CN112600601A - Method and device in user equipment and base station for wireless communication - Google Patents

Method and device in user equipment and base station for wireless communication Download PDF

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Publication number
CN112600601A
CN112600601A CN202011436605.7A CN202011436605A CN112600601A CN 112600601 A CN112600601 A CN 112600601A CN 202011436605 A CN202011436605 A CN 202011436605A CN 112600601 A CN112600601 A CN 112600601A
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China
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time
information
time interval
pool
resources
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Chinese (zh)
Inventor
陈晋辉
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Honor Device Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to CN202011436605.7A priority Critical patent/CN112600601A/en
Publication of CN112600601A publication Critical patent/CN112600601A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0008—Wavelet-division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a method and a device in user equipment and a base station for wireless communication. The user equipment receives the first information and receives the second information within a first time interval. The second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval. The method and the device increase the flexibility of beam scheduling, and support better utilization of multi-antenna gain to improve the system capacity.

Description

Method and device in user equipment and base station for wireless communication
The present application is a divisional application of the following original applications:
application date of the original application: 2017.09.07
- -application number of the original application: 201710802355.6
The invention of the original application is named: method and device in user equipment and base station for wireless communication
Technical Field
The present application relates to a transmission scheme of wireless signals in a wireless communication system, and more particularly, to a method and apparatus for multi-antenna transmission.
Background
Large-scale (Massive) MIMO (Multi-Input Multi-Output) is a research hotspot for next-generation mobile communication. In massive MIMO, multiple antennas form a narrow beam pointing in a specific direction by beamforming to improve communication quality. The base station and the user equipment can realize narrower beams with lower radio frequency link cost by performing analog beam forming at a radio frequency end.
In 3GPP (3rd generation partner Project) new air interface discussion, it is proposed by the company that downlink physical layer control signaling is used to indicate a downlink analog receive beam of a UE, and a decoding delay of the downlink physical layer control signaling by the UE (User Equipment) may cause that it cannot receive a front multicarrier symbol in a subframe data field using the downlink analog receive beam indicated in the subframe.
Disclosure of Invention
The inventor finds through research that there are two types of beam scheduling schemes: the first type of beam scheduling scheme uses the downlink receiving beam indication to perform cross-subframe beam scheduling, and the second type of beam scheduling scheme uses the downlink receiving beam indication to perform local subframe beam scheduling. Both types of beam scheduling schemes have advantages and disadvantages. In the first type of beam scheduling scheme, the downlink reception beam indication transmitted in the previous subframe is used to receive all multicarrier symbols on the subframe data domain, and thus there is no problem that the downlink reception beam indication cannot be used to receive data or a related DMRS (Demodulation Reference Signal) due to a decoding delay, and there is a disadvantage in that the flexibility of beam scheduling is limited accordingly. In the second type of beam scheduling scheme, the downlink receive beam indication transmitted in the subframe may be used to receive multicarrier symbols at least located at the rear of the subframe data field, which is more flexible than the first type of beam scheduling scheme, and has a disadvantage in that the subframe data field may be divided into two parts using different receive beams, and thus corresponding DMRS configurations are required. In addition, the receiving beam transmitted on the downlink physical layer control channel indicates which multicarrier symbols on the subframe data field can be applied, and not only relates to the decoding capability of the UE, but also relates to the time resource occupied by the control field for the relevant physical layer control channel.
The present application provides a solution to the above 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 user equipment for wireless communication, comprising:
-receiving first information;
-receiving second information within a first time interval;
wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As an embodiment, the method has the advantages that while the signaling overhead is not increased as much as possible, the effective time of the downlink receiving beam indication is selected according to the decoding capability of the UE and the system condition, so that the flexibility of beam scheduling is increased, and the system capacity is improved by better utilizing the multi-antenna gain.
As an embodiment, a downlink physical layer control channel is used for transmitting the first information.
As an embodiment, a field in a DCI (Downlink Control Information) includes the first Information.
As an embodiment, a downlink physical layer shared channel is used for transmitting the first information.
As an embodiment, a higher layer signaling comprises said first information.
As an embodiment, a Radio Resource Control (RRC) signaling includes the first information.
As an embodiment, the first Information is an RRC IE (Information Elements).
As an embodiment, the time resources within the first time interval are consecutive.
As an embodiment, the first time interval consists of time resources occupied by consecutive N multicarrier symbols, N being a positive integer.
As a sub-embodiment of the above-mentioned embodiment, the N multicarrier symbols are N OFDM (Orthogonal Frequency Division Multiplexing) symbols.
As a sub-embodiment of the above embodiment, said N is equal to 14.
As a sub-embodiment of the above embodiment, said N is equal to 7.
As an embodiment, the first time interval consists of time resources occupied by consecutive N multicarrier symbols used for downlink transmission, where N is a positive integer.
As an embodiment, the first time interval is composed of time resources occupied by N multicarrier symbols continuously received by the user equipment, and N is a positive integer.
As an example, the first time interval includes a first control field composed of time resources occupied by consecutive N1 multicarrier symbols and a first data field composed of time resources occupied by consecutive N2 multicarrier symbols. The control field precedes the data field in time. Both the N1 and the N2 are positive integers.
As a sub-embodiment of the above embodiment, the N1 is equal to 3 and the N2 is equal to 11.
As a sub-embodiment of the above embodiment, the N1 is equal to 2 and the N2 is equal to 12.
As a sub-embodiment of the above embodiment, the second information is sent in the first control field, and the second time interval is in the first data field.
As an embodiment, the control domain refers to candidate time resources that may be used for transmitting physical layer control signaling and its corresponding DMRS.
As an embodiment, the control domain refers to a time resource that may be occupied by a physical layer control channel and a DMRS corresponding to the physical layer control channel.
As an embodiment, the data domain refers to candidate time resources that may be used to transmit data or higher layer signaling and its corresponding DMRS.
As an embodiment, the data domain refers to a time resource that may be occupied by a physical layer shared channel and a DMRS corresponding to the physical layer shared channel.
As an embodiment, the first time interval is a downlink time slot.
As an embodiment, the first time interval is a downlink subframe.
As an embodiment, a physical layer downlink control channel is used for transmitting the second information.
As an embodiment, a field in a DCI (Downlink Control Information) includes the second Information.
As an embodiment, the first DCI includes the second information, and the first DCI is further used to determine at least one of { time resource, frequency domain resource } occupied by a physical layer channel used for transmitting data or higher layer signaling.
As an embodiment, the first DCI includes the second information, and the first DCI is further used to determine at least one of { time resource, frequency domain resource } occupied by a Physical Downlink Shared Channel (PDSCH).
For one embodiment, the first pool of time resources comprises time resources that are discontinuous in the time domain.
For one embodiment, the first time resource pool includes a plurality of time intervals that are discontinuous in a time domain.
As an embodiment, the time resources in the first time resource pool are candidate time resources of a physical layer channel used for transmitting data or higher layer signaling and its corresponding DMRS.
As an embodiment, the time resources in the first pool of time resources are candidate time resources for PDSCH.
As an embodiment, the first reference signal is a downlink reference signal.
As an embodiment, the first reference signal is a downlink reference signal.
As one embodiment, the first Reference Signal is a CSI-RS (Channel State Information Reference Signal).
As an example, the first reference Signal is SS (Synchronization Signal).
As an embodiment, the first Reference Signal is SRS (sounding Reference Signal).
As one embodiment, the "used to determine" refers to an explicit indication.
As an embodiment, the "used to determine" refers to an implicit indication.
For one embodiment, the second information is used to determine that the wireless signal transmitted in the first time resource pool is spatially QCL (Quasi Co-located) with the reference signal.
For one embodiment, spatially QCL for two wireless signals means that at least one of { average delay, delay spread, doppler shift, doppler spread, spatial receive parameters, spatial transmit parameters } of the channels experienced by the two wireless signals is approximate or identical.
As an embodiment, the same spatial transmission parameters are used for transmitting the first reference signal and the wireless signals transmitted in the first pool of time resources.
As an embodiment, the spatial transmission parameters include parameters used by the transmitter acting on the phase shifter to control the spatial transmission direction.
For one embodiment, the spatial transmit parameters include spacing between transmit antenna elements in an active state.
As one embodiment, the spatial transmit parameter includes a number of transmit antenna elements in an active state.
As an embodiment, the spatial transmission parameters include a selection of a transmit antenna array.
As an embodiment, the same analog transmit beam is used for transmitting the first reference signal with the wireless signals transmitted in the first pool of time resources.
As an embodiment, the same spatial reception parameters are used for receiving the first reference signal and the wireless signal transmitted at the first time resource pool.
For one embodiment, the spatial reception parameters include parameters used by the receiver to act on phase shifters to control the spatial reception direction.
For one embodiment, the spatial receive parameter includes a spacing between receive antenna elements in an active state.
For one embodiment, the spatial receive parameter includes a number of receive antenna elements in an active state.
As an embodiment, the spatial reception parameter comprises a selection of a reception antenna array.
As an embodiment, the second information is sent before a starting time of the first time resource pool.
As one embodiment, the first reference signal is used for transmit beam selection.
As one embodiment, the first reference signal is used for receive beam selection.
As an embodiment, the position of the second time interval in the first time interval is preconfigured.
As an embodiment, the position of the end time of the second time interval in the first time interval is preconfigured.
As an embodiment, the end time of the second time interval is the same as the end time of the first time interval.
As an embodiment, the position of the start time of the second time interval in the first time interval is preconfigured.
As an embodiment, a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval is preconfigured.
As an embodiment, the time resources within the second time interval are consecutive.
As an embodiment, the relative position of the second time interval within the first time interval is preconfigured.
As an embodiment, the first information does not indicate a start time of the second time interval.
As an embodiment, if the first information is used to determine that the first time resource pool includes the second time interval, the starting time of the first time resource pool is the starting time of the second time interval.
As an embodiment, if the first information is used to determine that the first pool of time resources is orthogonal to the first time interval, the relative position between the starting time of the first pool of time resources and the ending time of the first time interval is default.
As an embodiment, if the first information is used to determine that the first time resource pool is orthogonal to the first time interval, the starting time of the first time resource pool is the starting time of the first multicarrier symbol of the data field in the next subframe.
As an embodiment, the first time interval consists of time resources occupied by N multicarrier symbols, the second time interval consists of time resources occupied by the last consecutive N3 multicarrier symbols of the N multicarrier symbols, N is a positive integer, and N3 is a positive integer smaller than N.
As a sub-embodiment of the foregoing embodiment, time resources occupied by N2 multicarrier symbols among the N multicarrier symbols are candidate time resources of a physical channel used for transmitting data or higher layer signaling and a DMRS corresponding to the physical channel, the N2 multicarrier symbols include the N3 multicarrier symbols, and the N2 is a positive integer greater than the N3.
As a sub-embodiment of the foregoing embodiment, the time resource occupied by the N3 multicarrier symbols is a candidate time resource for a physical channel used for transmitting data or higher layer signaling and a DMRS corresponding to the physical channel, and any multicarrier symbol of the N-N3 multicarrier symbols except the N3 multicarrier symbols is not used for the physical channel used for transmitting data or higher layer signaling and the DMRS corresponding to the physical channel.
As an embodiment, the time resource in the second time interval is not used for sending downlink physical layer control signaling.
As an embodiment, the time resources in the second time interval are candidate time resources of a physical channel used for transmitting data or higher layer signaling and its corresponding DMRS.
According to an aspect of the application, the user equipment receives a first bit block in the first time interval, a first field and a second field in the first bit block are used for indicating the first information and the second information respectively, and the first field comprises only one bit.
As an embodiment, the above method has a benefit in that the flexibility of beam scheduling is increased by 1-bit physical layer control information overhead.
As an embodiment, a physical layer downlink control channel is used for transmitting the first bit block.
As an embodiment, PDCCH is used for transmitting the first bit block.
As an embodiment, a short PDCCH (short PDCCH) is used for transmitting the first bit block.
As an embodiment, the first bit block is one DCI.
As an embodiment, the first bit block corresponds to one DCI format.
As an embodiment, the value of the first field is 0, the first time resource pool comprises a second time interval; or, the value of the first domain is 1, and the first time resource pool is orthogonal to the first time interval.
As an embodiment, the value of the first domain is 1, the first time resource pool comprises a second time interval; or, the value of the first domain is 0, and the first time resource pool is orthogonal to the first time interval.
As an embodiment, the first bit block is further used for determining at least one of { time resource, frequency domain resource } occupied by a physical layer channel used for transmitting data or higher layer signaling.
According to one aspect of the application, the method is characterized by comprising the following steps:
-receiving a first wireless signal within the first time interval;
wherein the same antenna port group is used for transmitting a second reference signal group and the first wireless signal, and the first information is used for determining time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
As an embodiment, the method has the advantage that the time domain position information of the DMRS resource is used to determine whether the base station performs the sub-frame beam scheduling or the cross-sub-frame beam scheduling, so that the signaling overhead can be saved while the beam scheduling flexibility is ensured.
As one embodiment, the first wireless signal is used to transmit data.
As one embodiment, the first wireless signal is used to transmit higher layer signaling.
As an embodiment, the first wireless signal is transmitted on a time-frequency resource used for transmitting data or higher layer signaling.
As one embodiment, the first wireless signal is transmitted on a PDSCH channel.
As one embodiment, the first wireless signal is used to transmit one or more transport blocks.
As an embodiment, the antenna port is formed by overlapping a plurality of physical antennas through antenna Virtualization (Virtualization). And the mapping coefficients of the antenna ports to the plurality of physical antennas form a beam forming vector which is used for virtualizing the antennas to form beams.
For one embodiment, the antenna port set includes one antenna port.
For one embodiment, the antenna port set includes a plurality of antenna ports.
As one embodiment, the antenna ports correspond one-to-one to the reference signals.
As an embodiment, the reference signals in the second set of reference signals are DMRS.
As one embodiment, the reference signals in the second set of reference signals are used to demodulate the first wireless signal.
As an embodiment, the antenna ports used for transmitting the first wireless signals are in one-to-one correspondence with the reference signals used for transmitting the second reference signal group.
As an embodiment, the second reference signal is one reference signal in the second reference signal group, the first antenna port is an antenna port used for transmitting the second reference signal, the first antenna port is also used for transmitting the first sub-signal in the first wireless signal, and the second reference signal is used for estimating a channel experienced by the first sub-signal.
As one embodiment, the first information indicates time resources occupied by the second reference signal group.
As an embodiment, L time resource configurations are a candidate pool of time resources that may be used for transmitting the second reference signal group in the first time interval, the first information indicates, from the L time resource configurations, a time resource configuration used for transmitting the second reference signal group, the L being a positive integer greater than 1.
In one embodiment, the time resources occupied by the second reference signal group include at least a first time resource group, and the first information indicates whether the time resources occupied by the second reference signal group include a second time resource group, where the time resources in the second time resource group are orthogonal to the first time resource group.
As one embodiment, the first information indicates time resources occupied by the first wireless signal, which are used to infer time resources occupied by the second reference signal group.
For one embodiment, if the time resources occupied by all reference signals in the second reference signal group are within the second time interval, the first time resource pool includes the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
As an embodiment, the time resources occupied by the second reference signal group include at least a first time resource group, and the first information indicates whether the time resources occupied by the second reference signal group include a second time resource group, where the time resources in the second time resource group are orthogonal to the first time resource group; the first set of time resources is not within the second time interval, the second set of time resources is within the second time interval; the first pool of time resources comprises the second time interval if the first information indicates that the time resources occupied by the second set of reference signals comprises a second set of time resources; the first time resource pool is orthogonal to the first time interval if the first information indicates that the time resources occupied by the second reference signal group do not include the second set of time resources.
As an embodiment, the antenna ports used for transmitting the sub-signals of the first wireless signal in the second time interval are in one-to-one correspondence with the reference signals in the second time interval in the second reference signal group.
According to one aspect of the application, the method is characterized by comprising the following steps:
-receiving third information;
wherein the third information is used to determine a starting instant of the second time interval.
As an embodiment, the above method has the advantage of flexibly configuring the effective time of the sub-frame beam scheduling indication according to the UE decoding capability and the system condition.
As an embodiment, a downlink physical layer shared channel is used for transmitting the third information.
As an embodiment, a higher layer signaling comprises said third information.
As an embodiment, one RRC signaling includes the third information.
As an embodiment, the third Information is an RRC IE (Information Elements).
As an embodiment, a downlink broadcast channel is used for transmitting the third information.
As an embodiment, the first time interval consists of N multicarrier symbols, and the third information is used to determine an index of a first multicarrier symbol in the second time interval among the N multicarrier symbols, where N is a positive integer greater than 1.
As an embodiment, the first time interval includes a data field consisting of N2 multicarrier symbols, the third information is used to determine an index of the first multicarrier symbol in the second time interval among the N2 multicarrier symbols, and N2 is a positive integer greater than 1.
According to one aspect of the present application, the time resource occupied by the channel carrying the second information is used to determine the starting time of the second time interval.
As an embodiment, the method has a benefit that the coverage of the beam indication of the subframe in the time domain is dynamically adjusted according to the time resource occupied by the channel carrying the beam indication.
As an embodiment, a first physical layer control channel is used to carry the second information, and the time resource occupied by the first physical layer control channel is used to determine the starting time of the second time interval.
As an embodiment, a first physical layer control channel is used to carry the second information, and the ending time of the time resource occupied by the first physical layer control channel is used to determine the starting time of the second time interval.
As an embodiment, a first physical layer control channel is used to carry the second information; if the time resource occupied by the first physical layer control channel is before the first time point in the first time interval, the starting time of the second time interval is the starting time of the data field in the first time interval.
As a sub-embodiment of the above embodiment, the first time point is a termination time of an nth 1 th multicarrier symbol within the first time interval, and N1 is a positive integer.
As a sub-embodiment of the above embodiment, the first time point is a termination time of a first multicarrier symbol within the first time interval.
As an embodiment, a starting time of the second time interval is equal to an ending time of a time resource occupied by a channel carrying the second information plus a first time offset.
As a sub-embodiment of the above embodiment, the first time offset is pre-configured.
As a sub-embodiment of the above embodiment, the third information is used to determine the first time offset.
As a sub-embodiment of the above embodiment, the first time offset is configured by default.
As an embodiment, if a second time point obtained by adding a first time offset to an ending time of a time resource occupied by a channel carrying the second information is before a starting time of a data field in the first time interval, the starting time of the second time interval is the starting time of the data field; the first time offset is preconfigured.
As an embodiment, if a second time point obtained by adding a first time offset to an ending time of a time resource occupied by a channel carrying the second information is after a starting time of a data field in the first time interval, the starting time of the second time interval is the second time point; the first time offset is preconfigured.
According to one aspect of the present application, the third information is used to determine a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval.
As an embodiment, the foregoing method has a benefit that the base station may configure the coverage of the beam indication of the subframe in the time domain according to the UE decoding capability, the transmission time point of the beam indication, and the system condition configuration.
As an embodiment, the third information is used to determine a time offset between an ending time of a time resource occupied by a channel carrying the second information and a starting time of the second time interval.
As an embodiment, the third information is used to determine the number of multicarrier symbols between the multicarrier symbol occupied by the channel carrying the second information and the start time of the second time interval.
As an embodiment, a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval is related to a decoding capability of the UE.
According to one aspect of the application, the method is characterized by comprising the following steps:
-transmitting the fourth information;
wherein the fourth information is used for determining time information related to the decoding capability of the user equipment, the fourth information being related to a starting instant of the second time interval.
As an embodiment, the above method has the advantage that the UE decoding capability is used by the base station to configure the coverage of beam scheduling in the time domain.
As an embodiment, an uplink physical layer shared channel is used for transmitting the fourth information.
As an embodiment, PUSCH (Physical Uplink Shared Channel) is used to transmit the fourth information.
As an embodiment, the fourth information is reported in a process of random access.
As an embodiment, a higher layer signaling comprises said fourth information.
As an embodiment, a Radio Resource Control (RRC) signaling includes the fourth information.
As an embodiment, the fourth Information is an RRC IE (Information Elements).
As an embodiment, the fourth information is used to determine the time overhead required for the user equipment to decode for one physical layer control channel.
As an embodiment, the fourth information is used to determine a maximum time overhead required for the user equipment to decode for one physical layer control channel.
As an embodiment, the fourth information is used to determine a minimum time overhead required for the user equipment to decode for one physical layer control channel.
As an embodiment, the fourth information is used to determine an average time overhead required for the user equipment to decode for one physical layer control channel.
As an embodiment, the fourth information is used to determine a time overhead required by the ue to decode the physical layer control channel on which the second information is located.
As an embodiment, the fourth information is used to determine a number K of multicarrier symbols, where K is a positive integer, and the ue may complete decoding for one physical layer control channel within a time length occupied by the K multicarrier symbols.
As an embodiment, the fourth information is used to determine a number K of multicarrier symbols, where K is a positive integer, and the ue may complete decoding of the physical layer control channel on one multicarrier symbol within a time length occupied by the K multicarrier symbols.
As an embodiment, the fourth information is used to determine a number K of multicarrier symbols, where K is a positive integer, and the ue may complete decoding of the physical layer control channel where the second information is located within a time length occupied by the K multicarrier symbols.
As an embodiment, the fourth information is used to determine a number K of multicarrier symbols, where K is a positive integer, and a time offset between a start time of the second time interval and a start time of the data field in the first time interval is not less than a time length occupied by the K multicarrier symbols.
As a sub-embodiment of the above embodiment, a time offset between a start time of the second time interval and a start time of the data field in the first time interval is equal to a time length occupied by K multicarrier symbols.
As a sub-embodiment of the above embodiment, a time offset between a start time of the second time interval and a start time of the data field in the first time interval is equal to a length of time occupied by K + K1 multicarrier symbols, where K1 is a positive integer.
As an embodiment, if a second time point obtained by adding a first time offset to an ending time of a time resource occupied by a channel carrying the second information is before a starting time of a data field in the first time interval, the starting time of the second time interval is the starting time of the data field; the first time offset is preconfigured; the fourth information is used to determine a number of multicarrier symbols, K, the K being a positive integer; the first time offset is not less than a length of time occupied by the K multicarrier symbols.
As a sub-embodiment of the above embodiment, the first time offset is equal to a length of time occupied by the K multicarrier symbols.
As a sub-embodiment of the above embodiment, the first time offset is greater than a time length occupied by the K multicarrier symbols.
As a sub-embodiment of the foregoing embodiment, the first time offset refers to a time length occupied by K3 multicarrier symbols, and K3 is a positive integer not less than K.
As an embodiment, if a second time point obtained by adding a first time offset to an ending time of a time resource occupied by a channel carrying the second information is after a starting time of a data field in the first time interval, the starting time of the second time interval is the second time point; the first time offset is preconfigured; the first time offset is not less than a length of time occupied by the K multicarrier symbols.
As a sub-embodiment of the above embodiment, the first time offset is equal to a length of time occupied by the K multicarrier symbols.
As a sub-embodiment of the above embodiment, the first time offset is greater than a time length occupied by the K multicarrier symbols.
As a sub-embodiment of the foregoing embodiment, the first time offset refers to a time length occupied by K3 multicarrier symbols, and K3 is a positive integer not less than K.
The application discloses a method in a base station device for wireless communication, comprising:
-transmitting the first information;
-transmitting second information in a first time interval;
wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
According to one aspect of the present application, it is characterized in that the base station device transmits a first bit block in the first time interval, a first field and a second field in the first bit block are used for indicating the first information and the second information respectively, and the first field includes only one bit.
According to one aspect of the application, the method is characterized by comprising the following steps:
-transmitting a first wireless signal within the first time interval;
wherein the same antenna port group is used for transmitting a second reference signal group and the first wireless signal, and the first information is used for determining time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
According to one aspect of the application, the method is characterized by comprising the following steps:
-transmitting the third information;
wherein the third information is used to determine a starting instant of the second time interval.
According to one aspect of the present application, the time resource occupied by the channel carrying the second information is used to determine the starting time of the second time interval.
According to one aspect of the present application, the third information is used to determine a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval.
According to one aspect of the application, the method is characterized by comprising the following steps:
-receiving fourth information;
wherein the fourth information is used for determining time information related to the decoding capability of the user equipment, the fourth information being related to a starting instant of the second time interval.
The application discloses a user equipment for wireless communication, which comprises the following modules:
-a first transceiver module receiving first information and second information during a first time interval;
wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As an embodiment, the user equipment is characterized in that the user equipment receives a first bit block in the first time interval, a first field and a second field in the first bit block are used for indicating the first information and the second information respectively, and the first field includes only one bit.
As an embodiment, the ue is characterized in that the first transceiver module receives a first wireless signal in the first time interval; wherein the same antenna port group is used for transmitting a second reference signal group and the first wireless signal, and the first information is used for determining time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
As an embodiment, the above user equipment is characterized in that the first transceiver module receives third information; wherein the third information is used to determine a starting instant of the second time interval.
As an embodiment, the ue is characterized in that the time resource occupied by the channel carrying the second information is used to determine the starting time of the second time interval.
As an embodiment, the ue is characterized in that the third information is used to determine a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval.
As an embodiment, the ue is characterized in that the first transceiver module transmits fourth information; wherein the fourth information is used for determining time information related to the decoding capability of the user equipment, the fourth information being related to a starting instant of the second time interval.
The application discloses a base station equipment for wireless communication, including the following module:
-a second transceiver module for transmitting the first information and for transmitting the second information during a first time interval; wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As an embodiment, the base station device is characterized in that the base station device transmits a first bit block in the first time interval, a first field and a second field in the first bit block are used for indicating the first information and the second information respectively, and the first field includes only one bit.
As an embodiment, the base station device is characterized in that the second transceiver module transmits a first wireless signal in the first time interval; wherein the same antenna port group is used for transmitting a second reference signal group and the first wireless signal, and the first information is used for determining time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
As an embodiment, the base station device is characterized in that the second transceiver module transmits third information; wherein the third information is used to determine a starting instant of the second time interval.
As an embodiment, the base station device is characterized in that the time resource occupied by the channel carrying the second information is used to determine the starting time of the second time interval.
As an embodiment, the base station device is characterized in that the third information is used to determine a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval.
As an embodiment, the base station apparatus is characterized in that the second transceiver module receives fourth information; wherein the fourth information is used for determining time information related to the decoding capability of the user equipment, the fourth information being related to a starting instant of the second time interval.
As an embodiment, compared with the prior art, the present application has the following technical advantages: the effective time of the downlink receiving beam indication is selected according to the decoding capability and the system condition of the UE while the signaling overhead is not increased as much as possible, so that the flexibility of beam scheduling is increased, and the capacity of the system is improved by better utilizing multi-antenna gain.
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 first information and second information according to an embodiment of the 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 an embodiment of 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 wireless signal transmission flow diagram according to an embodiment of the present application;
FIG. 6 shows a schematic diagram of a first time interval and a second time interval according to an embodiment of the present application;
FIG. 7 shows a schematic diagram of a first time resource pool according to an embodiment of the present application;
FIG. 8 shows a block diagram of a processing device in a UE according to an embodiment of the present application;
fig. 9 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 transmission of first information and second information of a target wireless signal according to the present application, as shown in fig. 1. In fig. 1, each block represents a step. In embodiment 1, the ue in this application receives first information and second information in a first time interval in sequence; wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As an embodiment, PDCCH is used to transmit the first information.
As an embodiment, the first information is an IE in RRC signaling.
As an embodiment, a physical layer control channel is used for transmitting the second information.
As an embodiment, the first time interval is one subframe.
As an embodiment, the first time interval consists of 14 OFDM symbols.
As one embodiment, the second information is used to determine that a transmission beam used to transmit the first reference signal is used to transmit a wireless signal in a first pool of time resources.
As one embodiment, the second information is used to determine that a receive beam used to receive the first i reference signal is used to receive a wireless signal in a first pool of time resources.
For one embodiment, the first time interval includes a control field and a data field, and the second time interval is on the data field within the first time interval.
For one embodiment, the first information indicates that the first time resource pool includes the second time interval.
As one embodiment, the first information indicates that the first pool of time resources is orthogonal to the first time interval.
Example 2
Example 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 a network architecture 200 of NR 5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 230. 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 or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 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 (point of transmission reception), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication 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. The gNB203 connects to the EPC/5G-CN210 through the S1/NG interface. The EPC/5G-CN210 includes an MME/AMF/UPF211, other MMEs/AMF/UPF 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. 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 an embodiment, the UE201 corresponds to a user equipment in the present application.
As an embodiment, the gNB203 corresponds to a base station in the present application.
As an embodiment, the UE201 supports multi-antenna transmission.
As an embodiment, the UE201 supports analog beamforming.
As an embodiment, the gNB203 supports multiple antenna transmission.
For one embodiment, the gNB203 supports analog beamforming.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the 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 User Equipment (UE) and the base station equipment (gNB or 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 PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY 301. 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 the gNB 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-GW 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 gnbs. 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 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 the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.
As an example, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.
As an example, the radio protocol architecture in fig. 3 is applicable to the base station apparatus in the present application.
As an embodiment, the first information in this application is generated in the MAC sublayer 302.
As an embodiment, the second information in this application is generated in the PHY 301.
As an example, the first wireless signal in this application is generated in the PHY 301.
As an embodiment, the third information in this application is generated in the MAC sublayer 302.
As an embodiment, the fourth information in this application is generated in the MAC sublayer 302.
Example 4
Embodiment 4 shows a schematic diagram of a base station device and a given user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.
Controller/processor 440, scheduler 443, memory 430, receive processor 412, transmit processor 415, MIMO transmit processor 441, MIMO detector 442, transmitter/receiver 416 and antennas 420 may be included in base station apparatus (410).
Controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, MIMO transmit processor 471, MIMO detector 472, transmitter/receiver 456, and antenna 460 may be included in a user equipment (UE 450).
In the downlink transmission, the processing related to the base station apparatus (410) may include:
upper layer packets arrive at controller/processor 440, controller/processor 440 provides packet header compression, encryption, packet segmentation concatenation and reordering, and demultiplexing of the multiplex between logical and transport channels to implement the L2 layer protocol for the user plane and control plane; the upper layer packet may include data or control information, such as DL-SCH (Downlink Shared Channel);
the controller/processor 440 may be associated with a memory 430 that stores program codes and data. Memory 430 may be a computer-readable medium;
controller/processor 440 informs scheduler 443 of the transmission requirement, scheduler 443 is configured to schedule the empty resource corresponding to the transmission requirement, and informs controller/processor 440 of the scheduling result;
controller/processor 440 passes control information for downlink transmission to transmit processor 415 resulting from processing of uplink reception by receive processor 412;
a transmit processor 415 receives the output bit stream of the controller/processor 440, implements various signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, and physical layer control signaling (including PBCH, PDCCH, PHICH, PCFICH, reference signal) generation, etc.;
MIMO transmit processor 441 performs spatial processing (e.g., multi-antenna precoding, digital beamforming) on the data symbols, control symbols, or reference signal symbols and outputs a baseband signal to transmitter 416;
MIMO transmit processor 441 outputs analog transmit beamforming vectors to transmitter 416;
a transmitter 416 for converting the baseband signals provided by MIMO transmit processor 441 into radio frequency signals and transmitting them via antenna 420; each transmitter 416 samples a respective input symbol stream to obtain a respective sampled signal stream; each transmitter 416 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downlink signal; analog transmit beamforming is processed in transmitter 416.
In the downlink transmission, the processing related to the user equipment (UE450) may include:
receiver 456 is configured to convert radio frequency signals received via antenna 460 into baseband signals for provision to MIMO detector 472; analog receive beamforming is processed in the receiver 456;
a MIMO detector 472 for MIMO detection of the signals received from receiver 456, providing a MIMO detected baseband signal to receive processor 452;
the receive processor 452 extracts analog receive beamforming related parameters to output to the MIMO detector 472, and the MIMO detector 472 outputs analog receive beamforming vectors to the receiver 456;
receive processor 452 performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, etc.;
controller/processor 490 receives the bit stream output by receive processor 452 and provides packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement the L2 layer protocol for the user plane and control plane;
the controller/processor 490 may be associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium;
controller/processor 490 passes control information for downlink reception resulting from the processing of uplink transmissions by transmit processor 455 to receive processor 452.
The first information in this application is generated by transmit processor 415 or the upper layer packets to controller/processor 440. A MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the first information output by the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 will receive via antenna 460, perform analog receive beamforming to obtain a radio frequency signal associated with the first information, and convert the radio frequency signal to a baseband signal for provision to MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. The receive processor 452 may process the baseband signal from the MIMO detector 472 to obtain the first information, or may output the first information to the controller/processor 490.
The second information in this application is generated by the transmit processor 415. A MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the second information output from the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 will receive via antenna 460, perform analog receive beamforming to obtain rf signals associated with the second information, and convert to baseband signals for MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. The receiving processor 452 processes the baseband signal output from the MIMO detector 472 to obtain the second information.
The first wireless signal in this application is generated by the transmit processor 415. A MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the first wireless signal output by the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 performs analog receive beamforming on the received signal via antenna 460 to obtain a radio frequency signal associated with the first wireless signal, which is converted to a baseband signal and provided to MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. The receiving processor 452 processes the baseband signal output from the MIMO detector 472 to obtain the first wireless signal.
Third information in this application is generated by transmit processor 415 or upper layer packets to controller/processor 440. A MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the third information output from the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 performs analog receive beamforming on the received signal via antenna 460 to obtain a radio frequency signal associated with the third information, and converts the radio frequency signal to a baseband signal for MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. The receive processor 452 may process the baseband signal output by the MIMO detector 472 to obtain the third information, or output the third information to the controller/processor 490.
In uplink transmission, the processing related to the user equipment (UE450) may include:
a data source 467 provides upper layer packets to the controller/processor 490, the controller/processor 490 providing packet header compression, encryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement the L2 layer protocol for the user plane and the control plane; the upper layer packet may include data or control information, such as UL-SCH (Uplink Shared Channel);
the controller/processor 490 may be associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium;
controller/processor 490 passes control information for uplink transmission, resulting from processing of downlink reception by receive processor 452, to transmit processor 455;
a transmit processor 455 receives the output bit stream of the controller/processor 490, and performs various Signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, and physical layer control signaling (including PUCCH, SRS (Sounding Reference Signal)) generation, etc.;
a MIMO transmit processor 471 performs spatial processing (e.g., multi-antenna precoding, digital beamforming) on the data symbols, control symbols, or reference signal symbols, and outputs a baseband signal to the transmitter 456;
the MIMO transmit processor 471 outputs the analog transmit beamforming vectors to the transmitter 457;
a transmitter 456 for converting baseband signals provided by MIMO transmit processor 471 into radio frequency signals and transmitting them via antenna 460; each transmitter 456 samples a respective input symbol stream to produce a respective sampled signal stream. Each transmitter 456 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain an uplink signal. Analog transmit beamforming is processed in transmitter 456.
In uplink transmission, the processing related to the base station apparatus (410) may include:
receiver 416 is used to convert the radio frequency signals received through antenna 420 into baseband signals for MIMO detector 442; analog receive beamforming is processed in receiver 416;
a MIMO detector 442 for MIMO detecting signals received from receiver 416, and providing MIMO detected symbols to receive processor 442;
MIMO detector 442 outputs analog receive beamforming vectors to receiver 416;
receive processor 412 performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, among others;
controller/processor 440 receives the bitstream output by receive processor 412, provides packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and control plane;
the controller/processor 440 may be associated with a memory 430 that stores program codes and data. Memory 430 may be a computer-readable medium;
controller/processor 440 passes control information for uplink transmission to receive processor 412 resulting from processing of downlink transmission by transmit processor 415;
the fourth information in this application is generated by the upper layer packet to the controller/processor 490. The MIMO transmit processor 471 performs multi-antenna precoding on the baseband signals associated with the fourth information output from the transmit processor 455. The transmitter 456 converts the baseband signal provided from the MIMO transmit processor 471 into a radio frequency signal, performs analog transmit beamforming, and transmits the radio frequency signal via the antenna 460. The receiver 416 performs analog receive beamforming on the rf signal received by the antenna 420 to obtain a rf signal related to the fourth information, and converts the rf signal into a baseband signal to be provided to the MIMO detector 442. MIMO detector 442 performs MIMO detection on the signals received from receiver 416. The receive processor 412 outputs the baseband signal output by the MIMO detector 442 to the controller/processor 440 to obtain the third information, and processes the third information to obtain the fourth information.
As an embodiment, the UE450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the UE450 apparatus at least: receiving first information and second information within a first time interval; wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As an 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: receiving first information and second information within a first time interval; wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As one embodiment, the gNB410 apparatus 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. The gNB410 apparatus at least: transmitting first information and second information within a first time interval; wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As an embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting first information and second information within a first time interval; wherein the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted prior to the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As an embodiment, the UE450 corresponds to a user equipment in the present application.
As an embodiment, the gNB410 corresponds to a base station in the present application.
As one example, at least the first three of transmit processor 415, MIMO transmitter 441, transmitter 416 and controller/processor 440 may be used to transmit the first information in this application.
As one example, at least the first three of receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 may be configured to receive the first information in this application.
For one embodiment, transmit processor 415, MIMO transmitter 441 and transmitter 416 are used to transmit the second information in this application.
For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to receive the second information in this application.
As one embodiment, the transmit processor 415, MIMO transmitter 441, and transmitter 416 are used to transmit the first wireless signal in this application.
For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to receive a first wireless signal in the present application.
As one example, at least the first three of transmit processor 415, MIMO transmitter 441, transmitter 416 and controller/processor 440 may be used to transmit third information in the present application.
As one example, at least the first three of receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 may be configured to receive third information in this application.
As one example, at least the first three of the transmit processor 455, MIMO transmitter 471, transmitter 456, and controller/processor 490 may be used to transmit the fourth information in this application.
As an example, at least the first three of receiver 416, MIMO detector 442, receive processor 412, and controller/processor 440 may be used to receive the fourth information in this application.
Example 5
Embodiment 5 illustrates a flow chart of wireless signal transmission according to the present application, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintaining base station for UE U2. The steps identified by blocks F1, F2, and F3 are optional.
For theBase station N1The fourth information is received in step S11 and sent in step S12Third information is transmitted, the first information is transmitted in step S13, the second information is transmitted in a first time interval in step S14, and the first wireless signal is transmitted in the first time interval in step S15.
For theUE U2The fourth information is transmitted in step S21, the third information is received in step S22, the first information is received in step S23, the second information is received in step S24 during a first time interval, and the first wireless signal is received in step S25 during the first time interval.
In embodiment 5, the second information is used by U2 to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used by U2 to determine one of { the first pool of time resources includes a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As a sub-embodiment, U2 receives a first block of bits in the first time interval, a first field and a second field in the first block of bits being used to indicate the first information and the second information, respectively, the first field comprising only one bit.
As a sub-embodiment, the step in block F3 exists, the same antenna port group is used by N1 to transmit a second reference signal group and the first wireless signal, the first information is used by U2 to determine the time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
As a sub-embodiment, the step in block F2 exists, the third information is used by U2 to determine the starting instant of the second time interval.
As a sub-embodiment, the time resource occupied by the channel carrying the second information is used by U2 to determine the starting time of the second time interval.
As a sub-embodiment, the third information is used by U2 to determine a time offset between the time resource occupied by the channel carrying the second information and the start time of the second time interval.
As a sub-embodiment, the step in block F1 is present, the fourth information being used by N1 to determine time information related to the transcoding capabilities of the user equipment, the fourth information being related to the starting instant of the second time interval.
The sub-embodiments described above can be combined arbitrarily without conflict.
Example 6
Example 6 illustrates the first time interval and the second time interval, as shown in fig. 6.
In embodiment 6, the first time interval includes time resources occupied by 14 consecutive OFDM symbols, wherein the time resources occupied by the first 3 OFDM symbols constitute the control domain, and the time resources occupied by the last 11 OFDM symbols constitute the data domain. The time resources on the control domain are candidate time resources of the PDCCH, and the time resources on the data domain are candidate time resources of the PDSCH. The second time interval is over the data field. The end time of the second time interval is the same as the end time of the data field within the first time interval.
As an embodiment, the second time interval is the data field.
As an embodiment, the start time of the second time interval is later than the start time of the data field.
As an embodiment, the second time interval comprises a number of OFDM symbols less than a number of OFDM symbols comprised by the data field.
Example 7
Embodiment 7 illustrates a first time resource pool, as shown in fig. 7. In fig. 7, the diagonal filled boxes are time resources in the first time resource pool.
In example 7, the second time interval is a time resource within the first time interval, and the first time resource pool has two cases. In a first case, the first pool of time resources comprises a second time interval; in a second case, the first pool of time resources is orthogonal to the first time interval. Second information received by the UE during the first time interval is used to determine: the transmission beam used for transmitting the first reference signal is used for transmitting a radio signal transmitted in the first time resource pool. The first information received by the UE is used to determine which of the first and second cases the first time resource pool is in. The first information and the second information are sent before the first time resource pool.
As an embodiment, the first time interval is one subframe.
As an embodiment, the time resources on the first pool of time resources are candidate time resources for PDSCH.
As an embodiment, PDCCH is used to transmit the second information.
As an embodiment, the first information is an RRC IE.
Example 8
Embodiment 8 illustrates a block diagram of a processing device in a UE, as shown in fig. 8. In fig. 8, the UE processing apparatus 800 is mainly composed of a first transceiver module 801.
In embodiment 8, the first transceiver module 801 receives the first information and receives the second information over a first time interval.
In embodiment 8, the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As a sub-embodiment, the first transceiver module 801 receives a first bit block in the first time interval, a first field and a second field in the first bit block are used to indicate the first information and the second information, respectively, and the first field includes only one bit.
As a sub-embodiment, the first transceiver module 801 receives the first wireless signal during the first time interval; wherein the same antenna port group is used for transmitting a second reference signal group and the first wireless signal, and the first information is used for determining time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
As a sub-embodiment, the first transceiver module 801 receives the third information; wherein the third information is used to determine a starting instant of the second time interval.
As a sub-embodiment, the time resource occupied by the channel carrying the second information is used to determine the starting time of the second time interval.
As a sub-embodiment, the third information is used to determine a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval.
As a sub-embodiment, the first transceiver module 801 transmits the fourth information; wherein the fourth information is used for determining time information related to the decoding capability of the user equipment, the fourth information being related to a starting instant of the second time interval.
Example 9
Embodiment 9 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 9. In fig. 9, the base station processing apparatus 900 is mainly composed of a second transceiver module 901.
In embodiment 9, the second transceiver module 901 transmits the first information and transmits the second information within the first time interval.
In embodiment 9, the second information is used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the second time interval is within the first time interval; the second information is sent before a start time of the second time interval.
As a sub-embodiment, the second transceiver module 901 transmits a first bit block in the first time interval, wherein a first field and a second field in the first bit block are used to indicate the first information and the second information, respectively, and the first field includes only one bit.
As a sub-embodiment, the second transceiver module 901 transmits the first wireless signal in the first time interval; wherein the same antenna port group is used for transmitting a second reference signal group and the first wireless signal, and the first information is used for determining time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
As a sub embodiment, the second transceiver module 901 transmits the third information; wherein the third information is used to determine a starting instant of the second time interval.
As a sub-embodiment, the time resource occupied by the channel carrying the second information is used to determine the starting time of the second time interval.
As a sub-embodiment, the third information is used to determine a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval.
As a sub embodiment, the second transceiver module 901 receives the fourth information; wherein the fourth information is used for determining time information related to the decoding capability of the user equipment, the fourth information being related to a starting instant of the second time interval.
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. UE and terminal in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, MTC (Machine Type Communication ) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. The base station in the present application includes, but is 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 application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A method in a user equipment for wireless communication, comprising:
-receiving first information;
-receiving second information within a first time interval;
wherein a physical layer downlink control channel is used to transmit the second information, the second information being used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the meaning of the phrase first pool of time resources orthogonal to the first time interval includes: the starting time of the first time resource pool is later than the ending time of the first time interval; the second time interval is within the first time interval, and the second information is sent before a start time of the second time interval.
2. The method of claim 1, wherein the UE receives a first bit block in the first time interval, wherein a first field and a second field of the first bit block are used to indicate the first information and the second information, respectively, and wherein the first field comprises only one bit.
3. The method according to claim 1 or 2, comprising:
-receiving a first wireless signal within the first time interval;
wherein the same antenna port group is used for transmitting a second reference signal group and the first wireless signal, and the first information is used for determining time resources occupied by the second reference signal group; the first pool of time resources comprises the second time interval if the time resources occupied by at least one reference signal in the second set of reference signals is within the second time interval; the first pool of time resources includes the second time interval if the time resources occupied by one reference signal is not present in the second set of reference signals within the second time interval.
4. The method according to any one of claims 1 to 3, comprising:
-receiving third information;
wherein the third information is used to determine a starting instant of the second time interval.
5. The method of claim 4, wherein the third information is used for determining a time offset between a time resource occupied by a channel carrying the second information and a start time of the second time interval.
6. The method according to any of claims 1 to 5, wherein the time resource occupied by the channel carrying the second information is used for determining the starting instant of the second time interval.
7. The method according to any one of claims 1 to 6, comprising:
-transmitting the fourth information;
wherein the fourth information is used for determining time information related to the decoding capability of the user equipment, the fourth information being related to a starting instant of the second time interval.
8. A method in a base station device for wireless communication, comprising:
-transmitting the first information;
-transmitting second information in a first time interval;
wherein a physical layer downlink control channel is used to transmit the second information, the second information being used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the meaning of the phrase first pool of time resources orthogonal to the first time interval includes: the starting time of the first time resource pool is later than the ending time of the first time interval; the second time interval is within the first time interval, and the second information is sent before a start time of the second time interval.
9. A user device for wireless communication, comprising:
-a first transceiver module receiving first information and second information during a first time interval;
wherein a physical layer downlink control channel is used to transmit the second information, the second information being used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the meaning of the phrase first pool of time resources orthogonal to the first time interval includes: the starting time of the first time resource pool is later than the ending time of the first time interval; the second time interval is within the first time interval, and the second information is sent before a start time of the second time interval.
10. A base station device for wireless communication, comprising:
-a second transceiver module for transmitting the first information and for transmitting the second information during a first time interval;
wherein a physical layer downlink control channel is used to transmit the second information, the second information being used to determine that a first reference signal is spatially correlated with a wireless signal transmitted in a first pool of time resources, the first reference signal being transmitted before the second information; the first information is used to determine one of { the first pool of time resources comprises a second time interval, the first pool of time resources is orthogonal to the first time interval }; the meaning of the phrase first pool of time resources orthogonal to the first time interval includes: the starting time of the first time resource pool is later than the ending time of the first time interval; the second time interval is within the first time interval, and the second information is sent before a start time of the second time interval.
CN202011436605.7A 2017-09-07 2017-09-07 Method and device in user equipment and base station for wireless communication Pending CN112600601A (en)

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