CN107872304A - A kind of transmission method of uplink control signal, network side equipment and terminal device - Google Patents
A kind of transmission method of uplink control signal, network side equipment and terminal device Download PDFInfo
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Abstract
A kind of transmission method of uplink control signal, network side equipment and terminal device, this method include：Uplink control signal is encoded and modulated by terminal device, obtains up modulation data；Terminal device carries out spread processing using two orthogonal sequences to up modulation data, obtains spread spectrum data；Wherein, two orthogonal sequences are the orthogonal sequence obtained based on identical basic sequence progress cyclic shift；Terminal device by spread spectrum data be mapped to uplink transmission resource first time slot and second time slot respectively corresponding to the subcarrier on PRB and the SC FDMA symbols for data transfer；Terminal device first time slot and second time slot respectively corresponding to place pilot frequency sequence on SC FDMA symbols for pilot transmission on PRB；Terminal device sends upstream data, and upstream data includes the SC FDMA symbols for the SC FDMA symbols of data transfer and for pilot transmission.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a transmission method of an uplink control signal, a network side device, and a terminal device.
Background
In a Long Term Evolution (LTE) system, an uplink physical channel includes: a Physical Uplink Shared Channel (PUSCH) and a Physical Uplink Control Channel (PUCCH).
The PUCCH is used to carry control signaling, and different control signaling may be transmitted using different PUCCH transmission formats. For example, the user equipment may feed back a Channel Quality Indicator (CQI) through a PUCCH Format (Format) 2. If the base station requires the user equipment to simultaneously feed back CQI and Acknowledgement (ACK)/Negative Acknowledgement (NACK), the user equipment may feed back CQI and ACK/NACK through PUCCH Format2a (ACK/NACK for 1 bit) or PUCCH Format2b (ACK/NACK for 2 bits).
In the LTE system, the resource allocation of the PUCCH channel is based on 2 Physical Resource Blocks (PRBs) as a granularity. Each PRB occupies 12 consecutive subcarriers in the frequency domain and one slot in time. The 12 subcarriers of the two PRBs are completely different. For example, 12 sub-carriers of the first PRB are low-band sub-carriers, and 12 sub-carriers of the second PRB are high-band sub-carriers, which is called frequency hopping. These two PRBs are also referred to as one PUCCH region. Each slot contains 7 Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols in the time domain, where 2 SC-FDMA symbols are used for pilot transmission and the remaining 5 SC-FDMA symbols are used for data transmission (the data herein includes control data and traffic data), such as transmission CQI.
In existing LTE systems, PUCCH signals from different users may be scheduled into the same PUCCH domain. In the same PUCCH domain, different users are distinguished by orthogonal code division multiplexing sequences. In one PUCCH domain, code division multiplexing of 12 users is allowed at maximum. Therefore, the resource utilization is low.
Disclosure of Invention
The embodiment of the invention provides a transmission method of an uplink control signal, network side equipment and terminal equipment, which are used for solving the technical problem of low resource utilization rate in the prior art.
In a first aspect, an embodiment of the present invention provides a method for transmitting an uplink control signal, including:
the terminal equipment encodes and modulates the uplink control signal to obtain uplink modulation data; the terminal equipment uses two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data to obtain spread spectrum data; the two orthogonal sequences are obtained by performing cyclic shift based on the same base sequence; the terminal equipment maps the spread spectrum data to subcarriers on a physical resource block PRB corresponding to a first time slot and a second time slot of an uplink transmission resource and a single carrier frequency division multiple access (SC-FDMA) symbol for data transmission; the terminal equipment places pilot sequences on SC-FDMA symbols for pilot transmission on PRBs corresponding to the first time slot and the second time slot respectively; the terminal device sends uplink data, and the uplink data comprises the SC-FDMA symbol for data transmission and the SC-FDMA symbol for pilot transmission.
In the scheme of the embodiment of the invention, two orthogonal sequences are used for carrying out spread spectrum processing on uplink modulation data, so that the multiplexing number of users can be increased compared with the situation that only one orthogonal sequence is used for carrying out spread spectrum processing, for example, the number of multiplexing users in the prior art is increased from 12 to 18, and the utilization rate of uplink transmission resources is increased.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the method further includes:
and the terminal equipment receives first indication information, wherein the first indication information is used for indicating that the terminal equipment needs to use two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data. The method can realize the purpose of dynamically allocating the uplink transmission resources, is relatively flexible and is convenient to use.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the method further includes: and the terminal equipment receives second indication information, wherein the second indication information is used for indicating that the subcarriers contained in the PRB corresponding to the first time slot are completely the same as the subcarriers contained in the PRB corresponding to the second time slot. According to the method, on one hand, a non-frequency hopping structure is adopted, so that the number of pilot sequences is increased, on the other hand, dynamic indication is carried out through indication information, the purpose of dynamic configuration is achieved, and the method is flexible and convenient to use.
With reference to the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the method further includes: the terminal equipment receives third indication information, wherein the third indication information is used for indicating: the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first time slot is opposite to the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second time slot. By the method, on one hand, the number of the pilot sequences can be increased, and on the other hand, dynamic indication is carried out through the indication information, so that the purpose of dynamic configuration is achieved, and the method is flexible and convenient to use.
With reference to the first aspect or any one of the first possible implementation manner to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, before the terminal device maps the spread spectrum data to physical resource blocks PRB corresponding to a first slot and a second slot of an uplink transmission resource, the method further includes: the terminal equipment receives the resource indexThe terminal device determines the PRBs corresponding to the first time slot and the second time slot according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to the first time slot and the second time slot;numbering an antenna or a user; when a is 0, the sub-carriers contained in the PRB corresponding to the first time slot and the sub-carriers contained in the PRB corresponding to the second time slot are completely representedAnd when a is 1, the sub-carriers included in the PRB corresponding to the first time slot and the sub-carriers included in the PRB corresponding to the second time slot are completely different. By the method, two structures of frequency hopping and non-frequency hopping can be compatible, so that both the new terminal equipment and the existing terminal equipment can work normally.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, before the terminal device uses two orthogonal sequences to perform spreading processing on the uplink modulation data, the method further includes: the terminal equipment receives the resource indexThe terminal equipment indexes according to the resourcesDetermining a first orthogonal sequenceThe terminal equipment indexes according to the resourcesDetermining a second orthogonal sequenceWherein;for the antenna number or the user number,
with reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the performing, by the terminal device, spread spectrum processing on the uplink modulation data by using two orthogonal sequences includes: the terminal equipment performs spread spectrum processing on the uplink modulation data according to the following formula:
wherein, b is 1, and b is a linear alkyl group,for the purpose of the spread-spectrum data,the length of a physical uplink control channel PUCCH sequence; d (n) is the uplink modulation data, and n is 0, 1. The method can be compatible with a new spread spectrum processing mode and an existing spread spectrum processing mode, so that both the new terminal equipment and the existing terminal equipment can work normally.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, before the terminal device places a pilot sequence on an SC-FDMA symbol for pilot transmission on a PRB corresponding to each of the first slot and the second slot, the method further includes: the terminal equipment indexes according to the resourcesDetermining a first orthogonal sequenceThe terminal device determines the pilot sequence by the following formula:
wherein,for the purpose of the said pilot sequence(s), the number of SC-FDMA symbols used for pilot transmission in one slot,m 'is a slot number, m' is 0,1,is equal to Is [1,1]]Or [1, -1]When the ACK or NACK information is carried on the SC-FDMA symbol for pilot transmission, z (e) is the ACK or NACK information, and if the ACK or NACK information is not carried, z (e) is 1.
In a second aspect, an embodiment of the present invention further provides a method for transmitting an uplink control signal, including:
the method comprises the steps that network side equipment determines two Physical Resource Blocks (PRBs) of uplink transmission resources for sending uplink data by terminal equipment; the time slots in which the two PRBs are located are different; the network side equipment receives the uplink data and the pilot frequency sequence on the two PRBs; the uplink data is spread spectrum data spread by two orthogonal sequences; pilot frequency sequences of different terminal devices are mutually orthogonal; and the network side equipment demodulates the uplink data sent by the terminal equipment according to the pilot frequency sequence sent by the terminal equipment.
With reference to the second aspect, in a first possible implementation manner of the second aspect, before the network side device receives the uplink data and the pilot sequence on the two PRBs, the method further includes: the network side device sends first indication information to the terminal device, wherein the first indication information is used for indicating that the terminal device needs to use two orthogonal sequences to perform spread spectrum processing on the uplink modulation data.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the method further includes: and the network side equipment sends second indication information to the terminal equipment, wherein the second indication information is used for indicating that the subcarriers contained in the two PRBs are completely the same.
With reference to the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the method further includes: and the network side equipment sends third indication information to the terminal equipment, wherein the third indication information is used for indicating that the pilot sequences of the terminal equipment on the first pilot symbols on different time slots where the two PRBs are located are opposite.
With reference to the second aspect or any one of the first possible implementation manner of the second aspect to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the method further includes: the network side equipment sends the resource indexAnd resource indexingTo the terminal device, wherein the resource indexFor determining the positions of the two PRBs, one of the two orthogonal sequences and the pilot sequence, the resource indexFor determining the other of the two orthogonal sequences;an antenna number or a user number.
With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the determining, by the network side device, the two PRBs includes: the network side device determines the two PRBs according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to different time slots contained in the two PRBs; when a is 0, the subcarriers contained in the two PRBs are completely the same, and when a is 1, the subcarriers contained in the two PRBs are completely different.
In some possible implementations of the foregoing, the PRBs corresponding to the first time slot include subcarriers that are identical to the subcarriers included in the PRBs corresponding to the second time slot.
In some possible implementations of the foregoing, the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first slot is the opposite of the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second slot.
In a third aspect, an embodiment of the present invention provides a terminal device, which may execute the method described in the first aspect and various possible implementation manners of the first aspect.
As an example, a terminal device includes a processor, a transmitter, and a receiver. Wherein the processor may be configured to perform the processing acts of acquiring, modulating, encoding, determining, mapping, etc. The receiver may be operable to perform a receiving action. The transmitter is used to perform the transmit action.
In a fourth aspect, an embodiment of the present invention provides a network-side device, which may execute the method described in the second aspect and various possible implementation manners of the second aspect.
As an example, a network-side device includes a processor, a transmitter, and a receiver. Wherein the processor may be configured to perform the processing acts of acquiring, determining, demodulating, etc. The receiver may be operable to perform a receiving action. The transmitter is used to perform the transmit action.
In some possible implementations of the foregoing, the subcarriers included in the two PRBs are identical.
In some possible implementations of the foregoing, the pilot sequences of the terminal device on the first pilot symbols on different slots where the two PRBs are located are opposite.
In a fifth aspect, an embodiment of the present invention provides a device for transmitting an uplink control signal, where the device includes a functional module configured to implement the method in the first aspect.
In a sixth aspect, an embodiment of the present invention further provides a device for transmitting an uplink control signal, where the device includes a functional module for implementing the method in the second aspect.
In a seventh aspect, an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores program code, where the program code includes instructions for implementing any possible implementation manner of the methods of the first and second aspects.
Drawings
Fig. 1 shows an uplink timeslot T according to an embodiment of the present inventionslotA schematic of the resource of (a);
fig. 2 is a schematic diagram of a frequency hopping structure with two PRBs according to an embodiment of the present invention;
fig. 3 is a block diagram of a communication system according to an embodiment of the present invention;
FIG. 4 is a block diagram of an apparatus provided in accordance with an embodiment of the present invention;
fig. 5 is a flowchart of a method for transmitting an uplink control signal according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a non-frequency hopping structure with two PRBs according to an embodiment of the present invention;
fig. 7 is a functional block diagram of an apparatus for transmitting an uplink control signal according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a transmission method of an uplink control signal, network side equipment and terminal equipment, which are used for solving the technical problem of low resource utilization rate in the prior art.
In order to more clearly understand the technical solution of the embodiment of the present invention, the embodiment of the present invention takes the transmission mode of the transmission control signaling of the PUCCH Format2/2a/2b in the LTE system as an example for explanation.
The LTE system adopts an Orthogonal Frequency Division Multiplexing (OFDM) technology to subdivide Frequency and time resources into: "subcarriers" and "SC-FDMA symbols". Taking the 20MHz of LTE as an example, the available bandwidth of 18MHz on the frequency is divided into 100 PRBs, which are represented asEach PRB contains 12 consecutive subcarriers, denoted asThe frequency separation between each subcarrier is 15KHz and is divided in time into 2 slots (slots, denoted T) every 1msslot0.5 ms). Each slot contains 7 SC-FDMA symbols, denoted as I.e. one PRB. As shown in fig. 1, is an uplink time slot TslotIn the Resource diagram of (1), one subcarrier k and one symbol t correspond to one Resource Element (RE).
In an LTE system, the specific resource allocation of the PUCCH is based on 2 PRBs as granularity, in the frequency domain, the frequency resources of two PRBs are located at the two extreme sides of the useful bandwidth, and the whole middle spectrum resource is used to transmit uplink data, so that the spectrum resource can be effectively utilized and the single carrier characteristic of uplink transmission can be maintained. In a subframe (1ms), the uplink control signal is mapped to one PRB on the edge of the system band in slot 0, and the uplink control signal is mapped to the corresponding PRB on the other edge of the system band in slot 1. As shown in fig. 2, 2 PRBs with p ═ 0 constitute 1 PUCCH domain (also referred to as PUCCH resource). Similarly, 2 PRBs with p ═ 1 constitute 1 PUCCH domain; 2 PRBs with p being 2 form 1 PUCCH domain; 2 PRBs with p-3 constitute 1 PUCCH domain. Where p may be referred to as a resource number of the PUCCH.
Generally, a network side device, such as a base station (e.g., eNB or eNodeB), will instruct a user on which subframes and on which PRBs of a subframe, uplink control signals, such as CQI, ACK/NACK, are transmitted. In an LTE system, a base station sends PUCCH resource indexes of Format2/2a/2bWhen the timing of transmitting the uplink control signal comes, the user calculates the PRB used by the user according to the formula (1) and the formula (2).
Wherein n issIs a time slot number, and is a time slot number,indicating a rounding down.
For example, the calculation result of the formula (1) and the formula (2) indicates that the PRB used by the user is PRB0 in slot 0, and the PRB used by the user is PRB99 in slot 1. Thus, two PRBs are frequency hopping designs.
In one slot, 7 symbols comprise 2 pilot symbols and 5 data symbols, and the two slots comprise 14 symbols, 4 pilot symbols and 10 data symbols, and each symbol comprises 12 subcarriers, as described above.
After determining the PUCCH resource for transmitting the uplink control signal, the user needs to map the uplink control signal to the determined PRB. Specifically, according to the coding design of the LTE system for CQI, the uplink control signal of each user, for example, CQI is between 4-11bits, 20bits of coded data are obtained through channel coding, and are modulated into 10 modulated data through Quadrature Phase Shift Keying (QPSK), and the PUCCH Format2 is used to send the 10 modulated data d (0),.., d (9) on 10 data symbols. The pilot symbols are usually used to transmit pilot signals, such as Demodulation Reference signals (DMRS).
In the LTE system, orthogonal code division multiplexing sequences are used on the PUCCH Format2 to distinguish different users. Specifically, a base sequence of length 12, such as a Zadoff-Chu sequence, is first selected. The base sequence is then cyclically shifted to obtain 12 orthogonal cyclically shifted sequences, also called code channels, with 1 code channel for each user. Then, the 10 modulated data d (0), d (9) are modulated into 120 spread data, i.e., each modulated data is spread by a sequence of length 12. The formula (3) refers to the formula of the spread spectrum modulation.
Wherein d (n) is the modulated data, for a base sequence of length 12, different α (0 ≦ α < 12) will yield orthogonal sequences An antenna number or a user number, wherein,for the number of sub-carriers included in one pilot symbol,is the length of the PUCCH sequence,
α is determined by the following formula (4).
Wherein,and if n issmod2 is 0, thenIf n issmod2 is 1, then
Wherein,indicating the cyclic shift of a cell level, the specific value is related to the time slot and the symbol in the time slot, l indicates the symbol index in the time slot,indicating the number of codewords for the hybrid Format1 and Format2, may be a fixed high-level parameter, where Format1 is used for feeding back ACK or NACK.Indicating the number of PRBs fed back by Format2/2a/2 b.
As can be seen from the above equation (4), the generation of orthogonal sequences and the resource indexAnd (4) correlating. This part of the disclosure is well known to those skilled in the art (refer to chapter 5 of 3GPP protocol TS 36.211), and therefore will not be described in detail here.
Next, the UE maps its own 10 spread data obtained by equation (3) to REs of PRB0 and PRB 99. If there are 12 users multiplexing the same PUCCH resource at the same time, the two PRBs will carry 120 spread data.
If the CQI and the ACK/NACK need to be fed back simultaneously, the second pilot symbol in each slot of the PUCCH resource is used to carry ACK/NACK data, which may be referred to as data d (10). However, in one PUCCH resource, only one pilot symbol per slot can be used to carry a pilot signal, and since the two slots are frequency hopping design and the channel characteristics are different, 12 orthogonal pilots in each slot are used for channel estimation, so the number of orthogonal pilots on one PUCCH resource is at most 12.
Since code division multiplexing of 12 users can be allowed at most on one PUCCH resource, in the existing LTE system, 12 users are supported at most on one PUCCH resource for uplink control signal transmission. Therefore, the resource utilization is low.
Hereinafter, the embodiment of the present invention will be described in detail.
The method for transmitting the uplink control signal provided by the embodiment of the invention can be applied to a communication network system. Fig. 3 is a block diagram of a possible communication network system according to an embodiment of the present invention. As shown in fig. 3, the communication network system includes a network-side device and a plurality of terminal devices. The network side device is a service network side device of the terminal device, and the service side network device refers to the network side device which provides services such as RRC connection, non-access stratum (NAS) mobility management and security input for the terminal device through a wireless air interface protocol. The network side device and the terminal device can communicate through an air interface protocol.
It should be understood that the communication system shown in fig. 3 shows only the case of four terminal devices (isolated terminals) and one network-side device, but the present invention is not limited thereto. The coverage area of the network side device may also include other numbers of terminal devices. Further optionally, the communication system in which the network-side device and the terminal device are located in fig. 3 may further include other network entities such as a network controller and/or a mobility management entity, which is not limited in the embodiment of the present invention.
The network-side device mentioned herein may be a Base Station (BTS) in Global System for mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB) in Long Term Evolution (Long Term Evolution), or an eNB or eNodeB, or a relay Station or Access point, or a Base Station in a future 5G network, and the like, and is not limited herein.
A terminal device, as referred to herein, may be a wireless terminal device or a wired terminal device, and a wireless terminal device may refer to a device that provides voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminal devices, which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, for example, portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN). For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDA), and the like. The wireless Terminal Device may also be referred to as a system, a Subscriber unit (Subscriber unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment).
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Some english in this document is referred to as descriptions of the embodiments of the present invention by taking the LTE system as an example, which may change with the evolution of the network, and the specific evolution may refer to descriptions in the corresponding standards.
Referring next to fig. 4, fig. 4 is a block diagram of a communication device according to an embodiment of the present invention. The communication device is, for example, the network side device and the terminal device. As shown in fig. 4, the communication apparatus includes: a processor 10, a transmitter 20, a receiver 30, a memory 40 and an antenna 50. The memory 40, the transmitter 20 and the receiver 30, and the processor 10 may be connected by a bus. Of course, in practical applications, the memory 40, the transmitter 20, the receiver 30 and the processor 10 may be not in a bus structure, but may be in other structures, such as a star structure, and the present application is not limited in particular.
Optionally, the processor 10 may be a general-purpose central processing unit or an Application Specific Integrated Circuit (ASIC), may be one or more Integrated circuits for controlling program execution, may be a hardware Circuit developed by using a Field Programmable Gate Array (FPGA), and may be a baseband processor.
Optionally, the processor 10 may include at least one processing core.
Optionally, the Memory 40 may include one or more of a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. Memory 40 is used to store data and/or instructions required by processor 10 during operation. The number of the memory 40 may be one or more.
Alternatively, the transmitter 20 and the receiver 30 may be physically independent of each other or may be integrated together. The transmitter 20 may transmit data via the antenna 50. Receiver 30 may receive data via antenna 50.
Referring to fig. 5, a flowchart of a method for transmitting an uplink control signal according to an embodiment of the present invention is shown. As shown in fig. 5, the method includes:
step 101: the terminal equipment encodes and modulates the uplink control signal to obtain uplink modulation data;
step 102: the terminal equipment uses two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data to obtain spread spectrum data; the two orthogonal sequences are obtained by performing cyclic shift based on the same base sequence;
step 103: the terminal equipment maps the spread spectrum data to subcarriers on a physical resource block PRB corresponding to a first time slot and a second time slot of uplink transmission resources and a single carrier frequency division multiple access SC-FDMA symbol for data transmission;
step 104: the terminal equipment places a pilot frequency sequence on SC-FDMA symbols for pilot frequency transmission on PRBs corresponding to a first time slot and a second time slot respectively;
step 105: and the terminal equipment sends uplink data, wherein the uplink data comprises the SC-FDMA symbol for data transmission and the SC-FDMA symbol for pilot transmission.
In step 101, the uplink control signal to be transmitted acquired by the terminal device is, for example, a CQI, and the CQI is transmitted through the PUCCH format 2. The uplink control signal to be transmitted is, for example, CQI and 1-bit ACK/NACK, and the CQI and the ACK/NACK are transmitted through PUCCH format2 a. The uplink control signal to be transmitted may also be CQI and ACK/NACK of 2bits, and the CQI and the ACK/NACK are transmitted through PUCCH format2 b.
Optionally, the encoding of the uplink control signal may be channel encoding, and generally speaking, the CQI is between 4 and 11bits, and 20bits of encoded data is obtained through channel encoding.
Optionally, the modulation in step 101 may be QPSK modulation, so that after the coded data of 20bits is QPSK modulated, 10 modulated data d (n) are obtained, where n is 0, 1. Of course, the present part of the content is exemplified by the existing LTE system, in practical application, the uplink control signal may be an uplink control signal that appears along with system evolution, and the coding method and the modulation method may also be a new coding method or a new modulation method that appears along with system evolution, so the amount of the obtained modulation data may also be other values, that is, n may also be an integer greater than or equal to 10.
Next, the terminal device executes step 102, that is, performs spreading processing on the uplink modulation data by using two orthogonal sequences to obtain spread data; wherein the two orthogonal sequences are orthogonal sequences obtained by performing cyclic shift based on the same base sequence. Optionally, the two orthogonal sequences are orthogonal sequences obtained by performing cyclic shift according to the same cyclic shift rule based on the same base sequence.
It should be noted that the step 102 executed by the terminal device may be agreed by a protocol, or the step 102 may be executed according to an instruction. In the latter case, the terminal device further receives first indication information, where the first indication information is used to indicate that the terminal device needs to perform spreading processing on the uplink modulation data by using two orthogonal sequences. Step 102 is performed only when the first indication information is received. If the terminal device does not receive the first indication information, or receives a signal indicating that the terminal device uses only one orthogonal sequence to perform spreading processing on the modulated data, the terminal device may perform spreading according to the method described above in the prior art that uses only one orthogonal sequence, for example, the spreading processing is performed according to the foregoing formula (3).
In addition, for the case of the protocol convention, the method is applicable to the case that all terminal devices in the communication system support the spreading by using two orthogonal sequences. And the situation needs to be indicated to be compatible with the existing terminal equipment which cannot support the spreading by using two orthogonal sequences.
Optionally, the terminal device receives first indication information sent by a network side device, for example, a serving base station.
The two orthogonal sequences may be preset orthogonal sequences or calculated by the terminal device according to a predetermined rule, and in any way, the two orthogonal sequences are obtained by performing cyclic shift based on the same base sequence. How the terminal device calculates the two orthogonal sequences according to a predetermined rule will be described in detail below.
Optionally, before step 102, the terminal device further receives the resource indexAnd resource indexingTerminal equipment indexes according to resourcesDetermining a first orthogonal sequenceTerminal equipment indexes according to resourcesDetermining a second orthogonal sequenceWherein a first orthogonal sequence is determinedIn the same manner as the second orthogonal sequence;for the antenna number or the user number,
optionally, the terminal device is a device on the receiving network side, for example, a resource index sent by the serving base stationAnd resource indexing
Note that the resource indexAnd resource indexingDo not differ by more than 12, e.g. resource indexAnd resource indexingAny two different values within 0-11. As another example, resource indexingAnd resource indexingAny two different values within 12-23. Of course, the explanation is given by taking an example in which each PRB includes 12 subcarriers, and so onThe communication technology is developed, and when the number of subcarriers contained in each PRB changes in the future, the resource indexAnd resource indexingThe numerical relationship therebetween may also vary. E.g., 24 subcarriers, resource indexAnd resource indexingWith a difference of not more than 24. Thus, resource indexingAnd resource indexingWhich do not differ by more than the number of subcarriers contained in each PRB.
Indexing with resourcesAnd resource indexingFor example, the difference between the two resource indexes is not more than 12, and for each user, any two resource index values from 0 to 11 are used, that is, each user uses two code channels, so that theoretically, the user can distinguish between the two resource index valuesOne user, so theoretically the spreading method in this embodiment supports multiplexing of 66 users. Compared with the prior art which can only support multiplexing of 12 users, the multiplexing user number is greatly improved.
Alternatively to this, the first and second parts may, for a base sequence of length 12, α is determined by the following equation (5).
Where j is 0, it corresponds to determining the first orthogonal sequence, and where j is 1, it corresponds to determining the second orthogonal sequence.
Wherein,and if n issmod2 is 0, thenIf n issmod2 is 1, then
As can be seen from the above description, the manner of determining the first orthogonal sequence is the same as the manner of determining the second orthogonal sequence, except that the resource index is different. Moreover, the above determination method is well known to those skilled in the art, except that in the present embodiment, there are two different resource indexes, and two orthogonal sequences are obtained by calculation, whereas in the prior art, there is only one resource index, so only one orthogonal sequence is obtained.
Of course, in practical applications, the first orthogonal sequence and the second orthogonal sequence may be determined by different methods, and the present invention is not limited in particular.
After the first orthogonal sequence and the second orthogonal sequence are determined, step 102 is executed next, that is, the terminal device performs spreading processing on the uplink modulation data by using the two orthogonal sequences.
Optionally, the terminal device performs spread spectrum processing on the uplink modulation data according to formula (6).
Wherein b is 1, and b is the first indication information.For the purpose of the spread-spectrum data,the length of a physical uplink control channel PUCCH sequence; d (n) is the uplink modulation data, and n is 0, 1.
In the formula (6), the first orthogonal sequence is usedAnd a second orthogonal sequenceTo perform spread spectrum processing.
In practical applications, the terminal device may further receive another indication information, for example, an indication information that b is 0, in which case, the terminal device performs the spreading process in the same manner as the prior art, please refer to equation (3). In other words, the spreading processing method of formula (6) may be compatible with the spreading processing in the prior art and the spreading processing method in the embodiment of the present invention. Of course, if the protocol agreement terminal device directly executes step 102 without being compatible with the spreading processing method in the prior art, that is, without requiring the indication information, then the coefficient b in formula (6) may be directly removed.
Next, the terminal device executes step 103, that is, the terminal device maps the spread spectrum data to PRBs corresponding to the first time slot and the second time slot of the uplink transmission resource. The PRBs corresponding to the first time slot and the second time slot may be agreed by a protocol, or may be determined by a preset rule. In either case, the subcarriers included in the PRB corresponding to the first slot and the subcarriers included in the PRB corresponding to the second slot are completely the same, i.e., a non-hopping structure, in other words, the 12 subcarriers included in the PRB corresponding to the first slot and the 12 subcarriers included in the PRB corresponding to the second slot are completely the same. This case applies to PUCCH format2/2a/2 b. Referring to fig. 6, for example, PRBs with resource number p equal to 1 corresponding to two slots are the same PRB.
In another case, the subcarriers included in the PRB corresponding to the first slot and the subcarriers included in the PRB corresponding to the second slot are completely different, that is, the frequency hopping structure, and this case is applicable to the PUCCH format 2. Since in PUCCH format2, both pilot symbols in each slot can be used to transmit pilot sequences, even if a frequency hopping structure is adopted, 24 pilot sequences can be transmitted per slot, which can be used by 24 users. In PUCCH format2a/2b, the second pilot symbol of each slot is occupied and cannot be used to transmit pilot sequences, so a non-frequency hopping structure is required, so that the two pilot symbols of two slots transmit 24 pilots in total, which can be used by 24 users.
Since multiplexing of 66 users can be supported by the spreading method described above, and the number of pilot sequences can also be referred to as 24, the maximum number of supported users can be increased to 24 for one uplink transmission resource.
Optionally, the terminal device further receives second indication information, where the second indication information is used to indicate that the subcarriers included in the PRB corresponding to the first time slot are the same as or different from the subcarriers included in the PRB corresponding to the second time slot.
Next, a method of determining PRBs corresponding to two slots will be described.
Specifically, the terminal device receives the resource indexThis step may be the same step as the aforementioned step of receiving the resource index when determining the two orthogonal sequences. And then the terminal equipment determines the PRB corresponding to the two time slots according to the formula (7).
Wherein,a is 0, which is the second indication information, and is used to indicate that the sub-carriers included in the PRB corresponding to the first timeslot are the same as the sub-carriers included in the PRB corresponding to the second timeslot. As can be seen from equation (7), when a is 0, the position of the PRB is independent of the time slot, and the PRBs in the two time slots are the same, so the PRBs in the two time slots include the same subcarriers, for example, subcarriers 0 to 11. When a is 1, the formula (7) is the same as the formula (2), the positions of the PRBs are related to the time slots, and the PRBs in different time slots are different, for example, when the time slot is 0, the PRB is PRB0, and when the time slot is 1, the PRB is PRB 99.
In practical applications, if the frequency hopping structure in the prior art is not required to be compatible, it may be directly agreed that a is 0 by the protocol, or it may be directly agreed to use a formula after a is 0.
And then, the terminal equipment maps the spread spectrum data to subcarriers on PRBs corresponding to the first time slot and the second time slot of the uplink transmission resource and SC-FDMA symbols used for data transmission. This part of the disclosure is well known to those skilled in the art and will not be described further herein.
Next, in step 104, the terminal device places a pilot sequence on SC-FDMA symbols for pilot transmission on PRBs corresponding to the first slot and the second slot, respectively. It should be noted that the execution order of step 104 and step 103 does not limit the order of sequence. The placement of the pilot sequence is well known to those skilled in the art and therefore will not be described in detail herein, and a method of determining the pilot sequence will be described below.
Specifically, the terminal device indexes according to the resourceDetermining a first orthogonal sequenceThe terminal device determines the pilot sequence according to equation (10).
Wherein,for the purpose of the said pilot sequence(s), the number of SC-FDMA symbols used for pilot transmission in one slot,m 'is a slot number, m' is 0,1,is equal to Is [1,1]]Or [1, -1]When the ACK or NACK information carried on the SC-FDMA symbol for pilot frequency transmission is carried, z (e) is the ACK or NACK information, and if the ACK or NACK information is not carried, z (e) is1。
Specifically, there are 4 pilot symbols in one uplink transmission resource, and there are 4 × 12 — 48 subcarriers in total, and formula (10) indicates a pilot sequence corresponding to 48 subcarriers. Where i is 0-11 for traversing 12 subcarriers over one symbol. m' is 0 and 1 for traversing two slots. e is 0 and 1 for traversing 2 pilot symbols in each slot.
In detail, the pilot sequence length is 12 on each pilot symbol, the first orthogonal sequenceOnly 12, which can be designated as P1, P2, P3, …, P12, wherein each sequence Pi is 12 in length.
The pilot sequence length is limited to 12 from a single pilot symbol point of view, so there can only be 12 orthogonal pilot sequences. In the embodiment of the present application, a non-frequency hopping manner is adopted, and the first pilot symbols in two time slots are regarded as a whole to form a sequence with a length of 24, so that there may be 24 orthogonal pilot sequences.
In the specific implementation process, how to create 24 orthogonal pilot frequency sequences has a plurality of methods, and the method using [1,1]/[1, -1] is a simple method with little standard change.
Specifically, the sequence P1 and the sequence P2 are orthogonal and can be expressed as: p1 × P2' ═ 0.
The first 12 users, the sequence on the first pilot symbol of the first slot and the sequence on the second pilot symbol of the second slot are sequentially: [ P1P1], [ P2P2], [ P3P3], … …, [ P12P12 ].
The following users, in sequence on the first pilot symbol of the first slot and the second pilot symbol of the second slot: [ P1-P1], [ P2-P2], [ P3-P3], … … [ P12-P12 ].
Then the pilot sequences for user 1 and user 2 are orthogonal: namely [ P1P1], [ P2P2], ═ P1, P2 '+ P1, P2' ═ 0.
The pilot sequences of user 1 and user 13 are orthogonal: namely [ P1P1], [ P1-P1], (P1), P1' -P1, P1 ═ 0. By analogy, the pilot sequences of each two users are orthogonal.
Therefore, the temperature of the molten metal is controlled,is [1,1]]The pilot sequence representing a certain user is the same on the first pilot symbols of both slots.Is [1, -1]]The sequence of the pilot sequence representing a certain user on the first pilot symbol of the two slots is reversed.
Alternatively to this, the first and second parts may,is [1,1]]Or [1, -1]The protocol may be agreed, or may be indicated by indication information, for example, the terminal device receives third indication information, where the third indication information is used to indicate: the pilot sequence of a user has the opposite sequence on the first pilot symbol on the first slot as on the first pilot symbol on the second slot.
For example, as shown in Table one, a table for agreement conventions, a representationThe value of (a).
| Sequence index Noc | Normal cyclic prefix | Extended cyclic prefix |
| 0 | [1 1] | - |
| 1 | [1 -1] | - |
Watch 1
In table i, the sequence index Noc is the third indication information.
After steps 103 and 104 are completed, step 105 is executed next, in which the terminal device transmits uplink data, the uplink data including the SC-FDMA symbol for data transmission and the SC-FDMA symbol for pilot transmission, for example, the uplink data is transmitted through a physical antenna. This part of the disclosure is well known to those skilled in the art and will not be described further herein.
Alternatively, the first instruction information, the second instruction information, and the third instruction information may be instructed in the same instruction field, and for example, the instruction may be instructed by the recipe parameter K, where K is 0, which indicates that a is 1, b is 0, and Noc is 0. Orthogonal sequences are indexed by resourcesAnd (4) determining. This time indicates that the terminal device is operating in the existing mode. When K is 1, it means that a is 0, b is 0, and Noc is 0, and it means that spreading processing is performed using an orthogonal sequence indexed by a resource indexAnd (4) determining. When K is 2, it means that a is 0, b is 1, and Noc is 0, and it means that spreading processing is performed using two orthogonal sequences, each of which is indexed by a resource indexAnd resource indexingAnd (4) determining. When K is 3, it means that a is 0, b is 1, and Noc is 1, and it means that spreading processing is performed using two orthogonal sequences, each of which is indexed by a resource indexAnd resource indexingAnd (4) determining.
At a network side equipment side, the network side equipment determines two physical resource blocks PRB of an uplink transmission resource for transmitting uplink data by terminal equipment; the time slots in which the two PRBs are located are different; the network side equipment receives the uplink data and the pilot frequency sequence on the two PRBs; the uplink data is spread spectrum data spread by two orthogonal sequences; pilot frequency sequences of different terminal devices are mutually orthogonal; and the network side equipment demodulates the uplink data sent by the terminal equipment according to the pilot frequency sequence sent by the terminal equipment.
The method for determining two PRBs for the terminal device to transmit uplink data by the network side device is the same as the method for determining by the terminal device side, and is also determined by formula (7), for example.
The network side device receives the uplink data and the pilot sequence on the two PRBs, and demodulates the uplink data according to the pilot sequence, which is well known to those skilled in the art, for example, channel estimation is performed according to the pilot sequence, and then a Maximum Likelihood (ML) algorithm may be used to demodulate the uplink data, so that details are not described herein.
Optionally, the network side device further sends any one or any combination of the first indication information to the third indication information to the terminal device.
OptionallyThe network side device also sends the resource index to the terminal deviceAnd resource indexing
The following description will be made by way of example, with reference to the table two.
Watch two
In Table two, users 1-6 use 1 code channel and corresponding resource index respectively0, 2, 4, 6, 8 and 10 respectively. Users 7-18 use 2 code channels respectively, each user uses any two code channels of 1, 3, 5, 7, 9 and 11 respectively, and index through resources respectivelyAnd resource indexingAnd (4) indicating. In theory, each user uses any two of the code channels 1, 3, 5, 7, 9, and 11, and then the method can supportMultiplexing of individual users, but because the pilot sequence is only 2 times that of 6 code channels, i.e. 12, because each user needs to be distinguished by using an orthogonal pilot sequence, multiplexing of only 12 users is supported here, so plus 6 users using 1 code channelAnd the technical effect that the uplink transmission resource supports multiplexing of 18 users is achieved.
Based on the same inventive concept, the embodiment of the present invention further provides a communication device (as shown in fig. 4), which is configured to implement any one of the foregoing methods.
When the communication device is a terminal device, the processor 10 is configured to encode and modulate an uplink control signal to obtain uplink modulation data; using two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data to obtain spread spectrum data; the two orthogonal sequences are obtained by performing cyclic shift based on the same base sequence; mapping the spread spectrum data to subcarriers on a physical resource block PRB corresponding to a first time slot and a second time slot of an uplink transmission resource and a single carrier frequency division multiple access (SC-FDMA) symbol for data transmission; placing pilot sequences on SC-FDMA symbols for pilot transmission on PRBs corresponding to the first time slot and the second time slot respectively; a transmitter 20, configured to transmit uplink data, where the uplink data includes the SC-FDMA symbol for data transmission and the SC-FDMA symbol for pilot transmission.
Optionally, the receiver 30 is configured to receive first indication information, where the first indication information is used to indicate that the terminal device needs to use two orthogonal sequences to perform spreading processing on the uplink modulation data.
Optionally, the subcarriers included in the PRB corresponding to the first time slot are completely the same as the subcarriers included in the PRB corresponding to the second time slot.
Optionally, the receiver 30 is configured to receive second indication information, where the second indication information is used to indicate that the subcarriers included in the PRB corresponding to the first time slot are identical to the subcarriers included in the PRB corresponding to the second time slot.
Optionally, the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first slot is opposite to the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second slot.
Optionally, the receiver 30 is configured to receive third indication information, where the third indication information is used to indicate: the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first time slot is opposite to the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second time slot.
Optionally, a receiver 30, the receiver 30 being configured to receive a resource indexThe processor 10 is configured to determine PRBs corresponding to the first time slot and the second time slot according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to the first time slot and the second time slot;numbering an antenna or a user; when a is 0, the subcarriers contained in the PRB corresponding to the first time slot and the subcarriers contained in the PRB corresponding to the second time slot are completely the same, and when a is 1, the subcarriers contained in the PRB corresponding to the first time slot are representedAnd the wave and the PRB corresponding to the second time slot contain different subcarriers.
Optionally, the receiver 30 is further configured to: receiving a resource indexThe processor 10 is further configured to: according to the resource indexDetermining a first orthogonal sequenceAccording to the resource indexDetermining a second orthogonal sequenceWherein;for the antenna number or the user number,
optionally, the processor 10 is configured to perform spreading processing on the uplink modulation data according to the following formula:
wherein, b is 1, and b is a linear alkyl group,for the purpose of the spread-spectrum data,the length of a physical uplink control channel PUCCH sequence; d (n) is the uplink modulated data,n＝0,1,...,9。
optionally, the processor 10 is further configured to: according to the resource indexDetermining a first orthogonal sequenceDetermining the pilot sequence by:
wherein,for the purpose of the said pilot sequence(s), the number of SC-FDMA symbols used for pilot transmission in one slot,m 'is a slot number, m' is 0,1,is equal to Is [1,1]]Or [1, -1]When the ACK or NACK information is carried on the SC-FDMA symbol for pilot transmission, z (e) is the ACK or NACK information, and if the ACK or NACK information is not carried, z (e) is 1.
When the communication device is a network side device, the processor 10 is configured to determine two physical resource blocks PRB of an uplink transmission resource for a terminal device to send uplink data; the time slots in which the two PRBs are located are different; a receiver 30, configured to receive the uplink data and the pilot sequence on the two PRBs; the uplink data is spread spectrum data spread by two orthogonal sequences; pilot frequency sequences of different terminal devices are mutually orthogonal; the processor 10 is further configured to demodulate uplink data sent by the terminal device according to the pilot sequence sent by the terminal device.
Optionally, the transmitter 20 is configured to transmit first indication information to the terminal device, where the first indication information is used to indicate that the terminal device needs to perform spread spectrum processing on the uplink modulation data by using two orthogonal sequences.
Optionally, the subcarriers included in the two PRBs are identical.
Optionally, the transmitter 20 sends second indication information to the terminal device, where the second indication information is used to indicate that the subcarriers included in the two PRBs are completely the same.
Optionally, the pilot sequences of the terminal device on the first pilot symbols on different time slots where the two PRBs are located are opposite.
Optionally, the transmitter 20 is configured to transmit third indication information to the terminal device, where the third indication information is used to indicate that pilot sequences of the terminal device on first pilot symbols on different time slots where the two PRBs are located are opposite.
Optionally, the transmitter 20, transmits the resource indexAnd resource indexingTo the terminal device, wherein the resource indexFor determining the positions of the two PRBs, one of the two orthogonal sequences and the pilot sequence, the resource indexFor determining the other of the two orthogonal sequences.
Optionally, the processor 10 is configured to determine the two PRBs according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to different time slots contained in the two PRBs;numbering an antenna or a user; when a is 0, the subcarriers contained in the two PRBs are completely the same, and when a is 1, the subcarriers contained in the two PRBs are completely different.
Based on the same inventive concept, the embodiment of the present invention further provides a device for transmitting an uplink control signal, where the device includes a functional module for executing the foregoing method steps. The transmission device may be the terminal device, or may be integrated in the terminal device as a functional module. The transmission device may also be the aforementioned network side device, or may be integrated as a functional module in the network side device. As an example, as shown in fig. 7, the apparatus includes: a receiving unit 201, a processing unit 202 and a transmitting unit 203. In practical application, other unit modules can be configured according to actual requirements.
Specifically, when the transmission apparatus is used to implement the function of the terminal device, the processing unit 202 is configured to encode and modulate an uplink control signal to obtain uplink modulation data; using two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data to obtain spread spectrum data; the two orthogonal sequences are obtained by performing cyclic shift based on the same base sequence; mapping the spread spectrum data to subcarriers on a physical resource block PRB corresponding to a first time slot and a second time slot of an uplink transmission resource and a single carrier frequency division multiple access (SC-FDMA) symbol for data transmission; placing pilot sequences on SC-FDMA symbols for pilot transmission on PRBs corresponding to the first time slot and the second time slot respectively; a sending unit 203, configured to send uplink data, where the uplink data includes the SC-FDMA symbol for data transmission and the SC-FDMA symbol for pilot transmission.
Optionally, the receiving unit 201 is configured to receive first indication information, where the first indication information is used to indicate that the terminal device needs to use two orthogonal sequences to perform spreading processing on the uplink modulation data.
Optionally, the subcarriers included in the PRB corresponding to the first time slot are completely the same as the subcarriers included in the PRB corresponding to the second time slot.
Optionally, the receiving unit 201 is configured to receive second indication information, where the second indication information is used to indicate that subcarriers included in the PRB corresponding to the first time slot are identical to subcarriers included in the PRB corresponding to the second time slot.
Optionally, the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first slot is opposite to the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second slot.
Optionally, the receiving unit 201 is configured to receive third indication information, where the third indication information is used to indicate: the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first time slot is opposite to the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second time slot.
Optionally, the receiving unit 201, where the receiving unit 201 is configured to receive the resource indexThe processing unit 202 is configured to determine PRBs corresponding to the first time slot and the second time slot according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to the first time slot and the second time slot;numbering an antenna or a user; when a is 0, the sub-carriers contained in the PRB corresponding to the first time slot and the sub-carriers contained in the PRB corresponding to the second time slot are completely the same, and when a is 1, the sub-carriers contained in the PRB corresponding to the first time slot are representedThe sub-carriers included in the PRB of (a) are completely different from the sub-carriers included in the PRB corresponding to the second slot.
Optionally, the receiving unit 201 is further configured to: receiving a resource indexThe processing unit 202 is further configured to: according to the resource indexDetermining a first orthogonal sequenceAccording to the resource indexDetermining a second orthogonal sequenceWherein;for the antenna number or the user number,
optionally, the processing unit 202 is configured to perform spreading processing on the uplink modulation data according to the following formula:
wherein, b is 1, and b is a linear alkyl group,for the purpose of the spread-spectrum data,the length of a physical uplink control channel PUCCH sequence; dAnd (n) is the uplink modulation data, and n is 0, 1.
Optionally, the processing unit 202 is further configured to: according to the resource indexDetermining a first orthogonal sequenceDetermining the pilot sequence by:
wherein,for the purpose of the said pilot sequence(s), the number of SC-FDMA symbols used for pilot transmission in one slot,m 'is a slot number, m' is 0,1,is equal to Is [1,1]]Or [1, -1]When the ACK or NACK information is carried on the SC-FDMA symbol for pilot transmission, z (e) is the ACK or NACK information, and if the ACK or NACK information is not carried, z (e) is 1.
When the transmission apparatus is used to implement the function of a network side device, the processing unit 202 is configured to determine two physical resource blocks PRB of an uplink transmission resource for a terminal device to send uplink data; the time slots in which the two PRBs are located are different; a receiving unit 201, configured to receive the uplink data and the pilot sequence on the two PRBs; the uplink data is spread spectrum data spread by two orthogonal sequences; pilot frequency sequences of different terminal devices are mutually orthogonal; the processing unit 202 is further configured to demodulate uplink data sent by the terminal device according to the pilot sequence sent by the terminal device.
Optionally, the sending unit 203 is configured to send first indication information to the terminal device, where the first indication information is used to indicate that the terminal device needs to use two orthogonal sequences to perform spreading processing on the uplink modulation data.
Optionally, the subcarriers included in the two PRBs are identical.
Optionally, the sending unit 203 sends second indication information to the terminal device, where the second indication information is used to indicate that the subcarriers included in the two PRBs are completely the same.
Optionally, the pilot sequences of the terminal device on the first pilot symbols on different time slots where the two PRBs are located are opposite.
Optionally, the sending unit 203 is configured to send third indication information to the terminal device, where the third indication information is used to indicate that pilot sequences of the terminal device on first pilot symbols on different time slots where the two PRBs are located are opposite.
Optionally, the sending unit 203 sends the resource indexAnd resource indexingTo the saidTerminal device, wherein the resource indexFor determining the positions of the two PRBs, one of the two orthogonal sequences and the pilot sequence, the resource indexFor determining the other of the two orthogonal sequences.
Optionally, the processing unit 202 is configured to determine PRBs corresponding to the first time slot and the second time slot according to the following formulas:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to different time slots contained in the two PRBs;numbering an antenna or a user; when a is 0, the subcarriers contained in the two PRBs are completely the same, and when a is 1, the subcarriers contained in the two PRBs are completely different.
Various changes and specific examples in the transmission method of the uplink control signal in the foregoing embodiment are also applicable to the transmission apparatus in fig. 7 and the communication device in fig. 4, and through the foregoing detailed description of the transmission method of the uplink control signal, those skilled in the art can clearly know the implementation method of the transmission apparatus in fig. 7 and the communication device in fig. 4, so for the brevity of the description, detailed descriptions are omitted here.
As will be appreciated by one skilled in the art, embodiments of the present invention may provide a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (36)
1. A method for transmitting an uplink control signal, comprising:
the terminal equipment encodes and modulates the uplink control signal to obtain uplink modulation data;
the terminal equipment uses two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data to obtain spread spectrum data; the two orthogonal sequences are obtained by performing cyclic shift based on the same base sequence;
the terminal equipment maps the spread spectrum data to subcarriers on a physical resource block PRB corresponding to a first time slot and a second time slot of an uplink transmission resource and a single carrier frequency division multiple access (SC-FDMA) symbol for data transmission;
the terminal equipment places pilot sequences on SC-FDMA symbols for pilot transmission on PRBs corresponding to the first time slot and the second time slot respectively;
the terminal device sends uplink data, and the uplink data comprises the SC-FDMA symbol for data transmission and the SC-FDMA symbol for pilot transmission.
2. The method of claim 1, wherein the method further comprises:
and the terminal equipment receives first indication information, wherein the first indication information is used for indicating that the terminal equipment needs to use two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data.
3. The method according to claim 1 or 2, wherein the PRB corresponding to the first time slot comprises exactly the same subcarriers as the PRB corresponding to the second time slot.
4. The method of any one of claims 1-3, further comprising:
and the terminal equipment receives second indication information, wherein the second indication information is used for indicating that the subcarriers contained in the PRB corresponding to the first time slot are completely the same as the subcarriers contained in the PRB corresponding to the second time slot.
5. The method according to claim 1 or 2, wherein before the terminal device maps the spread spectrum data onto physical resource blocks, PRBs, corresponding to a first slot and a second slot, respectively, of an uplink transmission resource, the method further comprises:
the terminal equipment receives the resource index
The terminal device determines the PRBs corresponding to the first time slot and the second time slot according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to the first time slot and the second time slot;numbering an antenna or a user; when a is 0, the sub-carriers contained in the PRB corresponding to the first time slot and the sub-carriers contained in the PRB corresponding to the second time slot are completely the same; when a is 1, the sub-carriers included in the PRB corresponding to the first time slot and the sub-carriers included in the PRB corresponding to the second time slot are completely different.
6. The method of claim 5, wherein before the terminal device performs spread spectrum processing on the uplink modulated data using two orthogonal sequences, the method further comprises:
the terminal equipment receives the resource index
The terminal equipment indexes according to the resourcesDetermining a first orthogonal sequence
The terminal equipment indexes according to the resourcesDetermining a second orthogonal sequenceWherein;for the antenna number or the user number,
7. the method of claim 6, wherein the terminal device performs spread spectrum processing on the uplink modulated data by using two orthogonal sequences, comprising:
the terminal equipment performs spread spectrum processing on the uplink modulation data according to the following formula:
<mrow> <msup> <mi>z</mi> <mrow> <mo>(</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msup> <mrow> <mo>(</mo> <msubsup> <mi>N</mi> <mrow> <mi>s</mi> <mi>e</mi> <mi>q</mi> </mrow> <mrow> <mi>P</mi> <mi>U</mi> <mi>C</mi> <mi>C</mi> <mi>H</mi> </mrow> </msubsup> <mo>&CenterDot;</mo> <mi>n</mi> <mo>+</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mn>1</mn> <msqrt> <mrow> <mn>2</mn> <mi>P</mi> </mrow> </msqrt> </mfrac> <mi>d</mi> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>&CenterDot;</mo> <mrow> <mo>(</mo> <msubsup> <mi>r</mi> <mrow> <mi>u</mi> <mo>,</mo> <mi>v</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>&alpha;</mi> <mrow> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>,</mo> <mn>0</mn> </mrow> </msub> <mo>)</mo> </mrow> </msubsup> <mo>(</mo> <mi>i</mi> <mo>)</mo> <mo>+</mo> <mi>b</mi> <mo>&CenterDot;</mo> <msubsup> <mi>r</mi> <mrow> <mi>u</mi> <mo>,</mo> <mi>v</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>&alpha;</mi> <mrow> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>,</mo> <mn>1</mn> </mrow> </msub> <mo>)</mo> </mrow> </msubsup> <mo>(</mo> <mi>i</mi> <mo>)</mo> <mo>)</mo> </mrow> </mrow>
wherein, b is 1, and b is a linear alkyl group,for the purpose of the spread-spectrum data,the length of a physical uplink control channel PUCCH sequence; d (n) is the uplink modulation data, and n is 0, 1.
8. The method of claim 5, wherein prior to the terminal device placing a pilot sequence on SC-FDMA symbols for pilot transmission on PRBs corresponding to the first slot and the second slot, respectively, the method further comprises:
the terminal equipment indexes according to the resourcesDetermining a first orthogonal sequence
The terminal device determines the pilot sequence by the following formula:
<mrow> <msubsup> <mi>r</mi> <mrow> <mi>P</mi> <mi>U</mi> <mi>C</mi> <mi>C</mi> <mi>H</mi> </mrow> <mrow> <mo>(</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msubsup> <mo>(</mo> <mrow> <msup> <mi>m</mi> <mo>,</mo> </msup> <msubsup> <mi>N</mi> <mrow> <mi>R</mi> <mi>S</mi> </mrow> <mrow> <mi>P</mi> <mi>U</mi> <mi>C</mi> <mi>C</mi> <mi>H</mi> </mrow> </msubsup> <msubsup> <mi>M</mi> <mrow> <mi>s</mi> <mi>c</mi> </mrow> <mrow> <mi>R</mi> <mi>S</mi> </mrow> </msubsup> <mo>+</mo> <msubsup> <mi>eM</mi> <mrow> <mi>s</mi> <mi>c</mi> </mrow> <mrow> <mi>R</mi> <mi>S</mi> </mrow> </msubsup> <mo>+</mo> <mi>i</mi> </mrow> <mo>)</mo> <mo>=</mo> <mfrac> <mn>1</mn> <msqrt> <mi>P</mi> </msqrt> </mfrac> <msup> <mover> <mi>w</mi> <mo>&OverBar;</mo> </mover> <mrow> <mo>(</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msup> <mrow> <mo>(</mo> <mi>e</mi> <mo>)</mo> </mrow> <mi>z</mi> <mrow> <mo>(</mo> <mi>e</mi> <mo>)</mo> </mrow> <msubsup> <mi>r</mi> <mrow> <mi>u</mi> <mo>,</mo> <mi>v</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>&alpha;</mi> <mrow> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>,</mo> <mn>0</mn> </mrow> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> </mrow>
wherein,for the purpose of the said pilot sequence(s), the number of SC-FDMA symbols used for pilot transmission in one slot,m 'is a slot number, m' is 0,1,is equal to Is [1,1]]Or [1, -1]When the ACK or NACK information is carried on the SC-FDMA symbol for pilot transmission, z (e) is the ACK or NACK information, and if the ACK or NACK information is not carried, z (e) is 1.
9. The method of any of claims 1-8, wherein the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first time slot is the opposite of the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second time slot.
10. The method of any one of claims 1-9, further comprising:
the terminal equipment receives third indication information, wherein the third indication information is used for indicating: the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first time slot is opposite to the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second time slot.
11. A method for transmitting an uplink control signal, comprising:
the method comprises the steps that network side equipment determines two Physical Resource Blocks (PRBs) of uplink transmission resources for sending uplink data by terminal equipment; the time slots in which the two PRBs are located are different;
the network side equipment receives the uplink data and the pilot frequency sequence on the two PRBs; the uplink data is spread spectrum data spread by two orthogonal sequences; pilot frequency sequences of different terminal devices are mutually orthogonal;
and the network side equipment demodulates the uplink data sent by the terminal equipment according to the pilot frequency sequence sent by the terminal equipment.
12. The method of claim 11, wherein before the network-side device receives the uplink data and pilot sequences on the two PRBs, the method further comprises:
the network side device sends first indication information to the terminal device, wherein the first indication information is used for indicating that the terminal device needs to use two orthogonal sequences to perform spread spectrum processing on the uplink modulation data.
13. The method according to claim 11 or 12, wherein the two PRBs comprise exactly the same subcarriers.
14. The method of any one of claims 11-13, further comprising:
and the network side equipment sends second indication information to the terminal equipment, wherein the second indication information is used for indicating that the subcarriers contained in the two PRBs are completely the same.
15. The method of any one of claims 11-14, further comprising:
the network side equipment sends the resource indexAnd resource indexingTo the terminal device, wherein the resource indexFor determining the positions of the two PRBs, one of the two orthogonal sequences and thePilot sequence, the resource indexFor determining the other of the two orthogonal sequences;an antenna number or a user number.
16. The method of claim 15, wherein the network-side device determining the two PRBs comprises:
the network side device determines the two PRBs according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to different time slots contained in the two PRBs; when a is 0, the subcarriers contained in the two PRBs are completely the same, and when a is 1, the subcarriers contained in the two PRBs are completely different.
17. The method according to any of claims 11-16, wherein the pilot sequences of the terminal device on the first pilot symbols on the different slots where the two PRBs are located are opposite.
18. The method of any one of claims 11-15, further comprising:
and the network side equipment sends third indication information to the terminal equipment, wherein the third indication information is used for indicating that the pilot sequences of the terminal equipment on the first pilot symbols on different time slots where the two PRBs are located are opposite.
19. A terminal device, comprising:
the processor is used for coding and modulating the uplink control signal to obtain uplink modulation data; using two orthogonal sequences to carry out spread spectrum processing on the uplink modulation data to obtain spread spectrum data; the two orthogonal sequences are obtained by performing cyclic shift based on the same base sequence; mapping the spread spectrum data to subcarriers on a physical resource block PRB corresponding to a first time slot and a second time slot of an uplink transmission resource and a single carrier frequency division multiple access (SC-FDMA) symbol for data transmission; placing pilot sequences on SC-FDMA symbols for pilot transmission on PRBs corresponding to the first time slot and the second time slot respectively;
a transmitter for transmitting uplink data, the uplink data including the SC-FDMA symbol for data transmission and the SC-FDMA symbol for pilot transmission.
20. The terminal device of claim 19, wherein the terminal device further comprises a receiver configured to receive first indication information, and the first indication information is used to indicate that the terminal device needs to perform spreading processing on the uplink modulated data by using two orthogonal sequences.
21. The terminal device according to claim 19 or 20, wherein the PRB for the first slot contains exactly the same subcarriers as the PRB for the second slot.
22. The terminal device of claim 19, wherein the terminal device further comprises a receiver configured to receive second indication information, and the second indication information is used to indicate that the sub-carriers included in the PRB corresponding to the first slot are identical to the sub-carriers included in the PRB corresponding to the second slot.
23. The terminal device of claim 19, wherein the terminal device further comprises a receiver,
the receiver is used for receiving the resource index
The processor is configured to determine PRBs corresponding to the first slot and the second slot according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to the first time slot and the second time slot;numbering an antenna or a user; when a is 0, characterizing the sub-carriers and the second sub-carriers included in the PRB corresponding to the first time slotWhen a is 1, the sub-carriers included in the PRB corresponding to the first time slot are completely different from the sub-carriers included in the PRB corresponding to the second time slot.
24. The terminal device of claim 23, wherein the receiver is further configured to: receiving a resource index
The processor is further configured to: according to the resource indexDetermining a first orthogonal sequenceAccording to the resource indexDetermining a second orthogonal sequenceWherein;for the antenna number or the user number,
25. the terminal device of claim 24, wherein the processor is configured to perform spreading processing on the uplink modulated data according to the following formula:
<mrow> <msup> <mi>z</mi> <mrow> <mo>(</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msup> <mrow> <mo>(</mo> <msubsup> <mi>N</mi> <mrow> <mi>s</mi> <mi>e</mi> <mi>q</mi> </mrow> <mrow> <mi>P</mi> <mi>U</mi> <mi>C</mi> <mi>C</mi> <mi>H</mi> </mrow> </msubsup> <mo>&CenterDot;</mo> <mi>n</mi> <mo>+</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mn>1</mn> <msqrt> <mrow> <mn>2</mn> <mi>P</mi> </mrow> </msqrt> </mfrac> <mi>d</mi> <mrow> <mo>(</mo> <mi>n</mi> <mo>)</mo> </mrow> <mo>&CenterDot;</mo> <mrow> <mo>(</mo> <msubsup> <mi>r</mi> <mrow> <mi>u</mi> <mo>,</mo> <mi>v</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>&alpha;</mi> <mrow> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>,</mo> <mn>0</mn> </mrow> </msub> <mo>)</mo> </mrow> </msubsup> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>+</mo> <mi>b</mi> <mo>&CenterDot;</mo> <msubsup> <mi>r</mi> <mrow> <mi>u</mi> <mo>,</mo> <mi>v</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>&alpha;</mi> <mrow> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>,</mo> <mn>1</mn> </mrow> </msub> <mo>)</mo> </mrow> </msubsup> <mo>(</mo> <mi>i</mi> <mo>)</mo> <mo>)</mo> </mrow>
wherein, b is 1, and b is a linear alkyl group,for the purpose of the spread-spectrum data,the length of a physical uplink control channel PUCCH sequence; d (n) is the uplink modulation data, and n is 0, 1.
26. The terminal device of claim 23, wherein the processor is further configured to: according to the resource indexDetermining a first orthogonal sequenceDetermining the pilot sequence by:
<mrow> <msubsup> <mi>r</mi> <mrow> <mi>P</mi> <mi>U</mi> <mi>C</mi> <mi>C</mi> <mi>H</mi> </mrow> <mrow> <mo>(</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <msup> <mi>m</mi> <mo>,</mo> </msup> <msubsup> <mi>N</mi> <mrow> <mi>R</mi> <mi>S</mi> </mrow> <mrow> <mi>P</mi> <mi>U</mi> <mi>C</mi> <mi>C</mi> <mi>H</mi> </mrow> </msubsup> <msubsup> <mi>M</mi> <mrow> <mi>s</mi> <mi>c</mi> </mrow> <mrow> <mi>R</mi> <mi>S</mi> </mrow> </msubsup> <mo>+</mo> <msubsup> <mi>eM</mi> <mrow> <mi>s</mi> <mi>c</mi> </mrow> <mrow> <mi>R</mi> <mi>S</mi> </mrow> </msubsup> <mo>+</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mn>1</mn> <msqrt> <mi>P</mi> </msqrt> </mfrac> <msup> <mover> <mi>w</mi> <mo>&OverBar;</mo> </mover> <mrow> <mo>(</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msup> <mrow> <mo>(</mo> <mi>e</mi> <mo>)</mo> </mrow> <mi>z</mi> <mrow> <mo>(</mo> <mi>e</mi> <mo>)</mo> </mrow> <msubsup> <mi>r</mi> <mrow> <mi>u</mi> <mo>,</mo> <mi>v</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>&alpha;</mi> <mrow> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>,</mo> <mn>0</mn> </mrow> </msub> <mo>)</mo> </mrow> </msubsup> <mrow> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> </mrow>
wherein,for the purpose of the said pilot sequence(s), the number of SC-FDMA symbols used for pilot transmission in one slot,m 'is a slot number, m' is 0,1,is equal to Is [1,1]]Or [1, -1]When the ACK or NACK information is carried on the SC-FDMA symbol for pilot transmission, z (e) is the ACK or NACK information, and if the ACK or NACK information is not carried, z (e) is 1.
27. The terminal device of any of claims 19-25, wherein a pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first time slot is opposite to a pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second time slot.
28. The terminal device of claim 19, wherein the terminal device further comprises a receiver configured to receive third indication information indicating that: the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the first time slot is opposite to the pilot sequence of the terminal device on the first SC-FDMA symbol for pilot transmission on the second time slot.
29. A network-side device, comprising:
the processor is used for determining two Physical Resource Blocks (PRBs) of an uplink transmission resource for transmitting uplink data by the terminal equipment; the time slots in which the two PRBs are located are different;
a receiver configured to receive the uplink data and a pilot sequence on the two PRBs; the uplink data is spread spectrum data spread by two orthogonal sequences; pilot frequency sequences of different terminal devices are mutually orthogonal;
the processor is further configured to demodulate uplink data sent by the terminal device according to the pilot sequence sent by the terminal device.
30. The network-side device of claim 29, wherein the network-side device further includes a transmitter configured to transmit first indication information to the terminal device, where the first indication information is used to indicate that the terminal device needs to perform spreading processing on the uplink modulated data by using two orthogonal sequences.
31. The network-side device of claim 29 or 30, wherein the two PRBs comprise identical subcarriers.
32. The network-side device of claim 29, further comprising a transmitter configured to transmit second indication information to the terminal device, wherein the second indication information is used to indicate that the two PRBs contain identical subcarriers.
33. The network-side device of claim 29, wherein the network-side device further comprises a transmitter for transmitting the resource indexAnd resource indexingTo the terminal device, wherein the resource indexFor determining the positions of the two PRBs, one of the two orthogonal sequences and the pilot sequence, the resource indexFor determining the other of the two orthogonal sequencesAn orthogonal sequence;an antenna number or a user number.
34. The network-side device of claim 33, wherein the processor is configured to determine the two PRBs according to the following formula:
wherein, is the number of subcarriers, n, contained in one PRBsIs a time slot number, and is a time slot number,denotes rounding down, nPRBThe PRB numbers respectively correspond to different time slots contained in the two PRBs; when a is 0, the subcarriers contained in the two PRBs are completely the same, and when a is 1, the subcarriers contained in the two PRBs are completely different.
35. The network-side device of any one of claims 29-34, wherein the pilot sequences of the terminal device on the first pilot symbols on the different slots where the two PRBs are located are opposite.
36. The network-side device of claim 29, wherein the network-side device further comprises a transmitter configured to transmit third indication information to the terminal device, wherein the third indication information is used to indicate that the pilot sequences of the terminal device on the first pilot symbols on the different slots where the two PRBs are located are opposite.
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| PCT/CN2017/102206 WO2018059270A1 (en) | 2016-09-28 | 2017-09-19 | Uplink control signal transmission method, network side device and terminal device |
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| CN110535594A (en) * | 2018-10-22 | 2019-12-03 | 中兴通讯股份有限公司 | Pilot frequency sequence configuration method, device and electronic equipment, storage medium |
| CN110572346A (en) * | 2019-09-12 | 2019-12-13 | 海能达通信股份有限公司 | Pilot signal sending method and related equipment |
| WO2021087774A1 (en) * | 2019-11-05 | 2021-05-14 | 华为技术有限公司 | Communication method and related device |
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| WO2022036566A1 (en) * | 2020-08-18 | 2022-02-24 | Oppo广东移动通信有限公司 | Control channel transmission method, terminal, network device and storage medium |
| CN114979968A (en) * | 2021-02-26 | 2022-08-30 | 上海推络通信科技合伙企业(有限合伙) | A method and apparatus in a node for wireless communication |
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| CN113037429A (en) * | 2019-12-24 | 2021-06-25 | 维沃移动通信有限公司 | Uplink control information transmission method, terminal equipment and network side equipment |
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| WO2022036566A1 (en) * | 2020-08-18 | 2022-02-24 | Oppo广东移动通信有限公司 | Control channel transmission method, terminal, network device and storage medium |
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