CN112073098B

CN112073098B - UE supporting synchronization signal, method and device in base station

Info

Publication number: CN112073098B
Application number: CN202010922714.3A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2016-10-15
Filing date: 2016-10-15
Publication date: 2022-06-21
Anticipated expiration: 2036-10-15
Also published as: CN112073099A; CN107959646B; CN112073098A; CN107959646A

Abstract

The invention discloses a UE supporting synchronous signals, a method and a device in a base station. The UE first receives a first wireless signal on a first time-frequency resource and then receives a second wireless signal on a second time-frequency resource. Wherein the second time-frequency resource is one of K candidate resources, and a position of the second time-frequency resource in the K candidate resources is used for determining at least one of { first time length, R1 antenna ports }. The K is a positive integer greater than 1. { the length of the CP corresponding to the first radio signal, the length of the CP corresponding to the second radio signal } is equal to the first time length. And R1 is a positive integer.

Description

UE supporting synchronization signal, method and device in base station

The present application is a divisional application of the following original applications:

application date of the original application: 2016.10.15

- -application number of the original application: 201610899612.8

The invention of the original application is named: UE supporting synchronization signal, method and device in base station

Technical Field

The present invention relates to a method and an apparatus for downlink transmission in a wireless communication system supporting a synchronization signal, and more particularly, to a scheme and an apparatus for downlink transmission in a wireless communication system using MIMO (Multiple Input Multiple Output) technology.

Background

Large scale (Massive) MIMO has become a research hotspot for next generation mobile communications. In large-scale MIMO, multiple antennas form a narrow beam pointing to a specific direction by beamforming to improve communication quality. The beams formed by multi-antenna beamforming are generally narrow, so that the coverage of the synchronization signal is a problem to be solved.

A Beam Sweeping (Beam Sweeping) scheme is proposed in a #74bis conference of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network ) WG (Working Group) 1, that is, a base station transmits a synchronization signal for multiple times in a TDM (time Division Multiplexing) manner, and transmits a Beam for different directions each time.

Disclosure of Invention

The inventor found through research that when the synchronization signal is transmitted in a beam sweeping manner, since beams pointing in different directions need to be transmitted in a TDM manner, the transmission time required for the synchronization signal may increase. In order to reduce the transmission time required for the synchronization signal, the primary synchronization signal and the secondary synchronization signal may be multiplexed by FDM (Frequency Division Multiplexing), and such FDM-based Multiplexing causes difficulty in detecting the CP (Cyclic preamble) length. In addition, it is likely that CRS (Common Reference Signal) is not available in the next generation mobile communication system, and thus blind detection of an antenna port used for a broadcast Signal is another problem.

The present invention discloses a solution to the above problems. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE 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. Further, although the invention was originally intended for multi-antenna transmission, the invention is also applicable to single-antenna transmission.

The invention discloses a method in UE supporting synchronous signals, which comprises the following steps:

-a. receiving a first wireless signal on a first time-frequency resource;

-step b. receiving a second radio signal on a second time-frequency resource.

Wherein the second time-frequency resource is one of K candidate resources, and a position of the second time-frequency resource in the K candidate resources is used for determining at least one of { first time length, R1 antenna ports }. The K is a positive integer greater than 1. { the length of the CP corresponding to the first wireless signal, the length of the CP corresponding to the second wireless signal } is equal to the first time length. And R1 is a positive integer.

As an example, K is 2.

As one example, K is greater than 2.

As an embodiment, there are at least two candidate resources of the K candidate resources, the two candidate resources being orthogonal in frequency domain, the two candidate resources at least partially overlapping in time domain.

As an embodiment, the two candidate resources completely overlap in the time domain.

As an embodiment, the K candidate resources completely overlap in the time domain.

As an embodiment, the first time length is one of L1 candidate time lengths, the L1 being a positive integer greater than 1.

As an embodiment, the location of the second time-frequency resource in the K candidate resources and the first length of time are associated, and the UE determines the first length of time according to the location of the second time-frequency resource in the K candidate resources.

The embodiment has the advantages that extra information bits are not utilized to assist the UE in obtaining the CP length information, so that the signaling overhead is saved, and the transmission efficiency is improved.

As an embodiment, the positions of the second time-frequency resource in the K candidate resources and the R1 antenna ports are associated, the UE determines the R1 antenna ports according to the positions of the second time-frequency resource in the K candidate resources.

The embodiment has the advantages that no extra information bit is utilized to assist the UE to obtain the antenna port information, so that the signaling overhead is saved, and the transmission efficiency is improved.

As an embodiment, the location of the second time-frequency resource in the K candidate resources and { the first length of time, the R1 antenna ports } are associated, the UE determining { the first length of time, the R1 antenna ports } from the location of the second time-frequency resource in the K candidate resources.

As an embodiment, the first wireless signal and the second wireless signal are transmitted by a same antenna port group, the antenna port group comprising a positive integer number of antenna ports.

As an embodiment, the first time-frequency resource and the second time-frequency resource occupy the same time resource in the time domain, and the frequency resources occupied in the frequency domain are orthogonal (non-overlapping).

Specifically, according to one aspect of the present invention, the first wireless signal includes a first synchronization signal, and the second wireless signal includes a second synchronization signal.

As one embodiment, the first synchronization signal includes a synchronization sequence. As a sub-embodiment, the synchronization sequence comprises at least one of a { Zadoff-Chu sequence, a pseudo-random sequence }.

As an embodiment, the first synchronization signal is transmitted on a synchronization channel (i.e. a downlink channel that can only be used to carry synchronization signals). As a sub-embodiment, the Synchronization CHannel includes P-SCH (Primary Synchronization CHannel).

As one embodiment, the first Synchronization Signal includes a PSS (Primary Synchronization Signal).

For one embodiment, the first synchronization signal includes NB (Narrow Band) -PSS.

As one embodiment, the second synchronization signal includes a synchronization sequence. As a sub-embodiment, the synchronization sequence comprises at least one of a { pseudo-random sequence, Zadoff-Chu sequence }.

As an embodiment, the second synchronization signal is transmitted on a synchronization channel (i.e. a downlink channel that can only be used to carry synchronization signals). As a sub-embodiment, the Synchronization CHannel includes S-SCH (Secondary Synchronization CHannel).

As one embodiment, the second Synchronization Signal includes SSS (Secondary Synchronization Signal).

In one embodiment, the second synchronization signal includes an NB-SSS.

Specifically, according to one aspect of the present invention, the method further comprises the following steps:

-step c.

Wherein the third wireless signals are transmitted by the R1 antenna ports, the R1 being a positive integer.

As an embodiment, the information carried by the third radio signal is cell-common.

As an embodiment, the third wireless signal is transmitted on a cell common channel.

As an embodiment, the third wireless signal is transmitted on a broadcast channel (i.e. a downlink channel that can only be used to carry broadcast signals). As a sub embodiment, the Broadcast CHannel includes a PBCH (Physical Broadcast CHannel).

As one embodiment, the third wireless signal is used to determine a system time. As an example, the System time is indexed by SFN (System Frame Number).

As an embodiment, the third wireless signal includes { MIB (Master Information Block), SIB (System Information Block) }.

As one embodiment, the third wireless signal is transmitted on an NB-PBCH (for NB-IoT terminals).

Specifically, according to an aspect of the present invention, the step C further includes the steps of:

step C0. receives the first reference signal.

The first reference signal is used to determine downlink channel parameters corresponding to the R1 antenna ports, and the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by R2 antenna ports. At least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port. The R2 is a positive integer greater than the R1; or the R2 is equal to the R1.

As an embodiment, the R2 is greater than the R1.

As one example, the R2 is equal to the R1.

As an embodiment, for any given antenna port of the R1 antenna ports, the R2 sub-signals are used to determine downlink channel parameters corresponding to the any given antenna port.

As an embodiment, the Channel parameter is CIR (Channel Impulse Response).

As an embodiment, at least one of { the first time-frequency resource, the second time-frequency resource } is used for determining the R2 antenna ports.

As one embodiment, the first reference signal is wideband. As a sub-embodiment, the system bandwidth is divided into a positive integer number of frequency domain regions, and any one of the R2 sub-signals appears in all frequency domain regions within the system bandwidth, and the bandwidth corresponding to the frequency domain region is equal to the difference of the frequencies of the adjacent two appearing frequency units in any one of the R2 sub-signals.

As an embodiment, time domain resources occupied by the third radio signal and the first reference signal at least partially overlap.

As an embodiment, time domain resources occupied by the third wireless signal and the first reference signal are completely overlapped.

As an embodiment, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector. As a sub-embodiment, the beamforming vector corresponding to a first antenna port and the beamforming vector corresponding to a second antenna port cannot be assumed to be the same, and the first antenna port and the second antenna port are any two different antenna ports. As a sub-embodiment, the small scale characteristics of the wireless channel experienced by the signal transmitted by the first antenna port cannot be used to infer the small scale characteristics of the wireless channel experienced by the signal transmitted by the second antenna port.

Specifically, according to an aspect of the present invention, the step a further includes the steps of:

-a step A0. of determining the K candidate resources from the first time-frequency resource.

As an embodiment, the positions of the K candidate resources in the time domain are the same, the positions of the K candidate resources in the time domain and the position of the first time-frequency resource in the time domain are associated, and the positions of the K candidate resources in the frequency domain and the position of the first time-frequency resource in the frequency domain are associated.

As an embodiment, the positions of the K candidate resources in the time-frequency domain and the position of the first time-frequency resource in the time-frequency domain are associated.

Specifically, according to an aspect of the present invention, the step B further includes the steps of:

-step B0. monitoring the second wireless signal over the K candidate resources.

As an embodiment, the monitoring refers to blind detection, that is, detecting the received signal in each of the candidate resources, and if the detection result satisfies a given condition, determining that the detection is successful, otherwise, determining that the detection is failed. As a sub-embodiment, the given condition is that the detected signal energy is greater than a predetermined threshold. As a sub-embodiment, the given condition is that the decoding is correct by checking bits.

As an embodiment, the UE determines the first length of time by determining a position of the second time-frequency resource among the K candidate resources.

As an embodiment, the UE determines the R1 antenna ports by determining the position of the second time-frequency resource in the K candidate resources.

As an embodiment, the UE determines { the first length of time, the R1 antenna ports } by determining a location of the second time-frequency resource among the K candidate resources.

-a step a1. receiving K1 first synchronization signals;

the time domain resources occupied by the first time frequency resources and the time domain resources occupied by the K1 first synchronization signals are orthogonal, and the time domain resources occupied by any two first synchronization signals in the K1 first synchronization signals are orthogonal. The K1 is a positive integer.

As an embodiment, the first synchronization signals and the K1 first synchronization signals in the first wireless signals constitute K3 first synchronization signals, the K3 first synchronization signals are consecutive in a time domain, and the K3 is a sum of the K1 and 1.

As an example, the K3 first synchronization signals carry the same information.

As an embodiment, the K3 first synchronization signals correspond to the same synchronization sequence.

As an example, the orthogonal means not overlapping.

As an example, two wireless signals are orthogonal, meaning: the two wireless signals respectively occupy a positive integer number of RUs (Resource Unit), and there is no RU occupied by both the two wireless signals at the same time. The RU occupies the duration of one wideband symbol in the time domain and the bandwidth of one subcarrier spacing in the frequency domain. As a sub-embodiment, the duration of the one wideband symbol is the inverse of the subcarrier corresponding to the corresponding RU. As a sub-embodiment, the wideband symbol is one of { OFDM symbol, SC-FDMA symbol, SCMA symbol }.

As an embodiment, the K3 first synchronization signals are transmitted on the same carrier.

As an embodiment, the first wireless signal consists of the first synchronization signal, and the UE performs combining on the received first wireless signal and the K1 first synchronization signals. As a sub-embodiment, the UE performs at least one of { coherent detection, non-coherent detection } on the combined signal. As a sub-embodiment, the UE performs at least one of { coherent detection, non-coherent detection } on the first wireless signal and the K1 first synchronization signals, respectively, and then performs combining on the detection results.

In the above embodiment, the UE may improve the detection accuracy of the first synchronization signal included in the first wireless signal by performing combination on the first wireless signal and the K1 first synchronization signals.

As an embodiment, any two of the K3 first synchronization signals are QCLs (Quasi Co-Located).

As an embodiment, two wireless signals are the QCL means: the large-scale characteristics of a channel carrying one radio signal can be inferred from the large-scale characteristics (properties) of a channel carrying another radio signal. The large scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay) }.

-step b1. receiving K2 second synchronization signals.

The time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two second synchronization signals in the K2 second synchronization signals are orthogonal. The K2 is a positive integer less than or equal to the K1. For any given one of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K possible resources, and the position of the given time-frequency resource in the K possible resources is related to at least one of { the first length of time, the R1 antenna ports }.

As an embodiment, the K2 second synchronization signals and the second synchronization signal in the second wireless signal constitute K4 second synchronization signals.

As an embodiment, the K4 second synchronization signals are transmitted on the same carrier.

As an embodiment, the K4 second synchronization signals carry the same information.

As an embodiment, the K4 second synchronization signals correspond to the same synchronization sequence.

As an embodiment, for any two of the K4 second synchronization signals, the UE cannot assume that the two second synchronization signals are transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports.

As an embodiment, the antenna port group includes 1 antenna port.

As an embodiment, the number of antenna ports included in different antenna port groups may be different.

As an embodiment, the number of antenna ports comprised in different said antenna port groups is the same.

As an embodiment, the UE cannot assume that the two second synchronization signals are transmitted by the same antenna port group means that: the small scale characteristics of the wireless channel experienced by the signal transmitted by the first antenna port cannot be used by the UE to infer the small scale characteristics of the wireless channel experienced by the signal transmitted by the second antenna port. The first antenna port is any one antenna port used for transmitting one second synchronization signal, the second antenna port is any one antenna port used for transmitting another second synchronization signal, and the small-scale characteristic includes a channel impulse response.

As an embodiment, the antenna port is formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna port form a beamforming vector. The UE cannot assume that the two second synchronization signals are transmitted by the same antenna port group, which means: the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port cannot be assumed to be the same.

In the above embodiment, any two of the K4 second synchronization signals correspond to different beamforming vectors, and the different beamforming vectors may point to different directions, so as to ensure that the UE can accurately receive the second synchronization signals in any direction.

As an embodiment, a given reference resource is used by the UE to determine the K possible resources. The time-frequency resource occupied by a given first synchronization signal is the given reference resource, and the given first synchronization signal is one of the K1 first synchronization signals.

As an embodiment, the K possible resources are associated with the given reference resource.

As an embodiment, the association relationship between the K possible resources and the given reference resource is the same as the association relationship between the K candidate resources and the first time-frequency resource.

As an embodiment, the association relationship between the position of the given time-frequency resource in the K possible resources and the first time length is the same as the association relationship between the position of the second time-frequency resource in the K candidate resources and the first time length, respectively.

As an embodiment, the association relationship of the position of the given time-frequency resource in the K possible resources to the R1 antenna ports is the same as the association relationship of the position of the second time-frequency resource in the K candidate resources to the R1 antenna ports, respectively.

As an embodiment, the association relationship of the position of the given time-frequency resource in the K possible resources to { the first time length, the R1 antenna ports } is the same as the association relationship of the position of the second time-frequency resource in the K candidate resources to { the first time length, the R1 antenna ports }, respectively.

As an embodiment, any two of the K4 second synchronization signals are QCLs.

-a step c1. receiving K5 second reference signals;

step C2. receives K6 fourth wireless signals.

Time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and time domain resources occupied by any two of the K5 second reference signals are orthogonal. Time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two of the K6 fourth wireless signals are orthogonal. The K5 and the K6 are each positive integers. A given fourth wireless signal is transmitted by R3 antenna ports, a given second reference signal is used to determine downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals. The given second reference signal includes R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively. At least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna ports. The R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

As one example, the R3 is equal to the R1.

As one example, the K5 is equal to the K6.

As an embodiment, for any one reference antenna port of the R3 antenna ports, the R4 sub-signals are used to determine downlink channel parameters corresponding to the any one reference antenna port.

As one embodiment, the third wireless signal and the K6 fourth wireless signals are consecutive in a time domain.

As an embodiment, the third wireless signal and the K6 fourth wireless signals carry the same information. As a sub-embodiment, the third radio signal and the K6 fourth radio signals are each determined by a given block of information bits, the given block of information bits comprising a positive integer number of bits.

As an embodiment, the UE performs combining of the received third wireless signal and the K6 fourth wireless signals. As a sub-embodiment, the UE performs at least one of { coherent detection, non-coherent detection } on the combined signal. As a sub-embodiment, the UE performs at least one of { coherent detection, non-coherent detection } on the third wireless signals and the K6 fourth wireless signals, respectively, and then performs combining on the detection results.

In the above embodiment, the UE may improve the detection accuracy of the given information bit block by performing combining on the third radio signal and the K6 fourth radio signals.

For one embodiment, the third wireless signal and the K6 fourth wireless signals are QCLs.

As an embodiment, the UE cannot assume that any one of the third wireless signal and the K6 fourth wireless signals is transmitted by the same antenna port group, and the UE cannot assume that any two of the K6 fourth wireless signals is transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports.

As an embodiment, the first reference signal and the K5 second reference signals are consecutive in a time domain.

As an embodiment, the first reference signal and the K5 second reference signals include the same reference sequence. As a sub-embodiment, the reference sequence comprises at least one of a { pseudo-random sequence, a Zadoff-Chu sequence }.

As an embodiment, the Pattern (Pattern) of the first reference signal and the K5 second reference signals within a time-frequency resource block is the same. As a sub-embodiment, the time-frequency Resource Block is PRBP (Physical Resource Block Pair). As a sub-embodiment, the time-frequency resource block occupies W subcarriers in the frequency domain and one wideband symbol in the time domain.

As one embodiment, the first reference signal and the K5 second reference signals are QCLs.

As an embodiment, the UE cannot assume that any one of the first reference signal and the K5 second reference signals is transmitted by the same antenna port group, and the UE cannot assume that any two of the K5 second reference signals is transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports.

The invention discloses a method in a base station supporting synchronous signals, which comprises the following steps:

-step a. transmitting a first wireless signal on a first time-frequency resource;

-step b. transmitting a second radio signal on a second time-frequency resource;

As an example, K is 2.

As one example, K is greater than 2.

As an embodiment, the position of the second time-frequency resource in the K candidate resources and the first length of time are associated.

As an embodiment, the positions of the second time-frequency resource in the K candidate resources and the R1 antenna ports are associated.

As an embodiment, the position of the second time-frequency resource in the K candidate resources and { the first length of time, the R1 antenna ports } are associated.

As one embodiment, the second synchronization signal includes a synchronization sequence. As a sub-embodiment, the synchronization sequence comprises at least one of a { pseudo-random sequence, a Zadoff-Chu sequence }.

In one embodiment, the second synchronization signal includes an NB-SSS.

-step c.

As an embodiment, the third wireless signal is transmitted on a broadcast channel (i.e. a downlink channel that can only be used to carry broadcast signals). As a sub-embodiment, the Broadcast CHannel includes a PBCH (Physical Broadcast CHannel).

step C0. sending a first reference signal.

As one embodiment, the R2 is greater than the R1.

As one example, the R2 is equal to the R1.

As an embodiment, the Channel parameter is CIR (Channel Impulse Response).

As one embodiment, the first reference signal is wideband. As a sub-embodiment, the system bandwidth is divided into a positive integer number of frequency domain regions, any one of the R2 sub-signals appears in all frequency domain regions within the system bandwidth, and the bandwidth corresponding to the frequency domain region is equal to the difference of the frequencies of the adjacent two-appearing frequency units of any one of the R2 sub-signals.

In one embodiment, the antenna ports are formed by superimposing a plurality of antennas through antenna Virtualization (Virtualization), and mapping coefficients of the plurality of antennas to the antenna ports form beamforming vectors. As a sub-embodiment, the beamforming vector corresponding to a first antenna port and the beamforming vector corresponding to a second antenna port cannot be assumed to be the same, and the first antenna port and the second antenna port are any two different antenna ports. As a sub-embodiment, the small scale characteristics of the wireless channel experienced by the signal transmitted by the first antenna port cannot be used to infer the small scale characteristics of the wireless channel experienced by the signal transmitted by the second antenna port.

-step A0. determining the second time-frequency resource from { the first time-frequency resource, { the first length of time, at least one of the R1 antenna ports }, or determining the K candidate resources from the first time-frequency resource.

-a step B0. of determining the position of the second time-frequency resource among the K candidate resources according to at least one of { the first length of time, the R1 antenna ports }.

And the base station determines the K candidate resources according to the first time-frequency resource.

a step a1. sending K1 first synchronization signals;

As an example, the K3 first synchronization signals carry the same information.

As an embodiment, two wireless signals are the QCL refer to: the large-scale characteristics of a channel carrying one radio signal can be inferred from the large-scale characteristics (properties) of a channel carrying another radio signal. The large scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay) }.

step b1. send K2 second synchronization signals.

As an embodiment, the antenna port group includes 1 antenna port.

As an embodiment, the UE cannot assume that the two second synchronization signals are transmitted by the same antenna port group, which means that: the small scale characteristics of the wireless channel experienced by the signal transmitted by the first antenna port cannot be used by the UE to infer the small scale characteristics of the wireless channel experienced by the signal transmitted by the second antenna port. The first antenna port is any one antenna port used for transmitting one second synchronization signal, the second antenna port is any one antenna port used for transmitting another second synchronization signal, and the small-scale characteristic includes a channel impulse response.

As an embodiment, a given reference resource is used to determine the K possible resources. The time-frequency resource occupied by a given first synchronization signal is the given reference resource, and the given first synchronization signal is one of the K1 first synchronization signals.

As an embodiment, the association relationship of the K possible resources to the given reference resource is the same as the association relationship of the K candidate resources to the first time-frequency resource, respectively.

As an embodiment, any two of the K4 second synchronization signals are QCLs.

-step c1. sending K5 second reference signals;

step C2. sends K6 fourth wireless signals.

Time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and time domain resources occupied by any two of the K5 second reference signals are orthogonal. The time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and the time domain resources occupied by any two of the K6 fourth wireless signals are orthogonal. The K5 and the K6 are each positive integers. A given fourth wireless signal is transmitted by R3 antenna ports, a given second reference signal is used to determine downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals. The given second reference signal includes R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively. At least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port. The R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

As one example, the R3 is equal to the R1.

As an embodiment, it cannot be assumed that any one of the third wireless signal and the K6 fourth wireless signals is transmitted by the same antenna port group, and it cannot be assumed that any two of the K6 fourth wireless signals are transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports.

For one embodiment, the first reference signal and the K5 second reference signals are QCLs.

As an embodiment, it cannot be assumed that any one of the first reference signal and the K5 second reference signals is transmitted by the same antenna port group, and it cannot be assumed that any two of the K5 second reference signals is transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports.

The invention discloses user equipment supporting a synchronous signal, which comprises the following modules:

a first receiving module: for receiving a first wireless signal on a first time-frequency resource;

a second receiving module: for receiving a second wireless signal on a second time-frequency resource.

As an embodiment, there are at least two candidate resources of the K candidate resources, the two candidate resources are orthogonal in the frequency domain, and the two candidate resources at least partially overlap in the time domain.

Specifically, the ue is characterized in that the first wireless signal includes a first synchronization signal, and the second wireless signal includes a second synchronization signal.

In one embodiment, the second synchronization signal includes an NB-SSS.

Specifically, the ue is characterized in that the first receiving module is further configured to determine the K candidate resources according to the first time-frequency resource.

Specifically, the ue is characterized in that the second receiving module is further configured to monitor the second radio signal on the K candidate resources.

Specifically, the user equipment is characterized in that the first receiving module is further configured to receive K1 first synchronization signals.

Specifically, the user equipment is characterized in that the second receiving module is further configured to receive K2 second synchronization signals.

Specifically, the user equipment is characterized by further comprising the following modules:

a third receiving module: for receiving the third wireless signal.

Specifically, the user equipment is characterized in that the third receiving module is further configured to receive a first reference signal.

As an embodiment, the Channel parameter is CIR (Channel Impulse Response).

As an embodiment, the antenna port is formed by overlapping a plurality of antennas through antenna Virtualization (Virtualization).

Specifically, the user equipment is characterized in that the third receiving module is further configured to receive K5 second reference signals.

The time domain resources occupied by the K5 second reference signals and the first reference signal are orthogonal, and the time domain resources occupied by any two of the K5 second reference signals are orthogonal. The K5 is a positive integer.

Specifically, the user equipment is characterized in that the third receiving module is further configured to receive K6 fourth wireless signals. The K6 is a positive integer.

Wherein, the time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and the time domain resources occupied by any two of the K6 fourth wireless signals are orthogonal. A given fourth wireless signal is transmitted by R3 antenna ports, a given second reference signal is used to determine downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals. The given second reference signal includes R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively. At least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna ports. The R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

The invention discloses a base station device supporting synchronous signals, which comprises the following modules:

a first sending module: for transmitting a first wireless signal on a first time-frequency resource;

a second sending module: for transmitting a second wireless signal on a second time-frequency resource.

As an embodiment, the first wireless signal and the second wireless signal are transmitted by a same antenna port group, the antenna port group including a positive integer number of antenna ports.

Specifically, the base station device may be configured to configure the first wireless signal to include a first synchronization signal, and the second wireless signal to include a second synchronization signal.

Specifically, the base station device may be further configured to, by the first sending module, determine the second time-frequency resource according to { the first time-frequency resource, { the first time length, and at least one of the R1 antenna ports }, or determine the K candidate resources according to the first time-frequency resource.

Specifically, the base station device is further configured to, according to at least one of { the first time length, the R1 antenna ports }, determine a position of the second time-frequency resource in the K candidate resources. And the base station determines the K candidate resources according to the first time-frequency resource.

Specifically, the base station device is characterized in that the first sending module is further configured to send K1 first synchronization signals.

Specifically, the base station device is characterized in that the second sending module is further configured to send K2 second synchronization signals.

Specifically, the base station device is characterized by further including the following modules:

a third sending module: for transmitting a third wireless signal.

Specifically, the base station device is characterized in that the third sending module is further configured to send a first reference signal.

The first reference signal is used to determine downlink channel parameters corresponding to the R1 antenna ports, the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by the R2 antenna ports. At least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port. The R2 is a positive integer greater than the R1; or the R2 is equal to the R1.

Specifically, the base station device is characterized in that the third sending module is further configured to send K5 second reference signals.

Time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and time domain resources occupied by any two of the K5 second reference signals are orthogonal. The K5 is a positive integer.

Specifically, the base station device is characterized in that the third sending module is further configured to send K6 fourth wireless signals. The K6 is a positive integer.

Wherein, the time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and the time domain resources occupied by any two of the K6 fourth wireless signals are orthogonal. A given fourth wireless signal is transmitted by R3 antenna ports, a given second reference signal is used to determine downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals. The given second reference signal includes R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively. At least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port. The R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

Compared with the traditional scheme, the invention has the following advantages:

determining the first time length and R1 antenna ports by the positions of the second time-frequency resources in the K candidate resources without using additional information bits to assist the UE to obtain CP length information and antenna port information, which saves signaling overhead;

the first synchronization signal, the second synchronization signal and the broadcast signal can all point to different ways through different beams on different time domain resources, so that the receiving quality of the UE in different directions is ensured;

the UE may combine the first/second synchronization/broadcast signals from different beam directions, thereby enhancing the reception quality of the first/second synchronization/broadcast signals;

the beamforming vectors used by the broadcast signal and the reference signal may be different, so as to increase the flexibility of designing the waveforms of the broadcast signal and the reference signal, so that the waveforms of the broadcast signal and the reference signal can better meet respective requirements.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 shows a flow diagram of wireless transmission according to an embodiment of the invention;

fig. 2 shows a schematic diagram of the resource mapping of { first time-frequency resource, second time-frequency resource, K candidate resources, K1 first synchronization signals, the association between a given time-frequency resource, K possible resources, a given reference resource }, and the association between the position of the second time-frequency resource in the K candidate resources and { first time length, R1 antenna ports }, according to an embodiment of the invention;

fig. 3 shows a schematic diagram of an antenna structure according to an embodiment of the invention;

fig. 4 shows a resource mapping of a first reference signal and K5 second reference signals and a schematic diagram of the relationship between R1 antenna ports and R2 antenna ports according to an embodiment of the invention;

fig. 5 shows a block diagram of a processing device used in a UE according to an embodiment of the invention;

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

Example 1

Embodiment 1 illustrates a flow chart of wireless transmission, as shown in fig. 1. In fig. 1, base station N1 is the serving cell maintaining base station for UE U2.

For N1, { first wireless signals, K1 first synchronization signals } are transmitted in step S11; transmitting { second wireless signals, K2 second synchronization signals } in step S12; transmitting { first reference signals, K5 second reference signals } in step S13; in step S14, { third wireless signals, K6 fourth wireless signals }.

For U2, at least the former of { first wireless signal, K1 first synchronization signals } is received in step S21; receiving at least the former of { second wireless signals, K2 second synchronization signals } in step S22; receiving at least the former of { first reference signals, K5 second reference signals } in step S23; at least the former of { third wireless signals, K6 fourth wireless signals } is received in step S24.

In embodiment 1, the second time-frequency resource is one of K candidate resources, and the position of the second time-frequency resource in the K candidate resources is used for determining at least one of { first time length, R1 antenna ports }. The K is a positive integer greater than 1. { the length of the CP corresponding to the first wireless signal, the length of the CP corresponding to the second wireless signal } is equal to the first time length. And R1 is a positive integer. The first wireless signal comprises a first synchronization signal and the second wireless signal comprises a second synchronization signal. The third wireless signal is transmitted by the R1 antenna ports. The first reference signal is used for determining downlink channel parameters corresponding to the R1 antenna ports, and the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by R2 antenna ports. At least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port. The R2 is a positive integer greater than the R1; or the R2 is equal to the R1. The first time-frequency resources are orthogonal to the time-domain resources occupied by the K1 first synchronization signals in the time domain, and the time-domain resources occupied by any two of the K1 first synchronization signals are orthogonal. The K1 is a positive integer. The time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two of the K2 second synchronization signals are orthogonal. The K2 is a positive integer less than or equal to the K1. For any given one of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K possible resources, and the position of the given time-frequency resource in the K possible resources is related to at least one of { the first length of time, the R1 antenna ports }. The time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and the time domain resources occupied by any two of the K5 second reference signals are orthogonal. Time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two of the K6 fourth wireless signals are orthogonal. The K5 and the K6 are each positive integers. A given fourth wireless signal is transmitted by R3 antenna ports, a given second reference signal is used to determine downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals. The given second reference signal includes R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively. At least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port. The R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

As sub-example 1 of example 1, the K is 2.

As sub-example 2 of example 1, the K is greater than 2.

As sub-embodiment 3 of embodiment 1, the first time duration is one of L1 candidate time durations, and L1 is a positive integer greater than 1.

As sub-embodiment 4 of embodiment 1, the first wireless signal and the second wireless signal are transmitted by the same antenna port group, which includes a positive integer number of antenna ports.

As sub-embodiment 5 of embodiment 1, the first synchronization signal includes a synchronization sequence. As a sub-embodiment, the synchronization sequence comprises at least one of a { Zadoff-Chu sequence, a pseudo-random sequence }.

As sub-embodiment 6 of embodiment 1, the second synchronization signal includes a synchronization sequence. As a sub-embodiment, the synchronization sequence comprises at least one of a { pseudo-random sequence, a Zadoff-Chu sequence }.

As sub-embodiment 7 of embodiment 1, the third wireless signal is transmitted on a broadcast channel (i.e. a downlink channel that can only be used to carry broadcast signals). As a sub-embodiment, the Broadcast CHannel includes a PBCH (Physical Broadcast CHannel).

As sub-embodiment 8 of embodiment 1, the UE determines the K candidate resources according to the first time-frequency resource.

As a sub-embodiment of sub-embodiment 8 of embodiment 1, the positions of the K candidate resources in the time domain are the same, the positions of the K candidate resources in the time domain and the position of the first time-frequency resource in the time domain are associated, and the positions of the K candidate resources in the frequency domain and the position of the first time-frequency resource in the frequency domain are associated.

As sub-embodiment 9 of embodiment 1, the UE monitors the second wireless signal on the K candidate resources.

As a sub-embodiment of sub-embodiment 9 of embodiment 1, the monitoring refers to blind detection, that is, detecting a received signal in each of the candidate resources, and if a detection result satisfies a given condition, determining that the detection is successful, otherwise, determining that the detection is failed. As a sub-embodiment, the given condition is that the detected signal energy is greater than a predetermined threshold. As a sub-embodiment, the given condition is that the decoding is correct by checking bits.

As a sub-embodiment 10 of embodiment 1, the first synchronization signal of the first wireless signals and the K1 first synchronization signals correspond to the same synchronization sequence.

As a sub-embodiment 11 of embodiment 1, the K2 second synchronization signals and the second synchronization signal in the second wireless signal correspond to the same synchronization sequence.

As sub-embodiment 12 of embodiment 1, for any two second synchronization signals of the K4 second synchronization signals composed of the K2 second synchronization signals and the second synchronization signal of the second wireless signals, the UE cannot assume that the two second synchronization signals are transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports. The K4 is equal to K2 plus 1.

As sub-embodiment 13 of embodiment 1, the third wireless signal and the K6 fourth wireless signals are consecutive in a time domain.

As sub-embodiment 14 of embodiment 1, the third wireless signal and the K6 fourth wireless signals carry the same information. As a sub-embodiment, the third radio signal and the K6 fourth radio signals are each determined by a given block of information bits, the given block of information bits comprising a positive integer number of bits.

As sub-embodiment 15 of embodiment 1, the UE cannot assume that any one of the third wireless signal and the K6 fourth wireless signals is transmitted by the same antenna port group, and the UE cannot assume that any two of the K6 fourth wireless signals is transmitted by the same antenna port group.

As sub-embodiment 16 of embodiment 1, the first reference signal and the K5 second reference signals are consecutive in the time domain.

As sub-embodiment 17 of embodiment 1, the first reference signal and the K5 second reference signals comprise the same reference sequence. As a sub-embodiment, the reference sequence comprises at least one of a { pseudo-random sequence, a Zadoff-Chu sequence }.

As sub-embodiment 18 of embodiment 1, the UE cannot assume that any one of the first reference signal and the K5 second reference signals is transmitted by the same antenna port group, and the UE cannot assume that any two of the K5 second reference signals is transmitted by the same antenna port group.

Example 2

Example 2 illustrates a schematic diagram of the association between the { first time-frequency resource, the second time-frequency resource, the K candidate resources, the resource mapping of the K1 first synchronization signals, the given time-frequency resource, the K possible resources, the given reference resource }, and the association between the position of the second time-frequency resource in the K candidate resources and { first time length, R1 antenna ports }, as shown in fig. 2.

In embodiment 2, the first synchronization signal in the first wireless signals and the K1 first synchronization signals form K3 first synchronization signals, and the K3 is the sum of the K1 and 1. The time domain resources occupied by the K3 first synchronization signals are orthogonal. The K candidate resources are completely overlapped in the time domain and are orthogonal in the frequency domain. The first time-frequency resource and the K candidate resources occupy the same time resource in a time domain, and frequency resources occupied in a frequency domain are mutually orthogonal. The location of the second time-frequency resource in the K candidate resources and at least one of { the first length of time, the R1 antenna ports } are associated. For any given second synchronization signal of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is the given time-frequency resource, the given time-frequency resource is one of the K possible resources, and the position of the given time-frequency resource in the K possible resources is related to at least one of { the first time length, the R1 antenna ports }. The given reference resource is used to determine the K possible resources. The time-frequency resource occupied by a given first synchronization signal is the given reference resource, and the given first synchronization signal is one of the K1 first synchronization signals.

In fig. 2, the first time-frequency resource is represented by a box of a heavy solid frame filled with oblique lines; the K candidate resources are represented by boxes filled with dots; the second time frequency resource is represented by a box of a thick solid line frame filled with small dots; the time frequency resources occupied by the K1 first synchronization signals are represented by boxes filled with crossed lines; the given reference resource is represented by a box of a heavy solid line border filled with crosshairs; the K possible resources are represented by boxes filled with squares; the given time frequency resource is represented by a box of a bold solid border filled with squares.

As sub-embodiment 1 of embodiment 2, the time domain resources occupied by the K3 first synchronization signals are continuous.

As a sub-embodiment 2 of embodiment 2, the position of the second time-frequency resource in the K candidate resources and the first length of time are associated.

As a sub-embodiment of sub-embodiment 2 of embodiment 2, the first time length is one of { candidate time length 1, candidate time length 2 }. If the first time length is equal to the candidate time length 1, the starting frequency point of the frequency resource occupied by the second time-frequency resource is larger than the starting frequency point of the frequency resource occupied by the first time-frequency resource; otherwise, the starting frequency point of the frequency resource occupied by the second time frequency resource is smaller than the starting frequency point of the frequency resource occupied by the first time frequency resource.

As sub-embodiment 3 of embodiment 2, the position of the second time-frequency resource in the K candidate resources and the R1 antenna ports are associated.

As sub-embodiment 4 of embodiment 2, the position of the second time-frequency resource in the K candidate resources and { the first length of time, the R1 antenna ports } are associated.

As sub-embodiment 5 of embodiment 2, any two of the K3 first synchronization signals are QCLs (Quasi Co-Located).

As a sub-embodiment of sub-embodiment 5 of embodiment 2, two wireless signals are said QCLs means: the large-scale characteristics of a channel carrying one radio signal can be inferred from the large-scale characteristics (properties) of a channel carrying another radio signal. The large scale characteristics include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay) }.

As sub-embodiment 6 of embodiment 2, the K2 second synchronization signals and the second synchronization signal of the second wireless signals constitute K4 second synchronization signals, and the K4 is the sum of K2 and 1.

As a sub-embodiment of sub-embodiment 6 of embodiment 2, the time domain resources occupied by the K4 second synchronization signals are orthogonal.

As a sub-embodiment 7 of embodiment 2, the K possible resources are associated with the given reference resource.

As a sub-embodiment of sub-embodiment 7 of embodiment 2, the association relationships of the K possible resources to the given reference resource are respectively the same as the association relationships of the K candidate resources to the first time-frequency resource.

As a sub-embodiment 8 of embodiment 2, the association relationship between the position of the given time-frequency resource in the K possible resources and the first time length is respectively the same as the association relationship between the position of the second time-frequency resource in the K candidate resources and the first time length.

As sub-embodiment 9 of embodiment 2, the association relationships of the position of the given time-frequency resource in the K possible resources to the R1 antenna ports are respectively the same as the association relationships of the position of the second time-frequency resource in the K candidate resources to the R1 antenna ports.

As a sub-embodiment 10 of embodiment 2, the association relationship of the position of the given time-frequency resource in the K possible resources to { the first time length, the R1 antenna ports } is the same as the association relationship of the position of the second time-frequency resource in the K candidate resources to { the first time length, the R1 antenna ports }, respectively.

As a sub-embodiment 11 of embodiment 2, any two of the K4 second synchronization signals are QCLs.

Example 3

Embodiment 3 illustrates a schematic diagram of an antenna structure, as shown in fig. 3.

In fig. 3, a communication node is equipped with G antenna groups, and the G antenna groups respectively correspond to G RF (Radio Frequency) chains. One antenna group comprises V antennas, G is a positive integer, and V is a positive integer. For G ≦ 1 ≦ G, the antennas in antenna group # G include { Ant G _1, Ant G _2, …, Ant G _ V } in FIG. 3, and the antennas in antenna group # G pass through analog beamforming vector c_gPerforming analog beamforming, wherein c_gIs a vector of dimension V x 1, and the analog beamforming vector corresponding to one antenna group is formed by weighting coefficients on V antennas included in the antenna group, i.e. c_g＝[c_g,1…c_g,V]。

Example 4

Embodiment 4 illustrates resource mapping of a first reference signal and K5 second reference signals, and a schematic diagram of the relationship between R1 antenna ports and R2 antenna ports, as shown in fig. 4.

In embodiment 4, the first reference signals occupy I consecutive wideband symbols in the time domain and occupy a portion of the system bandwidth in the frequency domain, and each of the K5 second reference signals occupy I consecutive wideband symbols in the time domain and occupy a portion of the system bandwidth in the frequency domain. The time domain resources occupied by the first reference signal and the K5 second reference signals are orthogonal, and the time domain resources occupied by any two second reference signals in the K5 second reference signals are orthogonal. The first reference signal includes R2 sub-signals, and the R2 sub-signals are transmitted by R2 antenna ports, respectively. Given that the second reference signal includes R4 sub-signals, the R4 sub-signals are transmitted by R4 antenna ports, respectively. The given second reference signal is one of the K5 second reference signals. The R2 is equal to the R4. In fig. 4, the R2 sub signals are represented by boxes filled with small dots, and the R4 sub signals are represented by boxes filled with oblique lines.

As sub-embodiment 1 of embodiment 4, the first reference signal and the K5 second reference signals are broadband.

As a sub-embodiment of sub-embodiment 1 of embodiment 4, the system bandwidth is divided into a positive integer number of frequency domain regions, any one of the R2 sub-signals appears on all frequency domain regions within the system bandwidth, and the bandwidth corresponding to the frequency domain region is equal to the difference of the frequencies of the frequency units of two adjacent occurrences of any one of the R2 sub-signals.

As a sub-embodiment of sub-embodiment 1 of embodiment 4, any one of the R4 sub-signals occurs over all frequency domain regions within the system bandwidth.

As sub-embodiment 2 of embodiment 4, the first reference signal and the K5 second reference signals are consecutive in the time domain.

As sub-embodiment 3 of embodiment 4, the first reference signal and the K5 second reference signals include the same reference sequence. As a sub-embodiment, the reference sequence comprises at least one of a { pseudo-random sequence, a Zadoff-Chu sequence }.

As a sub-embodiment 4 of embodiment 4, the Pattern (Pattern) of the first reference signal and the K5 second reference signals within a block of time-frequency resources is the same. As a sub-embodiment, the time-frequency Resource Block is PRBP (Physical Resource Block Pair). As a sub-embodiment, the time-frequency resource block occupies W subcarriers in the frequency domain and I wideband symbols in the time domain. As a sub-embodiment, I is equal to 1. As a sub-embodiment, I is greater than 1.

As sub-embodiment 5 of embodiment 4, the wideband symbol is one of { OFDM symbol, SC-FDMA symbol, SCMA symbol }.

As sub-embodiment 6 of embodiment 4, different ones of the R2 sub-signals occupy different sub-carriers in the frequency domain.

As a sub-embodiment of sub-embodiment 6 of embodiment 4, the frequency domain intervals between adjacent subcarriers occupied by different ones of the R2 sub-signals in the frequency domain are the same.

As sub-embodiment 7 of embodiment 4, different sub-signals of the R2 sub-signals occupy the same sub-carrier in the frequency domain, and the different sub-signals correspond to different reference sequences.

As a sub-embodiment of sub-embodiment 7 of embodiment 4, the reference sequence is a Zadoff-Chu sequence.

As a sub-embodiment of sub-embodiment 7 of embodiment 4, the reference sequences corresponding to different ones of the R2 sub-signals are mutually orthogonal.

As sub-embodiment 8 of embodiment 4, the R2 sub-signals and the R4 sub-signals occupy the same sub-carriers in the frequency domain, and the R2 is equal to the R4.

As a sub-embodiment of sub-embodiment 8 of embodiment 4, the R2 sub signals and the R4 sub signals have one-to-one correspondence. A first sub-signal and a second sub-signal occupy the same sub-carrier in a frequency domain, the first sub-signal being one of the R2 sub-signals, the second sub-signal being one of the R4 sub-signals corresponding to the first sub-signal.

As a sub-embodiment of sub-embodiment 8 of embodiment 4, the first sub-signal and the second sub-signal correspond to the same reference sequence.

As sub-embodiment 9 of embodiment 4, each of the R2 antenna ports is formed by superimposing antennas in a given antenna pool through antenna Virtualization (Virtualization), where the given antenna pool includes G1 antenna groups, and mapping coefficients of the antennas in the given antenna pool to the antenna ports constitute beamforming vectors.

As a sub-embodiment of sub-embodiment 9 of embodiment 4, the beamforming vector corresponding to antenna port # R (1 ≦ R ≦ R2) of the R2 antenna ports is formed by a product of an analog beamforming matrix and a digital beamforming vector, and the analog beamforming matrix is formed by diagonal arrangement of the analog beamforming vectors corresponding to the G1 antenna groups, i.e., w_r＝Cb_rWherein w is_rIs the beamforming vector corresponding to the antenna port # r, C is the analog beamforming matrix, b_rIs the digital beamforming vector corresponding to the antenna port # r, C is formed by { C₁,…,c_G1Is arranged diagonally, wherein { c }₁,…,c_G1Is the analog beamforming vector for the G1 antenna groups.

As a sub-embodiment of sub-embodiment 9 of embodiment 4, the digital beamforming vectors corresponding to any two different antenna ports of the R2 antenna ports are different.

As a sub-embodiment 10 of embodiment 4, a third wireless signal is transmitted by the R1 antenna ports, and the first reference signal is used to determine downlink channel parameters corresponding to the R1 antenna ports. The R1 antenna ports are formed by antennas in the given antenna pool superimposed through antenna virtualization.

As a sub-embodiment of sub-embodiment 10 of embodiment 4, the R2 is greater than the R1.

As a sub-embodiment of sub-embodiment 10 of embodiment 4, the R2 is equal to the R1.

As a sub-embodiment of sub-embodiment 10 of embodiment 4, for any given antenna port of the R1 antenna ports, the R2 sub-signals are used to determine downlink channel parameters corresponding to the any given antenna port. As a sub-embodiment, the Channel parameter is CIR (Channel Impulse Response).

As a sub-embodiment of sub-embodiment 10 of embodiment 4, the analog beamforming matrix corresponding to a first antenna port and the analog beamforming matrix corresponding to a second antenna port are the same. The first antenna port is any one of the R1 antenna ports, and the second antenna port is any one of the R2 antenna ports.

As a sub-embodiment of sub-embodiment 10 of embodiment 4, the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port may not be assumed to be the same.

As a sub-embodiment of sub-embodiment 10 of embodiment 4, the small scale characteristic of the wireless channel experienced by the signal transmitted by the first antenna port cannot be used to infer the small scale characteristic of the wireless channel experienced by the signal transmitted by the second antenna port.

Example 5

Embodiment 5 is a block diagram of a processing apparatus used in a UE, as shown in fig. 5. In fig. 5, the UE apparatus 200 mainly includes a first receiving module 201, a second receiving module 202, and a third receiving module 203.

The first receiving module 201 is configured to receive at least the former of { the first wireless signal, K1 first synchronization signals }; the second receiving module 202 is configured to receive at least the former of { the second wireless signal, K2 second synchronization signals }; the third receiving module 203 is configured to receive at least the former of { third wireless signal, first reference signal }, { K6 fourth wireless signals, K5 second reference signals } }.

In embodiment 5, the second time-frequency resource is one of K candidate resources, and the position of the second time-frequency resource in the K candidate resources is used for determining at least one of { first time length, R1 antenna ports }. The K is a positive integer greater than 1. { the length of the CP corresponding to the first wireless signal, the length of the CP corresponding to the second wireless signal } is equal to the first time length. And R1 is a positive integer. The first time-frequency resources are orthogonal to the time-domain resources occupied by the K1 first synchronization signals in the time domain, and the time-domain resources occupied by any two first synchronization signals in the K1 first synchronization signals are orthogonal. The K1 is a positive integer. The time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two second synchronization signals in the K2 second synchronization signals are orthogonal. The K2 is a positive integer less than or equal to the K1. For any given one of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K possible resources, and the position of the given time-frequency resource in the K possible resources is related to at least one of { the first length of time, the R1 antenna ports }. The third wireless signal is transmitted by the R1 antenna ports. The first reference signal is used for determining downlink channel parameters corresponding to the R1 antenna ports, and the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by R2 antenna ports. At least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port. The R2 is a positive integer greater than the R1; or the R2 is equal to the R1. The time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and the time domain resources occupied by any two second reference signals in the K5 second reference signals are orthogonal. The K5 is a positive integer. Time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two fourth wireless signals of the K6 fourth wireless signals are orthogonal. The K6 is a positive integer. A given fourth wireless signal is transmitted by R3 antenna ports, a given second reference signal is used to determine downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals. The given second reference signal includes R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively. At least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port. The R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

As sub-embodiment 1 of embodiment 5, the first wireless signal includes a first synchronization signal and the second wireless signal includes a second synchronization signal.

As sub-embodiment 2 of embodiment 5, the first receiving module 201 is further configured to determine the K candidate resources according to the first time-frequency resource.

As sub-embodiment 3 of embodiment 5, the second receiving module 202 is further configured to monitor the second wireless signal on the K candidate resources.

Example 6

Embodiment 6 is a block diagram of a processing apparatus used in a base station, as shown in fig. 6. In fig. 6, the base station apparatus 300 is mainly composed of a first transmission module 301, a second transmission module 302, and a third transmission module 303.

The first sending module 301 is configured to send { a first wireless signal, K1 first synchronization signals }; the second sending module 302 is configured to send { second wireless signals, K2 second synchronization signals }; the third sending module 303 is configured to send { { third wireless signals, first reference signals }, { K6 fourth wireless signals, K5 second reference signals } }.

In embodiment 6, the second time-frequency resource is one of K candidate resources, and the position of the second time-frequency resource in the K candidate resources is used for determining at least one of { first time length, R1 antenna ports }. The K is a positive integer greater than 1. { the length of the CP corresponding to the first radio signal, the length of the CP corresponding to the second radio signal } is equal to the first time length. And R1 is a positive integer. The first time-frequency resources are orthogonal to the time-domain resources occupied by the K1 first synchronization signals in the time domain, and the time-domain resources occupied by any two first synchronization signals in the K1 first synchronization signals are orthogonal. The K1 is a positive integer. The time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two second synchronization signals in the K2 second synchronization signals are orthogonal. The K2 is a positive integer less than or equal to the K1. For any given one of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K possible resources, and the position of the given time-frequency resource in the K possible resources is related to at least one of { the first length of time, the R1 antenna ports }. The third wireless signal is transmitted by the R1 antenna ports. The first reference signal is used for determining downlink channel parameters corresponding to the R1 antenna ports, and the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by R2 antenna ports. At least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port. The R2 is a positive integer greater than the R1; or the R2 is equal to the R1. The time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and the time domain resources occupied by any two second reference signals in the K5 second reference signals are orthogonal. The K5 is a positive integer. Time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two fourth wireless signals of the K6 fourth wireless signals are orthogonal. The K6 is a positive integer. A given fourth wireless signal is transmitted by R3 antenna ports, a given second reference signal is used to determine downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals. The given second reference signal includes R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively. At least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port. The R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

As sub-embodiment 1 of embodiment 6, the first wireless signal includes a first synchronization signal, and the second wireless signal includes a second synchronization signal.

As sub-embodiment 2 of embodiment 6, the first sending module 301 is further configured to determine the second time-frequency resource according to { the first time-frequency resource, { the first time length, at least one of the R1 antenna ports }, or determine the K candidate resources according to the first time-frequency resource.

As sub-embodiment 3 of embodiment 6, the second sending module 302 is further configured to determine the position of the second time-frequency resource in the K candidate resources according to at least one of { the first time length, the R1 antenna ports }. And the base station determines the K candidate resources according to the first time-frequency resource.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the invention includes but is not limited to wireless communication equipment such as a mobile phone, a tablet computer, a notebook, a network card, an NB-IOT terminal, an eMTC terminal and the like. The base station or system device in the present invention 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 invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A user equipment supporting synchronization signals, comprising:

a second receiving module: for receiving a second wireless signal on a second time-frequency resource;

a third receiving module: for receiving a third wireless signal;

wherein the second time-frequency resource is one of K candidate resources, a position of the second time-frequency resource in the K candidate resources being used for determining a first length of time; the K is a positive integer greater than 1; the user equipment determines the first time length by determining the position of the second time-frequency resource in the K candidate resources; the length of the CP corresponding to the first wireless signal and the length of the CP corresponding to the second wireless signal are both equal to the first time length; the first wireless signal comprises a first synchronization signal and the second wireless signal comprises a second synchronization signal; the first synchronization signal comprises a PSS, the second synchronization signal comprises an SSS; the third wireless signal is transmitted by R1 antenna ports, the R1 is a positive integer; the third wireless signal is transmitted on a broadcast channel, the broadcast channel comprising a PBCH.

2. The UE of claim 1, wherein the third receiving module further receives a first reference signal; the first reference signal is used for determining downlink channel parameters corresponding to the R1 antenna ports, the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by R2 antenna ports; at least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port; the R2 is a positive integer greater than the R1, alternatively, the R2 is equal to the R1.

3. The UE of claim 1 or 2, wherein the first receiving module further receives K1 first synchronization signals; the time domain resources occupied by the first time frequency resources and the time domain resources occupied by the K1 first synchronization signals are orthogonal in the time domain, and the time domain resources occupied by any two first synchronization signals in the K1 first synchronization signals are orthogonal; the K1 is a positive integer.

4. The UE of claim 3, wherein the second receiving module further receives K2 second synchronization signals; the time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two second synchronization signals in the K2 second synchronization signals are orthogonal; the K2 is a positive integer less than or equal to the K1; for any given second synchronization signal of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K candidate resources, and the position of the given time-frequency resource in the K candidate resources is related to the first time length; the K2 second synchronization signals and a second synchronization signal in the second wireless signals constitute K4 second synchronization signals; the K4 second synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier wave; for any two second synchronization signals in the K4 second synchronization signals, the user equipment cannot assume that the two second synchronization signals are transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports; the antenna port is formed by virtually superposing a plurality of antennas, and mapping coefficients from the plurality of antennas to the antenna port form a beam forming vector; the fact that the user equipment cannot assume that the two second synchronization signals are transmitted by the same antenna port group means that: the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port cannot be assumed to be the same; the first antenna port is any one of antenna ports used for transmitting one second synchronization signal, and the second antenna port is any one of antenna ports used for transmitting another second synchronization signal.

5. The UE of claim 2, wherein the third receiving module further receives K5 second reference signals and K6 fourth wireless signals; time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and time domain resources occupied by any two second reference signals in the K5 second reference signals are orthogonal; time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two fourth wireless signals of the K6 fourth wireless signals are orthogonal; the K5 and the K6 are each positive integers; a given fourth wireless signal is transmitted by the R3 antenna ports, a given second reference signal is used for determining downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals; the given second reference signal comprises R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively; at least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port; the R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

6. The UE of claim 1 or 2, wherein there are at least two candidate resources of the K candidate resources, wherein the two candidate resources are orthogonal in frequency domain, and wherein the two candidate resources at least partially overlap in time domain.

7. The user equipment of claim 1 or 2, wherein the third radio signal is used to determine a system time, the system time being indexed by an SFN; alternatively, the information carried by the third radio signal is cell-common.

8. The UE of claim 1 or 2, wherein the first time duration is one of L1 candidate time durations, and wherein L1 is a positive integer greater than 1.

9. The user equipment as claimed in claim 1 or 2, wherein K is greater than 2.

10. The UE of claim 1 or 2, wherein the first wireless signal and the second wireless signal are transmitted by a same antenna port group, and wherein the antenna port group comprises a positive integer number of antenna ports.

11. The UE of claim 2, wherein time domain resources occupied by the third radio signal and the first reference signal completely overlap; alternatively, the R2 is greater than the R1; alternatively, the channel parameter is CIR.

12. The UE of claim 3, wherein the first sync signal of the first wireless signals and the K1 first sync signals constitute K3 first sync signals, and wherein the K3 is a sum of the K1 and 1; the K3 first synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier, or the K3 first synchronization signals correspond to the same synchronization sequence, or the K3 first synchronization signals are transmitted on the same carrier.

13. The UE of claim 4, wherein the antenna port group comprises 1 antenna port;

alternatively, the number of antenna ports included in different antenna port groups is the same or different.

14. The UE of claim 4, wherein the association relationship between the position of the given time-frequency resource in the K candidate resources and the first time length is the same as the association relationship between the position of the second time-frequency resource in the K candidate resources and the first time length.

15. The UE of claim 5, wherein the UE cannot assume that any of the third wireless signal and the K6 fourth wireless signals are transmitted by the same antenna port group, and wherein the UE cannot assume that any two of the K6 fourth wireless signals are transmitted by the same antenna port group;

or, the user equipment cannot assume that any one of the first reference signal and the K5 second reference signals is transmitted by the same antenna port group, and the user equipment cannot assume that any two of the K5 second reference signals is transmitted by the same antenna port group;

or, the patterns of the first reference signal and the K5 second reference signals in a time-frequency resource block are the same, and the time-frequency resource block occupies W subcarriers in a frequency domain and occupies I OFDM symbols in a time domain.

16. The UE of claim 5, wherein the R2 sub signals and the R4 sub signals occupy the same subcarriers in the frequency domain, and wherein the R2 is equal to the R4; alternatively, the R3 is equal to the R1; alternatively, the K5 is equal to the K6.

17. The UE of claim 2, wherein each of the R2 antenna ports is formed by antennas in a given antenna pool superimposed through antenna virtualization, the given antenna pool comprising G1 antenna groups, and mapping coefficients of the antennas in the given antenna pool to the antenna ports constitute beamforming vectors; the R1 antenna ports are formed by antennas in the given antenna pool superimposed through antenna virtualization.

18. A base station device supporting a synchronization signal, comprising:

a second sending module: for transmitting a second wireless signal on a second time-frequency resource;

a third sending module: for transmitting a third wireless signal;

wherein the second time-frequency resource is one of K candidate resources, a position of the second time-frequency resource in the K candidate resources being used for determining a first length of time; k is a positive integer greater than 1; the target recipient of the first wireless signal determines the first length of time by determining a location of the second time-frequency resource among the K candidate resources; the length of the CP corresponding to the first wireless signal and the length of the CP corresponding to the second wireless signal are both equal to the first time length; the first wireless signal comprises a first synchronization signal and the second wireless signal comprises a second synchronization signal; the first synchronization signal comprises a PSS, the second synchronization signal comprises an SSS; the third wireless signal is transmitted by R1 antenna ports, the R1 is a positive integer; the third wireless signal is transmitted on a broadcast channel, the broadcast channel comprising a PBCH.

19. The base station device of claim 18, wherein the third transmitting module further transmits a first reference signal; the first reference signal is used for determining downlink channel parameters corresponding to the R1 antenna ports, the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by R2 antenna ports; at least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port; the R2 is a positive integer greater than the R1, alternatively, the R2 is equal to the R1.

20. The base station device of claim 18 or 19, wherein the first sending module further sends K1 first synchronization signals; the first time-frequency resources are orthogonal to the time-domain resources occupied by the K1 first synchronization signals in the time domain, and the time-domain resources occupied by any two first synchronization signals in the K1 first synchronization signals are orthogonal; the K1 is a positive integer.

21. The base station device of claim 20, wherein the second transmitting module further transmits K2 second synchronization signals; the time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two second synchronization signals in the K2 second synchronization signals are orthogonal; the K2 is a positive integer less than or equal to the K1; for any given second synchronization signal of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K candidate resources, and the position of the given time-frequency resource in the K candidate resources is related to the first time length; the K2 second synchronization signals and a second synchronization signal in the second wireless signals constitute K4 second synchronization signals; the K4 second synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier wave; for any two second synchronization signals of the K4 second synchronization signals, the target receiver of the first wireless signal cannot assume that the two second synchronization signals are transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports; the antenna port is formed by virtualization superposition of a plurality of antennas, and mapping coefficients from the antennas to the antenna port form a beam forming vector; the target recipient of the first wireless signal being unable to assume that the two second synchronization signals are transmitted by the same antenna port group means: the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port cannot be assumed to be the same; the first antenna port is any one of antenna ports used for transmitting one second synchronization signal, and the second antenna port is any one of antenna ports used for transmitting another second synchronization signal.

22. The base station equipment of claim 19, wherein the third transmitting module further transmits K5 second reference signals and K6 fourth wireless signals; time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and time domain resources occupied by any two second reference signals in the K5 second reference signals are orthogonal; time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two fourth wireless signals in the K6 fourth wireless signals are orthogonal; the K5 and the K6 are each positive integers; a given fourth wireless signal is transmitted by the R3 antenna ports, a given second reference signal is used for determining downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals; the given second reference signal comprises R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively; at least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port; the R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

23. The base station device according to claim 18 or 19, wherein there are at least two candidate resources of the K candidate resources, the two candidate resources are orthogonal in frequency domain, and the two candidate resources at least partially overlap in time domain.

24. Base station device according to claim 18 or 19, characterized in that the third radio signal is used for determining a system time, which system time is indexed by an SFN; alternatively, the information carried by the third radio signal is cell-common.

25. The base station device of claim 18 or 19, wherein the first time length is one of L1 candidate time lengths, and wherein the L1 is a positive integer greater than 1.

26. The base station device according to claim 18 or 19, wherein K is greater than 2.

27. The base station device according to claim 18 or 19, wherein the first wireless signal and the second wireless signal are transmitted by a same antenna port group, the antenna port group comprising a positive integer number of antenna ports.

28. The base station device of claim 19, wherein time domain resources occupied by the third wireless signal and the first reference signal are completely overlapped; alternatively, the R2 is greater than the R1; alternatively, the channel parameter is CIR.

29. The base station device of claim 20, wherein the first synchronization signal of the first wireless signals and the K1 first synchronization signals constitute K3 first synchronization signals, and wherein the K3 is a sum of the K1 and 1; the K3 first synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier, or the K3 first synchronization signals correspond to the same synchronization sequence, or the K3 first synchronization signals are transmitted on the same carrier.

30. The base station device of claim 21, wherein the antenna port group comprises 1 antenna port;

31. The base station device according to claim 21, wherein the association relationship between the position of the given time-frequency resource in the K candidate resources and the first time length is the same as the association relationship between the position of the second time-frequency resource in the K candidate resources and the first time length.

32. The base station device of claim 22, wherein the target recipient of the first wireless signal cannot assume that any of the third wireless signal and the K6 fourth wireless signals are transmitted by the same antenna port group, and wherein the target recipient of the first wireless signal cannot assume that any two of the K6 fourth wireless signals are transmitted by the same antenna port group;

or, the target receiver of the first wireless signal cannot assume that any one of the first reference signal and the K5 second reference signals is transmitted by the same antenna port group, and the target receiver of the first wireless signal cannot assume that any two of the K5 second reference signals is transmitted by the same antenna port group;

33. The base station device of claim 22, wherein the R2 sub signals and the R4 sub signals occupy the same subcarriers in the frequency domain, and wherein the R2 is equal to the R4; alternatively, the R3 is equal to the R1; alternatively, the K5 is equal to the K6.

34. The base station device of claim 19, wherein each of the R2 antenna ports is formed by antennas in a given antenna pool superimposed through antenna virtualization, the given antenna pool comprises G1 antenna groups, and mapping coefficients of the antennas in the given antenna pool to the antenna ports form beamforming vectors; the R1 antenna ports are formed by antennas in the given antenna pool superimposed through antenna virtualization.

35. A method in a UE supporting synchronization signals, comprising the steps of:

-a. receiving a first wireless signal on a first time-frequency resource;

-step b. receiving a second radio signal on a second time-frequency resource;

-step c. receiving a third wireless signal;

wherein the second time-frequency resource is one of K candidate resources, a position of the second time-frequency resource in the K candidate resources being used for determining a first length of time; k is a positive integer greater than 1; the UE determines the first time length by determining a position of the second time-frequency resource in the K candidate resources; the length of the CP corresponding to the first wireless signal and the length of the CP corresponding to the second wireless signal are both equal to the first time length; the first wireless signal comprises a first synchronization signal and the second wireless signal comprises a second synchronization signal; the first synchronization signal comprises a PSS, the second synchronization signal comprises an SSS; the third wireless signal is transmitted by R1 antenna ports, the R1 is a positive integer; the third wireless signal is transmitted on a broadcast channel, the broadcast channel comprising a PBCH.

36. The method of claim 35, wherein step C further comprises the steps of:

-step C0. receiving a first reference signal;

the first reference signal is used for determining downlink channel parameters corresponding to the R1 antenna ports, the first reference signal includes R2 sub-signals, and the R2 sub-signals are respectively transmitted by R2 antenna ports; at least one given antenna port exists in the R1 antenna ports, and at least two sub-signals in the R2 sub-signals are used for determining downlink channel parameters corresponding to the given antenna port; the R2 is a positive integer greater than the R1, alternatively, the R2 is equal to the R1.

37. The method of claim 35 or 36, wherein step a further comprises the steps of:

-a step a1. receiving K1 first synchronization signals;

the time domain resources occupied by the first time frequency resources and the time domain resources occupied by the K1 first synchronization signals are orthogonal in the time domain, and the time domain resources occupied by any two first synchronization signals in the K1 first synchronization signals are orthogonal; the K1 is a positive integer.

38. The method of claim 37, wherein step B further comprises the steps of:

-a step b1. receiving K2 second synchronization signals;

the time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two second synchronization signals in the K2 second synchronization signals are orthogonal; the K2 is a positive integer less than or equal to the K1; for any given second synchronization signal of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K candidate resources, and the position of the given time-frequency resource in the K candidate resources is related to the first time length; the K2 second synchronization signals and a second synchronization signal in the second wireless signals constitute K4 second synchronization signals; the K4 second synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier wave; for any two second synchronization signals in the K4 second synchronization signals, the UE cannot assume that the two second synchronization signals are transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports; the antenna port is formed by virtually superposing a plurality of antennas, and mapping coefficients from the plurality of antennas to the antenna port form a beam forming vector; the UE being unable to assume that the two second synchronization signals are transmitted by the same antenna port group means: the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port cannot be assumed to be the same; the first antenna port is any one of antenna ports used for transmitting one second synchronization signal, and the second antenna port is any one of antenna ports used for transmitting another second synchronization signal.

39. The method of claim 36, wherein step C further comprises the steps of:

-a step c1. receiving K5 second reference signals;

-step C2. receiving K6 fourth wireless signals;

time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and time domain resources occupied by any two second reference signals in the K5 second reference signals are orthogonal; time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two fourth wireless signals in the K6 fourth wireless signals are orthogonal; the K5 and the K6 are each positive integers; a given fourth wireless signal is transmitted by the R3 antenna ports, a given second reference signal is used for determining the downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals; the given second reference signal comprises R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively; at least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port; the R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

40. The method according to claim 35 or 36, wherein there are at least two candidate resources among the K candidate resources, the two candidate resources are orthogonal in frequency domain, and the two candidate resources at least partially overlap in time domain.

41. A method according to claim 35 or 36, wherein the third radio signal is used to determine a system time, the system time being indexed by an SFN; alternatively, the information carried by the third radio signal is cell-common.

42. The method of claim 35 or 36, wherein the first length of time is one of L1 candidate lengths of time, and wherein L1 is a positive integer greater than 1.

43. The method of claim 35 or 36, wherein K is greater than 2.

44. The method of claim 35 or 36, wherein the first wireless signal and the second wireless signal are transmitted by a same antenna port group, wherein the antenna port group comprises a positive integer number of antenna ports.

45. The method of claim 36, wherein time domain resources occupied by the third wireless signal and the first reference signal completely overlap; alternatively, the R2 is greater than the R1; alternatively, the channel parameter is CIR.

46. The method of claim 37, wherein the first synchronization signal of the first wireless signals and the K1 first synchronization signals constitute K3 first synchronization signals, and the K3 is a sum of the K1 and 1; the K3 first synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier, or the K3 first synchronization signals correspond to the same synchronization sequence, or the K3 first synchronization signals are transmitted on the same carrier.

47. The method of claim 38, wherein the antenna port group comprises 1 antenna port;

48. The method according to claim 38, wherein the association of the position of the given time-frequency resource in the K candidate resources to the first length of time is the same as the association of the position of the second time-frequency resource in the K candidate resources to the first length of time.

49. The method of claim 39, wherein the UE cannot assume that any one of the third wireless signal and the K6 fourth wireless signals are transmitted by the same antenna port group, and wherein the UE cannot assume that any two of the K6 fourth wireless signals are transmitted by the same antenna port group;

or, the UE cannot assume that any one of the first reference signal and the K5 second reference signals is transmitted by the same antenna port group, and the UE cannot assume that any two of the K5 second reference signals is transmitted by the same antenna port group;

or the patterns of the first reference signal and the K5 second reference signals in a time-frequency resource block are the same, and the time-frequency resource block occupies W subcarriers in the frequency domain and occupies I OFDM symbols in the time domain.

50. The method of claim 39, wherein the R2 sub-signals and the R4 sub-signals occupy the same subcarriers in the frequency domain, and wherein the R2 is equal to the R4; alternatively, the R3 is equal to the R1; alternatively, the K5 is equal to the K6.

51. The method of claim 36, wherein each of the R2 antenna ports is formed by antennas in a given antenna pool superimposed through antenna virtualization, the given antenna pool comprises G1 antenna groups, and mapping coefficients of the antennas in the given antenna pool to the antenna ports form beamforming vectors; the R1 antenna ports are formed by antennas in the given antenna pool superposed through antenna virtualization.

52. A method in a base station supporting synchronization signals, comprising the steps of:

-step c. transmitting a third radio signal;

53. The method of claim 52, wherein said step C further comprises the steps of:

-step C0. sending a first reference signal;

54. The method of claim 52 or 53, wherein the step A further comprises the steps of:

-a step a1. sending K1 first synchronization signals;

55. The method of claim 54, wherein said step B further comprises the steps of:

-step b1. sending K2 second synchronization signals;

the time domain resources occupied by the second time frequency resources and the time domain resources occupied by the K2 second synchronization signals are orthogonal, and the time domain resources occupied by any two second synchronization signals in the K2 second synchronization signals are orthogonal; the K2 is a positive integer less than or equal to the K1; for any given second synchronization signal of the K2 second synchronization signals, the time-frequency resource occupied by the given second synchronization signal is a given time-frequency resource, the given time-frequency resource is one of K candidate resources, and the position of the given time-frequency resource in the K candidate resources is related to the first time length; the K2 second synchronization signals and a second synchronization signal in the second wireless signals constitute K4 second synchronization signals; the K4 second synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier wave; for any two second synchronization signals of the K4 second synchronization signals, the target receiver of the first wireless signal cannot assume that the two second synchronization signals are transmitted by the same antenna port group, where the antenna port group includes a positive integer number of antenna ports; the antenna port is formed by virtualization superposition of a plurality of antennas, and mapping coefficients from the antennas to the antenna port form a beam forming vector; the target recipient of the first wireless signal being unable to assume that the two second synchronization signals are transmitted by the same antenna port group means: the beamforming vector corresponding to the first antenna port and the beamforming vector corresponding to the second antenna port cannot be assumed to be the same; the first antenna port is any one of antenna ports used for transmitting one second synchronization signal, and the second antenna port is any one of antenna ports used for transmitting another second synchronization signal.

56. The method of claim 53, wherein said step C further comprises the steps of:

-step c1. sending K5 second reference signals;

step C2. transmits K6 fourth wireless signals;

time domain resources occupied by the K5 second reference signals and the first reference signals are orthogonal, and time domain resources occupied by any two second reference signals in the K5 second reference signals are orthogonal; time domain resources occupied by the K6 fourth wireless signals and the third wireless signals are orthogonal, and time domain resources occupied by any two fourth wireless signals of the K6 fourth wireless signals are orthogonal; the K5 and the K6 are each positive integers; a given fourth wireless signal is transmitted by the R3 antenna ports, a given second reference signal is used for determining downlink channel parameters corresponding to the R3 antenna ports, the given fourth wireless signal is one of the K6 fourth wireless signals, and the given second reference signal is one of the K5 second reference signals; the given second reference signal comprises R4 sub-signals, the R4 sub-signals being transmitted by R4 antenna ports, respectively; at least one reference antenna port exists in the R3 antenna ports, and at least two sub-signals in the R4 sub-signals are used for determining downlink channel parameters corresponding to the reference antenna port; the R3 is a positive integer, the R4 is a positive integer greater than the R3; or the R4 is equal to the R3.

57. The method according to claim 52 or 53, wherein there are at least two candidate resources among the K candidate resources, wherein the two candidate resources are orthogonal in frequency domain, and wherein the two candidate resources at least partially overlap in time domain.

58. The method of claim 52 or 53, wherein the third radio signal is used to determine a system time, wherein the system time is indexed by an SFN; alternatively, the information carried by the third radio signal is cell-common.

59. The method of claim 52 or 53, wherein the first time duration is one of L1 candidate time durations, and wherein L1 is a positive integer greater than 1.

60. The method of claim 52 or 53, wherein K is greater than 2.

61. The method of claim 52 or 53, wherein the first wireless signal and the second wireless signal are transmitted by a same antenna port group, wherein the antenna port group comprises a positive integer number of antenna ports.

62. The method of claim 53, wherein time domain resources occupied by the third wireless signal and the first reference signal completely overlap; alternatively, the R2 is greater than the R1; alternatively, the channel parameter is CIR.

63. The method of claim 54, wherein the first synchronization signal of the first wireless signals and the K1 first synchronization signals constitute K3 first synchronization signals, and the K3 is the sum of the K1 and 1; the K3 first synchronization signals correspond to the same synchronization sequence and are transmitted on the same carrier, or the K3 first synchronization signals correspond to the same synchronization sequence, or the K3 first synchronization signals are transmitted on the same carrier.

64. The method of claim 55, wherein the antenna port group comprises 1 antenna port;

65. The method according to claim 55, wherein the association of the position of the given time-frequency resource in the K candidate resources to the first length of time is the same as the association of the position of the second time-frequency resource in the K candidate resources to the first length of time.

66. The method of claim 56, wherein the intended recipient of the first wireless signal cannot assume that any one of the third wireless signal and the K6 fourth wireless signals are being transmitted by the same antenna port group, and wherein the intended recipient of the first wireless signal cannot assume that any two of the K6 fourth wireless signals are being transmitted by the same antenna port group;

67. The method of claim 57, wherein the R2 sub-signals and the R4 sub-signals occupy the same subcarriers in the frequency domain, and wherein the R2 is equal to the R4; alternatively, the R3 is equal to the R1; alternatively, the K5 is equal to the K6.

68. The method of claim 53, wherein each of the R2 antenna ports is formed by superposition of antennas in a given antenna pool through antenna virtualization, the given antenna pool comprises G1 antenna groups, and mapping coefficients of the antennas in the given antenna pool to the antenna ports form beamforming vectors; the R1 antenna ports are formed by antennas in the given antenna pool superposed through antenna virtualization.