CN109803311B

CN109803311B - Method and device in user equipment and base station for uplink power control

Info

Publication number: CN109803311B
Application number: CN201711148150.7A
Authority: CN
Inventors: 周化雨
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2022-10-28
Anticipated expiration: 2037-11-17
Also published as: CN109803311A

Abstract

The application discloses a method and a device in user equipment, a base station and the like for controlling uplink power. The method comprises the following steps: receiving a first wireless signal; transmitting a second wireless signal; wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried on a first frequency band and is sent; the first wireless signal is related to the second wireless signal; the second wireless signal includes a first report; the first report is used for power control; the second wireless signal is carried and sent on a second frequency band; the first frequency band is a downlink frequency band accessed by user equipment; the second frequency band is associated with the first frequency band. By designing the second wireless signal, the power reporting mechanism is optimized, the base station scheduling decision is optimized, and the overall performance of the system is improved.

Description

Method and device in user equipment and base station for uplink power control

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus in a user equipment and a base station for uplink power control.

Background

The NR (New Radio) system mainly operates in the middle frequency band (e.g., 3.5GHz band), and the channel fading and the penetration loss of the wireless signal in the middle frequency band are much larger than those in the low frequency band. The NR downlink obtains larger gain through technologies such as beam sweep and large-scale antenna. These gains can compensate for channel path loss caused by intermediate frequency transmission, and ensure that the downlink coverage of NR reaches the downlink coverage of LTE. Compared with the NR downlink, the NR uplink is limited by the transmission power of the terminal, the number of antennas, and the antenna gain, and the coverage of the NR uplink does not reach the coverage of the NR downlink. In order to avoid the leakage of the NR uplink coverage, a Supplementary uplink frequency band (complementary UL) is introduced into the NR to enhance the uplink coverage. The uplink supplemental band is primarily a lower frequency band (e.g., 1.8GHz band), as shown in the following table:

frequency band number	Uplink (UL)	Downstream	Duplex system
				n80	1710–1785MHz	N/A	SUL(Supplementary Uplink)
n81	880–915MHz	N/A	SUL
				n82	832–862MHz	N/A	SUL
n83	703–748MHz	N/A	SUL
				n84	1920–1980MHz	N/A	SUL
n85	2496–2690MHz	N/A	SUL

As can be seen from the table, the supplemental uplink frequency band has no corresponding downlink frequency band (including paired or unpaired). When the user works in the supplementary uplink frequency band, the supplementary uplink frequency band is related to the downlink frequency band carrying the RMSI message. I.e. the downlink frequency band corresponds to both the uplink frequency band (paired or unpaired) and the supplemental uplink frequency band.

Uplink power control needs to ensure both the link quality of uplink transmission with a large enough power and to reduce interference to other users with a small enough power. While still ensuring that the battery operates for a sufficiently long time.

A typical uplink power control involves obtaining a relatively coarse power value by open loop power control, which is based primarily on path loss. Closed loop power control is primarily based on fine tuning of open loop power control so that the user's transmit power can be adjusted according to changes in the channel.

The power headroom report includes parameters such as power headroom parameter, maximum transmission power parameter, cell id, etc., as detailed in 36.321 6.1.3.6

The prior art scheme includes that when a user measures that the downlink path loss change on a downlink frequency band exceeds a threshold value and a timer expires, the user reports a power margin; and when the base station activates an SCell for the user, the user reports the reported power margin.

In the NR system, introduction of the supplemental uplink frequency band may cause a change in uplink power control transmission, requiring redesign.

Disclosure of Invention

The inventor finds out through research that: when a user is configured to operate in a supplemental uplink band, there are two problems:

first, the complementary Uplink (supplemental Uplink) band and the associated downlink band have a relatively large difference in carrier frequency, so that the path loss calculated through the downlink band cannot accurately reflect the path loss in the complementary Uplink band.

Second, when the ue switches from uplink frequency band transmission to simultaneous transmission in the supplemental uplink frequency band and the uplink frequency band, the uplink transmission power of the ue in the uplink frequency band changes, and vice versa.

The present application provides a solution to the above-mentioned problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the user equipment of the present application may be applied in the base station and vice versa.

The application discloses a method in a user equipment used for power control, comprising:

receiving a first wireless signal;

transmitting a second wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried on a first frequency band and is sent; the first wireless signal is related to the second wireless signal; the second wireless signal includes a first report; the first report is used for power control; the second wireless signal is carried and sent on a second frequency band; the first frequency band is a downlink frequency band accessed by user equipment; the second frequency band is associated with the first frequency band.

According to an aspect of the present application, the first radio signal includes a first indication, and the first indication is used to instruct a ue to report the first report.

According to an aspect of the application, the first report contains at least one of a power headroom and a maximum transmit power parameter; the power headroom and the maximum transmit power are associated with the second frequency band.

According to one aspect of the application, the first indication is included in a random access response.

According to one aspect of the application, the first indication is included in downlink control information.

According to an aspect of the application, the first report is carried in message 3.

According to one aspect of the application, the method further comprises:

transmitting a third wireless signal;

wherein the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is received, and the first implicit indication comprises receiving the first wireless signal after sending the third wireless signal; and the first wireless signal second implicit indication indicates the first report to be sent, and the second implicit indication comprises triggering the first report to be reported after receiving the first wireless signal.

According to an aspect of the application, the second frequency band is a supplemental uplink frequency band.

According to an aspect of the application, the second band-dependent parameter first parameter is used for calculating a transmission power in a third frequency band; the third frequency band corresponds to the first frequency band, the third frequency band is an uplink frequency band, and the third frequency band carries at least one of a physical layer uplink data channel and a physical layer uplink control channel; the first parameter is associated with uplink transmission in the second frequency band.

According to an aspect of the application, the third band-related parameter a second parameter is used for calculating a transmit power on the second band; the second frequency band carries at least one of a physical layer uplink data channel and a physical layer uplink control channel; the second parameter is associated with uplink transmission in the third frequency band.

The application discloses a method in a base station device used for power control, comprising:

transmitting a first wireless signal;

receiving a second wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried and sent on a first frequency band; the first wireless signal is related to the second wireless signal; the second wireless signal includes a first report; the first report is used for power control; the second wireless signal is carried on a second frequency band; the first frequency band is a downlink frequency band sent by the base station equipment; the second frequency band is associated with the first frequency band.

According to an aspect of the application, the first radio signal comprises a first indication instructing a user equipment to report the first report.

According to an aspect of the application, the first report contains at least one of a power headroom and a maximum transmit power parameter; the power headroom and maximum transmit power are associated with the second frequency band.

According to one aspect of the application, the method further comprises:

receiving a third wireless signal;

wherein the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is sent, and the first implicit indication comprises the fact that the first wireless signal is sent after the third wireless signal is received; and the first report is sent by the second implicit indication of the first wireless signal, wherein the implicit indication comprises triggering the report of the first report after the first wireless signal is received.

According to an aspect of the application, the third frequency band related parameter is a second parameter used for calculating a transmission power on the second frequency band, and the second frequency band carries at least one of a physical layer uplink data channel and a physical layer uplink control channel; the second parameter is associated with uplink transmission in the third frequency band.

The application discloses a user equipment used for wireless communication, comprising:

a first receiving module, configured to receive a first wireless signal;

the first sending module is used for sending a second wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried and sent on a first frequency band; the first wireless signal is related to the second wireless signal; the second wireless signal comprises a first report; the first report is used for power control; the second wireless signal is carried and transmitted on a second frequency band; the first frequency band is a downlink frequency band accessed by user equipment; the second frequency band is associated with the first frequency band; the third wireless signal includes a first preamble sequence, the first preamble-to-sequence being used for random access.

According to an aspect of the application, the user equipment further comprises:

the second sending module is used for sending a third wireless signal;

The application discloses a base station device used for wireless communication, comprising:

the second receiving module is used for receiving a second wireless signal;

the second sending module is used for sending the first wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried on a first frequency band and is sent; the first wireless signal is related to the second wireless signal; the second wireless signal comprises a first report; the first report is used for power control; the second wireless signal is carried on a second frequency band; the first frequency band is a downlink frequency band sent by the base station equipment; the second frequency band is associated with the first frequency band.

According to an aspect of the application, the base station further comprises:

a third receiving module, configured to receive a third wireless signal;

wherein the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is sent, and the first implicit indication comprises the fact that the first wireless signal is sent after the third wireless signal is received; and the first wireless signal second implicit indication sends the first report, and the implicit indication comprises triggering the first report to be reported after receiving the first wireless signal.

As an embodiment, compared with the prior art, the present application has the following technical advantages:

the network side can select to instruct the user equipment to initially access in the supplementary uplink frequency band or report the power headroom report synchronously in the uplink so as to obtain the power state of the user equipment as soon as possible. The method and the device are beneficial to the network side to quickly adjust the transmitting power of the user, thereby efficiently scheduling the user.

When the user equipment performs uplink transmission on the supplemental uplink frequency band and the uplink frequency band simultaneously, the transmission power calculation introduces other frequency band related parameters to help the user equipment to operate in a linear region.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 shows a flow diagram of signal transmission according to an embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to the present application;

figure 4 shows a schematic diagram of an evolved node and a given user equipment according to an embodiment of the present application;

fig. 5 shows a block diagram of a processing means in a user equipment according to an embodiment of the present application;

fig. 6 shows a block diagram of a processing device in a base station according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of signal transmission, as shown in fig. 1.

For the user equipment U2, a first radio signal is received from the base station N1 at step S21, and a second radio signal is transmitted to the base station N1 at step S22. Optionally, a third wireless signal is sent to the base station N1 in step S20.

For the base station N1, a first radio signal is transmitted to the user equipment U2 in step S11, and a second radio signal from the user equipment U2 is received in step S12. Optionally, a third wireless signal is received from the user equipment U2 at step S10.

In embodiment 1, the first radio signal includes at least one of control information and random access response information; the first wireless signal is carried and sent on a first frequency band; the first wireless signal is related to the second wireless signal; the second wireless signal comprises a first report; the first report is used for power control; the second wireless signal is carried and sent on a second frequency band; the first frequency band is a downlink frequency band accessed by user equipment; the second frequency band is associated with the first frequency band. The first radio signal includes a first indication instructing a user equipment to report the first report. The first report includes at least one of a power headroom report and a maximum transmit power parameter; the power headroom report and maximum transmit power are associated with the second frequency band. The first indication is included in a random access response. The first indication is included in downlink control information. The first report is carried in message 3. The second frequency band is a supplemental uplink frequency band. The second frequency band-dependent parameter the first parameter is used to calculate the transmit power in a third frequency band; the third frequency band corresponds to the first frequency band, the third frequency band is an uplink frequency band, and the third frequency band carries at least one of a physical layer uplink data channel and a physical layer uplink control channel; the first parameter is associated with uplink transmission in the second frequency band. The third frequency band-related parameter a second parameter is used to calculate the transmit power on the second frequency band; the second frequency band carries at least one of a physical layer uplink data channel and a physical layer uplink control channel; the second parameter is associated with uplink transmission in the third frequency band.

As a sub-embodiment, the first radio signal is Downlink Control Information (DCI) scrambled with an RA-RNTI.

As a sub-embodiment, the first wireless signal is a Random Access Response (Random Access Response).

As a sub-embodiment, the second wireless signal is included in a message 3 (Msg 3).

As a sub-embodiment, the first wireless signal is carried in a Physical Downlink Channel (PDSCH).

As a sub-embodiment, the first wireless signal is carried in a Physical Downlink Control Channel (PDCCH).

As a sub-embodiment, the second radio signal is carried in a Physical Uplink Share Channel (PUSCH).

As a sub-embodiment, the first indication comprises N bits, N being a positive integer.

As a sub-embodiment, the high order bits of the first indication are used to indicate whether the downlink control information includes the first indication, where 1 indicates presence and 0 indicates absence. The low order bit is used to indicate the content of the power headroom, 0 indicates that the power headroom only includes the power headroom on the supplemental uplink band, and 1 indicates that the power headroom includes the power headroom on the supplemental uplink band and the uplink band.

As a sub-embodiment, the high order bits of the first indication are used to indicate whether the random access response includes the first indication, where 1 indicates presence, and 0 indicates absence. The low order bit is used to indicate the content of the power headroom, 0 indicates that the power headroom only includes the power headroom on the supplemental uplink band, and 1 indicates that the power headroom includes the power headroom on the supplemental uplink band and the uplink band.

As an embodiment, the first frequency band is a downlink frequency band accessed by a user equipment.

As a sub-embodiment, the first frequency band carries physical random access related configuration information.

As an embodiment, the second frequency band is a supplemental uplink frequency band accessed by the user equipment.

As an embodiment, the second frequency band is an uplink frequency band accessed by the user equipment.

As an embodiment, the third frequency band corresponds to the first frequency band one to one.

As an embodiment, the third frequency band is an uplink frequency band.

As a sub-embodiment, the first report includes at least one of a power headroom parameter and a maximum transmit power parameter.

As a sub-embodiment, the first report includes at least one of a power headroom and a maximum transmit power parameter of the second frequency band.

As a sub-embodiment, the first report includes at least one of a power headroom and a maximum transmit power parameter of the third frequency band.

As a sub-embodiment, the first report includes at least one of a power headroom and a maximum transmit power parameter for the second frequency band and the third frequency band.

As a sub-embodiment, the power headroom is the difference between the maximum transmit power of the user and the transmit power measured by the user.

As a sub-embodiment, the power headroom is an indicator, each of which represents a value or a range in decibels.

As a sub-embodiment, the maximum transmit power parameter is a maximum transmit power that the user equipment is allowed to transmit.

As a sub-embodiment, the maximum transmit power parameter is a higher layer configured value in dBm.

As a sub-embodiment, the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is received, and the first implicit indication comprises the first wireless signal received after the third wireless signal is sent; and the first wireless signal second implicit indication indicates that the first report is sent, and the second implicit indication comprises triggering the first report to be reported after the first wireless signal is received.

As a sub-embodiment, the third wireless signal is carried on the second frequency band.

As a sub-embodiment, the first preamble sequence is a random access preamble sequence.

As a sub-embodiment, the first implicit indication is that there is a fixed timing between the sending of the third wireless signal and the receiving of the first wireless signal.

As a sub-embodiment, the fixed timing refers to transmitting the third wireless signal at the N1 st slot/mini slot/symbol and receiving the first wireless signal at the N1+ M1 th slot/mini slot/symbol, where N1 and M1 are both positive integers.

As a sub-embodiment, the second implicit indication is that there is a fixed timing between the sending of the second wireless signal and the receiving of the first wireless signal.

As a sub-embodiment, the fixed timing refers to receiving the first radio signal at the N2 th slot/mini slot/symbol and transmitting the second radio signal at the N2+ M2 th slot/mini slot/symbol, where N2 and M2 are both positive integers.

As a sub-embodiment, the first parameter includes maximum transmission power in the second frequency band, and at least one of transmission power and path loss of a physical uplink control channel in the second frequency band.

As a sub-embodiment, the second parameter includes maximum transmission power in a third frequency band, and at least one of transmission power and path loss of a physical uplink control channel in the third frequency band.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2.

Fig. 2 is a diagram illustrating LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced), and future 5G system network architectures 200. The LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. The EPS 200 may include one or more UEs (User Equipment) 201, E-UTRAN (Evolved UMTS terrestrial radio Access network) 202, EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and Internet services 230. The UMTS is compatible with Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services. The E-UTRAN includes evolved node Bs (eNBs) 203 and other eNBs 204. The eNB203 provides user and control plane protocol terminations towards the UE 201. The eNB203 may connect to other enbs 204 via an X2 interface (e.g., backhaul). The eNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive point), or some other suitable terminology. eNB203 provides UE201 with an access point to EPC210. Examples of UEs 201 include cellular phones, smart phones, session Initiation Protocol (SIP) phones, laptops, personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network equipment, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functioning devices. UE201 may also be referred to by those skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. eNB203 connects to EPC210 through the S1 interface. The EPC210 includes an MME211, other MMEs 214, an S-GW (Service Gateway) 211, and a P-GW (Packet data Network Gateway) 213.MME211 is a control node that handles signaling between UE201 and EPC210. In general, the MME211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through the S-GW211, and the S-GW211 itself is connected to the P-GW213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS streaming service (PSs).

As a sub-embodiment, the UE201 corresponds to a user equipment in the present application.

As a sub-embodiment, the eNB203 corresponds to a base station in the present application.

As a sub-embodiment, the UE201 supports NR technology.

As a sub-embodiment, the UE201 is a Rel-15 release and later user equipment.

As a sub-embodiment, the eNB203 supports NR technology.

As a sub-embodiment, the eNB203 is a base station of Rel-15 and beyond.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the present application, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the UE and the eNB in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the eNB through PHY301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at an eNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW213 on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between enbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and eNB is substantially the same for the physical layer 301 and the L2 layer 305, but without header compression functionality for the control plane. The Control plane also includes a RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the eNB and the UE.

As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As a sub-embodiment, the first wireless signal in the present application is generated in the PHY sublayer 301.

As a sub-embodiment, the first wireless signal in the present application is generated in the MAC sublayer 302.

As a sub-embodiment, the first wireless signal in the present application is terminated at the MAC sublayer 302.

As a sub-embodiment, the first wireless signal in this application is terminated at the PHY sublayer 301.

As a sub-embodiment, the first indication in this application is generated in the PHY sublayer 301.

As a sub-embodiment, the first indication in this application is generated in the MAC sublayer 302.

As a sub-embodiment, the second wireless signal in the present application is generated in the PHY sublayer 301.

As a sub-embodiment, the second wireless signal in the present application is generated in the MAC sublayer 302.

As a sub-embodiment, the second wireless signal in this application is terminated in the PHY sublayer 301.

As a sub-embodiment, the second wireless signal in this application is terminated in the MAC sublayer 302.

As a sub-embodiment, the second radio signal in this application is generated in the RRC sublayer 306.

As a sub-embodiment, the second radio signal in this application is terminated in the RRC sublayer 306.

As a sub-embodiment, the first report in this application is generated in the PHY sublayer 301.

As a sub-embodiment, the first report in this application is generated in the MAC sublayer 302.

As a sub-embodiment, the first report in this application terminates at the PHY sublayer 301.

As a sub-embodiment, the first report in this application is terminated at the MAC sublayer 302.

Example 4

Embodiment 4 illustrates a schematic diagram of an evolved node and a given user equipment according to the present application, as shown in fig. 4.

Fig. 4 is a block diagram of an eNB410 in communication with a UE450 in an access network. In the DL (Downlink), upper layer packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of the L2 layer. In the DL, the controller/processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the UE450 based on various priority metrics. Controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to UE 450. The transmit processor 416 implements various signal processing functions for the L1 layer (i.e., the physical layer). The signal processing functions include decoding and interleaving to facilitate Forward Error Correction (FEC) at the UE450 and mapping to signal constellation based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols are then split into parallel streams. Each stream is then mapped to a multicarrier subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and/or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying a time-domain multicarrier symbol stream. The multi-carrier stream is spatially pre-decoded to produce a plurality of spatial streams. Each spatial stream is then provided via a transmitter 418 to a different antenna 420. Each transmitter 418 modulates an RF carrier with a respective spatial stream for transmission. At the UE450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and provides the information to a receive processor 456. The receive processor 456 implements various signal processing functions of the L1 layer. The receive processor 456 performs spatial processing on the information to recover any spatial streams destined for the UE 450. If multiple spatial streams are destined for UE450, they may be combined into a single multicarrier symbol stream by receive processor 456. A receive processor 456 then converts the multicarrier symbol stream from the time-domain to the frequency-domain using a Fast Fourier Transform (FFT). The frequency domain signal comprises a separate multicarrier symbol stream for each subcarrier of the multicarrier signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the most likely signal constellation point transmitted by the eNB 410. These soft decisions may be based on channel estimates computed by the channel estimator 458. The soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the eNB410 on the physical channel. The data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the L2 layer. The controller/processor can be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the UL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packets are then provided to a data sink 462, which represents all protocol layers above the L2 layer. Various control signals may also be provided to the data sink 462 for L3 processing. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations. In the UL (Uplink), a data source 467 is used to provide the upper layer packet to the controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the functionality described in connection with the DL transmission of the eNB410, the controller/processor 459 implements the L2 layer for the user plane and the control plane by providing header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the eNB 410. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the eNB 410. Channel estimates derived by a channel estimator 458 from the reference signals, or feedback transmitted by the eNB410, may be used by a transmit processor 468 to select appropriate coding and modulation schemes, and to facilitate spatial processing. The spatial streams generated by the transmit processor 468 are provided to different antennas 452 via separate transmitters 454. Each transmitter 454 modulates an RF carrier with a respective spatial stream for transmission. The UL transmissions are processed at the eNB410 in a manner similar to that described in connection with the receiver functionality at the UE 450. Each receiver 418 receives a signal through its respective antenna 420. Each receiver 418 recovers information modulated onto an RF carrier and provides the information to a receive processor 470. The receive processor 470 may implement the L1 layer. The controller/processor 475 implements the L2 layer. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the UL, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.

As a sub-embodiment, the UE450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.

As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the method comprises the steps of sending a first wireless signal, receiving a second wireless signal, receiving a third wireless signal and receiving a first signaling.

As a sub-embodiment, the eNB410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor.

As a sub-embodiment, the eNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: the method includes receiving a first wireless signal, transmitting a second wireless signal, transmitting a third wireless signal, and transmitting a first signaling.

As a sub-embodiment, the UE450 corresponds to the UE in this application.

As a sub-embodiment, the eNB410 corresponds to the base station in this application.

As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive a first wireless signal.

As a sub-embodiment, at least one of the receive processor 456 and the controller/processor 459 is configured to receive a first indication.

As a sub-embodiment, at least one of the transmit processor 468 and the controller/processor 459 is configured to transmit a second wireless signal.

As a sub-embodiment, at least one of the transmit processor 468 and the controller/processor 459 is configured to send a first report.

As a sub-embodiment, at least one of the receive processor 470 and the controller/processor 475 is configured to receive a second wireless signal.

As a sub-embodiment, at least one of the receive processor 470 and the controller/processor 475 is configured to receive a first report.

As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is used to transmit a first wireless signal.

As a sub-embodiment, at least one of the transmit processor 416 and the controller/processor 475 is used to send a first indication.

As a sub-embodiment, at least one of the data source 467, the memory 460, and the controller/processor 459 is configured to generate a parsed second wireless signal further comprising the first report including at least one of a power headroom report and a maximum transmit power parameter for the second frequency band; the first report includes at least one of a power headroom report and a maximum transmit power parameter for the third frequency band; the first report includes at least one of a maximum transmit power parameter and a power headroom report for the second and third frequency bands.

Example 5

Embodiment 5 illustrates a block diagram of a processing device in a user equipment, as shown in fig. 5.

In fig. 5, the ue processing apparatus 100 mainly includes a first receiving module 101, a first transmitting module 102, and a second transmitting module 103.

A first receiving module 101, which receives a first wireless signal;

a first transmission module 102 that transmits a second wireless signal;

a second transmitting module 103 configured to transmit a third wireless signal;

in embodiment 5, the first radio signal includes at least one of control information and random access response information; the first wireless signal is carried and sent on a first frequency band; the first wireless signal is related to the second wireless signal; the second wireless signal includes a first report; the first report is used for power control; the second wireless signal is carried and sent on a second frequency band; the first frequency band is a downlink frequency band accessed by user equipment; the second frequency band is associated with the first frequency band; the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is received, and the first implicit indication comprises receiving the first wireless signal after sending the third wireless signal; and the first wireless signal second implicit indication indicates the first report to be sent, and the second implicit indication comprises triggering the first report to be reported after receiving the first wireless signal.

As a sub-embodiment, the first receiving module 101 includes at least one of the receiving processor 456 and the controller/processor 459 in embodiment 4.

As a sub-embodiment, the first sending module 102 and the second sending module 103 comprise at least one of the sending processor 468 and the controller/processor 459 in embodiment 4.

Example 6

Embodiment 6 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 6.

In fig. 6, the base station processing apparatus 200 mainly includes a second receiving module 201, a third receiving module 202, and a second transmitting module 203.

The second receiving module is used for receiving a second wireless signal;

the third receiving module receives a third wireless signal;

a third transmitting module for transmitting the first wireless signal;

in embodiment 5, the first radio signal includes at least one of control information and random access response information; the first wireless signal is carried and sent on a first frequency band; the first wireless signal is related to the second wireless signal; the second wireless signal includes a first report; the first report is used for power control; the second wireless signal is carried on a second frequency band; the first frequency band is a downlink frequency band sent by the base station equipment; the second frequency band is associated with the first frequency band; the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is sent, and the first implicit indication comprises sending the first wireless signal after receiving the third wireless signal; and the first wireless signal second implicit indication sends the first report, and the implicit indication comprises triggering the first report to be reported after receiving the first wireless signal.

As a sub-embodiment, the second receiving module 201 and the third receiving module 202 include at least one of the receiving processor 470 and the controller/processor 475 in embodiment 4.

As a sub-embodiment, the and second transmit module 203 includes at least one of the transmit processor 416 and the controller/processor 475 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in the present invention include, but are not limited to, an RFID, an internet of things terminal device, an MTC (Machine Type Communication) terminal, a vehicle-mounted Communication device, a wireless sensor, an internet card, a mobile phone, a tablet computer, a notebook, and other wireless Communication devices. The base station, the base station device, and the network side device in the present invention include, but are not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method in a user equipment for uplink power control, comprising:

receiving a first wireless signal;

transmitting a second wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried and sent on a first frequency band; the first wireless signal is related to the second wireless signal; the second wireless signal comprises a first report; the first report is used for power control; the second wireless signal is carried and sent on a second frequency band; the first frequency band is a downlink frequency band accessed by user equipment; the second frequency band is associated with the first frequency band; third band-related parameter a second parameter is used to calculate the transmit power on the second band;

the first radio signal includes a first indication, where the first indication is used to instruct a user equipment to report the first report; the second frequency band is a supplementary uplink frequency band, and the third frequency band is an uplink frequency band corresponding to the first frequency band.

2. The method of claim 1, wherein the first report includes at least one of a power headroom parameter and a maximum transmit power parameter; the power headroom and maximum transmit power are associated with the second frequency band.

3. The method according to claim 1 or 2, wherein the first indication is included in a random access response.

4. The method of claim 1, wherein the first indication is included in downlink control information.

5. The method of claim 1, wherein the first report is carried in message 3.

6. The method of claim 1, further comprising:

transmitting a third wireless signal;

wherein the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is received, and the first implicit indication comprises the first wireless signal received after the third wireless signal is sent; and the first wireless signal second implicit indication indicates the first report to be sent, and the second implicit indication comprises triggering the first report to be reported after receiving the first wireless signal.

7. The method of claim 6, wherein the second band-dependent parameter first parameter is used to calculate a transmit power in a third band; the third frequency band bears at least one of a physical layer uplink data channel and a physical layer uplink control channel; the first parameter is associated with uplink transmission in the second frequency band.

8. The method of claim 7, wherein the second frequency band carries at least one of a physical layer uplink data channel and a physical layer uplink control channel; the second parameter is associated with uplink transmission in the third frequency band.

9. A method in a base station for uplink power control, comprising:

transmitting a first wireless signal;

receiving a second wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried and sent on a first frequency band; the first wireless signal is related to the second wireless signal; the second wireless signal comprises a first report; the first report is used for power control; the second wireless signal is carried on a second frequency band; the first frequency band is a downlink frequency band sent by the base station equipment; the second frequency band is associated with the first frequency band; third frequency band-related parameter a second parameter is used to calculate the transmit power on the second frequency band;

wherein the first radio signal includes a first indication, and the first indication is used for indicating the user equipment to report the first report; the second frequency band is a supplementary uplink frequency band, and the third frequency band is an uplink frequency band corresponding to the first frequency band.

10. The method of claim 9, wherein the first report includes at least one of a power headroom parameter and a maximum transmit power parameter; the power headroom and maximum transmit power are associated with the second frequency band.

11. The method of claim 9, wherein the first indication is included in a random access response.

12. The method of claim 9, wherein the first indication is included in downlink control information.

13. The method of claim 9, wherein the first report is carried in message 3.

14. The method of claim 9, further comprising:

receiving a third wireless signal;

wherein the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; the third wireless signal is carried and transmitted on the second frequency band; the third wireless signal first implicit indication indicates that the first wireless signal is sent, and the first implicit indication comprises sending the first wireless signal after receiving the third wireless signal; and the first wireless signal second implicit indication sends the first report, and the implicit indication comprises triggering the first report to be reported after receiving the first wireless signal.

15. The method according to claim 14, wherein the second band-dependent parameter first parameter is used for calculating a transmission power in a third frequency band; the third frequency band bears at least one of a physical layer uplink data channel and a physical layer uplink control channel; the first parameter is associated with uplink transmission in the second frequency band.

16. The method of claim 15, wherein the second frequency band carries at least one of a physical layer uplink data channel and a physical layer uplink control channel; the second parameter is associated with uplink transmission in the third frequency band.

17. A user equipment for uplink power control, comprising:

the first receiving module is used for receiving a first wireless signal;

the first sending module is used for sending a second wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried on a first frequency band and is sent; the first wireless signal is related to the second wireless signal; the second wireless signal includes a first report; the first report is used for power control; the second wireless signal is carried and sent on a second frequency band; the first frequency band is a downlink frequency band accessed by user equipment; the second frequency band is associated with the first frequency band; the third wireless signal comprises a first preamble sequence, the first preamble-to-sequence being used for random access; third frequency band-related parameter a second parameter is used to calculate the transmit power on the second frequency band;

18. The user equipment of claim 17, further comprising:

the second sending module is used for sending a third wireless signal;

19. A base station for uplink power control, comprising:

the second receiving module is used for receiving a second wireless signal;

a third sending module, configured to send a first wireless signal;

wherein the first radio signal contains at least one of control information and random access response information; the first wireless signal is carried on a first frequency band and is sent; the first wireless signal is related to the second wireless signal; the second wireless signal includes a first report; the first report is used for power control; the second wireless signal is carried on a second frequency band; the first frequency band is a downlink frequency band sent by the base station equipment; the second frequency band is associated with the first frequency band; third frequency band-related parameter a second parameter is used to calculate the transmit power on the second frequency band;

20. The base station apparatus according to claim 19, characterized by comprising:

a third receiving module, configured to receive a third wireless signal;