cell specifying parameter P _{O_NOMINAL_PUCCH} provided by a higher layer and a sum of UE-specific components P _{O_UE_PUCCH} provided by a higher layer. P _{O_PUCCH} and χ may indicate a centralized selection from UEs of 16 value pairs configured by higher layers. The selected pair for P _{O_PUCCH} and χ is reported by the DCI format or DCI scheduled periodic UCI report corresponding to the DL grant corresponding to the DL grant.

The δ _PUCCH indicates a correction value (also referred to as a TPC command) for the UE, which is included in the PDCCH having the DCI format corresponding to the DL grant. If the UE decodes the PDCCH having the DCI format corresponding to the DL grant and the corresponding detected Radio Network Temporary Identifier (RNTI) is equal to the C-RNTI of the UE, the UE may use the δ _PUCCH provided in the PDCCH.

, where g ( i ) is the current PUCCH power control adjustment state. The δ _PUCCH dB value may be transmitted in the PDCCH corresponding to the DCI format of the DL grant. The initial value of g ( i ) can be defined as a P _{O_UE_PUCCH} value with a higher layer g ( i ) = 0 change. The UE may maintain a separate g(i) accumulation procedure 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 processes.

If the UE reaches maximum power, the positive TPC command may not be accumulated. If the UE reaches minimum power, the negative TPC command may not be accumulated. When entering/leaving the RRC active state, when the P _{O_UE_PUCCH} value is changed by a higher layer, when the UE receives the random access response message g ( i )= 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 symbols (x SRS)

The setting of the UE transmission power P _{SRS for} the sounding reference symbols transmitted on the subframe i can be defined by: 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 power transmitted by the configured UE.

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

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

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

P _{O_PUSCH} ( j ) and α ( j ) are parameters, where j =1, corresponding to the set index of the communication in the xSRS schedule grant.

UE power margin

The UE power margin PH valid for subframe i is definition.

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

Downlink power allocation

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

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

eNB relatively narrow band TX power limit

The reported narrow-band TX power indication RNTP ( n _PRB ) is defined as follows:

Wherein E _A ( n _PRB ) is the maximum expected EPRE of the xPDSCH RE indicated by the UE in the OFDM symbol that does not contain the RS in the entity resource block on the antenna 埠p in the future time interval considered; n _PRB is an entity resource block Number n _PRB =0,..., RNTP _threshold with the following values RNTP _threshold {-∞,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,+1,+2,+3}[dB One of them, and

among them The maximum output power for the base station.

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

As used herein, the term "circuitry" may mean, may be partial, or include: application specific integrated circuits (ASICs), electronic circuits, processors (shared, dedicated, or in groups) and/or executed. Memory of one or more software or firmware programs (shared, dedicated, or grouped), combinatorial logic, and/or other suitable hardware components that provide the described functionality. In some embodiments, the circuitry can be implemented in one or more software or firmware modules, or the functions associated with the circuitry can be implemented by one or more software or firmware modules. In some embodiments, the circuitry can include logic that is at least partially operable in hardware.

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

Baseband circuitry 104 may include circuitry such as, but not limited to, one or more single core or multi-core processors. The baseband circuit 104 can include processing to receive from the receive signal path of the RF circuit 106 and to generate for RF power One or more baseband processors and/or control logic of the baseband signal of the path 106 of the transmission signal path. Baseband processing circuitry 104 can be coupled to application circuitry 102 for the generation and processing of baseband signals and for control operations of RF circuitry 106. For example, in some embodiments, baseband circuitry 104 can 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 existing generations or developing generations or other baseband processors 104d that will be developed in the future (eg, fifth generation (5G), 6G, etc.). Baseband circuitry 104 (e.g., one or more baseband processors 104a-d) can handle various radio control functions that can communicate with one or more radio networks via RF circuitry 106. Radio control functions may include, but are not limited to, signal modulation/demodulation, encoding/decoding, radio frequency shifting, and the like. In some embodiments, the modulation/demodulation circuitry of baseband circuitry 104 may include Fast Fourier Transform (FFT), precoding, and/or cluster mapping/demapping functionality. In some embodiments, the encoding/decoding circuitry of baseband circuitry 104 may include convolution, tail-biting convolution, acceleration, Viterbi, and/or low density parity checking (Low Density Parity). Check; LDPC) Encoder/Decoder function. 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, baseband circuitry 104 may include elements of a protocol stack, such as, for example, elements of an Evolved Universal Terrestrial Radio Access Network (EUTRAN) protocol, including, for example, a physical (PHY), media access control (MAC), Radio Link Control (RLC), Packet Data Aggregation Protocol (PDCP) and/or Radio Resource Control (RRC) components. The central processing unit (CPU) 104e of the baseband circuitry 104 can be configured to operate elements of a protocol stack for PHY, MAC, RLC, PDCP, and/or RRC layer messaging. In some embodiments, the baseband circuitry can include one or more audio digital signal processors (DSPs) 104f. The audio DSP 104f may include elements for compression/decompression and echo cancellation and may be included in other suitable processing elements of other embodiments.

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

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

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

The RF circuit 106 is capable of communicating with the wireless network using modulated electromagnetic radiation through the non-solid medium. In various embodiments, RF circuitry 106 may include switches, filters, amplifiers, etc. to facilitate communication with a wireless network. The RF circuit 106 can include a receive signal path that can include circuitry to down-convert the RF signal received from the FEM circuit 108 and provide a baseband signal to the baseband circuit 104. The RF circuit 106 can also include a transmit signal path that can include circuitry for up-converting the baseband signals provided by the baseband circuitry 104 and providing RF output signals to the FEM circuitry 108 for transmission.

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

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

In some embodiments, the mixer circuit 106a that receives the signal path and the mixer circuit 106a that transmits the signal path may include two or more mixers and may be configured to be used for quadrature down conversion and/or liter, respectively. Conversion. In some embodiments, the mixer circuit 106a that receives the signal path and the mixer circuit 106a that transmits the signal path may include two or more mixers and may be configured for image rejection (eg, Hartley image rejection (Hartley image) Rejection)). In some embodiments, the mixer circuit 106a and the mixer circuit 106a that receive the signal path can be configured for direct down conversion and/or direct up conversion, respectively. In some embodiments, the mixer circuit 106a that receives the signal path and the mixer circuit 106a that transmits the signal path can be configured for superheterodyne operation.

In some embodiments, the output baseband signal and the input baseband signal can 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 can be digital baseband signals. In these alternate embodiments, RF circuitry 106 may include ADC and DAC circuitry and baseband circuitry 104 may include a digital baseband interface to communicate with RF circuitry 106.

In some dual mode embodiments, separate radio IC circuits may provide processing signals for each spectrum, although the scope of the embodiments is not limited thereto.

In some embodiments, the synthesizer circuit 106d can 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 (divider).

The synthesizer circuit 106d can be configured to synthesize an output frequency for use by the mixer circuit 106a of the RF circuit 106 based on the frequency output and the divider control input. In some embodiments, the synthesizer circuit 106d can 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 baseband circuitry 104 or application processor 102 based on the desired output frequency. In some embodiments, the divider control input (eg, N) may be based on the indication by the application processor 102. The channel is determined from the lookup table.

The synthesizer circuit 106d of the RF circuit 106 can include a divider, a delay-locked loop (DLL), a multiplexer, and a phase accumulator. In some embodiments, the divider can be a dual modulus divider (DMD) and the phase accumulator can 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 example embodiments, the DLL may include a set of series, 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 phases of Nd identical packets, where Nd is the number of delay elements in the delay line. In this way, the DLL provides a negative feedback to help ensure that the total delay of the entire delay line is one VCO cycle.

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

The FEM circuit 108 can include a receive signal path that can include an RF signal that is configured to operate from one or more antennas 110, amplify the received signal, and provide an amplified version of the received signal to the RF circuit 106. A circuit for further processing. FEM circuit 108 may also include a transmission signal path that may include circuitry configured to amplify signals provided by RF circuitry 106 for transmission for transmission by one or more of one or more antennas 110.

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

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

In embodiments in which the electronic device 100 is, implemented in, integrated with, or otherwise part of a UE (such as the UE 152 in FIG. 1 or the UE 1 in FIG. 4), the RF circuit 106 can receive one or more Signals, such as BRS signals. Baseband circuitry 104 may acquire measurements of BRS for a set of active link links, derive path loss values based on BRS measurements, determine uplink grants from UE to TRP uplink (UL) transmissions, 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. Further transmission of signals.

In embodiments in which the electronic device 100 is, implemented in, integrated with, or otherwise part of a UE (such as the UE 152 in FIG. 1 or the UE 1 in FIG. 4), the RF circuit 106 can receive one or more Signals, such as BRS signals. Further, the RF circuit 106 can transmit the signal using the transmission power determined by the baseband circuit 104. Baseband circuitry 104 may obtain a plurality of power control parameters via communications from a higher layer than the physical layer, wherein the power control parameters may be associated with links of a plurality of active links to determine UL transmissions from the UE to the TRP. An uplink grant and associated power control identifier, a power control parameter identifying the plurality of power control parameters based on the associated power control identifier, and determining the transmit power based on the identified power control parameter.

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

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

Further, the baseband circuit 104 can periodically monitor the BRS for the links of the plurality of active links; obtain the measurements for the BRS of the link; derive the path loss values based on the BRS-based measurements; 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 can further report to the eNB a measurement of the BRS for each of the plurality of active 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, or otherwise part of a TRP or eNB (such as the eNB 151 or TRP 153 of FIG. 1 or TRP A of FIG. 4), the baseband circuitry 104 The BRS may be periodically determined to be transmitted by the link of the plurality of active links, and the plurality of power control parameters are determined, wherein the power control parameters of the plurality of power control parameters are associated with the link of the effective link set, and the scheduled UE is scheduled. The link to transmit UL.

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

In some embodiments, electronic device 100 of FIG. 5 can be configured to perform one or more processes, techniques, and/or methods as described herein, or portions thereof. One such process is depicted in FIG. 7, which may be performed by a UE, such as UE 152 of FIG. 1 or UE 1 of FIG. For example, the processing can include obtaining a plurality of power control parameters via communications from a higher layer than the physical layer, wherein the power control parameters of the plurality of power control parameters are associated with links of the plurality of active links, and wherein the chain The path 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 (191); determining an uplink grant for UL transmission from the UE to the TRP based on the DL control channel of the physical layer and related a power control identifier (193); identifying a power control parameter of the plurality of power control parameters based on the associated power control identifier (195); determining a transmission power based on the identified power control parameter (197); and using the determined Transmit power transmission signal (199).

In some embodiments, the electronic device 100 of FIG. 5 can be configured to perform One or more processes, techniques, and/or methods, or a portion thereof, as described herein. One such process is depicted in Figure 8, which may be performed by a TRP, such as TRP 153 of Figure 1 or TRP A of Figure 4. For example, the processing may include periodically determining a BRS transmitting a link for a plurality of active links, wherein 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 (192) Determining a plurality of power control parameters, wherein the power control parameters of the plurality of power control parameters are associated with a link of the active link set (194); and scheduling the link for the UE to transmit the UL signal (196).

9 illustrates an example computer readable medium 124 that can be adapted to store instructions that cause a device to practice selected aspects of the present invention in response to instructions executed by the device. In some embodiments, computer readable medium 124 can be non-transitory. As shown, computer readable storage medium 124 can include programming instructions 128. Programming instructions 128 may be configured to be responsive to execution of programming instructions 128 to implement any of the processes or elements associated with transmission power control for UL described in this disclosure (such as process 180, FIG. 6). The processing 190 in FIG. 7 or the processing 198 in FIG. 8 and the enabling device, such as the electronic device 100 shown in FIG. 5, such as the UE of the UE 152, the TRP such as the TRP 153, such as the eNB 151, as shown in FIG. An eNB, or a UE such as UE 1, UE 2 or UE 3 shown in Figure 4, or a TRP such as TRP A, TRP B or TRP C or other device. In some embodiments, programming instructions 128 may be placed on computer readable medium 124, such as a signal, that is transient in nature.

Any combination of one or more computers or computer readable media used. Computer-usable or computer-readable media can be, for example, but not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, devices, or propagation media. More computer-readable media-specific examples (non-exhaustive lists) will include the following: electrical connections with one or more wires, portable computer diskettes, hard drives, random access memory (RAM), read-only Memory (ROM), which eliminates programmable read-only memory (such as EPROM, EEPROM or flash memory), optical fiber, compact disc-readable memory (CD-ROM), optical storage devices, transmission media (for example, Those who support the Internet or internal network) or magnetic storage devices. It is noted that the computer usable or computer readable medium may even be the paper on which the program is printed or another suitable medium, as the program can be acquired electronically (eg, via optical on paper or other media) Scan), if necessary, is compiled, interpreted or processed in an appropriate manner and then stored in computer memory. In the context of this document, a computer usable or computer readable medium can be any medium that can contain, store, communicate, communicate, or transport a program for use in or in conjunction with an instruction execution system, apparatus, or device. . The computer usable medium may include a data signal transmitted in one of a baseband or a carrier wave by one of its available computer usable code. The computer can use the code to be transmitted using any suitable medium, including but not limited to wireless, wire, fiber optic cable, RF, and the like.

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

In accordance with embodiments of the present disclosure, the present disclosure is described with reference to flowchart illustrations or block diagrams of methods, devices (systems), and computer program products. It will be appreciated that the 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. The computer program instructions can be provided to a processor of a general purpose computer, a special purpose computer, or other programmable data processing device to generate a machine such that the instructions are via the computer processor or other programmable data. The device is executed to generate means for performing the functions/acts indicated in the flowchart or block diagram.

The computer program instructions can also be stored in a computer readable medium that can instruct a computer or other programmable data processing device to function in a particular manner so as to be stored in the computer readable medium. The instructions in the production of a manufactured article include instructions for performing the functions/acts indicated in the flowchart or block diagram.

Computer program instructions can also be loaded into a computer or other programmable The processing device is configured to cause a series of operational steps to be performed on the computer or other programmable device to generate a computer to execute the processing program such that the instructions executed on the computer or other programmable device are provided for The processing of the functions/actions specified in the flowchart or block diagram is performed.

Figure 10 illustrates an apparatus 130, such as a UE, TRP, or eNB, in accordance with some embodiments. For example, the device 130 may be the electronic device 100 shown in FIG. 5 for transmitting or receiving signals using the transmitter/receiver 133, such as the UE of the UE 152 shown in FIG. 1, a TRP such as TRP 153, such as an eNB. eNB of 151, or UE such as UE 1, UE 2 or UE 3 in Figure 4, or TRP or other device such as TRP A, TRP B or TRP C. Again, control circuitry 131 may operate in accordance with the processing operations described herein, such as process 180 in FIG. 6, process 190 in FIG. 7, or process 198 in FIG.

In embodiments in which electronic device 130 is used to implement device 100 shown in FIG. 5, control circuit 131 can be implemented as part of baseband circuit 104 and transmitter/receiver 133 can be implemented as RF circuit 106 and/or Part of the FEM circuit 108. In an embodiment, the control circuit may be a BRS for periodically determining a link for transmitting a plurality of active links, for determining a plurality of power control parameters (each power control parameter and a chain of the effective link set) The circuit is associated with) a processing circuit for scheduling a link for transmitting an uplink (UL) UE. Additionally, the transmitter/receiver 133 can be used to transmit BRS from the eNB.

Figure 11 illustrates the ability to read from a machine, in accordance with some example embodiments. A block diagram of an readable or computer readable medium (eg, a machine readable storage medium) and executing the components of any one or more of the methods discussed herein. Specifically, FIG. 11 shows a schematic diagram of a hardware resource 1100 including processing circuitry including one or more processors (or processor cores) 1110, one or more memory/storage devices 1120, and one or more The communication resource 1130 is communicatively coupled to each communication resource 1130 via the bus bar 1140. In an embodiment, the memory/storage device 1120 can be the computer readable medium 124 of FIG. 9, and the one or more processors 1110 can be part of the control circuit 131 of FIG.

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

Communication resources 1130 may include interconnect and/or network interface components or other suitable means for communicating with one or more peripheral devices 1104 and/or one or more databases 1106 via network 1108. For example, communication resource 1130 can include wired communication components (eg, for coupling via a universal serial bus (USB)), cellular communication components, near field communication (NFC) components, Bluetooth® components (eg, Bluetooth) ® Low Energy), Wi-Fi® components and other communications Component. In an embodiment, communication resource 1130 may be an interface control circuit that receives information about a set of available resources for SL communication.

The instructions 1150 can include software, programs, applications, applets, applications, or other executable code for causing at least any of the processors 1110 to perform any one or more of the methods discussed herein. The instructions 1150 may reside, in whole or in part, in at least one of the processor 1110 (eg, the cache memory of the processor), the memory/storage device 1120, or any suitable combination thereof. Moreover, any portion of the instructions 1150 can be transferred from the peripheral device 1104 and/or any combination of the libraries 1106 to the hardware resource 1100. Thus, the memory of processor 1110, memory/storage device 1120, peripheral device 1104, and database 1106 is an example of computer readable and machine readable media.

example

Example 1 can include one or more computer readable media, including instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: acquire for a plurality of active chains Measurement of a beamformed reference signal (BRS) of a link of the road, wherein the link includes a TRP beam 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; The measurement of the BRS derives a path loss value; receiving an uplink from the UE to the TRP through a downlink (DL) control channel in a service link of the plurality of active links (UL) an uplink grant for transmission; determining a transmission power for the UL transmission based on the path loss value; and transmitting a transmission signal based on the determination.

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

Example 3 may include one or more computer readable media as described in Example 2 and/or some other examples herein, wherein the UE is configured with the plurality of power control parameters by signaling from a higher layer than the physical layer .

Example 4 may include one or more computer readable media as described in Example 1 and/or some other examples herein, wherein the transmission power is determined to be a Physical Uplink Shared Channel (PUSCH) transmitted in a subframe. At least one of a Physical Uplink Control Channel (PUCCH) or a Sounding Reference Symbol (SRS).

Example 5 may include one or more computer readable media of the example 1 and/or some other examples herein, 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 can include one or more of the computer readable media of the example 1 and/or some other examples herein, wherein transmitting the signal based on the determined transmission power comprises receiving the same subsense as the DL control channel. The signal is transmitted in the box.

Example 7 can include one or more computer readable media as described in Example 3. 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, a Packet Data Convergence Protocol (PDCP) layer, and radio resource control. (RRC) layer and/or non-access level (NAS) layer.

Example 8 may include one or more computer readable media of the 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 coupled to the The UE to a second TRP associated with the second eNB.

Example 9 may include one or more of the computer readable media of the example 1 and/or some other examples herein, wherein when the instructions are executed, the UE is further caused to: report to the evolved Node B (eNB) Measurement of BRS for a separate link of the plurality of active links.

The example 10 may include one or more computer readable media as described in Example 1 and/or some other examples herein, wherein when the instructions are executed, the UE is further caused to: determine the transmission in the subframe. Transmission power of a physical uplink shared channel (PUSCH), transmission power for a physical uplink control channel (PUCCH), and transmission power for a sounding reference signal (SRS); acquiring the transmission power for the PUSCH a 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 for a single scaling value The transmission Power, wherein 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 computer readable media as described in Example 1 and/or some other examples herein, wherein when executed, the UE is further monitored for every 5 milliseconds (ms) for the complex number The BRS of the link of the active link.

Example 12 can include a device for a User Equipment (UE) in a wireless communication network, comprising: means for obtaining a plurality of power control parameters via a communication from a higher layer than the physical layer, wherein the plurality The power control parameters of the power control parameters are associated with links of a plurality of active links, and wherein the links include TRP beams of a plurality of TRP beams of a transmission and reception point (TRP) and a plurality of UE beams of the UE a UE beam; for determining an uplink grant for an uplink (UL) transmission from the UE to the TRP and an associated power control identifier based on a downlink (DL) control channel at the physical layer Means for identifying a power control parameter of the plurality of power control parameters based on the associated power control identifier; means for determining a transmission power based on the identified power control parameter; Means for transmitting signals using the determined transmission power.

Example 13 may include the apparatus of example 12 and/or some other examples herein, wherein the means for determining the transmission power includes determining for transmission in a subframe for a physical uplink shared channel (PUSCH) The transmission power, the transmission power for the Physical Uplink Control Channel (PUCCH) or the means for detecting the transmission power of the reference symbol (SRS).

Example 14 can include the apparatus of example 12 and/or some other examples herein, wherein the means for transmitting the signal includes transmitting the signal for a plurality of sub-frames after receipt of the DL control channel.

Example 15 may include the apparatus of example 12 and/or some other examples herein, and further comprising: for obtaining transmission power for a physical uplink shared channel (PUSCH) transmitted in a subframe, for an entity Means of a transmission power of an uplink control channel (PUCCH) and a sum of transmission powers for detecting a reference signal (SRS), wherein the means for determining transmission power based on the identified power control parameter comprises determining for use in a subframe Transmitting the transmission power for the PUSCH, the transmission power for the PUCCH, and the transmission power for the SRS; for scaling the transmission power for the PUSCH by a single scaling value, The transmission power of the PUCCH and the means for the transmission power of the SRS, wherein the scaled transmission power for the PUSCH, the scaled transmission power for the PUCCH, and the scaling for the SRS The sum of the transmission powers does not exceed the allowed uplink transmission power for the UE; The means for transmitting the signal using the determined transmission power includes means for transmitting the signal based on the PUSCH, the PUCCH, or the scaled transmission power in the SRS.

Example 16 may include the apparatus of any of examples 12-15 and/or some other examples herein, further comprising: beamforming reference signals for periodically monitoring the link for the plurality of active links Means of (BRS); means for obtaining measurements of the BRS for the link; means for deriving a path loss value based on the measurement of the BRS; and for, in addition to the identified power control parameters, A means for determining the transmission power based on the path loss value.

Example 17 may include the apparatus of 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, radio link control (RLC) Layer, Packet Data Convergence Protocol (PDCP) layer, Radio Resource Control (RRC) layer, and/or Non-Access Level (NAS) layer.

Example 18 can include the apparatus of example 16 and/or some other examples herein, further comprising: means for calculating a power headroom report (PHR) based on the path loss value; and for communicating to an evolved Node B (eNB) The means of reporting the PHR.

Example 19 can include a device for communicating with a User Equipment (UE) in an evolved Node B (eNB) in a mobile communication network, including: Storing a memory of the instruction; and one or more processors for executing the instructions stored in the memory to periodically determine a beamforming reference signal for transmitting a link for the plurality of active links (BRS), wherein the link includes a TRP beam 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 A power control parameter is associated with the link of the active link set; and the link for the UE is scheduled to transmit an uplink (UL).

Example 20 may include the device of example 19 and/or some other examples herein, wherein the one or more processors are further configured to: determine a layer from a higher layer than the physical layer to communicate the complex number to the UE Power control parameters.

Example 21 can include the apparatus of example 19 and/or some other examples herein, further comprising: a transmitter to transmit the BRS for the link, the plurality of power control parameters, and a chain of the schedule The way to the UE.

Example 22 may include the device of example 19 and/or some other examples herein, wherein the one or more processors are further configured 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 can include the device of Example 19 and/or some of the text herein In another example, the one or more processors are further configured to: receive, by the UE for the link of the plurality of active links, a report of the measurement of the BRS.

Example 24 may include the apparatus of example 19 and/or some other examples herein, further comprising: a receiver that receives a signal from the UE, wherein the signal is based on measurements from the BRS for the link The derived path loss value is determined by the transmission power to be transmitted.

Example 25 can include the apparatus of 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. Received in the Sounding Reference Symbol (SRS).

Example 26 can include a device for a User Equipment (UE) used in a mobile communication network, including: a memory for storing instructions; and one or more processors for executing stored in the memory The instructions are: obtaining a measurement of a beamformed reference signal (BRS) 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 a UE beam of a plurality of UE beams of the UE; deriving a path loss value based on the measurement of the BRS; determining to be used from the downlink (DL) control channel in a service link of the plurality of active links UE uplink (UL) transmission An uplink grant; determining a transmission power for the UL transmission based on the path loss value; and transmitting a transmission signal based on the determination.

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

Example 28 can include the apparatus of example 27 and/or some other examples herein, wherein the UE is configured with the plurality of power control parameters by signaling from a higher layer than the physical layer.

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

Example 30 can include the apparatus of example 26 and/or some other examples herein, wherein the one or more processors are configured to execute the instructions stored in the memory for receipt of the DL control channel The plurality of sub-frames transmit the signal.

Example 31 may include the apparatus of example 26 and/or some other examples herein, wherein the one or more processors are configured to execute the instructions stored in the memory to receive the DL control channel The signal is transmitted in the same subframe.

Example 32 may include the apparatus of example 26 and/or some other examples herein, wherein the one or more processors are configured to perform storage in the The instructions in the memory are further based on the measurement of the BRS and the path loss value derived from the second parameter value provided above the layer of the physical layer.

Example 33 can include the apparatus of 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 a second eNB The second TRP of the joint.

The example 34 can include the apparatus of example 26 and/or some other examples herein, wherein the one or more processors are configured to execute the instructions stored in the memory for further: to an evolved Node B ( The eNB) reports the measurement of the BRS for the individual links of the plurality of active links.

Example 35 may include the apparatus of example 26 and/or some other examples herein, wherein the one or more processors are configured to execute the instructions stored in the memory for further determining: in a subframe Transmission power for physical uplink shared channel (PUSCH), transmission power for physical uplink control channel (PUCCH), and transmission power for sounding reference signal (SRS); acquisition for the PUSCH a sum of the transmission power, 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 transmission power for the SRS, wherein the scaled transmission power for the PUSCH, the scaled transmission power for the PUCCH, and the scaling for the SRS The sum of the transmission powers 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 apparatus of example 26 and/or some other examples herein, wherein the one or more processors are configured to execute the instructions stored in the memory to further cause the UE to transmit every 5 milliseconds (ms) Monitoring the BRS for the link of the plurality of active links.

Example 37 can include a device for a User Equipment (UE) in a wireless communication network, comprising: a baseband circuit for: obtaining a plurality of power control parameters via communication from a higher layer than the physical layer, Wherein the power control parameters of the plurality of power control parameters are associated with links of a plurality of active links, and wherein the link includes a plurality of TRP beams of TRP beams of a transmission and reception point (TRP) and a plurality of UEs UE beam of the UE beam; determining an uplink grant for uplink (UL) transmission from the UE to the TRP and associated power control identification based on the physical layer downlink (DL) control channel a power control parameter identifying the plurality of power control parameters based on the associated power control identifier; and determining a transmission power based on the identified power control parameter; and a radio frequency (RF) circuit coupled to the baseband A circuit that uses the determined transmission power transmission signal.

Example 38 may include the apparatus of example 37 and/or some other examples herein, wherein the baseband circuitry is operative to determine transmission power for a physical uplink shared channel (PUSCH) transmitted in a subframe, Transmission power of the Physical Uplink Control Channel (PUCCH) or transmission power for sounding reference symbols (SRS).

Example 39 can include the apparatus of example 37 and/or some other examples herein, wherein the RF circuitry is to transmit the signal in a plurality of subframes after receipt of the DL control channel.

The example 40 may include the device of the example 37 and/or some other examples herein, wherein the baseband circuit is further configured to: acquire transmission power for a physical uplink shared channel (PUSCH) transmitted in the subframe, a sum of a transmission power for a physical uplink control channel (PUCCH) and a transmission power for a sounding reference signal (SRS), wherein the baseband circuit is configured to determine the transmission for the PUSCH in the subframe Transmission power, 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 for the SRS by a single scaling value The transmission power, wherein a 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 an allowed uplink for the UE Link transmission power; and wherein the RF circuit is operative to transmit the signal based on the scaled transmission power in the PUSCH, the PUCCH, or the SRS.

Example 41 may include the apparatus of example 37 and/or some other examples herein, wherein the baseband circuit is further configured to: periodically monitor beamforming reference signals (BRS) for the link of the plurality of active links Obtaining a measurement of the BRS for the link; deriving a path loss value based on the measurement of the BRS; and determining the transmission power based on the path loss value in addition to the identified power control parameter.

Example 42 may include the apparatus of example 37 and/or some other examples herein, wherein the baseband circuit is further configured to: report to the evolved Node B (eNB) a BRS for a separate link of the plurality of active links measuring.

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

The above description of one or more embodiments is provided by way of illustration and description, and is not intended to Modifications and variations are possible in light of the above teachings.

170‧‧‧Wireless network

1711, 1713‧‧‧TRP beams

1712, 1714, 1716, 1752‧‧ links

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

1731, 1733, 1751‧‧‧ TRP beams

Claims (25)

An one or more computer readable media, comprising instructions for causing the UE to: acquire for a plurality of active links when the instructions are executed by one or more processors of a user equipment (UE) Measurement of a beamformed reference signal (BRS) of a link, wherein the link includes a TRP beam 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; The measurement of the BRS derives a path loss value; determining an uplink for uplink (UL) transmissions from the UE based on a downlink (DL) control channel in a serving link of the plurality of active links Authorizing; determining a transmission power for the UL transmission based on the path loss value; and transmitting a signal based on the determined transmission power. One or more computer readable media as recited in claim 1, wherein the uplink grant includes an indication of a selection of a plurality of power control parameters for UL transmission. One or more computer readable media as described in claim 2, wherein the UE is configured with the plurality of power control parameters by transmitting from a higher layer than the physical layer. One or more computer readable media as recited in claim 1, wherein the transmission power is determined for physical uplink shared channel (PUSCH) transmission in the subframe, physical uplink control aisle At least one of (PUCCH) or sounding reference symbol (SRS). The one or more computer readable mediums of claim 1, wherein transmitting the signal based on the determined transmission power comprises transmitting the signal in a plurality of subframes after receiving the DL control channel. One or more computer readable media as recited in claim 1, wherein transmitting the signal based on the determined transmission power comprises transmitting the signal in a subframe adjacent to the reception of the DL control channel. One or more computer readable media as described in claim 3, wherein the layer higher than the physical layer includes a medium access control (MAC) layer, a radio link control (RLC) layer, and a packet. Data Convergence Protocol (PDCP) layer, Radio Resource Control (RRC) layer, and/or Non-Access Level (NAS) layer. One or more computer readable media as described in claim 1, 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. One or more computer readable media as described in claim 1, wherein when the instructions are executed, the UE is further caused to report to the evolved Node B (eNB) for the plurality of active links. Measurement of BRS for individual links. One or more computer-readable media as described in claim 1, wherein when the instructions are executed, the UE is further caused to determine that the physical uplink shared channel is transmitted in the subframe ( PUSCH) transmission power for physical uplink control channels Transmission power of (PUCCH) and transmission power for sounding reference signal (SRS); obtaining the sum of the transmission power for the PUSCH, 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 transmission power for the SRS are scaled by a single scaling value, wherein the scaled transmission power for the PUSCH is used for the PUCCH The sum of the scaled transmission power and the scaled transmission power for the SRS does not exceed the allowed uplink transmission power for the UE; and the transmission based on the scaling for the PUSCH, the PUCCH, or the SRS Power, transmitting the signal. One or more computer readable media as described in claim 1, wherein when the instructions are executed, the UE is further monitored for the chain of the plurality of active links every 5 milliseconds (ms). The BRS of the road. A device for a user equipment (UE) in a wireless communication network, comprising: a baseband circuit, configured to: acquire a plurality of power control parameters via a communication from a layer higher than a physical layer, wherein the plurality of power control parameters A power control parameter of a power control parameter is associated with a link of a plurality of active links, and a TRP beam of the plurality of TRP beams including the transmission and reception point (TRP) of the link and a UE of a plurality of UE beams of the UE Beam; based on the downlink (DL) control channel below the physical layer, decision An uplink grant for uplink (UL) transmission from the UE to the TRP and an associated power control identifier; identifying power control of the plurality of power control parameters based on the associated power control identifier a parameter; and determining a transmission power based on the identified power control parameter; and a radio frequency (RF) circuit coupled to the baseband circuit, the RF circuit transmitting the signal using the determined transmission power. The device of claim 12, wherein the baseband circuit is configured to determine a transmission power for a physical uplink shared channel (PUSCH) transmitted in a subframe, for a physical uplink control channel. (PUCCH) transmission power or transmission power for sounding reference symbols (SRS). The device of claim 12, wherein the RF circuit is configured to transmit the signal in a plurality of sub-frames after reception of the DL control channel. The device of claim 12, wherein the baseband circuit is further configured to: acquire transmission power for a physical uplink shared channel (PUSCH) transmitted in a subframe, and use for physical uplink control. a sum of a transmission power of a channel (PUCCH) and a transmission power for a sounding reference signal (SRS), wherein the baseband circuit is configured to determine the transmission power for the PUSCH transmitted in the subframe, for the PUCCH The transmission power and the transmission power for the SRS; scaling the transmission function for the PUSCH by a single scaling value Rate, the transmission power for 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 scaling for the SRS The sum of the transmission powers does not exceed the allowed uplink transmission power for the UE; and wherein the RF circuitry is operative to transmit the signal based on the scaled transmission power in the PUSCH, the PUCCH, or the SRS. The device of claim 12, wherein the baseband circuit is further configured to: periodically monitor a beamforming reference signal (BRS) of the link for the plurality of active links; and obtain the chain for the chain The measurement of the BRS of the path; deriving the path loss value based on the measurement of the BRS; and determining the transmission power based on the path loss value in addition to the identified power control parameter. The device of claim 12, wherein the baseband circuit is further configured to: report to the evolved Node B (eNB) a BRS for a separate link of the plurality of active links. The device of claim 12, wherein the baseband circuit is further configured 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 instructions; and processing circuitry for executing the instructions stored in the memory to periodically determine a beamforming reference signal (BRS) for transmitting a link for the plurality of active links, The link includes a TRP beam 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 power control parameters of the plurality of power control parameters Associated with the link of the active link set; and schedule the link for the UE to transmit an uplink (UL). The device of claim 19, wherein the processing circuit is further configured to: determine a layer from a higher layer than the physical layer to communicate the plurality of power control parameters to the UE. The device of claim 19, further comprising: a transmitter for transmitting the BRS for the link, the plurality of power control parameters, and the scheduled link to the UE. The device of claim 19, wherein the processing circuit is further configured to: schedule another link for another UE to another UE to transmit an uplink (UL), wherein the other The link shares the TRP beam of the link in the same subframe. The device of claim 19, wherein the processing circuit is further configured to: receive, by the UE for the link of the plurality of active links, a report of the measurement of the BRS. The device of claim 19, further comprising: a receiver that receives a signal from the UE, wherein the signal is determined using a path loss value derived from measurements of the BRS for the link. Transmit power to transmit. The device of claim 24, wherein the signal is in a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH) or a sounding reference symbol (SRS) transmitted in the subframe. receive.