Communication processing method and apparatus

Abstract

The present disclosure provides a communication processing method and apparatus, and relates to the technical field of communications. The method comprises: a network device sending first information to a terminal device, wherein the first information is used for determining configuration information corresponding to a first reference signal, and the first reference signal is a reference signal based on CDD precoding. In the present disclosure, by means of CDD precoding design, a first reference signal sending a plurality of candidate beams is precoded, and configuration information corresponding to a terminal device is issued, so that the terminal device can simultaneously receive and measure the plurality of candidate beams on the basis of the configuration information, thereby improving the feedback efficiency of candidate beam measurement, and solving the problem of the feedback time for candidate beam measurement being relatively long.

Description

Communication processing method and device Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication processing method and device. Background Art

[0002] The width of the beam is related to the size and frequency of the antenna array. The higher the frequency, the narrower the beam, and the larger the antenna array, the narrower the beam. This results in extremely narrow beams for high-frequency massive MIMO (Multiple Input Multiple Output) systems. Therefore, to cover the same cell, high-frequency massive MIMO systems require more beams than New Radio (NR) systems.

[0003] Summary of the Invention

[0004] The present disclosure proposes a communication processing method and apparatus, which can implement reference signal measurement based on cyclic delay diversity (CDD) precoding, thereby improving the feedback efficiency of candidate beam measurement.

[0005] An embodiment of the first aspect of the present disclosure provides a communication processing method, which is executed by a network device, and the method includes: sending first information to a terminal device; wherein the first information is used to determine configuration information corresponding to a first reference signal, and the first reference signal is a reference signal based on CDD precoding.

[0006] In some embodiments of the present disclosure, the configuration information includes at least one of the following:

[0007] The number of ports sending the first reference signal; the serial index of each port sending the first reference signal; the cyclic shift of the CDD precoding of each port sending the first reference signal; the cyclic shift ratio of the CDD precoding of each port sending the first reference signal; and the frequency domain density of the first reference signal.

[0008] In some embodiments of the present disclosure, the method further includes: receiving second information sent by the terminal device; determining a first CDD precoding according to the second information; and sending a signal to communicate with the terminal device based on the first CDD precoding.

[0009] In some embodiments of the present disclosure, the second information includes at least one of the following items determined by the terminal device based on a delay power profile (PDP) measurement result of the first reference signal:

[0010] The number index of the port whose PDP measurement result meets the preset conditions; the cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; the cyclic shift ratio of CDD precoding of the port whose PDP measurement result meets the preset conditions.

[0011] In some embodiments of the present disclosure, the second information further includes a delay power value corresponding to a port whose PDP measurement result meets a preset condition.

[0012] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0013] Sending the number index of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift ratio of each port of the first reference signal and the corresponding PDP measurement result.

[0014] In some embodiments of the present disclosure, the second information further includes delay power values ​​corresponding to each port that sends the first reference signal.

[0015] In some embodiments of the present disclosure, determining the first CDD precoding according to the second information includes at least one of the following:

[0016] Determine the number index of the port corresponding to the first CDD precoding; determine the cyclic shift of the CDD precoding of the port corresponding to the first CDD precoding; and determine the cyclic shift ratio of the CDD precoding of the port corresponding to the first CDD precoding.

[0017] In some embodiments of the present disclosure, the CDD precoding information of the first reference signal is determined based on the second CDD precoding of the subcarrier at the frequency of the first reference signal.

[0018] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0019] in, is the CDD precoding of the i-th subcarrier on the k-th port, is the cyclic shift ratio of CDD precoding for the kth port, and j is a complex unit, Δi is the frequency domain density of the first reference signal.

[0020] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0021] in, is the CDD precoding of the i-th subcarrier on the k-th port, NFFT is the number of Fourier sampling points, is the cyclic shift of CDD precoding of the kth port, and j is a complex unit, Δi is the frequency domain density of the first reference signal.

[0022] In some embodiments of the present disclosure, the first information is carried in at least one of the following signalings:

[0023] Radio Resource Control (RRC) message; Media Access Control (MAC) Control Element (CE); Downlink Control Information (DCI).

[0024] A second aspect embodiment of the present disclosure provides a communication processing method, which is executed by a terminal device, and the method includes: receiving first information sent by a network device; determining configuration information corresponding to a first reference signal based on the first information, wherein the first reference signal is a reference signal based on CDD precoding.

[0025] In some embodiments of the present disclosure, the configuration information includes at least one of the following:

[0026] The number of ports sending the first reference signal; the serial index of each port sending the first reference signal; the cyclic shift of the CDD precoding of each port sending the first reference signal; the cyclic shift ratio of the CDD precoding of each port sending the first reference signal; and the frequency domain density of the first reference signal.

[0027] In some embodiments of the present disclosure, the method further includes: sending second information to the network device, where the second information is used to determine a first CDD precoding; and receiving a signal sent by the network device based on the first CDD precoding.

[0028] In some embodiments of the present disclosure, the second information includes at least one of the following items determined by the terminal device according to a delay power profile PDP measurement result of the first reference signal:

[0029] The number index of the port whose PDP measurement result meets the preset conditions; the cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; the cyclic shift ratio of CDD precoding of the port whose PDP measurement result meets the preset conditions.

[0030] In some embodiments of the present disclosure, the second information further includes a delay power value corresponding to a port whose PDP measurement result meets a preset condition.

[0031] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0032] Sending the number index of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift ratio of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result.

[0033] In some embodiments of the present disclosure, the second information further includes delay power values ​​corresponding to each port that sends the first reference signal.

[0034] In some embodiments of the present disclosure, the first CDD precoding includes at least one of the following:

[0035] The number index of the port corresponding to the first CDD precoding; the cyclic shift of the CDD precoding of the port corresponding to the first CDD precoding; and the cyclic shift ratio of the CDD precoding of the port corresponding to the first CDD precoding.

[0036] In some embodiments of the present disclosure, the CDD precoding of the first reference signal is determined according to the second CDD precoding of the subcarrier at the frequency of the first reference signal.

[0037] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0038] in, is the CDD precoding of the i-th subcarrier on the k-th port, is the cyclic shift ratio of CDD precoding for the kth port, and Δi is the frequency domain density of the first reference signal.

[0039] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0040] in, is the CDD precoding of the i-th subcarrier on the k-th port, NFFT is the number of Fourier sampling points, is the cyclic shift of CDD precoding of the kth port, and Δi is the frequency domain density of the first reference signal.

[0041] In some embodiments of the present disclosure, the first information is carried in at least one of the following signalings:

[0042] RRC message; MAC CE; DCI.

[0043] An embodiment of the third aspect of the present disclosure provides a network device, including: a sending module, configured to send first information to a terminal device; wherein the first information is used to determine configuration information corresponding to a first reference signal, and the first reference signal is a reference signal based on CDD precoding.

[0044] An embodiment of the fourth aspect of the present disclosure provides a terminal device, including: a receiving module, configured to receive first information sent by a network device; and determine configuration information corresponding to a first reference signal based on the first information, wherein the first reference signal is a reference signal based on CDD precoding.

[0045] A fifth aspect embodiment of the present disclosure provides a communication processing system, including: a network device and a terminal device; the network device executes the method as described in the first aspect embodiment, and the terminal device executes the method as described in the second aspect embodiment.

[0046] The sixth aspect embodiment of the present disclosure provides a communication device, which includes: a transceiver; a memory; and a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method described in the first aspect embodiment or the second aspect embodiment.

[0047] The seventh aspect embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the method described in the first aspect embodiment or the second aspect embodiment can be implemented.

[0048] The disclosed embodiments provide a communication processing method and apparatus, in which a network device transmits first information to a terminal device; the first information is used to determine configuration information corresponding to a first reference signal, which is a reference signal based on CDD precoding. This embodiment utilizes a CDD precoding design to precode the first reference signal that transmits multiple candidate beams, and transmits the corresponding configuration information to the terminal device. This allows the terminal device to simultaneously receive and measure multiple candidate beams based on the configuration information, improving the feedback efficiency of candidate beam measurements and resolving the issue of long candidate beam measurement feedback time.

[0049] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0051] FIG1 is a schematic diagram of the architecture of a communication processing system according to an embodiment of the present disclosure;

[0052] FIG2 is a timing diagram of a communication processing method according to an embodiment of the present disclosure;

[0053] FIG3 is a flow chart of a communication processing method according to an embodiment of the present disclosure;

[0054] FIG4 is a flow chart of a communication processing method according to an embodiment of the present disclosure;

[0055] FIG5 is a flow chart of a communication processing method according to an embodiment of the present disclosure;

[0056] FIG6 is a block diagram of a network device according to an embodiment of the present disclosure;

[0057] FIG7 is a block diagram of a terminal device according to an embodiment of the present disclosure;

[0058] FIG8 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

[0059] FIG9 is a schematic structural diagram of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0060] The embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure and are not to be construed as limiting the present disclosure. It should be noted that the embodiments of the present disclosure and the features in the embodiments may be combined with each other unless there is a conflict.

[0061] The present disclosure provides a communication processing method. In some embodiments, the terms "communication processing method," "information processing method," and "communication method" are interchangeable; the terms "communication processing device," "information processing device," and "communication device" are interchangeable; and the terms "communication processing system," "information processing system," and "communication system" are interchangeable.

[0062] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily exchanged. In addition, the optional implementations in a particular embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementations of other embodiments.

[0063] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0064] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0065] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0066] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0067] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0068] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0069] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0070] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0071] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0072] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0073] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0074] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0075] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0076] In some embodiments, "obtain", "get", "obtain", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from a protocol, obtaining by self-processing, autonomous implementation, etc.

[0077] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0078] In some embodiments, "predetermined" and "preset" can be interpreted as pre-specified in a protocol, etc., or can be interpreted as a pre-set action performed by a device, etc.

[0079] In some embodiments, determining may be interpreted as judging, calculating, computing, processing, deriving, investigating, searching, looking up, retrieving, ascertaining, receiving, transmitting, inputting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, “assuming,” “expecting,” “considering,” broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, and the like, but is not limited thereto.

[0080] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0081] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0082] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0083] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0084] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0085] In some embodiments, the threshold mentioned in this embodiment may be a numerical value, a constant, or some fixed value.

[0086] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0087] With the continuous development of wireless communications, the requirements for communication capabilities are becoming increasingly higher. For future application scenarios such as augmented reality (AR) / virtual reality (VR), Internet of Vehicles, Internet of Things, holographic communication, and ultra-high-definition video transmission, ultra-high-speed, ultra-low latency, and ultra-large bandwidth communications will become the norm. The existing FR1 and FR2 bandwidths are limited and cannot support the aforementioned services. Therefore, higher frequency bands, such as sub-THz and THz bands, are needed. According to the electromagnetic wave spatial path loss model, high-frequency free space path loss is higher, and the same transmission power results in a shorter radiation distance. Therefore, large-scale MIMO beamforming is needed to address the problem of short transmission distance.

[0088] The width of the beam is related to the size and frequency of the antenna array: the higher the frequency, the narrower the beam, and the larger the antenna array, the narrower the beam. This results in extremely narrow beams for high-frequency massive MIMO. Therefore, to cover the same cell, a high-frequency massive MIMO system requires more beams than an NR system. Furthermore, because high-frequency massive MIMO has a larger near-field range, and near-field beams are related not only to angle but also to distance, there are more near-field beams. Furthermore, because high-frequency electromagnetic waves have poor reflection and diffraction properties, they can generally be considered to have only a direct line of sight (LOS).

[0089] High-frequency massive MIMO systems, however, use beamforming to form beams with virtually no sidelobes, virtually no multipath, and low channel correlation, resulting in good spatial isolation between beams. Spectral efficiency can be effectively improved through spatial division multiplexing, a primary multiplexing method in high-frequency massive MIMO systems.

[0090] However, the terahertz frequency band is relatively high. If MIMO beamforming is used, the beam will become extremely narrow, and the coverage range and angle of a single beam will be very small. As the user moves, frequent beam switching is bound to occur, so frequent beam measurements are required during the beam tracking phase. If the existing solution is used to measure the beams in the candidate beam set one by one, it will take a long time to complete a round of measurements. Moreover, since the terminal device is constantly moving, it is possible that the candidate beam set has not yet completed the measurement and the current working beam has become invalid. This will cause the terminal device to believe that the beam has failed and need to re-initiate random access. Therefore, a fast beam measurement method is now needed that can enable the terminal device to complete the measurement of all candidate beam sets in a relatively short time so that beam switching can be completed in a timely manner.

[0091] To this end, this embodiment proposes a communication processing method and device for solving the above-mentioned technical problems. Through the precoding design of CDD, the first reference signal for sending multiple candidate beams is precoded, and the corresponding configuration information of the terminal device is sent down, so that the terminal device can simultaneously receive and measure multiple candidate beams according to the configuration information, thereby improving the feedback efficiency of the candidate beam measurement.

[0092] The communication processing method and device provided by the present disclosure are described in detail below with reference to the accompanying drawings.

[0093] FIG1 shows a structural diagram of a communication processing system according to an embodiment of the present disclosure. As shown in FIG1 , the system architecture may include a network device 11 and a terminal device 12 .

[0094] In some examples, the network device 11 may be an entity on the network side for transmitting or receiving signals. For example, the network device 11 may be a communication satellite, an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the network device 11. The network device 11 provided in the embodiments of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the protocol layer of a network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, while the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0095] In some examples, the terminal device 12 can be called a terminal, user equipment, mobile station (MS), mobile terminal (MT), etc. The terminal device 12 can also be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality device, an augmented reality device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device 12.

[0096] It can be understood that the communication processing system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0097] The following embodiments of the present disclosure may be applied to the communication processing system shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication processing system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, whether direct or indirect, and wired or wireless.

[0098] The embodiments of the present disclosure can be applied to satellite communications, Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G NR, Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark) 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0099] In some examples, network device 11 sends first information to terminal device 12. Terminal device 12 receives the first information sent by network device 11 and determines, based on the first information, configuration information corresponding to a first reference signal, where the first reference signal is a reference signal based on CDD precoding and is used to measure multiple candidate beams. This embodiment can precode the first reference signal for transmitting multiple candidate beams through a CDD precoding design. Terminal device 12 can simultaneously receive and measure multiple candidate beams based on this configuration information, thereby improving the feedback efficiency of candidate beam measurements and resolving the issue of long candidate beam measurement feedback time.

[0100] Furthermore, to illustrate the specific execution process of the above-mentioned communication processing system, FIG2 shows a timing diagram of a communication processing method according to an embodiment of the present disclosure. The method is applied to the above-mentioned communication processing system, as shown in FIG2, and may include the following steps:

[0101] Step 201: The network device sends first information to the terminal device.

[0102] In some embodiments, the terminal device may receive first information sent by the network device.

[0103] The first information may be used to determine configuration information corresponding to a first reference signal (RS), where the first reference signal is a reference signal based on CDD precoding.

[0104] For example, the network device can send the first reference signals of multiple candidate beams to the terminal device through multiple RS ports (hereinafter referred to as ports). The first reference signal is a reference signal based on CDD precoding, wherein the cyclic shifts used for transmitting signals on different ports are different. The first reference signal can be used to measure the multiple candidate beams, and then the target port that meets the requirements can be found from these ports and fed back to the network device, so that the network device can use the CDD precoding information corresponding to the target port (that is, use the cyclic shift corresponding to the target port) to perform CDD precoding on the signal sent to the terminal device and communicate with the terminal device. In this way, this embodiment can realize multi-beam transmission at the transmitting end through the CDD precoding design, and the receiving end can simultaneously receive and measure multiple beams, thereby improving the feedback efficiency of the candidate beam measurement.

[0105] The following describes in detail the process of precoding the first reference signal through CDD precoding design:

[0106] In some embodiments, the CDD precoding of the first reference signal may be determined based on a second CDD precoding of a subcarrier at a frequency of the first reference signal. The second CDD precoding may include at least one of the following:

[0107] The serial index of each port corresponding to the second CDD precoding; the cyclic shift of the CDD precoding of each port corresponding to the second CDD precoding; and the cyclic shift ratio of the CDD precoding of each port corresponding to the second CDD precoding.

[0108] There are multiple optional ways to implement the second CDD precoding. As an optional way, the second CDD precoding can be expressed using the following formula (1):

[0109] in, represents the CDD precoding of the i-th subcarrier on the k-th port, represents the cyclic shift ratio of CDD precoding of the kth port, and j represents a complex unit, Δi represents the frequency domain density of the first reference signal, that is, the reference signal frequency domain subcarrier density / interval, Δi=[1, 2, 3…].

[0110] As another optional method, the second CDD precoding can also be expressed using the following formula (2):

[0111] in, represents the CDD precoding of the i-th subcarrier on the k-th port, NFFT represents the number of Fourier sampling points, represents the cyclic shift of CDD precoding of the kth port, and j represents a complex unit, Δi represents the frequency domain density of the first reference signal.

[0112] For example, considering an orthogonal frequency division multiplexing (OFDM) symbol in the time domain, the first reference signal based on CDD precoding is S i is the transmitted signal on the i-th subcarrier, which can be specifically expressed by the following formula:

[0113] Among them, S i represents the transmitted signal on the i-th subcarrier, W represents the corresponding precoding of each port in the spatial domain, W=[w1w2…w K ], K represents the number of ports of the network device sending the first reference signal, K = [1, 2, 3 .....], r(i) represents the RS modulation symbol mapped to the i-th subcarrier, Represents the CDD precoding of the i-th subcarrier, which is used to achieve phase shift for each subcarrier. It can be expressed using the following formula:

[0114] in, represents the CDD precoding of the i-th subcarrier on the k-th port, and the specific expression can be shown in the above formula (1) or formula (2).

[0115] Based on the above-mentioned CDD precoding process, the network device needs to indicate the configuration information of the first reference signal to the terminal device. This configuration information can be used by the terminal device to determine all port information used by the network device to send the first reference signal. In this way, the terminal device can subsequently receive and measure multiple candidate beams simultaneously based on the configuration information, thereby improving the feedback efficiency of the candidate beam measurement. For example, the terminal device can find the target port information whose PDP measurement results meet the requirements (such as the maximum PDP) from these port information based on the PDP measurement results of the first reference signal, and then feed it back to the network device, so that the network device can use the CDD precoding information corresponding to the target port information to perform CDD precoding on the signal sent to the terminal device and communicate with the terminal device.

[0116] In some embodiments, the configuration information includes at least one of the following:

[0117] A. The number of ports that send the first reference signal, such as K mentioned in the introduction to the CDD precoding process above, that is, the number of all ports used by the network device to send the first reference signal;

[0118] B. the serial number index of each port sending the first reference signal, such as the k mentioned in the introduction of the CDD precoding process above, that is, the index identifier of each port used by the network device to send the first reference signal;

[0119] C. The cyclic shift of CDD precoding of each port sending the first reference signal, as mentioned in the CDD precoding process introduction above That is, the cyclic shift of the CDD precoding of each port used by the network device to send the first reference signal;

[0120] D. The cyclic shift ratio of CDD precoding of each port sending the first reference signal, as mentioned in the CDD precoding process introduction above That is, the cyclic shift ratio of CDD precoding of each port used by the network device to send the first reference signal;

[0121] E. Resource configuration information for the first reference signal may include scheduling information related to the reference signal. The terminal device may use this resource configuration information to receive and measure the first reference signal. In some embodiments, the resource configuration information includes at least the frequency domain density of the first reference signal, such as Δi mentioned in the CDD precoding process above.

[0122] In some embodiments, the first information may be a type of communication information, such as an indication message or a configuration message. For example, the first information may be carried in at least one of the following signalings:

[0123] RRC message; MAC CE; DCI.

[0124] For example, the network device sends first information to the terminal device through RRC signaling, MAC CE signaling, or DCI signaling to indicate configuration information of the first reference signal.

[0125] Step 202: The network device receives second information sent by the terminal device, and determines a first CDD precoder according to the second information.

[0126] The second information may be used to determine a first CDD precoding corresponding to the transmitted signal, that is, the network device may use the first CDD precoding to perform CDD precoding on the signal sent to the terminal device.

[0127] In some embodiments, the second information includes at least one of the following items determined by the terminal device according to the PDP measurement result of the first reference signal:

[0128] The number index of the port whose PDP measurement result meets the preset conditions; the cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; the cyclic shift ratio of CDD precoding of the port whose PDP measurement result meets the preset conditions.

[0129] For example, a port whose PDP measurement result is greater than a certain threshold may be considered as a port whose PDP measurement result meets preset conditions, or a port with the largest PDP may be selected as a port whose PDP measurement result meets preset conditions, and so on.

[0130] For this embodiment, the port in the second information fed back by the terminal device may be a target port that meets the requirements (such as maximum PDP) selected from all port information contained in the configuration information based on the PDP measurement result of the first reference signal, and the number index and / or cyclic shift and / or cyclic shift ratio of the target port are fed back to the network device, so that the network device can adopt the CDD precoding corresponding to the target port (that is, adopt the cyclic shift corresponding to the target port) to perform CDD precoding on the signal sent to the terminal device, and realize communication with the terminal device.

[0131] For example, the number of ports corresponding to the first reference signal is K=4, namely RS port 1, RS port 2, RS port 3, and RS port 4. The frequency domain density of the first reference signal is Δi=2, the number of Fourier sampling points NFFT=1024, and the cyclic shifts corresponding to these four ports are In this scenario, the terminal device calculates the PDP measurement result of the first reference signal, which can be specifically shown in Figure 3, which is a schematic diagram of delay power distribution. According to the power delay distribution diagram shown in Figure 3, the terminal device can determine when When the PDP is the largest, the relevant information of the RS port 1 can be sent to the network device, including the number index and / or cyclic shift and / or cyclic shift ratio of the RS port 1, so that the network device can adopt the CDD precoding corresponding to the RS port 1 (that is, adopt the cyclic shift corresponding to the RS port 1), perform CDD precoding on the signal sent to the terminal device, and communicate with the terminal device.

[0132] In some embodiments, the second information also includes the delay power value corresponding to the port whose PDP measurement result meets the preset conditions, so that the network device can comprehensively analyze whether to select the CDD precoding corresponding to the target port fed back by the terminal device.

[0133] In some embodiments, the second information may include at least one of the following:

[0134] The number index of each port sending the first reference signal and the corresponding PDP measurement result; the cyclic shift of CDD precoding of each port sending the first reference signal and the corresponding PDP measurement result; the cyclic shift ratio of CDD precoding of each port sending the first reference signal and the corresponding PDP measurement result.

[0135] In some embodiments, the second information may further include delay power values ​​corresponding to each port that sends the first reference signal.

[0136] For example, the terminal device can feed back the number indexes of all ports and the PDP measurement results corresponding to the number indexes to the network device, and the network device will choose which port to use the CDD precoding corresponding to. In addition, the delay power values ​​corresponding to all ports can also be fed back so that the network device can perform a comprehensive analysis.

[0137] For another example, the terminal device can also only feedback the number index of the target port whose PDP measurement results meet the requirements (such as the maximum PDP) to the network device, and the network device will decide whether to use the CDD precoding information corresponding to the target port; in addition, the delay power value corresponding to the target port can also be fed back so that the network device can perform a comprehensive analysis.

[0138] When the network device decides which CDD precoding information to use, it can make a comprehensive judgment based on the second information reported and fed back by the terminal device, and then determine the first CDD precoding corresponding to the transmitted signal, that is, use the first CDD precoding to perform CDD precoding on the signal subsequently sent to the terminal device.

[0139] In some embodiments, determining the first CDD precoder according to the second information includes at least one of the following:

[0140] a. Determine the number index of the port corresponding to the first CDD precoder;

[0141] b. determining a cyclic shift of the port CDD precoding corresponding to the first CDD precoding;

[0142] c. Determine a cyclic shift ratio of the port CDD precoding corresponding to the first CDD precoding.

[0143] For example, the network device uses the CDD precoding corresponding to port M (i.e., uses the cyclic shift corresponding to port M) based on the number index and / or cyclic shift and / or cyclic shift ratio of port M corresponding to the first CDD precoding, performs CDD precoding on the signal sent to the terminal device, and communicates with the terminal device, that is, executes the process shown in step 203.

[0144] Step 203: The network device sends a signal based on the first CDD precoding to communicate with the terminal device.

[0145] This embodiment uses the precoding design of CDD to precode the first reference signal for sending multiple candidate beams, and sends corresponding configuration information to the terminal device, so that the terminal device can simultaneously receive and measure multiple candidate beams according to the configuration information, thereby improving the feedback efficiency of the candidate beam measurement and solving the problem of long candidate beam measurement feedback time.

[0146] To illustrate the specific execution process of the network device, Figure 4 shows a flow chart of a communication processing method according to an embodiment of the present disclosure. When applied to the network device side, the method may include the following steps.

[0147] Step 301: The network device sends first information to the terminal device.

[0148] The first information is used to determine configuration information corresponding to a first reference signal, and the first reference signal is a reference signal based on CDD precoding.

[0149] In some embodiments of the present disclosure, the configuration information includes at least one of the following:

[0150] The number of ports sending the first reference signal; the serial index of each port sending the first reference signal; the cyclic shift of CDD precoding of each port sending the first reference signal; the cyclic shift ratio of CDD precoding of each port sending the first reference signal; and the frequency domain density of the first reference signal.

[0151] In some embodiments of the present disclosure, after sending the first information to the terminal device, the method further includes: receiving second information sent by the terminal device; determining a first CDD precoding based on the second information; and sending a signal to communicate with the terminal device based on the first CDD precoding.

[0152] In some embodiments of the present disclosure, the second information includes at least one of the following items determined by the terminal device according to a PDP measurement result of the first reference signal:

[0153] The number index of the port whose PDP measurement result meets the preset conditions; the cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; the cyclic shift ratio of CDD precoding of the port whose PDP measurement result meets the preset conditions.

[0154] In some embodiments of the present disclosure, the second information further includes a delay power value corresponding to a port whose PDP measurement result meets a preset condition.

[0155] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0156] Sending the number index of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift ratio of each port of CDD precoding of the first reference signal and the corresponding PDP measurement result.

[0157] In some embodiments of the present disclosure, the second information further includes delay power values ​​corresponding to each port that sends the first reference signal.

[0158] In some embodiments of the present disclosure, determining the first CDD precoding according to the second information includes at least one of the following:

[0159] Determine the number index of the port corresponding to the first CDD precoding; determine the cyclic shift of the CDD precoding of the port corresponding to the first CDD precoding; and determine the cyclic shift ratio of the CDD precoding of the port corresponding to the first CDD precoding.

[0160] In some embodiments of the present disclosure, the CDD precoding of the first reference signal is determined according to the second CDD precoding of the subcarrier at the frequency of the first reference signal.

[0161] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0162] in, represents the CDD precoding of the i-th subcarrier on the k-th port, represents the cyclic shift ratio of CDD precoding of the kth port, and j represents a complex unit, Δi represents the frequency domain density of the first reference signal.

[0163] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0164] in, represents the CDD precoding of the i-th subcarrier on the k-th port, NFFT represents the number of Fourier sampling points, represents the cyclic shift of CDD precoding of the kth port, and j represents a complex unit, Δi represents the frequency domain density of the first reference signal.

[0165] In some embodiments of the present disclosure, the first information is carried in at least one of the following signalings:

[0166] RRC message; MACCE; DCI.

[0167] For the description of the specific examples in this embodiment, please refer to the corresponding description of the embodiments in Figures 1 to 3, and will not be repeated here.

[0168] This embodiment uses the precoding design of CDD to precode the first reference signal for sending multiple candidate beams, and sends corresponding configuration information to the terminal device, so that the terminal device can simultaneously receive and measure multiple candidate beams according to the configuration information, thereby improving the feedback efficiency of the candidate beam measurement and solving the problem of long candidate beam measurement feedback time.

[0169] Figure 5 shows a flow chart of a communication processing method according to an embodiment of the present disclosure. As shown in Figure 5, the method is applied to the terminal device side and may include the following steps.

[0170] Step 401: The terminal device receives first information sent by the network device.

[0171] Step 402: The terminal device determines configuration information corresponding to the first reference signal based on the first information.

[0172] The first reference signal is a reference signal based on CDD precoding.

[0173] In some embodiments of the present disclosure, the configuration information includes at least one of the following:

[0174] The number of ports sending the first reference signal; the serial index of each port sending the first reference signal; the cyclic shift of CDD precoding of each port sending the first reference signal; the cyclic shift ratio of CDD precoding of each port sending the first reference signal; and the frequency domain density of the first reference signal.

[0175] In some embodiments of the present disclosure, the method further includes: sending second information to the network device, where the second information is used to determine a first CDD precoding; and receiving a signal sent by the network device based on the first CDD precoding.

[0176] In some embodiments of the present disclosure, the second information includes at least one of the following items determined by the terminal device according to a PDP measurement result of the first reference signal:

[0177] The number index of the port whose PDP measurement result meets the preset conditions; the cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; the cyclic shift ratio of CDD precoding of the port whose PDP measurement result meets the preset conditions.

[0178] In some embodiments of the present disclosure, the second information further includes a delay power value corresponding to a port whose PDP measurement result meets a preset condition.

[0179] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0180] Sending the number index of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift ratio of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result.

[0181] In some embodiments of the present disclosure, the second information further includes delay power values ​​corresponding to each port that sends the first reference signal.

[0182] In some embodiments of the present disclosure, the first CDD precoding includes at least one of the following:

[0183] The number index of the port corresponding to the first CDD precoding; the cyclic shift of the CDD precoding of the port corresponding to the first CDD precoding; and the cyclic shift ratio of the CDD precoding of the port corresponding to the first CDD precoding.

[0184] In some embodiments of the present disclosure, the CDD precoding of the first reference signal is determined according to the second CDD precoding of the subcarrier at the frequency of the first reference signal.

[0185] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0186] in, represents the CDD precoding of the i-th subcarrier on the k-th port, represents the cyclic shift ratio of CDD precoding of the kth port, and Δi represents the frequency domain density of the first reference signal.

[0187] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0188] in, represents the CDD precoding of the i-th subcarrier on the k-th port, NFFT represents the number of Fourier sampling points, represents the cyclic shift of CDD precoding of the kth port, and Δi represents the frequency domain density of the first reference signal.

[0189] In some embodiments of the present disclosure, the first information is carried in at least one of the following signalings:

[0190] RRC message; MAC CE; DCI.

[0191] For the description of the specific examples in this embodiment, please refer to the corresponding description of the embodiments in Figures 1 to 4, and will not be repeated here.

[0192] This embodiment uses the precoding design of CDD to precode the first reference signal for sending multiple candidate beams, and sends corresponding configuration information to the terminal device, so that the terminal device can simultaneously receive and measure multiple candidate beams according to the configuration information, thereby improving the feedback efficiency of the candidate beam measurement and solving the problem of long candidate beam measurement feedback time.

[0193] In the embodiments provided above, the methods provided in the embodiments of the present disclosure are described from the perspectives of network devices and terminal devices, respectively. To implement the various functions of the methods provided in the embodiments of the present disclosure, the terminal devices and network devices may include hardware structures and software modules, and implement the aforementioned functions in the form of hardware structures, software modules, or hardware structures and software modules. Certain of the aforementioned functions may be implemented in the form of hardware structures, software modules, or hardware structures and software modules.

[0194] Corresponding to the communication processing methods provided in the above-mentioned embodiments, the present disclosure also provides a communication processing device. Since the communication processing device provided in the embodiment of the present disclosure corresponds to the communication processing methods provided in the above-mentioned embodiments, the implementation method of the communication processing method is also applicable to the communication processing device provided in this embodiment and will not be described in detail in this embodiment.

[0195] Figure 6 is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure. As shown in Figure 6, the device may include: a sending module 51 configured to send first information to a terminal device; wherein the first information is used to determine configuration information corresponding to a first reference signal, where the first reference signal is a CDD precoded reference signal.

[0196] In some embodiments, the configuration information includes at least one of the following:

[0197] The number of ports sending the first reference signal; the serial index of each port sending the first reference signal; the cyclic shift of CDD precoding of each port sending the first reference signal; the cyclic shift ratio of CDD precoding of each port sending the first reference signal; and the frequency domain density of the first reference signal.

[0198] In some embodiments, the sending module 51 is further configured to receive second information sent by the terminal device; determine a first CDD precoding according to the second information; and send a signal based on the first CDD precoding to communicate with the terminal device.

[0199] In some embodiments, the second information includes at least one of the following items determined by the terminal device according to a delay power profile PDP measurement result of the first reference signal:

[0200] The number index of the port whose PDP measurement result meets the preset conditions; the cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; the cyclic shift ratio of CDD precoding of the port whose PDP measurement result meets the preset conditions.

[0201] In some embodiments, the second information further includes a delay power value corresponding to the port whose PDP measurement result meets a preset condition.

[0202] In some embodiments, the second information includes at least one of the following:

[0203] Sending the number index of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result; sending the cyclic shift ratio of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result.

[0204] In some embodiments, the second information further includes a delay power value corresponding to each port that sends the first reference signal.

[0205] In some embodiments, the first CDD precoding includes at least one of the following:

[0206] The number index of the port corresponding to the first CDD precoding; the cyclic shift of the CDD precoding of the port corresponding to the first CDD precoding; and the cyclic shift ratio of the CDD precoding of the port corresponding to the first CDD precoding.

[0207] In some embodiments, the CDD precoding of the first reference signal is determined based on the second CDD precoding of the subcarrier at the frequency of the first reference signal.

[0208] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0209] in, represents the CDD precoding of the i-th subcarrier on the k-th port, represents the cyclic shift ratio of CDD precoding of the kth port, and j represents a complex unit, Δi represents the frequency domain density of the first reference signal.

[0210] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0211] in, represents the CDD precoding of the i-th subcarrier on the k-th port, NFFT represents the number of Fourier sampling points, represents the cyclic shift of CDD precoding of the kth port, and j represents a complex unit, Δi represents the frequency domain density of the first reference signal.

[0212] In some embodiments, the first information is carried in at least one of the following signalings:

[0213] RRC message; MACCE; DCI.

[0214] This embodiment uses the precoding design of CDD to precode the first reference signal for sending multiple candidate beams, and sends corresponding configuration information to the terminal device, so that the terminal device can simultaneously receive and measure multiple candidate beams according to the configuration information, thereby improving the feedback efficiency of the candidate beam measurement and solving the problem of long candidate beam measurement feedback time.

[0215] Figure 7 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present disclosure. As shown in Figure 7, the device may include: a receiving module 61 configured to receive first information sent by a network device; and determine configuration information corresponding to a first reference signal based on the first information, wherein the first reference signal is a reference signal based on CDD precoding.

[0216] In some embodiments, the configuration information includes at least one of the following:

[0217] The number of ports sending the first reference signal; the serial index of each port sending the first reference signal; the cyclic shift of CDD precoding of each port sending the first reference signal; the cyclic shift ratio of CDD precoding of each port sending the first reference signal; and the frequency domain density of the first reference signal.

[0218] In some embodiments, the receiving module 61 is further configured to send second information to the network device, where the second information is used to determine the first CDD precoding; and receive a signal sent by the network device based on the first CDD precoding.

[0219] In some embodiments of the present disclosure, the second information includes at least one of the following items determined by the terminal device according to a PDP measurement result of the first reference signal:

[0220] The number index of the port whose PDP measurement result meets the preset conditions; the cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; the cyclic shift ratio of CDD precoding of the port whose PDP measurement result meets the preset conditions.

[0221] In some embodiments, the second information further includes a delay power value corresponding to the port whose PDP measurement result meets a preset condition.

[0222] In some embodiments, the second information includes at least one of the following:

[0223] a serial index of each port that sends the first reference signal and a corresponding PDP measurement result;

[0224] Sending the cyclic shift of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result;

[0225] The cyclic shift ratio of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result are sent.

[0226] In some embodiments, the second information further includes a delay power value corresponding to each port that sends the first reference signal.

[0227] In some embodiments, the first CDD precoding includes at least one of the following:

[0228] The number index of the port corresponding to the first CDD precoding; the cyclic shift of the CDD precoding of the port corresponding to the first CDD precoding; and the cyclic shift ratio of the CDD precoding of the port corresponding to the first CDD precoding.

[0229] In some embodiments, the CDD precoding of the first reference signal is determined based on the second CDD precoding of the subcarrier at the frequency of the first reference signal.

[0230] In some embodiments, the second CDD precoding satisfies:

[0231] in, represents the CDD precoding of the i-th subcarrier on the k-th port, represents the cyclic shift ratio of CDD precoding of the kth port, and Δi represents the frequency domain density of the first reference signal.

[0232] In some embodiments of the present disclosure, the second CDD precoding satisfies:

[0233] in, represents the CDD precoding of the i-th subcarrier on the k-th port, NFFT represents the number of Fourier sampling points, represents the cyclic shift of CDD precoding of the kth port, and Δi represents the frequency domain density of the first reference signal.

[0234] In some embodiments, the first information is carried in at least one of the following signalings:

[0235] RRC message; MAC CE; DCI.

[0236] This embodiment uses the precoding design of CDD to precode the first reference signal for sending multiple candidate beams, and sends corresponding configuration information to the terminal device, so that the terminal device can simultaneously receive and measure multiple candidate beams according to the configuration information, thereby improving the feedback efficiency of the candidate beam measurement and solving the problem of long candidate beam measurement feedback time.

[0237] Please refer to Figure 8, which is a schematic diagram of the structure of a communication device 1800 provided in this embodiment. Communication device 1800 can be a network device or a user device, or a chip, chip system, or processor that supports the network device to implement the above method. It can also be a chip, chip system, or processor that supports the user device to implement the above method. This device can be used to implement the method described in the above method embodiment. For details, please refer to the description of the above method embodiment.

[0238] The communication device 1800 may include one or more processors 1801. The processor 1801 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0239] Optionally, the communication device 1800 may further include one or more memories 1802, on which a computer program 1804 may be stored. The processor 1801 executes the computer program 1804, causing the communication device 1800 to perform the method described in the above method embodiment. Optionally, the memory 1802 may also store data. The communication device 1800 and the memory 1802 may be provided separately or integrated together.

[0240] Optionally, the communication device 1800 may further include a transceiver 1805 and an antenna 1806. The transceiver 1805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. The transceiver 1805 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0241] Optionally, the communication device 1800 may further include one or more interface circuits 1807. The interface circuit 1807 is configured to receive code instructions and transmit the instructions to the processor 1801. The processor 1801 executes the code instructions to enable the communication device 1800 to perform the method described in the above method embodiment.

[0242] In one implementation, processor 1801 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0243] In one implementation, processor 1801 may store a computer program 1803. Computer program 1803, when executed on processor 1801, enables communication device 1800 to perform the method described in the above method embodiment. Computer program 1803 may be embedded in processor 1801, in which case processor 1801 may be implemented by hardware.

[0244] In one implementation, the communication device 1800 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in the present disclosure can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0245] The communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device may not be limited to FIG8 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0246] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0247] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0248] (3) ASIC, such as modem;

[0249] (4) Modules that can be embedded in other devices;

[0250] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0251] (6)Others, etc.

[0252] If the communication device can be a chip or a chip system, please refer to the schematic diagram of the chip structure shown in Figure 9. The chip shown in Figure 9 includes a processor 1901 and an interface 1902. The number of processors 1901 can be one or more, and the number of interfaces 1902 can be multiple.

[0253] Optionally, the chip further includes a memory 1903, which is used to store necessary computer programs and data.

[0254] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functionality for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present disclosure.

[0255] The present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0256] The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0257] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. Available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs)).

[0258] Those skilled in the art will understand that the various numerical numbers such as first and second involved in the present disclosure are only for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure, and also indicate the order of precedence.

[0259] The at least one in the present disclosure can also be described as one or more, and the multiple can be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0260] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and / or device (e.g., a magnetic disk, an optical disk, a memory, a programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0261] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.

[0262] Computer systems may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The client and server relationship arises through computer programs running on the respective computers and having a client-server relationship to each other.

[0263] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of this disclosure can be achieved. This is not limited herein.

[0264] In addition, it should be understood that the various embodiments described in the present disclosure may be implemented independently or in combination with other embodiments where the solution permits.

[0265] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments applied for herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0266] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0267] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A communication processing method, characterized in that: The method is performed by a network device, and the method includes: Sending first information to a terminal device; The first information is used to determine configuration information corresponding to a first reference signal, and the first reference signal is a reference signal based on cyclic delay diversity (CDD) precoding.

2. The method according to claim 1, characterized in that The configuration information includes at least one of the following: the number of ports that send the first reference signal; a serial index of each port that sends the first reference signal; Sending a cyclic shift of CDD precoding of each port of the first reference signal; a cyclic shift ratio of CDD precoding of each port sending the first reference signal; The frequency domain density of the first reference signal.

3. The method according to any one of claims 2, characterized in that The method further comprises: receiving second information sent by the terminal device; Determine a first CDD precoding according to the second information; A signal is sent based on the first CDD precoding to communicate with the terminal device.

4. The method according to claim 3, characterized in that The second information includes at least one of the following items determined by the terminal device according to a delay power profile PDP measurement result of the first reference signal: The serial number index of the port whose PDP measurement result meets the preset conditions; The cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; The PDP measurement result satisfies the cyclic shift ratio of the port CDD precoding for which the preset condition is met.

5. The method according to claim 4, characterized in that The second information also includes a delay power value corresponding to the port whose PDP measurement result meets the preset condition.

6. The method according to claim 3, characterized in that The second information is at least one of the following items determined by the terminal device according to the PDP measurement result of the first reference signal: The serial number index of each port sending the first reference signal and the corresponding PDP measurement result; Sending the cyclic shift of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result; The cyclic shift ratio of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result are sent.

7. The method according to claim 6, characterized in that The second information also includes delay power values ​​corresponding to each port that sends the first reference signal.

8. The method according to any one of claims 3 to 7, characterized in that The determining the first CDD precoding information according to the second information includes at least one of the following: Determine a number index of a port corresponding to the first CDD precoding information; Determine a cyclic shift of the port CDD precoding corresponding to the first CDD precoding information; Determine a cyclic shift ratio of the port CDD precoding corresponding to the first CDD precoding information.

9. The method according to any one of claims 1 to 8, characterized in that The CDD precoding of the first reference signal is determined according to the second CDD precoding of the subcarrier at the frequency where the first reference signal is located.

10. The method according to claim 9, characterized in that The second CDD precoding satisfies: in, is the CDD precoding of the i-th subcarrier on the k-th port, is the cyclic shift ratio of CDD precoding of the kth port, and j is a complex unit, Δi is the frequency domain density of the first reference signal.

11. The method according to claim 9, characterized in that The second CDD precoding information satisfies: in, is the CDD precoding of the i-th subcarrier on the k-th port, NFFT is the number of Fourier sampling points, is the cyclic shift of CDD precoding of the kth port, and j is a complex unit, Δi is the frequency domain density of the first reference signal.

12. The method according to any one of claims 1 to 11, characterized in that The first information is carried in at least one of the following signalings: Radio Resource Control RRC message; Media access layer control element MAC CE; Downlink control information DCI.

13. A communication processing method, characterized in that: The method is performed by a terminal device, and the method includes: receiving first information sent by a network device; Configuration information corresponding to a first reference signal is determined according to the first information, wherein the first reference signal is a reference signal based on cyclic delay diversity (CDD) precoding.

14. The method according to claim 13, characterized in that The configuration information includes at least one of the following: the number of ports that send the first reference signal; a serial index of each port that sends the first reference signal; Sending a cyclic shift of CDD precoding of each port of the first reference signal; a cyclic shift ratio of CDD precoding of each port sending the first reference signal; The frequency domain density of the first reference signal.

15. The method according to claim 14, characterized in that The method further comprises: Sending second information to the network device, where the second information is used to determine a first CDD precoding; A signal sent by the network device based on the first CDD precoding is received.

16. The method according to claim 15, characterized in that The second information includes at least one of the following items determined by the terminal device according to a delay power profile PDP measurement result of the first reference signal: The serial number index of the port whose PDP measurement result meets the preset conditions; The cyclic shift of CDD precoding of the port whose PDP measurement result meets the preset conditions; The PDP measurement result satisfies the cyclic shift ratio of the port CDD precoding for which the preset condition is met.

17. The method according to claim 16, characterized in that The second information also includes a delay power value corresponding to the port whose PDP measurement result meets the preset condition.

18. The method according to claim 15, characterized in that The second information includes at least one of the following items determined by the terminal device according to the PDP measurement result of the first reference signal: The serial number index of each port sending the first reference signal and the corresponding PDP measurement result; Sending the cyclic shift of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result; The cyclic shift ratio of CDD precoding of each port of the first reference signal and the corresponding PDP measurement result are sent.

19. The method according to claim 18, characterized in that The second information also includes delay power values ​​corresponding to each port that sends the first reference signal.

20. The method according to any one of claims 15 to 19, characterized in that The first CDD precoding includes at least one of the following: The serial number index of the port corresponding to the first CDD precode; A cyclic shift of a port CDD precoding corresponding to the first CDD precoding; The cyclic shift ratio of the port CDD precoding corresponding to the first CDD precoding.

21. The method according to any one of claims 13 to 20, characterized in that The CDD precoding of the first reference signal is determined according to the second CDD precoding of the subcarrier at the frequency where the first reference signal is located.

22. The method according to claim 21, characterized in that The second CDD precoding satisfies: in, is the CDD precoding of the i-th subcarrier on the k-th port, is the cyclic shift ratio of CDD precoding of the kth port, and Δi is the frequency domain density of the first reference signal.

23. The method according to claim 21, characterized in that The second CDD precoding satisfies: in, is the CDD precoding of the i-th subcarrier on the k-th port, NFFT is the number of Fourier sampling points, is the cyclic shift of CDD precoding of the kth port, and Δi is the frequency domain density of the first reference signal.

24. The method according to any one of claims 13 to 23, characterized in that The first information is carried in at least one of the following signalings: Radio Resource Control RRC message; Media access layer control element MAC CE; Downlink control information DCI.

25. A network device, characterized in that: include: The sending module is configured to send first information to the terminal device; wherein the first information is used to determine configuration information corresponding to a first reference signal, and the first reference signal is a reference signal based on cyclic delay diversity CDD precoding.

26. A terminal device, characterized in that: include: A receiving module, configured to receive first information sent by a network device; Configuration information corresponding to a first reference signal is determined according to the first information, wherein the first reference signal is a reference signal based on cyclic delay diversity (CDD) precoding.

27. A communication processing system, characterized in that: include: Network equipment and terminal equipment; The network device performs the method according to any one of claims 1 to 12; The terminal device executes the method according to any one of claims 13 to 24.

28. A communication device, wherein: include: Transceiver; Memory; A processor is connected to the transceiver and the memory, respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer executable instructions on the memory, and can implement any one of the methods of claims 1 to 24.

29. A computer storage medium, wherein: The computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the method described in any one of claims 1 to 24 can be implemented.

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