CN106817210B

CN106817210B - Transmission method and device of reference signal sequence

Info

Publication number: CN106817210B
Application number: CN201510872511.7A
Authority: CN
Inventors: 栗忠峰; 李华; 朱有团
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-12-02
Filing date: 2015-12-02
Publication date: 2020-01-31
Anticipated expiration: 2035-12-02
Also published as: WO2017092535A1; CN106817210A

Abstract

The embodiment of the invention provides a transmission method and equipment of a reference signal sequence, the method comprises that a user equipment receives configuration information sent by a base station, the configuration information is used for indicating th motif sequence group allocated by the base station for the user equipment, wherein the configuration information is generated by the base station based on division modes of the motif sequence group in a communication system where the base station is located, the division modes divide the motif sequence group in the communication system into a plurality of base sequence sets, each base sequence set comprises at least 1 motif sequence group, at least 1 base sequence set in the base sequence sets comprises at least 2 motif sequence groups, the th motif sequence set to which the th motif sequence group belongs is of the base sequence sets, the user equipment determines the th motif sequence group according to the configuration information, and the user equipment generates a reference signal according to the th motif sequence group and sends the reference signal to the base station.

Description

Transmission method and device of reference signal sequence

Technical Field

The embodiment of the invention relates to the field of communication, in particular to a transmission method and equipment of a reference signal sequence.

Background

With the popularization of intelligent terminals, users need higher uplink transmission rate, and base stations need higher spectrum utilization rate. Uplink Multi-User Multiple-Input Multiple-Output (MU-MIMO) can support Multiple User Equipments (UEs) to transmit data to a base station by using the same time-frequency resource, or 1 UE can also support more layers on the same time-frequency resource to improve uplink transmission rate and improve spectrum efficiency.

In the current LTE system, each cell supports uplink MIMO capable of only 4 streams at maximum, and uplink capacity is small.

Disclosure of Invention

The embodiment of the invention provides reference signal sequence transmission methods and devices, so that each cell can be configured with more motif sequence groups and support MIMO with more streams, thereby supporting different UEs in the cell to adopt different motif sequence groups, increasing uplink capacity and improving spectrum efficiency.

, a method for transmitting reference signal sequences is provided, the method includes that a user equipment receives configuration information sent by a base station, the configuration information is used for indicating th motif sequence group allocated by the base station for the user equipment, wherein the configuration information is generated by the base station based on division modes of the motif sequence group in a communication system in which the base station is located, the division modes divide the motif sequence group in the communication system into a plurality of base sequence sets, each base sequence set comprises at least 1 motif sequence group, at least 1 base sequence set in the base sequence sets comprises at least 2 motif sequence groups, a th motif sequence group belonging to th motif sequence set is in the base sequence sets, the user equipment determines the th motif sequence group according to the configuration information, and the user equipment generates a reference signal according to the th motif sequence group and sends the reference signal to the base station.

With reference to , in an possible implementation manner, the th base sequence set is a base sequence set allocated by the base station to a serving cell to which the ue belongs, the division manner is division manners of a base sequence group of the communication system by a network side device that manages the base station, the configuration information includes a set number and an intra-set sequence number, the set number is used to indicate a number of the th base sequence set, the intra-set sequence number is used to indicate a sequence number of the th base sequence group in the th base sequence set, and the ue determines the th base sequence group according to the configuration information, which is specifically implemented in that the ue determines the th base sequence group according to the set number and the intra-set sequence number.

With reference to , in a second possible implementation manner, the base sequence set is a base sequence set corresponding to a current time slot for the ue to transmit a reference signal, the configuration information includes a total number of sets and an intra-set sequence number, where the intra-set sequence number is used to indicate a sequence number of the th base sequence set in the th base sequence set, the number of base sequence sets included in each of the plurality of base sequence sets divided according to the dividing manner is equal, and the total number of the plurality of base sequence sets is equal to the total number of sets, the ue determines the th base sequence set according to the configuration information, which is specifically implemented in that the ue determines the th base sequence set according to a set shifting pattern of the ue, a set hop corresponding to the current time slot for the ue to transmit a reference signal, and the total number of sets, and the ue determines the th base sequence set according to the th base sequence set and the intra-set sequence number.

With reference to the second possible implementation manner of the aspect , in a third possible implementation manner, the ue determines the th set of base sequence sequences according to the set shifting pattern of the ue, the set hop corresponding to the current timeslot where the ue transmits the reference signal, and the total number of the set, and is represented by the following formula:

i＝(f_ch(n_s)+f_cs)mod M，

wherein i represents the set number of the th base sequence set in the plurality of base sequence sets, M represents the total number of the sets, n_sIndicates the current time slot, f_csA set shift pattern indicating the UE is determined by the cell ID of the serving cell to which the UE belongs, the parameter of the higher layer signaling configuration of the serving cell to which the UE belongs and the total number of sets M, or the parameter of the higher layer signaling configuration of the serving cell to which the UE belongs and the total number of sets M, f_ch(n_s) Represents the current time slot n_sThe corresponding set jump takes a value of 0 when the set jump is closed and takes a value of 0 when the set jump is enabledIndicating a pseudorandom sequence in the current time slot n_sThe initialization value at every frames is determined by the cell ID of the serving cell to which the ue belongs, the parameter of the higher layer signaling configuration of the serving cell to which the ue belongs, and the total number M of the set, or by the parameter of the higher layer signaling configuration of the serving cell to which the ue belongs and the total number M of the set.

With reference to , in a fourth possible implementation manner, the base sequence set is a base sequence set corresponding to a current time slot for the user equipment to send a reference signal, the configuration information includes a number of base sequence groups in the set and a number in the set, where the number in the set is used to indicate a number of base sequence groups in the base sequence set of the base sequence group, and the number of base sequence groups included in each of the plurality of base sequence sets divided according to the division manner is equal to the number of base sequence groups in the set, the user equipment determines the base sequence group according to the configuration information, and is specifically implemented in that the user equipment determines the base sequence set according to a set shift mode of the user equipment, a set hop corresponding to the current time slot for the user equipment to send a reference signal, and the number of base sequence groups in the set, and the user equipment determines the base sequence group according to the base sequence set and the number in the set.

With reference to the fourth possible implementation manner of the aspect , in a fifth possible implementation manner, the ue determines the th set of base sequences according to the set shifting pattern of the ue, the set hop corresponding to the current timeslot where the ue transmits the reference signal, and the number of base sequence groups in the set, and is represented by the following formula:

i＝(f_ch(n_s)+f_cs)mod(floor(M₀/g))，

wherein i represents the set number of the th base sequence set in the plurality of base sequence sets, g represents the number of base sequence groups in the set, and n_sIndicates the current time slot, M₀F represents the number of motif group in the communication system in which the base station is located_csThe set shift mode of the user equipment is determined by the cell identification ID of the service cell to which the user equipment belongs, the parameter of the high-level signaling configuration of the service cell to which the user equipment belongs and the number g of the base sequence groups in the set, or the parameter of the high-level signaling configuration of the service cell to which the user equipment belongs and the number g of the base sequence groups in the set, f_ch(n_s) Represents the current time slot n_sThe corresponding set jump takes a value of 0 when the set jump is closed and takes a value of 0 when the set jump is enabled

c(n_s) Indicating a pseudorandom sequence in the current time slot n_sThe initialization value at every frames is determined by the cell ID of the serving cell to which the ue belongs, the parameter of the high-level signaling configuration of the serving cell to which the ue belongs, and the number g of the set base sequence groups, or by the parameter of the high-level signaling configuration of the serving cell to which the ue belongs and the number g of the set base sequence groups.

With reference to the aspect or any possible implementation manners, in a sixth possible implementation manner, the configuration information is sent through RRC signaling and/or DCI.

In a second aspect, a method for transmitting reference signal sequences is provided, the method includes that a base station sends configuration information to a user equipment, the configuration information is used for indicating th motif sequence group allocated by the base station to the user equipment, wherein the configuration information is generated by the base station based on division modes of the motif sequence group in a communication system in which the base station is located, the division modes divide the motif sequence group in the communication system in which the base station is located into a plurality of base sequence sets, each base sequence set comprises at least 1 motif sequence group, at least 1 base sequence set in the base sequence sets comprises at least 2 motif sequence groups, a th motif sequence set to which the th motif sequence group belongs is of the base sequence sets, and the base station receives a reference signal generated by the user equipment according to the th motif sequence group.

With reference to the second aspect, in an th possible implementation manner, the th base sequence set is a base sequence set allocated by the base station to a serving cell to which the ue belongs, the division manner is division manners of base sequence groups of the network side device that manages the base station to the communication system, the configuration information includes a set number and an intra-set sequence number, the set number is used to indicate a number of the th base sequence set, the intra-set sequence number is used to indicate a sequence number of the th base sequence group in the th base sequence set, and the set number and the intra-set sequence number are used by the ue to determine the th base sequence group according to the set number and the intra-set sequence number.

With reference to the second aspect, in a second possible implementation manner, the th base sequence set is a base sequence set corresponding to the current time slot for the ue to transmit the reference signal, the configuration information includes a total number of sets and an intra-set sequence number, the intra-set sequence number is used to indicate a sequence number of the th base sequence set in the th base sequence set, the number of base sequence sets included in each of the plurality of base sequence sets divided according to the dividing manner is equal, the total number of the plurality of base sequence sets is equal to the total number of sets, and the total number of sets and the intra-set sequence number are used for the ue to determine the th base sequence set according to the set shift mode of the ue, the set hop corresponding to the current time slot for the ue to transmit the reference signal, and the total number of sets.

With reference to the second aspect, in a third possible implementation manner, the th base sequence set is a base sequence set corresponding to the user equipment in a current time slot for sending the reference signal, the configuration information includes a number of base sequence groups in a set and a sequence number in a set, the sequence number in a set is used to indicate a sequence number of the th base sequence group in the th base sequence set, the number of base sequence groups included in each of the plurality of base sequence sets divided according to the dividing manner is equal to the number of base sequence groups in the set, and the number of base sequence groups in a set and the sequence number in a set are used for the user equipment to determine the th base sequence group according to a set shift mode of the user equipment, a set hop corresponding to the current time slot for sending the reference signal by the user equipment, and the number of base sequence groups in the set.

With reference to the second aspect or any possible implementation manners described above, in a fourth possible implementation manner, the configuration information is sent through RRC signaling and/or DCI.

In a third aspect, reference signal sequence transmission methods are provided, the method includes that a network side device divides a motif sequence group of a communication system into a plurality of base sequence sets according to division modes, the number of the motif sequence groups included in each base sequence set is not less than 1, and at least 1 base sequence set in the plurality of base sequence sets includes at least 2 motif sequence groups, and the network side device sends division results of the division modes to a base station governed by the network side device, so that the base station sends configuration information to a user device according to the division modes, and the user device sends reference signals based on the motif sequence groups indicated by the configuration information.

In a fourth aspect, an method for transmitting reference signal sequences is provided, the method includes that a user equipment receives configuration information sent by a base station, wherein the configuration information is used for indicating a th base sequence allocated to the user equipment by the base station, each base sequence group of a serving cell allocated to the user equipment is extended to a base sequence group comprising g base sequences, g is not less than ceil (S/Q), Q is a maximum value of the number of MIMO streams that can be supported by base sequences, S is the number of MIMO streams that the serving cell of the user equipment needs to support, and S is the number of MIMO streams that the serving cell of the user equipment needs to support>Q, the motif group to which the th base sequence belongs is of the motif group expanded by the communication system, the number of resource blocks RB of the uplink bandwidth of the user equipment is greater than or equal to a predetermined threshold L, L is a multiple of 2,3 or 5, L is an integer not less than ceil ((Z)/12), and Z is not less than M₀Minimum prime number of g +1, M₀Indicating the number of the motif group in the communication system of the base station, the user equipment determining the th base sequence according to the configuration information, the user equipment generating the reference signal according to the th base sequence and sending the reference signal to the base station.

With reference to the fourth aspect, in an th possible implementation manner, the th motif group is a motif group corresponding to a current time slot for the ue to send a reference signal, the configuration information includes an intra-group sequence number, where the intra-group sequence number is used to indicate a sequence number of the th motif group in the th motif group, the ue determines the th motif group according to the configuration information, which is specifically implemented by determining, by the ue, the th motif group according to a sequence shift pattern of the ue and a group hop corresponding to the current time slot, and determining, by the ue, the th motif group in the th motif group according to the intra-group sequence number.

With reference to the fourth aspect, in a second possible implementation manner, the ue determines the th motif group according to the sequence shift pattern of the ue and the group hop corresponding to the ue in the current timeslot, and the formula is as follows:

u＝(f_gh(n_s)+f_ss)mod M₀，

wherein u represents the group number of the th motif group, and n_sIndicates the current time slot, f_ssA sequence shift pattern representing the user equipment, determined by the cell identity, ID, of the serving cell to which the user equipment belongs and parameters of the higher layer signaling configuration of the serving cell to which the user equipment belongs, or by parameters of the higher layer signaling configuration of the serving cell to which the user equipment belongs, f_gh(n_s) Indicating the current time slot n in which the reference signal is transmitted_sThe corresponding group jump takes a value of 0 when the group jump is closed and takes a value of 0 when the group jump is enabled

c(n_s) Indicating a pseudorandom sequence in the current time slot n_sThe initialization value at every frames is determined by the cell ID of the serving cell to which the ue belongs and the parameters of the higher layer signaling configuration of the serving cell to which the ue belongs, or by the parameters of the higher layer signaling configuration of the serving cell to which the ue belongs.

With reference to the fourth aspect or any possible implementation manners described above, in a third possible implementation manner, the configuration information is specifically sent through RRC signaling or DCI.

In a fifth aspect, an method for transmitting reference signal sequences is provided, the method includes that a base station sends configuration information to a user equipment, wherein the configuration information is used for indicating a th base sequence allocated to the user equipment by the base station, each base sequence group allocated to a serving cell of the user equipment is extended to a base sequence group containing g base sequences, g is not less than ceil (S/Q), Q is a maximum value of the number of MIMO streams that can be supported by base sequences, S is the number of MIMO streams that the serving cell of the user equipment needs to support, and S is the number of MIMO streams that the serving cell of the user equipment needs to support>Q, the motif group to which the th motif sequence belongs is the communication system of the sequence of the uniformly expanded sequence, and the number of resource blocks RB of the uplink bandwidth of the user equipment is larger than or equal to a predetermined threshold value L, wherein L is a multiple of 2,3 or 5, L is an integer not smaller than ceil ((Z)/12), and Z is larger than or equal to M₀Minimum prime number of g +1, M₀Indicating the number of the motif group in the communication system of the base station, and receiving the reference signal generated by the user equipment according to the th base sequence by the base station.

With reference to the fifth aspect, in an th possible implementation manner, the th motif group is a motif group corresponding to a current time slot in which the ue transmits a reference signal, the configuration information includes an intra-group sequence number, the intra-group sequence number is used to indicate a sequence number of the th motif group in the th motif group, and the ue is capable of determining the th motif group according to a sequence shift pattern of the ue and a group hop corresponding to the current time slot of the ue.

With reference to the fifth aspect or any possible implementation manners described above, in a second possible implementation manner, the configuration information is specifically sent through RRC signaling or DCI.

In a sixth aspect, user equipment are provided for performing the method in a possible implementation form of aspect or aspect of aspect .

In particular, the user equipment may comprise means for performing the method in th aspect or any of the th possible implementations of .

In a seventh aspect, base stations are provided for performing the second aspect or the method in any possible implementation manner of the second aspect.

In particular, the base station may comprise means for performing the second aspect or the method in any possible implementation of the second aspect.

In an eighth aspect, network side devices are provided for performing the method of the third aspect or any possible implementation manner of the third aspect.

In particular, the network side device may comprise means for performing the method of the third aspect or any possible implementation manners of the third aspect.

In a ninth aspect, user equipment are provided for performing the method of the fourth aspect or any of the possible implementations of the fourth aspect.

In particular, the user equipment may comprise means for performing the method of the fourth aspect or any possible implementation of the fourth aspect.

In a tenth aspect, base stations are provided for performing the method of the fifth aspect or any possible implementation manner of the fifth aspect.

In particular, the base station may comprise means for performing the fifth aspect or the method in any possible implementation of the fifth aspect.

In a tenth aspect, user equipment is provided, comprising a memory for storing instructions and a processor for executing the instructions stored by the memory, and execution of the instructions stored in the memory causes the processor to perform the method in a possible implementation of the aspect or of any aspect of the aspect.

In a twelfth aspect, base stations are provided, comprising a memory for storing instructions and a processor for executing the instructions stored by the memory, and execution of the instructions stored in the memory causes the processor to perform the second aspect or the method of any possible implementation of the second aspect.

In a thirteenth aspect, network-side devices are provided, which include a memory for storing instructions and a processor for executing the instructions stored in the memory, and the execution of the instructions stored in the memory causes the processor to execute the third aspect or the method in any possible implementation manner of the third aspect.

In a fourteenth aspect, user equipment is provided, comprising a memory for storing instructions and a processor for executing the instructions stored by the memory, and execution of the instructions stored in the memory causes the processor to perform the method of the fourth aspect or any of the possible implementations of the fourth aspect.

In a fifteenth aspect, base stations are provided, comprising a memory for storing instructions and a processor for executing the instructions stored by the memory, and execution of the instructions stored in the memory causes the processor to perform the method of the fifth aspect or any possible implementation of the fifth aspect.

In a sixteenth aspect, computer readable media are provided, the computer readable storage media storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, are capable of causing the portable electronic device to perform the method of possible implementations of aspect or aspect of any .

In a seventeenth aspect, computer readable media are provided, the computer readable storage media storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, are capable of causing the portable electronic device to perform the second aspect or the method of any possible implementation of the second aspect.

In an eighteenth aspect, computer readable media are provided, the computer readable storage media storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, are capable of causing the portable electronic device to perform the method of the third aspect or any possible implementation of the third aspect.

Nineteenth aspect, there is provided computer readable media storing one or more programs, the one or more programs comprising instructions which, when executed by a portable electronic device comprising a plurality of application programs, are capable of causing the portable electronic device to perform the method of any of the aspects of the fourth or fourth aspects in a possible implementation manner.

In a twentieth aspect, computer readable media are provided, the computer readable storage media storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, are capable of causing the portable electronic device to perform the method of the fifth aspect or any possible implementation of the fifth aspect.

In the embodiment of the invention, after receiving the configuration information sent by the base station based on the divided base sequence set, the user equipment determines the base sequence set used by the user equipment for sending the reference signal according to the base sequence set indicated by the configuration information, so that more base sequence sets are allocated in each cell to support MIMO with more streams, thereby supporting different UEs in the cell to adopt different base sequence sets, increasing uplink capacity and improving spectrum efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a base sequence grouping of LTE.

Fig. 2 is a schematic diagram of transmission methods of a reference signal sequence according to an embodiment of the present invention.

Fig. 3 is a flow chart of interactions for reference signal sequence transmission according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of root sequence group division according to an embodiment of the present invention.

Fig. 5 is another interaction flow diagrams for reference signal sequence transmission according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of another transmission methods of the reference signal sequence according to the embodiment of the invention.

Fig. 7 is a diagram of another transmission methods of the reference signal sequence according to the embodiment of the invention.

Fig. 8 is a flow chart of another interactions for reference signal sequence transmission according to an embodiment of the present invention.

Fig. 9 is a flow chart of another interactions for reference signal sequence transmission according to an embodiment of the present invention.

Fig. 10 is a schematic diagram of another base sequence groupings of an embodiment of the present invention.

Fig. 11 is a schematic diagram of another base sequence groupings in accordance with an embodiment of the present invention.

Fig. 12 is a schematic diagram of another base sequence groupings in accordance with an embodiment of the present invention.

Fig. 13 is a diagram of another transmission methods of the reference signal sequence according to the embodiment of the invention.

Fig. 14 is a schematic structural diagram of a physical device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.

To facilitate an understanding of the embodiments of the present invention, a few elements that will be introduced in the description of the embodiments of the present invention are first introduced here.

Function ceil (x): representing the smallest integer greater than x. For example, ceil (7.3) ═ 8, ceil (3.9) ═ 4, and ceil (4) ═ 4.

The function floor (x): representing the largest integer less than x. For example, floor (7.3) ═ 7, floor (3.9) ═ 7, and floor (4) ═ 4.

The function round (x): representing the nearest integer to x. For example, round (7.3) ═ 7, round (3.9) ═ 4, round (4) ═ 4, and round (4.5) ═ 5.

ZC sequence: all known as Zadoff-Chu sequences, orthogonal sequences can be generated by cyclic shifts.

For example, assuming that the root sequence length is 31, (31-1) is 30 in total with a positive integer which is relatively prime to 31 and is smaller than 31, that is, when the root sequence length is 31, the index number is 30.

The length of the base sequence is an integer multiple of 12, is a sequence length of a reference signal required by the user equipment, for example, the length of the root sequence is 31, and the base sequence with the length of 36 (i.e. 3RB) is expanded by copying the 5 elements in front of the root sequence to the back.

Motif group the motif group may include 1 or more base sequences, for example, in the 30-group motif group of LTE, each motif group includes 1 base sequence if the base sequence length is 60 or less (i.e., 5RB), and 2 base sequences if the base sequence length is 72 or more (i.e., 6 RB).

Base sequence set in the embodiments of the present invention, the base sequence group of the communication system may be divided, and a plurality of base sequence groups divided at constitute sets, which are referred to as base sequence sets, and base sequence sets may include or more base sequence groups.

The technical scheme of the invention can be applied to various communication systems, such as: global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), and the like.

User Equipment (UE), also referred to as Mobile Terminal (Mobile Terminal), Mobile User Equipment (UE), and so on, may communicate with or more core networks via a Radio Access Network (RAN, Radio Access Network, for example), and the User Equipment may be Mobile terminals, such as Mobile phones (or "cellular" phones) and computers with Mobile terminals, such as portable, pocket, hand-held, computer-embedded, or vehicle-mounted Mobile devices, which exchange languages and/or data with the Radio Access Network.

The Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, or an evolved node b (eNB or e-NodeB) in LTE, and the following embodiments are not limited in the present invention, but for convenience of description, the eNB is taken as an example for explanation.

Fig. 1 is a schematic diagram of a base sequence grouping of LTE. In the LTE protocol, ZC (Zadoff-Chu) sequences are used to generate Uplink Reference signals, including Demodulation Reference Signal (DRS) of Physical Uplink Shared Channel (PUSCH), DRS of Physical Uplink Control Channel (PUCCH), and Sounding Reference Signal (SRS). The ZC sequence generates orthogonal reference signals by cyclic shift. As shown in FIG. 1, the base sequence

The method comprises the following steps that 30 groups are included, the group number u belongs to {0, 1.., 29}, and when m is more than or equal to 1 and less than or equal to 5, each group only comprises 1 base sequence, namely the sequence number v in the group is 0; in that

Each group contains 2 base sequences, i.e., the intra-group number v is 0, 1. m is the length of the base sequence in RB units,

indicating the maximum number of RBs for uplink transmission.

Fig. 2 is a schematic diagram of a transmission method of a reference signal sequence according to an embodiment of the present invention. The method of fig. 2 is performed by a user equipment.

201, the user equipment receives configuration information sent by a base station, wherein the configuration information is used for indicating th motif group allocated by the base station for the user equipment.

The base station generates the configuration information based on partition manners of the motif sequence group in the communication system in which the base station is located, the partition manners partition the motif sequence group in the communication system into a plurality of base sequence sets, each base sequence set comprises at least 1 motif sequence group, at least 1 base sequence set in the plurality of base sequence sets comprises at least 2 motif sequence groups, and the th base sequence set to which the th motif sequence group belongs is of the plurality of base sequence sets.

It should be understood that, in this embodiment of the present invention, the number of Multiple-Input Multiple-Output (MIMO) streams that can be supported by the base sequence set to which the base sequence group of the user equipment belongs is not less than the number of MIMO streams that need to be supported by the serving cell of the user equipment.

It should be understood that, in the embodiment of the present invention, the Network side device may be a centralized base station in a centralized base station communication system, or a base station Controller, or a Radio Network Controller (RNC), etc. after the Network side device divides the motif groups in the communication system, the Network side device may notify the base station governed by the Network side device through broadcast or other predefined manners.

For example, the network side device divides types of the 30 motif group groups of LTE into {0,1}, {2,3}, {4,5}, {6,7,8}, {9,10,11}, {12,13,14}, {15,16,17}, {18,19,20,21}, {22,23,24,25}, and {26,27,28,29}, wherein the group numbers of the motif group groups numbered as LTE in the set can number the sets to form base sequence set tables of 0: {0,1}, 1: {2,3}, 2: {4,5}, 3: {6,7,8}, 4: {9,10,11}, 5: {12,13,14}, 6: {15,16, 17: {18,19,20,21}, 8: {22,23, 24: {22, 24: { 28 }, and sends the base sequences to the base station set and sends the base station set tables of the base station set .

For example, the protocol may specify that the motif column group in the communication system is divided according to 2 motif column groups per base sequence set, or 3 motif column groups per base sequence set, or 4 motif column groups per base sequence set, and so on.

202, the user equipment determines the th motif group according to the configuration information.

203, the user equipment generates a reference signal according to the th motif group and sends the reference signal to the base station.

In addition, in the embodiment of the present invention, by allocating more motif groups in each cell, it can also be supported that the UE adopts different motif groups in different frequency bands within the same time slots under a large bandwidth condition, so as to reduce a Peak to Average Power Ratio (PAPR).

Optionally, as embodiments, the -th base sequence set is a base sequence set allocated by the base station to a serving cell to which the ue belongs, the partition manner is types of partition manners of a network side device that manages the base station to a sequence number group of the communication system, the configuration information includes a set number and an intra-set sequence number, the set number is used to indicate a number of the -th base sequence set, and the intra-set sequence number is used to indicate a sequence number of the -th sequence group in the -th base sequence set, and the step 202 is specifically implemented by the ue determining the -th sequence group according to the set number and the intra-set sequence number.

It should be understood that, in the embodiment of the present invention, after the network side device divides the basic sequence group of the communication system into a plurality of basic sequence sets and notifies the base station, the base station may allocate basic sequence sets for each cell governed by the base station, where each cells correspond to basic sequence sets.

For example, if the number of MIMO streams that a cell needs to support is 16, the number of MIMO streams that the base sequence set corresponding to the cell can support should be no less than 16.

Optionally, as another embodiments, the th base sequence set is a base sequence set corresponding to the current timeslot where the ue transmits the reference signal, the configuration information includes a total number of sets and an intra-set sequence number, where the intra-set sequence number is used to indicate a sequence number of the th base sequence set in the th base sequence set, the number of base sequence sets included in each of the plurality of base sequence sets divided according to the dividing manner is equal, and the total number of the plurality of base sequence sets is equal to the total number of sets, step 202 may be specifically implemented as the ue determines the th base sequence set according to a set shifting pattern of the ue, a set hop corresponding to the current timeslot where the ue transmits the reference signal, and the total number of sets, and the ue determines the th base sequence set according to the th base sequence set and the intra-set sequence number.

It should be understood that, in the embodiment of the present invention, the number of MIMO streams that can be supported by base sequence sets should be no less than the number of MIMO streams that the serving cell of the ue needs to support, step , in step 202, the ue determines that the th base sequence set is represented by the following formula according to the set shifting pattern of the ue, the set hop corresponding to the current timeslot where the ue transmits the reference signal, and the total number of the set:

i＝(f_ch(n_s)+f_cs)mod M，

wherein i represents the set number of the th base sequence set in the plurality of base sequence sets, M represents the total number of the sets, n_sIndicates the current time slot, f_csA set shift pattern indicating the UE is determined by the cell ID of the serving cell to which the UE belongs, the parameter of the higher layer signaling configuration of the serving cell to which the UE belongs and the total number of sets M, or the parameter of the higher layer signaling configuration of the serving cell to which the UE belongs and the total number of sets M, f_ch(n_s) Represents the current time slot n_sThe corresponding set jump takes a value of 0 when the set jump is closed and takes a value of 0 when the set jump is enabledc(n_s) Indicating a pseudorandom sequence in the current time slot n_sThe initialization value at every frames is determined by the cell ID of the serving cell to which the ue belongs, the parameter of the higher layer signaling configuration of the serving cell to which the ue belongs, and the total number M of the set, or by the parameter of the higher layer signaling configuration of the serving cell to which the ue belongs and the total number M of the set.

Set displacement pattern f_csThe values of (2) can be referred to the values of the sequence shift pattern in the prior art. For example, for PUSCH, if higher layers are not configured

Or the PUSCH transmission is for random access grant, or the PUSCH is for TB retransmission in contention of random access, the set shift mode of the PUSCH and the set shift mode of the PUSCH may be determined according to the cell ID of the serving cell to which the user equipment belongs, the parameter of the higher layer signaling configuration of the serving cell to which the user equipment belongs, and the total number M of the set

Wherein Δ_csE {0, 1., M-1} is configured by higher layer signaling,

a cell ID indicating a serving cell of the user equipment; otherwise, the set shift mode of the PUSCH and the set shift mode of the PUSCH can be determined according to the parameters configured by the higher layer signaling of the serving cell to which the user equipment belongs and the total number M of the set

Wherein

Configured by higher layer signaling, canTo refer to 5.5.1.5 of LTE 36.211. Alternatively, for the SRS, the set shift pattern of the SRS may be determined according to the parameter configured by the higher layer signaling of the serving cell to which the ue belongs and the total number M of the set, and the set shift pattern of the SRS may be determined

Wherein

Configured by higher layer signaling, reference may be made to 5.5.1.5 of LTE 36.211.

Or, optionally, as another embodiments, the -th base sequence set is a base sequence set corresponding to a current time slot for sending the reference signal by the user equipment, where the configuration information includes a number of base sequence groups in a set and a sequence number in a set, where the sequence number in a set is used to indicate a sequence number of the -th base sequence group in the -th base sequence set, and the number of base sequence groups included in each of the plurality of base sequence sets divided according to the dividing manner is equal to the number of base sequence groups in the set, step 202 may be specifically implemented by the user equipment determining the -th base sequence set according to a set shifting mode of the user equipment, a set hop corresponding to the current time slot for sending the reference signal by the user equipment, and the number of base sequence groups in the set, and the user equipment determining the -th base sequence group according to the -th base sequence set and the sequence number in the set.

, in step 202, the ue determines the th set of base sequences according to the set shift pattern of the ue, the set hop corresponding to the current timeslot for transmitting the reference signal and the number of base sequence groups in the set, and is represented by the following formula:

i＝(f_ch(n_s)+f_cs)mod(floor(M₀/g))，

wherein i represents the set number of the th base sequence set in the plurality of base sequence sets, and g represents the number of base sequence groups in the set，n_sIndicates the current time slot, M₀F represents the number of motif group in the communication system in which the base station is located_csThe set shift mode of the user equipment is determined by the cell identification ID of the service cell to which the user equipment belongs, the parameter of the high-level signaling configuration of the service cell to which the user equipment belongs and the number g of the base sequence groups in the set, or the parameter of the high-level signaling configuration of the service cell to which the user equipment belongs and the number g of the base sequence groups in the set, f_ch(n_s) Represents the current time slot n_sThe corresponding set jump takes a value of 0 when the set jump is closed and takes a value of 0 when the set jump is enabledc(n_s) Indicating a pseudorandom sequence in the current time slot n_sThe initialization value at every frames is determined by the cell ID of the serving cell to which the ue belongs, the parameter of the high-level signaling configuration of the serving cell to which the ue belongs, and the number g of the set base sequence groups, or by the parameter of the high-level signaling configuration of the serving cell to which the ue belongs and the number g of the set base sequence groups.

Similar to the scheme in which the configuration information includes the total number of sets and the sequence numbers in the sets, for the PUSCH, if the higher layer is not configured or PUSCH transmission is for random access grant, or the PUSCH is retransmitted for the TB in contention of random access, the set shift mode of the PUSCH may be determined according to the cell ID of the serving cell to which the user equipment belongs, the parameter of the higher layer signaling configuration of the serving cell to which the user equipment belongs, and the number g of base sequence groups in the set. Taking LTE as an example, M₀Value 30, set shift pattern of PUSCHWherein Δ_csE {0, 1., (floor (30/g)) -1}, configured by higher layer signaling, representing the cell ID of the serving cell of the user equipment; otherwise, the set shift module of the PUSCH can be determined according to the parameters of the higher layer signaling configuration of the serving cell to which the user equipment belongs and the group number g of the base sequences in the setFormula (i), where the set shift pattern of PUSCH is configured by higher layer signaling, may refer to 5.5.1.5 of LTE 36.211. Alternatively, for the SRS, the set shift pattern of the SRS may be determined according to the parameter configured by the higher layer signaling of the serving cell to which the ue belongs and the number g of base sequence groups in the set, where the set shift pattern of the SRS is configured by the higher layer signaling, which may refer to 5.5.1.5 of LTE 36.211.

After the user equipment determines the motif group in the manner of the above-described embodiment, the sequence jump can also be determined with reference to the prior art method.

algorithms for determining sequence jumps are specifically as follows:

when the sequence jumps, all motif groups of 1 cell jump simultaneously, since cells have multiple motif groups, when sequence jumps are supported, multiple motif groups jump in the same pattern

There will be sequence jumps. When in use

When v is 0. When in use

When there is

Wherein, the pseudo-random sequence c (n)_s) The value of (2) can refer to 7.2 of 36.211 of LTE. For the PUSCH, the pseudo random sequence initial value may be determined by the cell ID of the serving cell to which the user equipment belongs, the parameter of the higher layer signaling configuration of the serving cell to which the user equipment belongs, and the total number M of the set

Wherein Δ_csE {0, 1., M-1} is configured by higher layer signaling,

a cell ID indicating a serving cell of the user equipment,

configured by higher layer signaling, reference may be made to 5.5.1.5 of LTE 36.211; for SRS, the initial value of the pseudo-random sequence can be determined by parameters of higher layer signaling configuration of a serving cell to which the user equipment belongs and the total number M of the set

Wherein

Configured by higher layer signaling, refer to 5.5.1.5, delta of LTE36.211_csE {0, 1.,. M-1} is configured by higher layer signaling. Of course, if the configuration parameter includes the number g of base sequence groups in the set, the total number M of the set may be replaced by floor (30/g).

Then, according to the sequence hop, the UE may select a base sequence corresponding to the sequence hop from a base sequence group corresponding to the current time slot, generate a reference signal based on the base sequence, and send the reference signal to the base station.

For the convenience of understanding, generation modes of the reference signal are as follows:

wherein,

denotes the length of the reference signal sequence, m is the number of RBs occupied by the frequency domain of the cell,

indicating the maximum number of RBs for uplink transmission. Reference signal sequence is obtained by converting a base sequence

Obtained after cyclic shift.

Optionally, the configuration Information is sent through Radio Resource Control (RRC) signaling and/or Downlink Control Information (DCI). Taking the example that the configuration information includes the set number and the intra-set sequence number, the base station may send the set number and the intra-set sequence number through RRC signaling, or the base station may send the set number through RRC signaling, send the intra-set sequence number through DCI, or send the set number and the intra-set sequence number through DCI, and so on. Of course, it should be understood that the possibility of using other signalling is not excluded.

Fig. 3 is an interaction flow diagram of reference signal sequence transmission according to an embodiment of the present invention.

301, the base station sends configuration information to the UE.

In the embodiment of the present invention, a base station and a UE may agree in advance to divide a motif group of a communication system into a plurality of base sequence sets, where each base sequence set includes an equal number of motif group groups, where the number of motif group groups included in each base sequence set has many values, for example, 2,3, 4, and so on, and each value corresponds to division modes of the motif group.

When the base station sends the configuration information to the UE, it needs to select an appropriate partition mode according to the number of MIMO streams that the serving cell where the UE is located needs to support, and send the configuration information to the UE based on the partition mode, where the configuration information is used to indicate the motif column group allocated by the base station to the UE.

FIG. 4 is a schematic diagram of the division of sequences of motifs in the examples of the present invention. The division methods correspond to 8-stream MIMO (2 motif column groups per base sequence set), 12-stream MIMO (3 motif column groups per base sequence set), and 16-stream MIMO (4 motif column groups per base sequence set). The result of the division is shown in Table 1, wherein i represents the number of the set after the division, j represents the number of the base sequence group in the set after the division, and u represents the number of the base sequence group before the division.

TABLE 1 schematic diagram of the division of the motif groups

i＝0～29	j＝0,1	j＝0,1,2	j＝0,1,2,3
				0	u＝0,1	u＝0,1,2	u＝0,1,2,3
1	u＝2,3	u＝3,4,5	u＝4,5,6,7
				2	u＝4,5	u＝6,7,8	u＝8,9,10,11
3	u＝6,7	u＝9,10,11	u＝12,13,14,15
				4	u＝8,9	u＝12,13,14	u＝16,17,18,19
5	u＝10,11	u＝15,16,17	u＝20,21,22,23
				6	u＝12,13	u＝18,19,20	u＝24,25,26,27
7	u＝14,15	u＝21,22,23	NA
				8	u＝16,17	u＝24,25,26	NA
9	u＝18,19	u＝27,28,29	NA
				10	u＝20,21	NA	NA
11	u＝22,23	NA	NA
				12	u＝24,25	NA	NA
13	u＝26,27	NA	NA
				14	u＝28,29	NA	NA

In the embodiment of the present invention, if the number of motif group in the communication system is M₀If the number of MIMO streams that the serving cell where the UE is located needs to support is S, the number of MIMO streams that each motif sequence group can support is Q, and each base sequence set in the corresponding partitioning manner needs to include g motif sequence groups and can be divided into M base sequence sets, then g and M can be represented by the following formulas:

g＝ceil(S/Q)；M＝floor(M₀/g)。

take 30 motif group of LTE as an example.

For example, if the number of MIMO streams that the serving cell where the UE is located needs to support is 8, and the number of MIMO streams that each motif sequence group can support Q is 4, each base sequence set in the corresponding partitioning scheme needs to include ceil (8/4) ═ 2 motif sequence groups, which can be divided into floor (30/2) ═ 15 base sequence sets.

For another example, if the number of MIMO streams that the serving cell where the UE is located needs to support is 12, and the number of MIMO streams Q that can be supported by each motif sequence group is 4, the base sequence set in the corresponding partition scheme needs to include ceil (12/4) ═ 3 motif sequence groups, which can be classified as floor (30/3) ═ 10 base sequence sets.

For another example, if the number of MIMO streams that the serving cell where the UE is located needs to support is 16, and the number of MIMO streams Q that can be supported by each motif sequence group is 4, the base sequence set in the corresponding partition scheme needs to include ceil (16/4) ═ 4 motif sequence groups, which can be classified as floor (30/4) ═ 7 base sequence sets.

, the configuration information sent by the base station to the UE may include a total number of sets and a sequence number in the sets, where the total number of sets indicates the total number of base sequence sets divided in the division mode and may be used to inform the UE of the division mode of the motif sequence group, and the sequence number in the sets indicates the sequence number of the motif sequence group allocated to the UE in the base sequence set to which the motif sequence group belongs.

Corresponding to 8-stream MIMO, the sequence number in the set is 0 or 1; corresponding to 12-stream MIMO, the sequence number in the set is 0,1 or 2; corresponding to 16-stream MIMO, the number in the set is 0,1,2 or 3.

For example, the base station may transmit configuration information (7, 3), where the total number of sets is 7, the number in the set is 3, the indication is divided into 7 base sequence sets, each base sequence set has 4 motif column groups, and the motif column group allocated to the UE has the number in the base sequence set to which the motif column group belongs being 3, that is, the motif column group that the UE may use is (3,7,11,15,19,23, 27).

The base station may transmit the total number of sets and the sequence numbers in the sets simultaneously or separately. For example, the base station may send the total number of sets and the sequence number in the sets to the UE through RRC signaling; alternatively, the base station may send the total number of sets to the UE through RRC signaling, send the intra-set sequence number to the UE through DCI, and so on.

In another specific implementation manners, the configuration information sent by the base station to the UE may include the number of base sequence groups in the set and the sequence number in the set, where the number of base sequence groups in the set indicates the number of base sequence groups included in each base sequence set divided in the division manner, and may be used to notify the UE of the division manner of the base sequence groups, and the sequence number in the set indicates the sequence number of the base sequence set to which the base sequence group allocated to the UE belongs.

For example, the base station may transmit configuration information (4, 3), where the number of base sequence groups in a set is 4, the number in the set is 3, the base station may be divided into 7 base sequence sets by dividing 4 base sequence groups in each base sequence set, and the number of the base sequence group allocated to the UE in the base sequence set is 3.

Similarly, the base station may transmit the number of base sequence groups in the set and the sequence number in the set simultaneously, or separately. For example, the base station may send the number of base sequence groups in the set and the sequence number in the set to the UE through RRC signaling; alternatively, the base station may send the number of base sequence groups in the set to the UE through RRC signaling, send the sequence number in the set to the UE through DCI, and so on.

302, the UE determines the set of motifs for the UE.

The UE may determine the set of motifs used by the UE based on configuration information sent by the base station.

If the configuration information sent by the base station is the total number of the set and the serial number in the set, the UE determines a base sequence set corresponding to the current time slot according to the set shift mode of the UE, the set hop corresponding to the current time slot for sending the reference signal by the UE and the total number of the set, and then determines a base sequence set corresponding to the current time slot according to the base sequence set corresponding to the current time slot and the serial number in the set. Specifically, the UE may determine a base sequence set corresponding to the current timeslot according to the following formula:

i＝(f_ch(n_s)+f_cs)mod M，

wherein i represents the set number of the th base sequence set in the plurality of base sequence sets, M represents the total number of the sets, n_sIndicates the current time slot, f_csThe set shift mode of the UE is determined by the cell ID of the serving cell to which the UE belongs, the parameter of the higher layer signaling configuration of the serving cell to which the UE belongs and the set total number M, or the parameter of the higher layer signaling configuration of the serving cell to which the UE belongs and the set total number MNumber M is determined, f_ch(n_s) Represents the current time slot n_sThe corresponding set jump takes a value of 0 when the set jump is closed and takes a value of 0 when the set jump is enabled

c(n_s) Indicating a pseudorandom sequence in the current time slot n_sThe initialization value at every frames is determined by the cell ID of the serving cell to which the UE belongs, the parameter configured by the higher layer signaling of the serving cell to which the UE belongs, and the total number M of the set, or by the parameter configured by the higher layer signaling of the serving cell to which the UE belongs and the total number M of the set.

Or, if the configuration information sent by the base station is the number of the base sequence groups in the set and the serial numbers in the set, the UE determines the base sequence set corresponding to the current time slot according to the set shift mode of the UE, the set hop corresponding to the current time slot in which the UE sends the reference signal, and the number of the base sequence groups in the set, and then determines the base sequence group corresponding to the current time slot according to the base sequence set corresponding to the current time slot and the serial numbers in the set. Specifically, the UE may determine a base sequence set corresponding to the current timeslot according to the following formula:

i＝(f_ch(n_s)+f_cs)mod(floor(M₀/g))，

wherein i represents the set number of the th base sequence set in the plurality of base sequence sets, g represents the number of base sequence groups in the set, and n_sIndicates the current time slot, M₀F represents the number of motif group in the communication system in which the base station is located_csThe set shift mode of the UE is determined by the cell ID of the serving cell to which the UE belongs, the parameter of the high-level signaling configuration of the serving cell to which the UE belongs and the number g of the set base sequence groups, or the parameter of the high-level signaling configuration of the serving cell to which the UE belongs and the number g of the set base sequence groups, f_ch(n_s) Represents the current time slot n_sThe corresponding set jump takes a value of 0 when the set jump is closed and takes a value of 0 when the set jump is enabled

c(n_s) Indicating a pseudorandom sequence in the current time slot n_sThe initialization value at every frames is determined by the cell ID of the serving cell to which the UE belongs, the parameter configured by the high-level signaling of the serving cell to which the UE belongs, and the number g of the set internal base sequence groups, or by the parameter configured by the high-level signaling of the serving cell to which the UE belongs, and the number g of the set internal base sequence groups.

In the embodiment of the present invention, the method for defining the pseudo random sequence and obtaining the initial value, the set shift pattern, and the like may refer to the embodiment shown in fig. 2, and details are not repeated here.

After the UE determines the set number, the UE can determine the motif sequence group corresponding to the current time slot according to the set number and the sequence number in the set. Specifically, after the UE determines the base sequence set corresponding to the current time slot by the above method, it may determine, in the base sequence set of the current time slot, that the base sequence set corresponding to the sequence number in the set is the base sequence set corresponding to the current time slot.

For example, the configuration information sent by the base station is (7, 3), and the UE determines that the set number of the base sequence set of the current time slot is 2 (i.e., the base sequence set {8,9,10,11}), then the UE may further determine that the group number of the base sequence group corresponding to the current time slot is 10.

303, the UE generates a reference signal according to the motif group.

For convenience of understanding, ways of generating reference signals from the motif group are described below.

First, the UE may determine a sequence hop of a base sequence corresponding to the current timeslot according to the length of the reference signal sequence.

When the sequence jumps, all motif groups of 1 cell jump simultaneously. The corresponding set of base sequences for a cell may be different in different time slots. However, a plurality of motif group groups exist in the base sequence set corresponding to each cell, and when sequence hopping is supported, the plurality of motif group groups hop in the same pattern. Only at

There will be sequence jumps. When in use

When v is 0. When in use

When there is

Wherein Δ_csE {0, 1., M-1} is configured by higher layer signaling,

a cell ID indicating a serving cell of the user equipment,configured by higher layer signaling, reference may be made to 5.5.1.5 of LTE 36.211; for SRS, the initial value of the pseudo-random sequence can be determined by parameters of higher layer signaling configuration of a serving cell to which the user equipment belongs and the total number M of the set

Wherein

Configured by higher layer signaling, refer to 5.5.1.5, delta of LTE36.211_csE {0, 1.,. M-1} is configured by higher layer signaling. Then, the UE may determine, according to the sequence hop, the sequence group corresponding to the current timeslot in the determined motif groupThe base sequence of (1).

In the protocol of LTE, a ZC sequence is used to generate uplink reference signals including DRSs of PUSCH, DRSs of PUCCH, and SRS. The ZC sequence generates orthogonal reference signals by cyclic shift. Assuming that the root sequence corresponding to the base sequence is a ZC sequence, the root sequence index q of the base sequence in the ZC sequence may be expressed by the following formula:

wherein u ═ 1 × S + t, t denotes the sequence number in the set to which the sequence group to which the base sequence corresponding to the current time slot belongs, S denotes the number of sequence groups included in each base sequence set,

indicates the length of the ZC sequence to satisfy

Is the maximum number of the prime numbers of,

indicates the length of the base sequence.

It should be understood that the number of base sequence indices is limited by the sequence length

Is no more than the constraint of

Is relatively prime, and therefore, is selectedIn prime numbers, the maximum number of base sequence indices that will be available will be

A base sequence index. For example,

the value is 7, 6 numerical values of {1, 2,3, 4,5 and 6} and 7 are mutually prime numbers and can be used as the index of the base sequence.

Expression x for ZC sequences of order q_q(m) satisfies the following formula:

current time slot n_sBase sequence of (1)

Can be expressed by the following formula:

wherein,a table function is looked up for the reference signal sequence,

reference may be made to tables 5.5.1.2-1 and 5.5.1.2-2 of 36.211 for LTE,

indicates the length of a ZC sequence used for the reference signal to be less than

Is the maximum prime number of.

The reference signals obtained from the base sequence are generated as follows:

wherein,

showing a referenceThe length of the signal sequence, m is the number of RBs occupied by the frequency domain of the cell, and represents the maximum number of RBs for uplink transmission. The reference signal sequence is obtained by cyclically shifting the base sequence.

304, the UE transmits a reference signal to the base station.

After the UE generates the reference signal, the UE may send the reference signal to the base station.

Therefore, the base station and the UE realize the whole process of transmitting the uplink reference signal by the UE.

In the embodiment of the invention, the base station sends the configuration information to the UE based on the preset division modes of the motif sequence groups, so that more motif sequence groups are allocated in each cell to support MIMO with more streams, different UEs in the cell can be supported to adopt different motif sequence groups, the uplink capacity is increased, and the spectrum efficiency is improved.

In addition, in the embodiment of the present invention, by allocating more motif groups in each cell, it can also be supported that the UE in the cell uses different motif groups in different frequency bands within timeslots under a large bandwidth condition, so as to reduce PAPR.

Fig. 5 is an interaction flow diagram of the reference signal sequence transmission according to an embodiment of the present invention. In the embodiment of the invention, the network side equipment which governs the base station is the base station controller. Of course, it should be understood that the base station controller according to the embodiment of the present invention may also be replaced with other devices for managing base stations, such as a centralized base station or an RNC, and the embodiment of the present invention is not limited herein.

The base station controller divides all base sequence groups into a plurality of base sequence sets 501.

Taking LTE as an example, in the embodiment of the present invention, the base station controller may divide 30 motif group groups of LTE into a plurality of base sequence sets, each base sequence set includes at least 1 motif group, and at least 1 base sequence set in the plurality of base sequence sets includes at least 2 motif groups.

It is to be understood that the number of motif group groups included in each of the plurality of base sequence sets may be the same or different. In the embodiments of the present invention, the fact that the number of motif sequence groups included in each of the plurality of base sequence sets is different means that the number of motif sequence groups is different in the plurality of base sequence sets, and it is not said that the number of base sequences in any two base sequence sets is different.

Optionally, the division of the motif group is predetermined (e.g., as specified by the protocol) or determined by the base station controller.

For convenience of description, it is not assumed that specific examples of the base sequence set after partition of the BSC are shown as {0,1}, {2,3}, {4,5}, {6,7,8}, {9,10,11}, {12,13,14}, {15,16,17}, {18,19,20,21}, {22,23,24,25}, and {26,27,28,29}, wherein the sequence numbers in the set are used to indicate the sequence numbers of the motif column group in the 30-group motif column group of LTE.

502, the base station controller broadcasts the result of the division of the groups of columns to the base station .

After the base station controller completes the partitioning of the group of motif symbols, the partitioning result may be broadcast to the base stations governed by the base station controller.

The base station controller may broadcast the partitioning result in a number of ways .

For example, the base station controller may use base sequence set tables to represent the result of the division of the base sequence group, and then broadcast the base sequence set table to the governed base stations, wherein the base sequence set table may include the correspondence between the set number of the base sequence set and the base sequence set, and the base sequence group included in each base sequence set, taking the base sequence set table of step 501 as an example, the base station controller may number the base sequence set to form base sequence set tables of 0: {0,1}, 1: {2,3}, 2: {4,5}, 3: {6,7,8}, 4: {9,10,11}, 5: {12,13,14}, 6: {15,16,17}, 7: {18,19,20,21}, 8: {22,23,24,25}, 9: {26,27,28,29}, and broadcast the base sequence set table }.

Also for example, the base station controller may broadcast algorithm for the division of the motif group column to the governed base stations, the base stations extrapolate the results of the division of the motif group column based on the algorithm, and so on.

Of course, other implementations are possible, and embodiments of the invention are not limited thereto.

The base station allocates 503 a set of base sequences.

After receiving the division result sent by the base station controller governing the base station, the base station may allocate a suitable base sequence set to each cell based on the number of MIMO streams that each cell governed by the base station needs to support, so that the maximum value of the number of MIMO streams that the base sequence set corresponding to each cell can support is not less than the number of MIMO streams that the corresponding cell needs to support.

For example, if the base station governs cell a, cell B, and cell C and the number of MIMO streams to be supported is 7, 12, and 15, respectively, the number of motif column groups required for the base sequence sets allocated to cell a, cell B, and cell C is Ceil (7/4), Ceil (12/4), and Ceil (15/4), that is, 2,3, and 4 sets of motif column groups are required, respectively.

The base station sends 504 configuration information to the UE.

The base station may send configuration information to the UE for indicating the set of motifs the base station allocates for the user equipment. In the embodiment of the present invention, the configuration information sent by the base station to the UE may include a set number and an intra-set sequence number. The set number is used for indicating a base sequence set allocated to a serving cell where the UE is located by a base station, and the sequence number in the set is used for indicating a base sequence group allocated to the UE in the base sequence set.

For example, the base station allocates the primary sequence group with number 19 in LTE to the UE, and takes the primary sequence set table shown in step 502 as an example, the configuration information transmitted by the base station is (7, 2), that is, the set number is 7, and the intra-set number is 2.

505, the UE determines the set of motifs for the UE.

The UE can determine the set of motif columns assigned to the UE based on the set number and the intra-set sequence number.

For example, the UE knows the set number 7 and the intra-set number 2 from the configuration information, and can obtain the motif sequence group, that is, the motif sequence group with the group number 19 out of the 30 motif sequence groups in LTE.

The UE generates 506 a reference signal from the set of motifs.

In the embodiment of the present invention, since the number of motif column groups in the base sequence set corresponding to each cell is not completely equal, there is no set hop.

When the sequence jumps, all motif groups of 1 cell jump simultaneously. Only atThere will be sequence jumps. When in use

When v is 0. When in use

When v is equal to c (n)_s) I.e. sequence hop v and current time slot n_sCan be expressed by the following formula:

Wherein Δ_csE {0, 1., M-1} is configured by higher layer signaling,

a cell ID indicating a serving cell of the user equipment,

is configured by the high-layer signaling,reference may be made to 5.5.1.5 of LTE 36.211; for SRS, the initial value of the pseudo-random sequence can be determined by parameters of higher layer signaling configuration of a serving cell to which the user equipment belongs and the total number M of the set

Wherein

Configured by higher layer signaling, refer to 5.5.1.5, delta of LTE36.211_csE {0, 1.,. M-1} is configured by higher layer signaling.

According to the determined root sequence group and sequence hop, the UE may determine a base sequence corresponding to the time slot, and further generate a reference signal according to the determined base sequence, which may refer to the relevant content in step 304 for specific implementation, which is not described herein again in the embodiments of the present invention.

The specific implementation of step 506 can refer to step 303 in fig. 3, and is not described again.

507, the UE transmits a reference signal to the base station.

In the embodiment of the invention, the base station sends the configuration information to the UE based on the types of division modes of the motif sequence group which govern the base station controller of the base station, so that more motif sequence groups are distributed in each cell, MIMO with more streams can be supported to the maximum extent, different UEs in the cell can be supported to adopt different motif sequence groups, the uplink capacity is increased, and the spectrum efficiency is improved.

Fig. 6 is a diagram illustrating another transmission method of a reference signal sequence according to an embodiment of the invention, where the method of fig. 6 is performed by a base station.

601, the base station sends configuration information to the user equipment, wherein the configuration information is used for indicating th motif group allocated to the user equipment by the base station.

The configuration information is generated by the base station based on partition manners of the motif sequence group in the communication system in which the base station is located, the partition manner partitions the motif sequence group in the communication system in which the base station is located into a plurality of base sequence sets, each base sequence set comprises at least 1 motif sequence group, at least 1 base sequence set in the plurality of base sequence sets comprises at least 2 motif sequence groups, and the th base sequence set to which the th motif sequence group belongs is of the plurality of base sequence sets.

602, the base station receives a reference signal generated by the user equipment according to the th motif group.

In the embodiment of the invention, after the base station sends the configuration information to the user equipment based on the divided base sequence set, the user equipment determines the base sequence set used for sending the reference signal according to the base sequence set indicated by the configuration information, so that more base sequence sets are allocated in each cell to support MIMO with more streams, thereby supporting different UEs in the cell to adopt different base sequence sets, increasing uplink capacity and improving spectrum efficiency, or supporting the UEs to adopt different base sequence sets in different frequency bands in the same time slots, and reducing PAPR under the condition of large bandwidth.

Optionally, as embodiments, the -th base sequence set is a base sequence set allocated by the base station to a serving cell to which the ue belongs, the partitioning manner is types of partitioning manners of the network side device that manages the base station for the motif sequence group of the communication system, the configuration information includes a set number and an intra-set sequence number, the set number is used to indicate a number of the -th base sequence set, the intra-set sequence number is used to indicate a sequence number of the -th motif sequence group in the -th base sequence set, and the set number and the intra-set sequence number are used by the ue to determine the -th motif sequence group according to the set number and the intra-set sequence number.

It should be understood that, in the embodiment of the present invention, the base station may allocate base sequence sets to each cell governed by the base station, where each cell corresponds to base sequence sets.

Or, optionally, as another embodiments, the base sequence set is a base sequence set corresponding to the current timeslot where the ue transmits the reference signal, the configuration information includes a set total number and an intra-set sequence number, where the intra-set sequence number is used to indicate a sequence number of the th motif column group in the th base sequence set, the number of motif column groups included in each base sequence set of the multiple base sequence sets divided according to the dividing manner is equal, and the total number of the multiple base sequence sets is equal to the set total number, and the set total number and the intra-set sequence number are used for the ue to determine the th motif column group according to the set shift mode of the ue, the set hop corresponding to the current timeslot where the ue transmits the reference signal, and the set total number.

It should be understood that, in the embodiment of the present invention, the number of MIMO streams that can be supported by base sequence sets should be no less than the number of MIMO streams that need to be supported by the serving cell of the user equipment.

Or, optionally, as another embodiments, the base sequence set is a base sequence set corresponding to the current timeslot where the user equipment transmits the reference signal, the configuration information includes a number of base sequence groups in the set and a sequence number in the set, where the sequence number in the set is used to indicate a sequence number of the th base sequence group in the base sequence set, the number of base sequence groups included in each of the plurality of base sequence sets divided according to the division manner is equal to the number of base sequence groups in the set, and the number of base sequence groups in the set and the sequence number in the set are used for the user equipment to determine the th base sequence group according to the set shift mode of the user equipment, the set hop corresponding to the current timeslot where the user equipment transmits the reference signal, and the number of base sequence groups in the set.

Optionally, the configuration information is transmitted through RRC signaling or DCI. Taking the example that the configuration information includes the set number and the intra-set sequence number, the base station may send the set number and the intra-set sequence number through RRC signaling, or the base station may send the set number through RRC signaling, send the intra-set sequence number through DCI, or send the set number and the intra-set sequence number through DCI, and so on. Of course, it should be understood that the possibility of using other signalling is not excluded. For specific implementation of the embodiment of the present invention, reference may be made to the method performed by the base station in the embodiment shown in fig. 3 and the embodiment shown in fig. 5, and details of the embodiment of the present invention are not repeated herein.

Fig. 7 is a schematic diagram of a re- transmission method of a reference signal sequence according to an embodiment of the present invention, where the method of fig. 7 is performed by a network side device.

701, dividing a motif sequence group of a communication system into a plurality of base sequence sets by network side equipment according to division modes, wherein the number of the motif sequence groups contained in each base sequence set is not less than 1, and at least 1 base sequence set in the plurality of base sequence sets contains at least 2 motif sequence groups.

702, the network side device sends the division result of the division manner to a base station governed by the network side device, so that the base station sends configuration information to the user equipment according to the division manner, so that the user equipment sends a reference signal based on the motif column group indicated by the configuration information.

In the embodiment of the invention, the network side equipment divides the motif sequence group into a plurality of motif sequence sets again, so that more motif sequence groups are distributed in each cell, different UEs in the cell can be supported to adopt different motif sequence groups, uplink capacity is increased, and spectrum efficiency is improved.

In addition, in the embodiment of the invention, by allocating more motif group groups in each cell, the UE in the cell can also be supported to adopt different motif group groups in different frequency bands in the same time slots under the condition of large bandwidth, and the PAPR is reduced.

For a specific implementation of the embodiment of the present invention, reference may be made to a method executed by a base station controller in the embodiment shown in fig. 5, and details of the embodiment of the present invention are not described herein again.

Fig. 8 is a diagram illustrating a re- transmission method of a reference signal sequence according to an embodiment of the present invention, the method of fig. 8 is performed by a user equipment.

801, a user equipment receives configuration information sent by a base station, where the configuration information is used to indicate an th base sequence allocated by the base station for the user equipment.

Wherein, each motif sequence group allocated to the service cell of the user equipment is expanded into a motif sequence group comprising g base sequences, g is not less than ceil (S/Q), Q is the maximum value of the number of MIMO streams which can be supported by base sequences, S is the number of MIMO streams which the service cell of the user equipment needs to support, and>q, the motif group to which the th base sequence belongs is of the motif group expanded by the communication system, the number of RBs of the uplink bandwidth of the user equipment is greater than or equal to a predetermined threshold L, L is a multiple of 2,3 or 5, L is an integer not less than ceil ((Z)/12), and Z is not less than M₀Minimum prime number of g +1, M₀The number of motif group in the communication system in which the base station is located is indicated. In LTE for example, Q may take on a divisor of 12, i.e., 1,2,3, 4, 6, 12, M₀Is 30.

It should be understood that, in the embodiment of the present invention, the base station may configure the motif sequence group including different numbers of base sequences for different cells according to the number of MIMO streams that the cell needs to support. For example, if the cell A, B, C governed by the base station needs to support 8-stream MIMO, 12-stream MIMO, and 16-stream MIMO, respectively, the set of motifs allocated by the base station to the cell A, B, C is extended to a set of motifs comprising 2,3, and 4 base sequences, respectively, and so on.

Optionally, the configuration information is transmitted through RRC signaling or DCI. Of course, it should be understood that the possibility of using other signalling is not excluded.

The user equipment determines the th base sequence based on the configuration information 802.

803, the user equipment generates a reference signal according to the th base sequence and transmits the reference signal to the base station.

In the embodiment of the invention, when the uplink bandwidth of the user equipment is greater than the preset threshold, the user equipment determines the base sequence used by the user equipment for sending the reference signal according to the configuration information after receiving the configuration information sent by the base station based on the expanded base sequence group, so that more base sequences are allocated in each cell to support MIMO with more streams, thereby supporting different UEs in the cell to adopt different base sequences, increasing the uplink capacity and improving the spectrum efficiency.

In addition, in the embodiment of the present invention, by allocating more base sequences in each cell, it can also support the UE in the cell to adopt different base sequences in different frequency bands within the same time slots, thereby reducing PAPR.

Optionally, the th motif group is a motif group corresponding to a current time slot for the ue to send a reference signal, the configuration information includes an intra-group sequence number, the intra-group sequence number is used to indicate a sequence number of the th motif group in the th motif group, step 802 is implemented specifically as the ue determines the th motif group according to a sequence shift pattern of the ue and a group hop corresponding to the current time slot, and the ue determines the th motif group in the th motif group according to the intra-group sequence number.

, in step 802, the ue determines the th motif group according to the sequence shift pattern of the ue and the group hop corresponding to the ue in the current slot, and the following formula is used:

u＝(f_gh(n_s)+f_ss)mod M₀，

wherein u represents the group number of the th motif group, and n_sIndicates the current time slot, f_ssA sequence shift pattern indicating the UE, determined by a cell identification ID of a serving cell to which the UE belongs and parameters of a higher layer signaling configuration of the serving cell to which the UE belongs,or by parameters configured by higher layer signaling of the serving cell to which the UE belongs, f_gh(n_s) Indicating the current time slot n in which the reference signal is transmitted_sThe corresponding group jump takes a value of 0 when the group jump is closed and takes a value of 0 when the group jump is enabled

The method of the present invention will now be described in further detail with reference to specific examples .

Fig. 9 is an interaction flow diagram of reference signal sequence transmission according to an embodiment of the present invention.

901, the base station sends configuration information to the UE.

In the embodiment of the present invention, the base station and the UE may agree in advance, and when the number of resource blocks RB in the uplink bandwidth of the UE is greater than or equal to the predetermined threshold L, the extended motif group of the communication system is extended, so that the maximum value of the number of MIMO streams that can be supported by each motif group after the extension is not less than the number of MIMO streams that the serving cell of the UE needs to support.

Assuming that the number of MIMO streams to be supported by the serving cell of the UE is S, Q is the maximum value of the number of MIMO streams that can be supported by base sequences, the number g of base sequences included in each extended base sequence group is not less than ceil (S/Q), that is, the minimum value of g is ceil (S/Q), L satisfies the conditions that L is a multiple of 2,3 or 5, L is an integer not less than ceil ((Z)/12), and Z is equal to or greater than M₀Minimum prime number of g +1, M₀The number of motif group in the communication system in which the base station is located is indicated. In LTE for example, Q may take on a divisor of 12, i.e., 1,2,3, 4, 6, 12, M₀Is 30.

It should be understood that, when the value of the number m of resource blocks occupied by the uplink bandwidth of the serving cell of the UE is smaller than the predetermined threshold L, the number of base sequences of the base sequence group corresponding to the cell is 1, and at this time, the base sequence group does not need to be extended. In order to enable the cell to support MIMO with multiple streams, correspondingly, the base station may adopt the method performed by the base station in the embodiments shown in fig. 3, fig. 5, and fig. 6, and the corresponding UE side adopts the method performed by the user equipment in the embodiments shown in fig. 2, fig. 3, and fig. 5, which is not described herein again in this embodiment of the present invention.

And determining the number of base sequences in the extended sequence motif group according to the number of MIMO streams required to be supported by the serving cell of the UE, and extending all the sequence motif groups.

In 8-stream MIMO scenario, Q is 4, then M₀Ceil (S/Q) +1 ═ 30 × (8/4) +1 ═ 61, the minimum prime number of 61 or more is 61, i.e., Z ═ 61, ceil ((Z)/12) ═ ceil ((61)/12) ═ 6, a multiple of 2 and 3, in this case, L takes a value of 6, fig. 10 is a schematic diagram of another base sequence groups of the present invention, as shown in fig. 10, when 1 ≦ m ≦ 5 in the 8-stream MIMO scenario, each base sequence group is only , and the intra-group number v is 0, and when m ≧ 6, each base sequence group contains 2 base sequences, and the intra-group number v is 0, 1.

In the 12-stream MIMO scenario, Q is 4, then M₀Ceil (S/Q) +1 ═ 30 × (12/4) +1 ═ 91, the minimum prime number of 91 or more is 97, that is, Z ═ 97, ceil ((Z)/12) ═ ceil ((97)/12) ═ 9, which is a multiple of 3, in which case L takes a value of 9, fig. 11 is a schematic diagram of further base sequence groups of the present invention, as shown in fig. 11, in the 12-stream MIMO scenario, when 1 ≦ m ≦ 8, each base sequence only needs , and the intra-group number v ≦ 0, each base sequence group includes 2 base sequences when m ≧ 6, and the intra-group number v ≦ 0,1, and when m ≧ 9, each base sequence group includes 3 base sequences, and the intra-group number v ≦ 0,1, 2.

In the 16-stream MIMO scenario, Q is 4, and M is₀Ceil (S/Q) +1 ═ 30 ═ 16/4) +1 ═ 121, the minimum prime number of 121 or greater is 127, i.e., Z ═ 127, ceil ((Z)/12) ═ ceil ((127)/12) ═ 11, or greater than 11, and the minimum value of the multiple of 2,3, or 5 is 12, at which point L takes the value 12, fig. 12 is a schematic diagram of further base sequence packets of the present invention, as shown in fig. 12, in a 12-stream MIMO fieldIn the scene, when m is less than or equal to 1 and less than or equal to 11, each motif group only needs root sequences, and the intra-group serial number v is 0, and when m is more than or equal to 12, each motif group comprises 4 base sequences, and the intra-group serial number v is 0,1,2 and 3.

In addition, it should be understood that, in the embodiment of the present invention, the base station may configure the motif array group including different numbers of base sequences for different cells according to the number of MIMO streams that the cell needs to support. For example, if the cell A, B, C governed by the base station needs to support 8-stream MIMO, 12-stream MIMO, and 16-stream MIMO, respectively, the set of motifs allocated by the base station to the cell A, B, C is extended to a set of motifs comprising 2,3, and 4 base sequences, respectively, and so on.

Based on the extended sequence group, the base station may send configuration information to the UE, where the configuration information includes an intra-group sequence number indicating a sequence number of the UE in the sequence group to which the base sequence belongs.

902, the UE determines the set of motifs and the base sequence of the UE.

After the UE receives the configuration information sent by the base station, the sequence shift mode of the UE and the group hop corresponding to the current time slot of the UE for sending the reference signal may be used to determine the sequence motif group to which the base sequence of the current time slot belongs, and further determine the base sequence corresponding to the sequence number in the group motif group.

The UE determines a basic sequence group to which a basic sequence of a current time slot belongs according to a sequence shift pattern of the UE and a group hop corresponding to the current time slot in which the UE transmits a reference signal, and the basic sequence group may be specifically represented by the following formula:

u＝(f_gh(n_s)+f_ss)mod M₀，

wherein u represents the group number of the th motif group, and n_sIndicates the current time slot, f_ssA sequence shift pattern indicating the UE is determined by a cell ID of a serving cell to which the UE belongs and a parameter of a higher layer signaling configuration of the serving cell to which the UE belongs, or by a parameter of a higher layer signaling configuration of the serving cell to which the UE belongs, f_gh(n_s) Indicating the current time slot n in which the reference signal is transmitted_sThe corresponding group jump takes a value of 0 when the group jump is closed and takes a value of 0 when the group jump is enabled

Determining a current time slot n_sAfter the group number of the motif group to which the base sequence belongs, the UE can determine the current slot n_sThe root sequence index q of the base sequence of (1), which may be a function of u, v, and the sequence length, exemplary functions are as follows:

the expression of the ZC sequence of order q is as follows:

the expression for the base sequence is as follows:

and 903, generating a reference signal by the UE according to the base sequence.

In the protocol of LTE, a ZC sequence is used to generate uplink reference signals including DRSs of PUSCH, DRSs of PUCCH, and SRS. The ZC sequence generates orthogonal reference signals by cyclic shift.

wherein,

Obtained after cyclic shift.

904, the UE transmits a reference signal to the base station.

In the embodiment of the invention, the base station sends the configuration information to the user equipment based on the extended basic sequence group so that the user equipment can determine the basic sequence to send the reference signal according to the configuration information, and more basic sequences are distributed in each cell to support MIMO with more streams, thereby supporting different UEs in the cell to adopt different basic sequences, increasing uplink capacity and improving spectrum efficiency.

Fig. 13 is a schematic diagram of a transmission method of a reference signal sequence according to an embodiment of the present invention. The method of fig. 13 is performed by a base station.

1301, the base station sends configuration information to the user equipment, wherein the configuration information is used for indicating th base sequences allocated to the user equipment by the base station.

Wherein, each motif sequence group allocated to the service cell of the user equipment is expanded into a motif sequence group comprising g base sequences, g is not less than ceil (S/Q), Q is the maximum value of the number of MIMO streams which can be supported by base sequences, S is the number of MIMO streams which the service cell of the user equipment needs to support, and>q, the th base sequence to which the th base sequence belongsSet is of the extended motif group of the communication system, and the number of RBs of the uplink bandwidth of the user equipment is greater than or equal to a predetermined threshold L, L is a multiple of 2,3 or 5, L is an integer not less than ceil ((Z)/12), Z is greater than or equal to M₀Minimum prime number of g +1, M₀The number of motif group in the communication system in which the base station is located is indicated.

1302, the base station receives a reference signal generated by the user equipment according to the th base sequence.

In the embodiment of the invention, when the uplink bandwidth of the user equipment is greater than the preset threshold, the base station sends the configuration information to the user equipment based on the extended basic sequence group, so that the user equipment determines the basic sequence used by the user equipment for sending the reference signal according to the configuration information, and more basic sequences are distributed in each cell to support MIMO with more streams, thereby supporting different UEs in the cell to adopt different basic sequences, increasing the uplink capacity and improving the spectrum efficiency.

Optionally, as embodiments, the -th motif column group is a motif column group corresponding to a current time slot in which the ue transmits a reference signal, the configuration information includes an intra-group sequence number, where the intra-group sequence number is used to indicate a sequence number of the -th motif column group in the -th motif column group, and the ue is capable of determining the -th motif column group according to a sequence shift pattern of the ue and a group hop corresponding to the current time slot.

For specific implementation of the embodiment of the present invention, reference may be made to the method performed by the base station in the embodiment shown in fig. 9, and details of the embodiment of the present invention are not repeated herein.

The embodiment of the present invention further provides types of user equipment 1, which are used for executing the method in the embodiment shown in fig. 2 and implementing the functions of the UE in the embodiments shown in fig. 3 and fig. 5.

In particular, the user equipment 1 may implement the respective method by means of functional modules, and the user equipment 1 may comprise means for performing the method of the embodiment shown in fig. 2. The user equipment 1 may comprise, for example, a receiving unit, a determining unit, a generating unit and a transmitting unit, wherein,

a receiving unit, configured to receive configuration information sent by a base station, where the configuration information is used to indicate th motif sequence group allocated by the base station for a user equipment 1, where the configuration information is generated by the base station based on partition manners of the motif sequence group in a communication system in which the base station is located, the partition manners partition the motif sequence group in the communication system into a plurality of base sequence sets, each base sequence set includes at least 1 motif sequence group, at least 1 base sequence set in the plurality of base sequence sets includes at least 2 motif sequence groups, and a th base sequence set to which the th motif sequence group belongs is of the plurality of base sequence sets.

A determining unit, configured to determine the th motif group according to the configuration information.

A generating unit for generating a reference signal according to the th motif group.

A sending unit, configured to send the reference signal to the base station.

The embodiment of the present invention further provides base stations 1, which are used to execute the method in the embodiment shown in fig. 6 and implement the functions of the base stations in the embodiments shown in fig. 3 and fig. 5.

In particular, the base station 1 may implement the respective method by means of functional modules, and the base station 1 may comprise means for performing the method of the embodiment shown in fig. 6. The base station 1 may comprise, for example, a transmitting unit and a receiving unit, wherein,

a sending unit, configured to send configuration information to a user equipment, where the configuration information is used to indicate th motif sequence group allocated by the base station 1 for the user equipment, where the configuration information is generated by the base station 1 based on partition manners of the motif sequence group in the communication system in which the base station 1 is located, the partition manners partition the motif sequence group in the communication system in which the base station 1 is located into multiple base sequence sets, each base sequence set includes at least 1 motif sequence group, at least 1 base sequence set in the multiple base sequence sets includes at least 2 motif sequence groups, and a th base sequence set to which the th motif sequence group belongs is of the multiple base sequence sets.

A receiving unit, configured to receive a reference signal generated by the user equipment according to the th motif group.

The embodiment of the present invention further provides types of network-side devices 1, configured to execute the method in the embodiment shown in fig. 7, and implement the functions of the base station controller in the embodiment shown in fig. 5.

In particular, the network side device 1 may implement the corresponding method through functional modules, and the network side device 1 may include a unit for executing the method of the embodiment shown in fig. 7. The network-side device 1 may comprise, for example, a dividing unit and a transmitting unit, wherein,

the dividing unit is used for dividing the motif sequence group of the communication system into a plurality of base sequence sets according to dividing modes, the number of the motif sequence groups contained in each base sequence set is not less than 1, and at least 1 base sequence set in the plurality of base sequence sets contains at least 2 motif sequence groups.

A sending unit, configured to send the division result of the division manner to a base station governed by the network side device, so that the base station sends configuration information to the user equipment according to the division manner, so that the user equipment sends a reference signal based on the motif group indicated by the configuration information.

The embodiment of the present invention further provides types of user equipment 2, which are used for executing the method in the embodiment shown in fig. 8 and implementing the functions of the UE in the embodiment shown in fig. 9.

In particular, the user equipment 2 may implement the respective method by means of functional modules, and the user equipment 2 may comprise means for performing the method of the embodiment shown in fig. 8. The user equipment 2 may comprise, for example, a receiving unit, a determining unit, a generating unit and a transmitting unit, wherein,

a receiving unit, configured to receive configuration information sent by a base station, where the configuration information is used to indicate the th base sequence allocated by the base station to the user equipment 2.

Wherein each motif sequence group allocated to the serving cell of the user equipment is extended to a motif sequence group comprising g base sequences, g is not less than ceil (S/Q), Q is the maximum value of the number of MIMO streams that can be supported by base sequences, S is the number of MIMO streams that the serving cell of the user equipment 2 needs to support, S is the number of base sequences of the user equipment 2, and>q, the motif group to which the th base sequence belongs is of the motif group expanded by the communication system, the number of resource blocks RB of the uplink bandwidth of the user equipment 2 is greater than or equal to a predetermined threshold value L, L is a multiple of 2,3 or 5, L is an integer not less than ceil ((Z)/12), and Z is not less than M₀Minimum prime number of g +1, M₀The number of motif group in the communication system in which the base station is located is indicated.

A determining unit, configured to determine the th base sequence according to the configuration information.

A generating unit, configured to generate a reference signal according to the th base sequence.

A sending unit, configured to send the reference signal to the base station.

The embodiment of the present invention further provides base stations 2, which are used to execute the method in the embodiment shown in fig. 13 and implement the functions of the base station in the embodiment shown in fig. 8.

In particular, the base station 2 may implement the respective method by means of functional modules, and the base station 2 may comprise means for performing the method of the embodiment shown in fig. 13. The base station 2 may comprise, for example, a transmitting unit and a receiving unit, wherein,

a sending unit, configured to send configuration information to the user equipment, where the configuration information is used to indicate the th base sequence allocated by the base station 2 for the user equipment.

Wherein, each motif sequence group allocated to the service cell of the user equipment is expanded into a motif sequence group comprising g base sequences, g is not less than ceil (S/Q), Q is the maximum value of the number of MIMO streams which can be supported by base sequences, S is the number of MIMO streams which the service cell of the user equipment needs to support>Q, the motif group to which the th base sequence belongs is of the motif group expanded by the communication system, the number of resource blocks RB of the uplink bandwidth of the user equipment is greater than or equal to a predetermined threshold L, L is a multiple of 2,3 or 5, L is an integer not less than ceil ((Z)/12), and Z is not less than M₀Minimum prime number of g +1, M₀The number of the motif group in the communication system in which the base station 2 is located is shown.

A receiving unit 1802, configured to receive a reference signal generated by the user equipment according to the th base sequence.

The embodiment of the present invention also provides kinds of user equipments 3. a schematic block diagram of the entity apparatus of the user equipment 3 can be shown in fig. 14, and includes a processor 1402, a memory 1403, a transmitter 1401 and a receiver 1404.

The receiver 1404, transmitter 1401, processor 1402, and memory 1403 are interconnected by a system of buses 1406, bus 1406 may be an ISA bus, PCI bus, or EISA bus, etc. the buses may be divided into an address bus, data bus, control bus, etc. for ease of illustration, only double-headed arrows are shown in fig. 14, but no buses or types of buses are shown.

A memory 1403 for storing the program. In particular, the program may include program code comprising computer operating instructions. Memory 1403 may include both read-only memory and random access memory, and provides instructions and data to processor 1402. Memory 1403 may include high-speed RAM memory, and may also include non-volatile memory, such as at least 1 disk memory.

The processor 1402 executes the program stored in the memory 1403.

In particular, in the user equipment 3, the processor 1402 may be configured to execute the method of the embodiment shown in fig. 2 and implement the functions of the UE in the embodiments shown in fig. 3 and fig. 5.

The Processor 1402 may be types of integrated circuit chips having signal Processing capabilities, and in the implementation process, the steps of the method may be performed by instructions in the form of hardware integrated logic circuits or software in the Processor 1402, and the Processor 1402 may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable array (FPGA) or other programmable logic device, discrete or transistor logic, or discrete hardware components, and may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present invention.

The embodiment of the present invention further provides base stations 3, a schematic structural diagram of a physical apparatus thereof can be as shown in fig. 14, and physical units included therein are similar to the user equipment 3 and are not described again.

In particular, in the base station 3, the processor 1402 may be configured to execute the method of the embodiment shown in fig. 6, and implement the functions of the base station in the embodiments shown in fig. 3 and fig. 5.

The embodiment of the present invention further provides types of network-side devices 2, a schematic structural diagram of a physical apparatus thereof may be as shown in fig. 14, and physical units included therein are similar to the user equipment 3 and are not described again.

Specifically, in the network-side device 2, the processor 1402 is configured to execute the method of the embodiment shown in fig. 7, and implement the functions of the base station controller in the embodiment shown in fig. 5.

The embodiment of the present invention further provides types of user equipment 4, a schematic structural diagram of a physical device thereof may be as shown in fig. 14, and physical units included therein are similar to the user equipment 3 and are not described again.

In particular, in the user equipment 4, the processor 1402 is configured to execute the method of the embodiment shown in fig. 8 and implement the functions of the UE in the embodiment shown in fig. 9.

The embodiment of the present invention further provides types of base stations 4, a schematic structural diagram of a physical apparatus thereof can be as shown in fig. 14, and physical units included therein are similar to the user equipment 3 and are not described again.

In particular, in the base station 4, the processor 1402 is configured to execute the method of the embodiment shown in fig. 13 and to implement the functions of the base station of the embodiment shown in fig. 8.

An embodiment of the invention also proposes computer-readable media 1, the computer-readable storage media storing or more programs, the or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 3.

An embodiment of the invention also proposes computer-readable media 2, the computer-readable storage media storing or more programs, the or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 6.

An embodiment of the invention also proposes computer-readable media 3, the computer-readable storage media storing or more programs, the or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 7.

An embodiment of the invention also proposes computer-readable media 4, the computer-readable storage media storing or more programs, the or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 8.

An embodiment of the invention also proposes computer-readable media 5, the computer-readable storage media storing or more programs, the or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 13.

It should be understood that the term "and/or" herein, which is only, describes the association relationship of the associated objects, means that there may be three relationships, for example, a and/or B, and may mean that there are three cases of a alone, a and B together, and B alone.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the unit into only logical functions may be implemented in other ways, for example, a plurality of units or components may be combined or integrated into another system, or features may be omitted or not implemented, at point , the shown or discussed coupling or direct coupling or communication connection between each other may be through interfaces, indirect coupling or communication connection between apparatuses or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in places, or may also be distributed on multiple network units.

In addition, functional units in the embodiments of the present application may be integrated into processing units, or each unit may exist alone physically, or two or more units are integrated into units.

Based on the understanding that the technical solution of the present application, in essence or a part contributing to the prior art, or a part of the technical solution, can be embodied in the form of a software product, the computer software product is stored in storage media, and includes several instructions for making computer devices (which may be personal computers, servers, or network devices) execute all or part of the steps of the method according to the embodiments of the present application.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1, A transmission method of reference signal sequence, comprising:

receiving configuration information from a base station, wherein the configuration information is used for indicating th motif sequence group allocated by the base station for user equipment, and the configuration information relates to a division manner of the motif sequence group in a communication system in which the base station is located, the division manner divides the motif sequence group in the communication system into a plurality of base sequence sets, each base sequence set comprises at least 1 motif sequence group, at least 1 base sequence set in the plurality of base sequence sets comprises at least 2 motif sequence groups, and a th base sequence set to which the motif sequence group belongs is of the plurality of base sequence sets;

determining the th motif group from the configuration information;

and generating a reference signal according to the th motif group and sending the reference signal to the base station.

2. The method of claim 1,

the th base sequence set is a base sequence set allocated by the base station to a serving cell to which the user equipment belongs, and the configuration information comprises a set number and an intra-set sequence number, wherein the set number is used for indicating the number of the th base sequence set, and the intra-set sequence number is used for indicating the sequence number of the th base sequence group in the th base sequence set;

determining the th motif group based on the configuration information includes:

and determining the th motif column group according to the set number and the sequence number in the set.

3. The method of claim 1,

the th base sequence set is a base sequence set corresponding to a current time slot for the user equipment to send a reference signal, the configuration information includes a set total number and an intra-set sequence number, the intra-set sequence number is used to indicate a sequence number of the th base sequence group in the th base sequence set, the number of the base sequence groups included in each of the plurality of base sequence sets divided according to the division manner is equal, and the total number of the plurality of base sequence sets is equal to the set total number;

determining the th motif group based on the configuration information includes:

determining an th base sequence set according to the set shift mode of the user equipment, the set hop corresponding to the current time slot of the user equipment for sending the reference signal and the total set number;

determining the motif group according to the th base sequence set and the intra-set sequence numbers.

4. The method of claim 1,

the th base sequence set is a base sequence set corresponding to a current time slot for the user equipment to send a reference signal, the configuration information includes the number of base sequence groups in the set and sequence numbers in the set, the sequence numbers in the set are used for indicating the sequence numbers of the th base sequence group in the th base sequence set, and the number of the base sequence groups included in each of the plurality of base sequence sets divided according to the division manner is equal to the number of the base sequence groups in the set;

determining the th motif group based on the configuration information includes:

determining the th base sequence set according to the set shift mode of the user equipment, the set hop corresponding to the current time slot of the user equipment for sending the reference signal and the number of base sequence groups in the set;

5. The method according to , wherein the configuration information is carried in radio resource control, RRC, signaling and/or downlink control information, DCI.

6, A transmission method of reference signal sequence, comprising:

sending configuration information to a user equipment, wherein the configuration information is used for indicating th motif sequence group allocated by a base station for the user equipment, the configuration information is generated by the base station based on a division manner of the motif sequence group in a communication system in which the base station is located, the division manner divides the motif sequence group in the communication system in which the base station is located into a plurality of base sequence sets, each base sequence set comprises at least 1 motif sequence group, at least 1 base sequence set in the plurality of base sequence sets comprises at least 2 motif sequence groups, and a th base sequence set to which the th motif sequence group belongs is of the plurality of base sequence sets;

a base station receives a reference signal from the user equipment, the reference signal being generated in relation to the th motif group.

7. The method of claim 6, wherein the th base sequence set is a base sequence set allocated by the base station to a serving cell to which the user equipment belongs, and the configuration information comprises a set number and an intra-set sequence number, wherein the set number is used for indicating a number of the th base sequence set, the intra-set sequence number is used for indicating a sequence number of the th base sequence group in the th base sequence set, and the set number and the intra-set sequence number are used for determining the th base sequence group.

8. The method of claim 6, wherein the th base sequence set is a base sequence set corresponding to a current slot of the reference signal when being transmitted, the configuration information comprises a total set number and an intra-set sequence number, the intra-set sequence number is used for indicating a sequence number of the th base sequence group in the th base sequence set, the number of the base sequence sets included in each of the plurality of base sequence sets divided according to the division is equal to the total set number, the total set number and the intra-set sequence number are used for determining the th base sequence group, and the determining is based on the set shift pattern of the user equipment, a set hop corresponding to the current slot of the reference signal when being transmitted, and the total set number.

9. The method of claim 6, wherein the th base sequence set is a base sequence set corresponding to a current time slot of the reference signal when being transmitted, the configuration information comprises an intra-set base sequence group number and an intra-set sequence number, the intra-set sequence number is used for indicating a sequence number of the th base sequence group in the th base sequence set, the number of base sequence groups included in each of the plurality of base sequence sets divided according to the division is equal to the intra-set base sequence group number, and the intra-set base sequence group number and the intra-set sequence number are used for determining the th base sequence group, and the determining is based on a set shift pattern of the user equipment, a set hop corresponding to the current time slot of the reference signal when being transmitted, and the intra-set base sequence group number.

10. The method according to of any of claims 6 to 9, wherein the configuration information is sent by radio resource control, RRC, signaling and/or downlink control information, DCI.

11, A method for transmitting a reference signal sequence, comprising:

determining a dividing mode for dividing a motif sequence group of a communication system into a plurality of base sequence sets, wherein the number of the motif sequence groups contained in each base sequence set is not less than 1, and at least 1 base sequence set in the plurality of base sequence sets contains at least 2 motif sequence groups;

and sending the division result of the division mode to the governed base station so that the base station sends configuration information to the user equipment according to the division mode, and the user equipment sends a reference signal based on the motif group indicated by the configuration information.

A user device of the type 12, , comprising:

a receiving unit, configured to receive configuration information from a base station, where the configuration information is used to indicate th motif sequence group allocated by the base station for the user equipment, where the configuration information relates to a division manner of the motif sequence group in a communication system where the base station is located, the division manner divides the motif sequence group in the communication system into a plurality of base sequence sets, each base sequence set includes at least 1 motif sequence group, at least 1 base sequence set in the plurality of base sequence sets includes at least 2 motif sequence groups, and a th base sequence set to which the th motif sequence group belongs is of the plurality of base sequence sets;

a determining unit, configured to determine the th motif group according to the configuration information;

a generating unit for generating a reference signal according to the th motif group;

a sending unit, configured to send the reference signal to the base station.

13. The user equipment of claim 12,

the determining unit is specifically configured to determine the th motif column group according to the set number and the intra-set sequence number.

14. The user equipment of claim 12,

the determining unit is specifically configured to determine the th base sequence set according to the set shift pattern of the user equipment, the set hop corresponding to the current time slot for the user equipment to send the reference signal, and the total set number, and determine the th base sequence group according to the th base sequence set and the sequence numbers in the set.

15. The user equipment of claim 12,

the determining unit is specifically configured to determine the th base sequence set according to the set shift pattern of the user equipment, a set hop corresponding to a current time slot at which the user equipment transmits a reference signal, and the number of base sequence groups in the set, and determine the th base sequence group according to the th base sequence set and sequence numbers in the set.

16. The user equipment according to , wherein the configuration information is sent by radio resource control, RRC, signaling and/or downlink control information, DCI.

A base station of the type 17, , comprising:

a sending unit, configured to send configuration information to a user equipment, where the configuration information is used to indicate th motif sequence group allocated by the base station for the user equipment, where the configuration information is generated by the base station based on a partition manner of the motif sequence group in a communication system in which the base station is located, the partition manner partitions the motif sequence group in the communication system in which the base station is located into a plurality of base sequence sets, each base sequence set includes at least 1 motif sequence group, at least 1 base sequence set includes at least 2 motif sequence groups, and a th base sequence set to which the th motif sequence group belongs is of the plurality of base sequence sets;

a receiving unit, configured to receive a reference signal from the user equipment, where the reference signal is generated in association with the th motif group.

18. The base station of claim 17, wherein the th base sequence set is a base sequence set allocated by the base station to a serving cell to which the user equipment belongs, and the configuration information comprises a set number and an intra-set sequence number, wherein the set number is used to indicate a number of the th base sequence set, the intra-set sequence number is used to indicate a sequence number of the th base sequence group in the th base sequence set, and the set number and the intra-set sequence number are used for determination of the th base sequence group.

19. The base station of claim 17, wherein the th base sequence set is a base sequence set corresponding to a current time slot of the reference signal when transmitted, the configuration information comprises a total number of sets and an intra-set sequence number, the intra-set sequence number is used to indicate a sequence number of the th base sequence group in the th base sequence set, the number of the base sequence groups included in each of the plurality of base sequence sets divided according to the division is equal to the total number of sets, the total number of the plurality of base sequence sets is equal to the total number of sets, and the total number of sets and the intra-set sequence number are used to determine the th base sequence group, the determining is based on the set shift pattern of the user equipment, the set hop corresponding to the current time slot of the reference signal when transmitted, and the total number of sets.

20. The base station of claim 17, wherein the th base sequence set is a base sequence set corresponding to a current time slot of the reference signal when transmitted, the configuration information comprises an intra-set base sequence group number and an intra-set sequence number, the intra-set sequence number is used to indicate a sequence number of the th base sequence group in the th base sequence set, the number of base sequence groups included in each of the plurality of base sequence sets divided according to the division is equal to the intra-set base sequence group number, and the intra-set base sequence group number and the intra-set sequence number are used to determine the th base sequence group, and the determination is based on a set shift pattern of the user equipment, a set hop corresponding to the current time slot of the reference signal when transmitted, and the intra-set base sequence group number.

21. The base station according to , wherein the configuration information is transmitted by radio resource control, RRC, signaling and/or downlink control information, DCI.

22, kinds of network side equipment, characterized by comprising:

the base sequence set dividing unit is used for dividing the base sequence set of the communication system into a plurality of base sequence sets, the number of the base sequence sets contained in each base sequence set is not less than 1, and at least 1 base sequence set in the base sequence sets contains at least 2 base sequence sets;

a sending unit, configured to send the division result of the division manner to a base station governed by the network side device, so that the base station sends configuration information to a user equipment according to the division manner, so that the user equipment sends a reference signal based on a motif group indicated by the configuration information.

Apparatus, e.g. , comprising a memory for storing instructions and a processor for executing the instructions stored by the memory, wherein execution of the instructions stored by the memory causes the processor to perform the method of any of claims 1 to 11, e.g. .

24. The apparatus of claim 23, wherein the apparatus is a base station, a user equipment, or a network side device.

25, computer readable media, wherein the computer readable storage media stores one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, cause the portable electronic device to perform the method of any of claims 1-11.