CN114499810A - Method and device used in user equipment and base station for wireless communication - Google Patents

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

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Publication number
CN114499810A
CN114499810A CN202210117518.8A CN202210117518A CN114499810A CN 114499810 A CN114499810 A CN 114499810A CN 202210117518 A CN202210117518 A CN 202210117518A CN 114499810 A CN114499810 A CN 114499810A
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China
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multiple access
access signature
reference signal
signal
time
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陈晋辉
张晓博
杨林
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • 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

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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 a user equipment, a base station and the like used for wireless communication. The user equipment generates a first data signal and a first reference signal and then transmits a first wireless signal; a first multiple access signature is used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups; the first wireless signal carries the first reference signal and the first data signal; the first wireless signal occupies a first set of time-frequency resource particles; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set. The method and the device are beneficial to reducing the complexity of terminal implementation, reducing the signaling overhead for informing the antenna port and improving the channel estimation quality.

Description

Method and device used 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: year 2018, month 05 and 25
- -application number of the original application: 201810512616.5
The invention of the original application is named: method and device used in user equipment and base station for wireless communication
Technical Field
The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a method and apparatus for uplink transmission of multiple access signatures.
Background
In a conventional 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) system, an orthogonal multiple Access is often used for uplink transmission at a terminal side, and in the discussion of 5G NR (New Radio Access Technology), a plurality of terminals may be accessed by using a non-orthogonal multiple Access Technology, so as to increase the number of user equipments performing uplink transmission simultaneously, and therefore, the number of uplink DMRS (Demodulation Reference signals) needs to be increased to match the number.
Disclosure of Invention
A large number of uplink transmissions performed simultaneously need to carry different DMRSs to distinguish terminals and distinguish corresponding terminals, which may lead to a problem of how to simplify selection of DMRSs, improve channel estimation performance, and reduce signaling overhead.
In view of the above, the present application discloses a solution. Without conflict, embodiments and features in embodiments in the user equipment of the present application may be applied to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
The scheme discloses a method used in user equipment of wireless communication, which is characterized by comprising the following steps:
generating a first data signal and a first reference signal, a first multiple access signature being used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
transmitting a first wireless signal, the first wireless signal carrying the first reference signal and the first data signal;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As an example, one benefit of the above approach is that: reference signal selection complexity is reduced by associating uplink multiple access signatures with patterns or spreading sequences of reference signals.
As an example, another benefit of the above method is: signaling overhead for indicating reference signal selection is reduced by associating an uplink multiple access signature with a pattern or spreading sequence of reference signals.
As an example, a further benefit of the above method is that: the quality of the channel estimation is increased by associating the uplink multiple access signature with a pattern or spreading sequence of the reference signal.
As an example, the essence of the above method is: the uplink multiple access signature is used to define the selection range of the pattern or spreading sequence of the uplink reference signal.
According to an aspect of the application, the method is characterized in that the multiple access signature comprises at least one of a spreading sequence, a mapping constellation, an interleaving table and a scrambling sequence.
According to an aspect of the application, the above method is characterized in that K reference signal subsets are in one-to-one correspondence with the K multiple access signature groups, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, to which the first reference signal belongs.
According to one aspect of the application, the method described above is characterized by comprising:
receiving first control information indicating a first reference signal index used to determine the first reference signal from the first subset of reference signals.
According to one aspect of the application, the method described above is characterized by comprising:
receiving second control information indicating a second subset of reference signals from among a subset of M reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first set of multiple access signatures being used to determine the first reference signal from the second subset of reference signals.
As an example, the above method has the benefits of: reducing signaling overhead for a base station to indicate uplink demodulation reference signals.
According to one aspect of the application, the method described above is characterized by comprising:
receiving third control information, the third control information being used to indicate the first multiple access signature.
As an example, the above method has the benefits of: the base station optimizes system performance by indicating multiple access signatures.
According to an aspect of the application, the above method is characterized in that the identity of the user equipment is used for determining the first multiple access signature.
As an example, the essence of the above method is that: further reducing signaling overhead and reducing delay.
The application discloses a method used in a base station device for wireless communication, which is characterized by comprising the following steps:
receiving a first wireless signal, the first wireless signal carrying a first reference signal and a first data signal;
recovering a first bit block, a first multiple access signature being used for generating the first data signal based on the first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
According to an aspect of the application, the method is characterized in that the multiple access signature comprises at least one of a spreading sequence, a mapping constellation, an interleaving table and a scrambling sequence.
According to an aspect of the application, the above method is characterized in that K reference signal subsets are in one-to-one correspondence with the K multiple access signature groups, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, to which the first reference signal belongs.
According to one aspect of the application, the method described above is characterized by comprising:
transmitting first control information indicating a first reference signal index used to determine the first reference signal from the first subset of reference signals.
According to one aspect of the application, the method described above is characterized by comprising:
transmitting second control information indicating a second subset of reference signals from among a subset of M reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first set of multiple access signatures being used to determine the first reference signal from the second subset of reference signals.
According to one aspect of the application, the method described above is characterized by comprising:
transmitting third control information, the third control information being used to indicate the first multiple access signature.
According to one aspect of the application, the above method is characterized in that the identity of the sender of the first wireless signal is used for determining the first multiple access signature.
The application discloses a user equipment used for wireless communication, characterized by comprising:
a first processor module to generate a first data signal and a first reference signal, a first multiple access signature being used to generate the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
a first transceiver module to transmit a first wireless signal, the first wireless signal carrying the first reference signal and the first data signal;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource particles are associated with the first multiple access signature group, or the spreading sequence used for generating the first reference signal is associated with the first multiple access signature group.
As an embodiment, the user equipment used for wireless communication described above is characterized in that the multiple access signature comprises at least one of a spreading sequence, a mapping constellation, an interleaving table and a scrambling sequence.
As an embodiment, the user equipment used for wireless communication is characterized in that K reference signal subsets are in one-to-one correspondence with the K multiple access signature groups, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, and the first reference signal belongs to the first reference signal subset.
As an embodiment, the above user equipment for wireless communication is characterized in that the first transceiver module receives first control information indicating a first reference signal index used for determining the first reference signal from the first subset of reference signals.
As an embodiment, the above user equipment for wireless communication is characterized in that the first transceiver module receives second control information indicating a second subset of reference signals from M subsets of reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first set of multiple access signatures is used for determining the first reference signal from the second subset of reference signals.
As an embodiment, the above user equipment for wireless communication is characterized in that the first transceiver module receives third control information, the third control information being used to indicate the first multiple access signature.
As an embodiment, the above user equipment used for wireless communication is characterized in that the identity of the user equipment is used for determining the first multiple access signature.
The application discloses a base station device used for wireless communication, characterized by comprising:
a second transceiver module to receive a first wireless signal, the first wireless signal carrying a first reference signal and a first data signal;
a second processor module to recover a first bit block, a first multiple access signature being used to generate the first data signal based on the first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As an embodiment, the base station apparatus used for wireless communication described above is characterized in that the multiple access signature includes at least one of a spreading sequence, a mapping constellation, an interleaving table, and a scrambling sequence.
As an embodiment, the above-mentioned base station apparatus used for wireless communication is characterized in that K reference signal subsets correspond to the K multiple access signature groups one to one, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, and the first reference signal belongs to the first reference signal subset.
As an embodiment, the base station device used for wireless communication described above is characterized in that the second transceiver module transmits first control information indicating a first reference signal index used for determining the first reference signal from the first reference signal subset.
As an embodiment, the above base station apparatus for wireless communication is characterized in that the second transceiver module transmits second control information indicating a second reference signal subset from M reference signal subsets, M being a positive integer greater than 1, the second reference signal subset including the first reference signal, the first multiple access signature group being used for determining the first reference signal from the second reference signal subset.
As an embodiment, the base station apparatus for wireless communication described above is characterized in that the second transceiver module transmits third control information, the third control information being used to indicate the first multiple access signature.
As an embodiment, the above base station apparatus for wireless communication is characterized in that the identification of the first wireless signal sender is used to determine the first multiple access signature.
As an example, compared with the conventional scheme, the method has the following advantages:
reducing the complexity of the terminal implementation;
reducing the signaling overhead for notifying antenna ports;
improving the channel estimation quality;
reducing interference between upstream multiple users.
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 with reference to the accompanying drawings in which:
fig. 1 shows a flow diagram of a first wireless signal 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 an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;
figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;
FIG. 5 shows a flow diagram of wireless transmission according to one embodiment of the present application;
FIG. 6 shows a schematic diagram of a first wireless signal generation according to an embodiment of the present application;
FIG. 7 shows a schematic diagram of a first multiple access signature according to an embodiment of the present application;
fig. 8 is a diagram illustrating association between time-frequency resources occupied by a first reference signal in a first set of time-frequency resource elements and a first multiple access signature according to an embodiment of the present application;
fig. 9 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;
fig. 10 shows a block diagram of a processing device for use 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 the first information, as shown in fig. 1.
In embodiment 1, the user equipment in the present application first generates a first data signal and a first reference signal, and then transmits a first radio signal; a first multiple access signature is used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; the first wireless signal carries the first reference signal and the first data signal; wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, PUSCH (Physical Uplink Shared Channel) is used for transmitting the first data signal.
As a sub-embodiment, the transmission of the first wireless signal is granted by the base station (granted).
As a sub-embodiment, the transmission of the first wireless signal is grant free.
As a sub-embodiment, the first set of time-frequency Resource elements is composed of an integer number of Resource Elements (REs).
As a sub-embodiment, the resource element is the smallest unit of time-frequency resource allocation.
As a sub-embodiment, the first set of time-frequency Resource elements includes an integer number of Resource Blocks (RBs), and one Resource Block includes a plurality of Resource elements.
As a sub-embodiment, one resource block includes 12 resource elements consecutive in the frequency domain.
As a sub-embodiment, the first set of time frequency resource elements is indicated by a base station.
As a sub-embodiment, the first set of time-frequency resource elements is determined by the user equipment.
As a sub-embodiment, the first set of time-frequency resource elements belongs to a first resource element pool, the first resource element pool is indicated by a base station, and the user equipment determines the first set of time-frequency resource elements from the first resource element pool.
As a sub-embodiment, the first data signal carries data.
As a sub-embodiment, the first data signal carries high level signaling.
As a sub-embodiment, the first bit block is a channel coded bit block.
As a sub-embodiment, the symbols of the first bit block after constellation mapping are spread to generate the first data signal, and the first multiple access signature comprises a spreading sequence used to spread the first bit block.
As a sub-embodiment, the symbols of the first bit block after constellation mapping are interleaved to generate the first data signal, and the first multiple access signature includes an interleaving table used for interleaving the symbols of the first bit block after constellation mapping.
As a sub-embodiment, the first block of bits generates the first data signal after being scrambled, the first multiple access signature includes a scrambling sequence used to scramble the first block of bits.
As a sub-embodiment, the first block of bits generates the first data signal after modulation mapping, and the first multiple access signature includes a constellation used for modulation mapping.
As a sub-embodiment, the first reference signal is an uplink DMRS.
As a sub-embodiment, the time-frequency resources occupied by the first reference signal and the first data signal are orthogonal.
As a sub-embodiment, a pattern (pattern) of the first reference signal in the first set of time-frequency resource elements is associated with the first multiple access signature set.
As a sub-embodiment, a pattern (pattern) of the first reference signal in the first set of time-frequency resource elements belongs to a pattern in a first reference signal pattern group, the first reference signal pattern group is one of K reference signal pattern groups, and the K reference signal pattern groups are in one-to-one correspondence with the K multiple access signatures.
As a sub-embodiment, the first reference signal pattern group comprises a plurality of reference signal patterns.
As a sub-embodiment, the first reference signal pattern group value comprises one reference signal pattern.
As a sub-embodiment, the first multiple access signature group is used to determine a delta in 6.4.1.1.3 in 3GPP TS 38.211 V15.0.0.
As a sub-embodiment, a spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, the first reference signal employs a first spreading sequence, the first spreading sequence belongs to a first spreading sequence group, the first spreading sequence group is one of K spreading sequence groups, and the K spreading sequence groups are in one-to-one correspondence with the K multiple access signature groups.
As a sub-embodiment, the first set of spreading sequences comprises a plurality of spreading sequences.
As a sub-embodiment, the first set of spreading sequences comprises only one spreading sequence.
As a sub-embodiment, a first spreading sequence is used to spread the first sequence to generate the first reference signal.
As a sub-embodiment, the first sequence is a pseudo-random sequence.
As a sub-embodiment, the first sequence is a Zadoff-Chu sequence.
As a sub-embodiment, the extension means that the length of the first extension sequence is greater than the length of the first sequence.
As a sub-embodiment, the first spreading sequence is from w in 6.4.1.1.3 in 3GPP TS 38.211V15.0.0f(k′),wt(l ') wherein k ' is 0,1, l ' is 0, 1.
As a sub-embodiment, the first spreading sequence is from w in 6.4.1.1.3 in 3GPP TS 38.211V15.0.0t(l ') wherein l' is 0, 1.
As a sub-embodiment, the first multiple access signature group is used to determine an antenna port number corresponding to the first reference signal.
As a sub-embodiment, K antenna port number groups correspond one-to-one to the K multiple access signature groups.
As a sub-embodiment, one antenna port number group includes a plurality of antenna port numbers.
As a sub-embodiment, a multiple access signature group includes a plurality of multiple access signatures.
As a sub-embodiment, an antenna port number group includes only one antenna port number.
As a sub-embodiment, a multiple access signature set comprises only one multiple access signature.
As a sub-embodiment, the antenna port number in the K antenna port number groups is a candidate antenna port number of the PUSCH.
As a sub-embodiment, the antenna port number is p in 6.4.1.1.3 in 3GPP TS 38.211 V15.0.0.
As a sub-embodiment, the same antenna port is used for transmitting the first reference signal and the first data signal.
As a sub-embodiment, within one subframe, the antenna port numbers correspond to the reference signals one to one.
As a sub-embodiment, two signals transmitted via the same antenna port means that the channel experienced by one signal can be used to infer the channel experienced by the other signal.
As a sub-embodiment, the same precoding matrix is used for precoding the first data signal and the first reference signal, respectively.
As a sub-embodiment, the multiple access signature includes at least one of a spreading sequence, a mapping constellation, an interleaving table, and a scrambling sequence.
As a sub-embodiment, K reference signal subsets correspond to the K multiple access signature groups one to one, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, and the first reference signal belongs to the first reference signal subset.
As a sub-embodiment, the user equipment randomly selects the first reference signal from the first subset of reference signals.
As a sub-embodiment, the user equipment receives first control information indicating a first reference signal index used to determine the first reference signal from the first subset of reference signals.
As a sub-embodiment, a PDCCH (Physical Downlink Control Channel) is used to carry the first Control information.
As a sub-embodiment, RRC (Radio Resource Control) signaling is used to carry the first Control information.
As a sub-embodiment, the user equipment receives second control information indicating a second subset of reference signals from among a subset of M reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first set of multiple access signatures being used to determine the first reference signal from the second subset of reference signals.
As a sub-embodiment, a PDCCH (Physical Downlink Control Channel) is used to carry the second Control information.
As a sub-embodiment, RRC (Radio Resource Control) signaling is used to carry the second Control information.
As a sub-embodiment, the user equipment receives third control information, the third control information being used to indicate the first multiple access signature.
As a sub-embodiment, a PDCCH (Physical Downlink Control Channel) is used to carry the third Control information.
As a sub-embodiment, RRC (Radio Resource Control) signaling is used to carry the third Control information.
As a sub-embodiment, the identity of the user equipment is used to determine the first multiple access signature.
As a sub-embodiment, the Identity of the ue is an RNTI (Radio Network Temporary Identity) of the user.
As a sub-embodiment, the identifier of the ue is an IMSI (International Mobile Subscriber Identity) of the Subscriber.
Example 2
Embodiment 2 illustrates a network architecture as shown in fig. 2.
Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating 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, 5G-CNs (5G-Core networks, 5G Core networks)/EPCs (Evolved Packet cores) 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 the UE201 with an access point to the 5G-CN/EPC 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, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a terrestrial 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 is connected to the 5G-CN/EPC210 through an S1/NG interface. The 5G-CN/EPC210 includes MME/AMF/UPF211, other MME (Mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC 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 a sub-embodiment, the UE201 corresponds to the UE in the present application.
As a sub-embodiment, the gNB203 corresponds to the base station in this application.
As a sub-embodiment, the UE201 is a terminal supporting wireless communication over an unlicensed spectrum.
As a sub-embodiment, the UE201 is a terminal supporting grant free (grant free) transmission.
As a sub-embodiment, the UE201 is a terminal supporting beamforming.
As a sub-embodiment, the UE201 is a terminal supporting narrowband LBT.
As a sub-embodiment, the gNB203 supports wireless communication over unlicensed spectrum.
As a sub-embodiment, the gNB203 supports grant-less transmission.
As a sub-embodiment, the gNB203 supports beamforming-based uplink transmission.
Example 3
Embodiment 3 illustrates radio protocol architectures for the user plane and the control plane, as shown in fig. 3.
Fig. 3 is a schematic diagram illustrating an embodiment of a 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 (Hybrid Automatic Repeat reQuest). 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 a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.
As a sub-embodiment, the radio protocol architecture of fig. 3 is applicable to the base station in the present application.
As a sub-embodiment, the first data signal in the present application is generated in the PHY 301.
As a sub-embodiment, the first reference signal in the present application is generated in the PHY 301.
As a sub-embodiment, the first wireless signal in the present application is generated in the PHY 301.
As a sub-embodiment, the first control information in the present application is generated in the PHY 301.
As a sub-embodiment, the second control information in the present application is generated in the PHY 301.
As a sub embodiment, the third control information in the present application is generated in the PHY 301.
As a sub-embodiment, the first control information in the present application is generated in the RRC sublayer 306.
As a sub-embodiment, the second control information in this application is generated in the RRC sublayer 306.
As a sub-embodiment, the third control information in the present application is generated in the RRC sublayer 306.
Example 4
Embodiment 4 illustrates a base station apparatus and a user equipment, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.
The base station apparatus (410) includes a controller/processor 440, memory 430, receive processor 412, transmit processor 415, transmitter/receiver 416, and antenna 420.
User equipment (450) includes controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, transmitter/receiver 456, and antenna 460.
In UL (Uplink) transmission, processing related to a base station apparatus (410) includes:
a receiver 416 receiving the radio frequency signal through its corresponding antenna 420, converting the received radio frequency signal to a baseband signal, and providing the baseband signal to the receive processor 412;
a receive processor 412 that 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;
a receive processor 412 that performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including multi-antenna reception, Despreading (Despreading), code division multiplexing, precoding, etc.;
a controller/processor 440 implementing L2 layer functions and associated memory 430 storing program codes and data;
the controller/processor 440 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450; upper layer packets from controller/processor 440 may be provided to the core network;
a controller/processor 440, which determines a target air interface resource that may be occupied by a target wireless signal, and sends the result to the receive processor 412; determining whether the target uplink wireless signal occupies the target air interface resource through blind detection; the target wireless signal comprises the first wireless signal in this application; the target air interface resource comprises at least one of { time domain resource, frequency domain resource and space resource } occupied by the first wireless signal, and the space resource corresponds to the first antenna port group; determining a space receiving parameter for receiving the first wireless signal according to the first antenna port group;
in UL transmission, processing related to a user equipment (450) includes:
a data source 467 that provides upper layer data packets to the controller/processor 490. Data source 467 represents all protocol layers above the L2 layer;
a transmitter 456 for transmitting a radio frequency signal via its respective antenna 460, converting the baseband signal into a radio frequency signal and supplying the radio frequency signal to the respective antenna 460;
a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, and physical layer signaling generation, etc.;
a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including multi-antenna transmission, Spreading, code division multiplexing, precoding, etc.;
controller/processor 490 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation of the gNB410, performs L2 layer functions for the user plane and control plane;
the controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410;
a controller/processor 490 that determines the target air interface resources occupied by the target wireless signal itself and sends the result to the transmit processor 455; the target wireless signal comprises the first wireless signal in this application; the target air interface resource comprises at least one of { time domain resource, frequency domain resource and space resource } occupied by the first wireless signal, and the space resource corresponds to the first antenna port group;
as a sub-embodiment, the UE450 apparatus comprises: 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: generating a first data signal and a first reference signal, a first multiple access signature being used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; transmitting a first wireless signal, the first wireless signal carrying the first reference signal and the first data signal; wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: generating a first data signal and a first reference signal, a first multiple access signature being used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; transmitting a first wireless signal, the first wireless signal carrying the first reference signal and the first data signal; wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, the gNB410 apparatus comprises: 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: receiving a first wireless signal, the first wireless signal carrying a first reference signal and a first data signal; recovering a first bit block, a first multiple access signature being used for generating the first data signal based on the first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-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: receiving a first wireless signal, the first wireless signal carrying a first reference signal and a first data signal; recovering a first bit block, a first multiple access signature being used for generating the first data signal based on the first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, the UE450 corresponds to a user equipment in the present application.
As a sub-embodiment, the gNB410 corresponds to a base station in the present application.
As a sub-embodiment, at least the former of the transmit processor 455 and the controller/processor 490 generates the first data signal and the first reference signal.
As a sub-embodiment, at least the first two of the transmitter 456, the transmit processor 455, and the controller/processor 490 transmit a first wireless signal.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the first control information.
As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the second control information.
As a sub-embodiment, at least the first two of the receiver 456, receive processor 452, and controller/processor 490 are used to receive third control information.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the first control information.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the second control information.
As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send third control information.
As a sub-embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive the first wireless signal.
As a sub-embodiment, at least the former of the receive processor 412 and the controller/processor 440 is used to recover the first bit block.
Example 5
Embodiment 5 illustrates a flow chart of a first wireless signal, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintaining base station for user equipment U2. In the figure, the steps in the box identified as F1, the box identified as F2, and the box identified as F3 are optional
For theBase station N1Third control information is transmitted in step S11, first control information is transmitted in step S12, second control information is transmitted in step S13, the first wireless signal is received in step S14, and the first bit block is restored in step S15.
For theUser equipment U2The third control information is received in step S21, the first control information is received in step S22, the second control information is received in step S23, the first data signal and the first reference signal are generated in step S24, and the first wireless signal is transmitted in step S25.
In embodiment 5, a first multiple access signature is used by U2 for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; the first wireless signal carries the first reference signal and the first data signal; the first wireless signal occupies a first set of time-frequency resource particles; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used by U2 to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, K reference signal subsets correspond to the K multiple access signature groups one to one, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, and the first reference signal belongs to the first reference signal subset.
As a sub-embodiment, the step in block F2 exists, the first control information indicates a first reference signal index used by U2 to determine the first reference signal from the first subset of reference signals.
As a sub-embodiment, the step in block F3 exists, the second control information indicates a second subset of reference signals from among a subset of M reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first multiple access signature group being used by U2 to determine the first reference signal from the second subset of reference signals.
As a sub-embodiment, the step in block F1 exists, the third control information is used by U2 to indicate the first multiple access signature.
As a sub-embodiment, the identity of the user equipment is used by U2 to determine the first multiple access signature.
Example 6
Embodiment 6 illustrates first wireless signal generation, as shown in fig. 6.
In embodiment 6, a first bit block in this application is subjected to multiple access signature to generate a first data signal in this application, and the first data signal is subjected to precoding and resource element mapping and then is carried by a first radio signal in this application; generating a first reference signal in the application after a first sequence is subjected to sequence expansion, wherein the first reference signal is carried by the first wireless signal after being subjected to precoding and resource element mapping; the first wireless signal occupies resource elements in a first set of time-frequency resource elements in the application; a first multiple access signature in the present application is used in a multiple access signature module for generating the first data signal based on the first bit block; the first multiple access signature is further used for selecting a first spreading sequence used for spreading the first sequence to generate the first reference signal, or for selecting a distribution of the resource elements used for carrying the first reference signal in the first set of time-frequency resource elements; the first wireless signal is transmitted by one or more antennas after passing through a multi-carrier symbol generation radio frequency circuit.
As a sub-embodiment, the first multiple access signature is used to select both a first spreading sequence and a distribution of resource elements used to carry the first reference signal in the first set of time-frequency resource elements.
As a sub-embodiment, the first bit block carries data or higher layer signaling, the first bit block is a channel coded output, and PUSCH is used to carry the first bit block.
As a sub-embodiment, PUSCH is used to carry the first data signal.
As a sub-embodiment, the same precoding matrix is used for precoding the first data signal and the first reference signal.
As a sub-embodiment, the first set of time-frequency resource elements includes an integer number of RBs.
As a sub-embodiment, the first sequence is a Zadoff-Chu sequence.
As a sub-embodiment, the first sequence is a pseudo-random sequence.
As a sub-embodiment, +1 and-1 constitute the first spreading sequence.
As a sub-embodiment, the multicarrier symbol generation is to generate an OFDM symbol.
As a sub-embodiment, the multicarrier symbol generation is to generate SC-OFDM symbols.
Example 7
Embodiment 7 illustrates a first multiple access signature in the present application, as shown in fig. 7.
In embodiment 7, the multiple access signature module of embodiment 6 includes one or more sub-modules for modulation mapping, interleaving, spreading and scrambling a first bit block, and a first multiple access signature of the application is used for the multiple access signature module, and the first multiple access signature includes one or more of a first constellation used for modulation mapping, a first interleaving sequence used for interleaving, a first spreading sequence used for spreading and a first scrambling sequence used for scrambling, which correspond to the sub-modules in the multiple access signature module.
As a sub-embodiment, the modulation mapping sub-module maps bits to a complex plane.
As a sub-embodiment, the modulation mapping refers to a modulation mapping step in Sparse Code Multiple Access (SCMA).
As a sub-embodiment, the interleaving sub-module rearranges constituent elements in the input sequence.
As a sub-embodiment, the interleaving refers to symbol-level interleaving after modulation mapping in interleaved partition Multiple Access (IDMA).
As a sub-embodiment, the extension sub-module extends the input sequence, and the length of the output sequence of the extension sub-module is greater than the length of the input sequence.
As a sub-embodiment, the first spreading sequence is a sparse sequence.
As a sub-embodiment, the first spreading sequence consists of 1 and-1.
As a sub-embodiment, the first spreading sequence consists of 1, -1 and 0.
As a sub-embodiment, the number of 0's in the first spreading sequence is greater than the number of non-zero elements.
As a sub-embodiment, the scrambling sub-module scrambles the input sequence, changes the value of each constituent element in the input sequence, and does not change the length of the input sequence.
As a sub-embodiment, the first scrambling sequence is a pseudo-random sequence.
As a sub-embodiment, the first scrambling sequence is an m-sequence.
Example 8
Embodiment 8 illustrates that the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with a first multiple access signature, as shown in fig. 8. In fig. 7, a square represents a time-frequency resource particle, a square filled with oblique lines represents a resource particle occupied by the first reference signal in the present application, and a square filled with gray represents a resource particle occupied by the first data signal in the present application.
In embodiment 8, the first reference signal in this application is a DMRS, and in the first set of resource elements in this application, the distribution of the time-frequency resource elements occupied by the DMRS in the DMRS pattern one and the distribution of the time-frequency resource elements occupied by the DMRS in the DMRS pattern two in the first set of resource elements are different. DMRS pattern #1 is associated with multiple access signature set #1, and DMRS pattern #2 is associated with multiple access signature set # 2. The multiple access signature set #1 is used to indicate DMRS pattern #1, and the multiple access signature set #2 is used to indicate DMRS pattern # 2. The multiple access signature set #1 or the multiple access signature set #2 includes the first multiple access signature in the present application. The same multiple access signature does not exist and belongs to the multiple access signature group #1 and the multiple access signature group # 2.
As a sub-embodiment, a multiple access signature group #1 and a multiple access signature group #2 are associated with a DMRS pattern group #1 and a DMRS pattern group #2, respectively, and the DMRS pattern #1 and the DMRS pattern #2 belong to the multiple access signature group #1 and the multiple access signature group #2, respectively.
Example 9
Embodiment 9 is a block diagram illustrating a processing apparatus in a user equipment, as shown in fig. 9. In fig. 9, the UE processing apparatus 900 is mainly composed of a first processor module 901 and a first transceiver module 902.
A first processor module 901 generating a first data signal and a first reference signal;
a first transceiver module 902, which transmits a first wireless signal;
in embodiment 9, a first multiple access signature is used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; the first wireless signal carries the first reference signal and the first data signal; wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, the multiple access signature includes at least one of a spreading sequence, a mapping constellation, an interleaving table, and a scrambling sequence.
As a sub-embodiment, K reference signal subsets correspond to the K multiple access signature groups one to one, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, and the first reference signal belongs to the first reference signal subset.
As a sub-embodiment, the first transceiver module 902 receives first control information indicating a first reference signal index used to determine the first reference signal from the first subset of reference signals.
As a sub-embodiment, the first transceiver module 902 receives second control information indicating a second subset of reference signals from a subset of M reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first set of multiple access signatures being used to determine the first reference signal from the second subset of reference signals.
As a sub-embodiment, the first transceiver module 902 receives third control information, which is used to indicate the first multiple access signature.
As a sub-embodiment, the identity of the user equipment is used for determining the first multiple access signature.
As a sub-embodiment, the first processor module 901 includes at least the former of the transmission processor 455 and the controller/processor 490 of embodiment 4.
As a sub-embodiment, the first transceiver module 902 includes at least two of the transmitter/receiver 456, the transmit processor 455, the receive processor 452, and the controller/processor 490 of embodiment 4.
Example 10
Embodiment 10 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 10. In fig. 10, the base station device processing apparatus 1000 mainly comprises a second transceiver module 1001 and a second processor module 1002.
The second transceiver module 1001 receives a first wireless signal.
The second handler module 1002 recovers the first bit block.
In embodiment 10, the first wireless signal carries a first reference signal and a first data signal; a first multiple access signature is used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1; the first wireless signal occupies a first set of time-frequency resource particles; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource elements are associated with the first multiple access signature set, or the spreading sequence used to generate the first reference signal is associated with the first multiple access signature set.
As a sub-embodiment, the multiple access signature includes at least one of a spreading sequence, a mapping constellation, an interleaving table, and a scrambling sequence.
As a sub-embodiment, K reference signal subsets correspond to the K multiple access signature groups one to one, the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, and the first reference signal belongs to the first reference signal subset.
As a sub-embodiment, the second transceiver module 1001 transmits first control information indicating a first reference signal index used to determine the first reference signal from the first subset of reference signals.
As a sub-embodiment, the second transceiver module 1001 transmits second control information indicating a second subset of reference signals from a subset of M reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first set of multiple access signatures being used to determine the first reference signal from the second subset of reference signals.
As a sub-embodiment, the second transceiver module 1001 transmits third control information, which is used to indicate the first multiple access signature.
As a sub-embodiment, the identity of the first wireless signal sender is used to determine the first multiple access signature.
As a sub-embodiment, the second transceiver module 1001 includes at least the first two of the receiver/transmitter 416, the receive processor 412, the transmit processor 415, and the controller/processor 440 of embodiment 4.
As a sub-embodiment, the second handler module 1002 includes at least the former of the receiving processor 412 and the controller/processor 440 of embodiment 4.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. User equipment, terminal and UE 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, Machine Type Communication (MTC) 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, a gNB (NR node B), a TRP (Transmitter Receiver Point), 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 user device configured for wireless communication, comprising:
a first processor module to generate a first data signal and a first reference signal, a first multiple access signature being used to generate the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
a first transceiver module to transmit a first wireless signal, the first wireless signal carrying the first reference signal and the first data signal;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource particles are associated with the first multiple access signature group, or a spreading sequence used for generating the first reference signal is associated with the first multiple access signature group; the first set of time-frequency resource elements includes an integer number of resource blocks, one resource block including a plurality of resource elements.
2. The UE of claim 1, wherein the multiple access signature comprises at least one of a spreading sequence, a mapping constellation, an interleaving table, and a scrambling sequence.
3. The UE of claim 1 or 2, wherein K reference signal subsets correspond to the K multiple access signature groups one to one, and wherein the first multiple access signature group corresponds to a first reference signal subset of the K reference signal subsets, and wherein the first reference signal belongs to the first reference signal subset.
4. The UE of claim 3, wherein the first transceiver module receives first control information indicating a first reference signal index used to determine the first reference signal from the first subset of reference signals.
5. The UE of any one of claims 1 to 4, wherein the first transceiver module receives second control information indicating a second subset of reference signals from a subset of M reference signals, M being a positive integer greater than 1, the second subset of reference signals including the first reference signal, the first set of multiple access signatures being used to determine the first reference signal from the second subset of reference signals.
6. The user equipment according to any of claims 1-5, wherein the first transceiver module receives third control information, the third control information being used to indicate the first multiple access signature.
7. The user equipment according to any of claims 1-6, wherein an identity of the user equipment is used for determining the first multiple access signature.
8. A base station device used for wireless communication, comprising:
a second transceiver module to receive a first wireless signal, the first wireless signal carrying a first reference signal and a first data signal;
a second processor module to recover a first bit block, a first multiple access signature being used to generate the first data signal based on the first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource particles are associated with the first multiple access signature group, or a spreading sequence used for generating the first reference signal is associated with the first multiple access signature group; the first set of time-frequency resource elements includes an integer number of resource blocks, one resource block including a plurality of resource elements.
9. A method in a user equipment used for wireless communication, comprising:
generating a first data signal and a first reference signal, a first multiple access signature being used for generating the first data signal based on a first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
transmitting a first wireless signal, the first wireless signal carrying the first reference signal and the first data signal;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource particles are associated with the first multiple access signature group, or a spreading sequence used for generating the first reference signal is associated with the first multiple access signature group; the first set of time-frequency resource elements includes an integer number of resource blocks, one resource block including a plurality of resource elements.
10. A method in a base station device used for wireless communication, comprising:
receiving a first wireless signal, the first wireless signal carrying a first reference signal and a first data signal;
recovering a first bit block, a first multiple access signature being used for generating the first data signal based on the first bit block, the first multiple access signature belonging to a first multiple access signature group, the first multiple access signature group being one of K multiple access signature groups, K being a positive integer greater than 1;
wherein the first wireless signal occupies a first set of time-frequency resource elements; the time-frequency resources occupied by the first reference signal in the first set of time-frequency resource particles are associated with the first multiple access signature group, or a spreading sequence used for generating the first reference signal is associated with the first multiple access signature group; the first set of time-frequency resource elements includes an integer number of resource blocks, one resource block including a plurality of resource elements.
CN202210117518.8A 2018-05-25 2018-05-25 Method and device used in user equipment and base station for wireless communication Pending CN114499810A (en)

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