Signal processing method and device, terminal and network side equipment

Abstract

The invention discloses a signal processing method and device, a terminal and network side equipment, and belongs to the technical field of communication, the signal processing method comprises the steps that the terminal executes a first operation, and the first operation comprises at least one of the following items: sending a first signal to the network side equipment, at least one of a sending resource, a sending beam and sending power of the first signal is associated with first downlink signal combination information; and receiving a second signal sent by network side equipment based on first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a signal processing method, apparatus, terminal, and network-side equipment. Background Technology

[0002] In related technologies, the transmission signal during the random access process of a terminal is quasi-co-located (QCL) with a certain Synchronization Signal and PBCH block (SSB), and the uplink signal transmission power is calculated based on a certain SSB. In cell-free networks, due to the dense deployment of Transmit / Receive Points (TRPs), in some scenarios, the terminal may receive or detect multiple downlink signals (such as SSB signals). The terminal can still only transmit uplink signals based on one of the downlink signals, and the terminal cannot fully utilize multiple downlink signals to further improve access reliability and uplink signal transmission performance. Or, in some scenarios, when the terminal needs to trigger signal transmission within the coverage area of ​​multiple downlink signals, the terminal needs to perform multiple signal transmissions, resulting in large terminal resource overhead and transmission energy consumption. Summary of the Invention

[0003] This application provides a signal processing method, apparatus, terminal, and network-side device, which can solve the problems in related technologies where the terminal cannot fully utilize multiple downlink signals, resulting in poor reliability of the terminal during random access, and the terminal needs to send signals multiple times, resulting in high terminal resource overhead.

[0004] Firstly, a signal processing method is provided, executed by a terminal, the method comprising:

[0005] The terminal performs a first operation, which includes at least one of the following:

[0006] Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information;

[0007] The second signal sent by the network-side device is received based on the first quasi-co-located QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

[0008] Secondly, a signal processing method is provided, executed by a network-side device, the method comprising:

[0009] The network-side device performs a second operation, which includes at least one of the following:

[0010] The receiving terminal sends a first signal, and the network-side device receives at least one of the receiving resources and receiving beams of the first signal and associates them with the first downlink signal combination information;

[0011] A second signal is sent to the terminal based on the first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

[0012] Thirdly, a signal processing apparatus is provided, comprising:

[0013] A first execution module is configured to perform a first operation, the first operation including at least one of the following:

[0014] Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information;

[0015] The second signal sent by the network-side device is received based on the first QCL information, and the first QCL information is associated with the first downlink signal combination information.

[0016] Fourthly, a signal processing apparatus is provided, comprising:

[0017] The second execution module is configured to perform a second operation, the second operation including at least one of the following:

[0018] The receiving terminal sends a first signal, and the device receives at least one of the receiving resources and receiving beams of the first signal and associates it with first downlink signal combination information;

[0019] A second signal is sent to the terminal based on the first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

[0020] Fifthly, a signal processing apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0021] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0022] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is configured to perform at least one of the following:

[0023] Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information;

[0024] The second signal sent by the network-side device is received based on the first QCL information, and the first QCL information is associated with the first downlink signal combination information.

[0025] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0026] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is configured to perform at least one of the following:

[0027] The receiving terminal sends a first signal, and the network-side device receives at least one of the receiving resources and receiving beams of the first signal and associates them with the first downlink signal combination information;

[0028] A second signal is sent to the terminal based on the first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

[0029] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0030] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0031] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0032] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0033] In this embodiment, the terminal sends a first signal to the network-side device and / or receives a second signal sent by the network-side device based on the first QCL information. At least one of the transmission resources, transmission beam, and transmission power of the first signal, as well as the first QCL information, are associated with first downlink signal combination information. Therefore, when the terminal receives or detects multiple downlink signals, it can use these multiple downlink signals or a portion of them as a first downlink signal combination. This first downlink signal combination is then used as a whole to determine at least one of the transmission resources, transmission beam, and transmission power of the first signal, and / or to determine the first QCL information, instead of based on a single downlink signal. This eliminates the need for the terminal to send the first signal multiple times, effectively saving terminal energy and resource consumption. Alternatively, it helps the terminal fully utilize multiple downlink signals to further improve access reliability and uplink signal transmission performance, thereby improving terminal communication quality and efficiency. Attached Figure Description

[0034] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0035] Figure 2 This is one of the flowcharts of a signal processing method provided in the embodiments of this application;

[0036] Figure 3a This is one of the schematic diagrams illustrating a possible application scenario for the signal processing method provided in this application embodiment;

[0037] Figure 3b This is a second schematic diagram illustrating a scenario where the signal processing method provided in this application can be applied;

[0038] Figure 3c This is a third schematic diagram illustrating a scenario where the signal processing method provided in this application can be applied;

[0039] Figure 3d This is a second flowchart of a signal processing method provided in an embodiment of this application;

[0040] Figure 3e This is the third flowchart of a signal processing method provided in the embodiments of this application;

[0041] Figure 3f This is the fourth flowchart of a signal processing method provided in the embodiments of this application;

[0042] Figure 4 This is the fifth flowchart of a signal processing method provided in the embodiments of this application;

[0043] Figure 5 This is a structural diagram of a signal processing device provided in an embodiment of this application;

[0044] Figure 6 This is a structural diagram of another signal processing device provided in the embodiments of this application;

[0045] Figure 7 This is a structural diagram of a communication device provided in an embodiment of this application;

[0046] Figure 8 This is a structural diagram of a terminal provided in an embodiment of this application;

[0047] Figure 9 This is a structural diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0049] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0050] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0051] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0052] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0053] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0054] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0055] To better understand the technical solution of this application, the relevant concepts that may be involved in the embodiments of this application are explained below.

[0056] Cell-free, massively multi-input multiple-output (MIMO) networks:

[0057] Cell-free massive MIMO (MMIMO) systems break away from the traditional cell concept in MMIMO systems. Instead of being deployed at a single macro base station, a large number of antennas are distributed across a wide area, and UEs are similarly distributed across this area. These antennas are called Transmit-Receive Points (TRPs) or Access Points (APs). Theoretically, each UE can communicate with every TRP. With the help of a fronthaul network and a Central Processing Unit (CPU), the geographically dispersed TRPs can collectively serve a smaller number of UEs. The CPU uses channel statistics for joint detection. This technology holds promise for next-generation indoor and hotspot coverage scenarios, such as smart factories, train stations, shopping malls, stadiums, subways, hospitals, community centers, and university campuses.

[0058] Cell search and synchronization process in NR technology:

[0059] In existing 5G NR technology, to achieve downlink synchronization, the UE needs to obtain the frequency point of the access carrier by searching for a synchronization block (SS / PBCH Block, SSB). Since NR has a wide spectrum range, to reduce the complexity of the search, the UE performs SSB searches at certain frequency intervals specified in the protocol; this frequency interval is called the synchronization raster. The UE detects the received power (SS Reference Signal Received Power, SS-RSRP) of the synchronization signal at the corresponding frequency point according to the synchronization raster, and selects any SSB whose SS-RSRP is higher than the threshold rsrp-ThresholdSSB. By demodulating the primary synchronization signal (PSS), secondary synchronization signal (SSS), and physical broadcast channel (PBCH) signals in the selected SSB, the UE completes cell selection and synchronization with the base station, and then performs random access.

[0060] Random access process:

[0061] In the prior art, there are procedures that include contention-based random access and non-contention-based random access.

[0062] In the contention-based 4-step Random Access Channel (RACH) procedure, the UE first sends Message 1 (MSG1) to the network, containing a preamble. Upon detecting the preamble, the network sends MSG2 / Random Access Response (RAR) messages, containing the preamble number detected by the network and the uplink radio resources allocated to the UE for sending MSG3. Upon receiving MSG2, the UE confirms that at least one of the preamble numbers carried in MSG2 matches the number of its own preamble. Then, according to the resources indicated by the RAR, the UE sends MSG3 containing contention resolution information. Upon receiving MSG3, the network sends MSG4 containing contention resolution information. Upon receiving MSG4, the UE confirms that the resolution information matches what it sent in MSG3, thus completing the 4-step random access procedure.

[0063] The network includes uplink grant (UL grant) information in the RAR to indicate MSG3 PUSCH scheduling information, and also includes RAPID (RACH preamble ID), Temporary Cell Radio Network Temporary Identifier (TC-RNTI), Timing Advance (TA), and other information. If the network does not receive the MSG3 Physical Uplink Shared Channel (PUSCH), it can schedule retransmission of the MSG3 PUSCH in the Physical Downlink Control Channel (PDCCH) scrambled with TC-RNTI.

[0064] In contention-based random access procedures, different UEs randomly select a preamble for transmission. This means different UEs might select the same preamble on the same time-frequency radio resource (RACH Occasion, RO resource), a situation known as UE preamble conflict. In this case, different UEs will receive the same RAR, and will then transmit MSG3 PUSCH according to the scheduling information in the RAR UL grant. Repetitive transmission of MSG3 PUSCH is not supported in Rel-15 / 16 random access. The network can only resolve one UE-transmitted PUSCH (containing contention resolution information) on a single MSG3 PUSCH scheduling resource. Therefore, the network will include the contention resolution information received in MSG3 in MSG4. If the contention resolution information received by the UE in MSG4 matches the contention resolution information transmitted by the UE in MSG3 PUSCH, the UE considers the contention resolution successful. If they do not match, the contention resolution is considered unsuccessful.

[0065] If contention resolution fails, the UE will reselect RACH transmission resources, transmit Msg1, and attempt the next random access attempt.

[0066] Uplink power control:

[0067] UL power control mainly includes the transmission power of PUSCH, Physical uplink control channel (PUCCH), Sounding Reference Signal (SRS), and Physical Random Access Channel (PRACH).

[0068] (1) PUSCH power control:

[0069]

[0070] The above formula is for calculating PUSCH power. PUSCH power is determined by the smaller of two values. The meanings of some of the parameters are as follows:

[0071] ①i: PUSCH / PUCCH / SRS / PRACH transmission timing i, determined by the time slot index within the system frame (SFN). The first symbol s and multiple consecutive symbols L within that time slot are determined. This corresponds to the PUSCH transmission timing i.

[0072] ②j: Parameter set configuration index.

[0073] j=0 represents the uplink power control (PUSCH) carrying Msg3 (i.e., 4-step random access, 4-step RA, also known as Type-1 random access in the protocol) or MsgA (i.e., 2-step random access, 2-step RA, also known as Type-2 random access in the protocol);

[0074] j=1 represents the UL power control (PUSCH) during ConfiguredGrantConfig configuration;

[0075] j from 2 to J represents the power control under normal circumstances.

[0076] ③q d : Index of the reference signal used for downlink path loss estimation. The reference signal can be an SSB or a Channel State Information Reference Signal (CSI-RS).

[0077] ④l: PUSCH power control adjustment state.

[0078] ⑤b,f,c: Parameter b corresponds to the UL bandwidth part (BWP) index, f corresponds to the carrier index, and c corresponds to the serving cell index.

[0079] ⑥P CMAX,f,c(i) The subscripts are f and c, which correspond to the power parameters at the carrier level;

[0080] ⑦P O_PUSCH,b,f,c The subscripts b, f, and c correspond to the power parameters at the BWP level, that is, the power parameters corresponding to UL BWP indexv. P O_PUSCH,b,f,c (j) via P O_NOMINAL,PUSCH,f,c (j) and P O_UE_PUSCH,b,f,c (j) is obtained by summing.

[0081] When j = 0, it represents the case of Msg3 (4-step RA / Type-1 RA) or MsgA (2-step RA / Type-2 RA), where:

[0082] P O_UE_PUSCH,b,f,c (0) = 0, P O_NOMINAL,PUSCH,f,c (0)=P O_PRE +Δ PREAMBLE,Msg3 ,

[0083] Where P O_PRE As indicated by the preambleReceivedTargetPower parameter, Δ PREAMBLE,Msg3 Indicated by the msg3-DeltaPreamble parameter, the default value is 0.

[0084] If it is a two-step RACH, the power parameters corresponding to transmitting MsgA are:

[0085] P O_UE_PUSCH,b,f,c (0) = 0, P O_NOMINAL_PUSCH,f,c (0)=P O_PRE +Δ MsgA_PUsCH ,

[0086] Where P O_PRE The value Δ is indicated by the msgA-preambleReceivedTargetPower parameter (or by preambleReceivedTargetPower if msgA-preambleReceivedTargetPower is not available). MsgA_PUSCH As indicated by the msgA-DeltaPreamble parameter, the default value is Δ. MsgA_PUSCH =Δ PREAMBLE_Msg3 .

[0087] When j=1, it represents the PUSCH power configured in ConfiguredGrantConfig. Where P... O_NOMINAL,PUSCH,f,c (1) Indicated by the p0-NominalWithoutGrant parameter, the default value is P. O_NOMINAL,PUSCH,f,c (1) = P O_NOMINAL,PUSCH,f,c (0); PO_UE_PUSCH,b,f,c (1) The value is the p0 value in p0-PUSCH-Alpha of the ConfiguredGrantConfig parameter.

[0088] j∈{2,…,j-1}=S J When, it represents the PUSCH power control under normal conditions. Where P... O_NOMINAL,PUSCH,f,c (j) Indicated by the p0-NominalWithoutGrant parameter, the default is P. O_NOMINAL,PUSCH,f,c (j)=P O_NOMINAL,PUSCH,f,c (0); P O_UE_PUSCH,b,f,c (j) takes the value of p0 corresponding to p0-PUSCH-AlphaSetId in the P0-PUSCH-AlphaSet parameter.

[0089] ⑧PL b,f,c (q d The path loss is calculated by subtracting the measured and higher-layer filtered RSRP from the referenceSignalPower. The network will configure a signal for the UE to calculate the path loss. This signal can be CSI-RS or SSB. If periodic CSI-RS reception is not configured, referenceSignalPower = ss-PBCH-Blockpower; if periodic CSI-RS is configured, referenceSignalPower = ss-PBCH-Blockpower or powerControlOffsetSS, where powerControlOffsetSS is the power offset value of CSI-RS relative to SSB, and the default value is powerControlOffsetSS = 0.

[0090] (2) PRACH power control

[0091] The formula for calculating the PRACH transmit power is (refer to Section 7.4 of Protocol 38.213):

[0092] P PRACH,b,f,c (i)=min{P CMAX,f,c (i),P PRACH,target,f,c +PL b,f,c [dBm]

[0093] Among them, P CMAX,f,c (i) is the maximum transmission power configured for the UE on carrier f of the serving cell C in the transmission of occasion i (the maximum transmission power of the UE is 23dBm); P PRACH,target,f,cIt is the PRACH target received power PREAMBLE_RECEIVED_TARGET_POWER on carrier f on serving cell C; PL b,f,c It is the path loss of the carrier f of the active UL BWP b of the DL RS associated with the PRACH transmission on the active DL BWP of the serving cell C, and PL b,f,c Equals referenceSignalPower (in dB) - higher layer filtered RSRP (in dBm, RRC filtering).

[0094] The UE's initial transmit power is primarily related to two factors: the base station's expected initial receive power (sensitivity) and the path loss between the base station and the UE. The base station informs the UE in advance of the initial receive power (preamble InitialReceived Target Power in LTE, preamble Received Target Power in NR) and the reference signal transmit power (reference signal power in LTE, SS PBCH-Block Power (SSB) and powerControl Offset SS (for CSI-RS) in NR). The UE, combined with the actual measured reference signal receive power, can then calculate the path loss (reference signal transmit power – reference signal receive power) and the initial transmit power (base station initial receive power + path loss).

[0095] In NR, due to the elimination of CRS (reducing always-on signal overhead), the reference signal measured by the UE is either SSB or CSI-RS. In LTE, path loss is denoted as PL. c In NR, due to the introduction of the concept of Bandwidth Part (BWP), path loss is denoted as PL. b,f,c (b represents BWP, f represents carrier, and c represents cell).

[0096] In NR, the mechanism for MSG1 power boosting is similar to that in LTE, but with slight differences. In NR, the PRACH (Occasion) sent by the UE for MSG1 is associated with the SSB beam. If the UE reselects RA resources and chooses the same SSB beam or CSI-RS beam (and does not receive a notification from the underlying layer to pause power boosting), the transmit power will be boosted when MSG1 is retransmitted. If the UE chooses a different SSB beam or CSI-RS beam, the transmit power will not be boosted this time.

[0097] The preamble signal of PRACH is configured with pPRAcH，target Similar to p0, α is fixed at 1. If the PRACH transmitted in this configuration does not receive a Random Access Response (RAR), the UE will perform power ramping until the power reaches P. CMAX Or until PRACH receives the RAR.

[0098] In cell-free networks, due to dense TRP deployment, the UE may receive multiple good SSB signals, or when the SSB beam is sparse, the UE may detect that two adjacent SSBs are both good. The terminal then needs to calculate the uplink signal transmission power or determine the QCL relationship based on each SSB signal, resulting in significant terminal overhead. To address these issues, this application provides a signal processing method.

[0099] It should be noted that the TRP or TRP set mentioned in this application can be a TRP or TRP set associated with a specific signal, or a TRP or TRP set associated with a certain type or group of reference signals. The TRP can also be generalized to a repeater / Timing Advance Group (TAG) / cell (such as a small cell in a non-terrestrial network (NTN)) / Integrated Access and Backhaul (IAB) / beam / QCL assumption / Transmission Configuration Indicator state (TCI state) or other signal-associated transmission units for a specific purpose. The TRP mentioned in this invention can also correspond to a carrier / carrier group, an SSB / SSB group, a Bandwidth Part (BWP) / BWP group, a frequency resource / frequency resource group, or a certain transmission mode.

[0100] The SSB described in this application can also be called any module that includes at least one of a synchronization signal, a broadcast signal, a physical broadcast channel (PBCH), a downlink broadcast channel for other system messages, and a control channel. The SSB can also be other reference signals, such as CSI-RS, Tracking Reference Signal (TRS), Positioning Reference Signal (PRS), Phase-tracking Reference Signal (PTRS), Demodulation Reference Signal (DMRS), etc.

[0101] The SSB combination described in this application, also called an SSB set or SSB group, represents a collection of SSBs. The SSBs included in the SSB combination can be one type of SSB (e.g., an SSB for a specific scenario or an SSB that meets a specific requirement), or multiple types of SSBs. It can also include only first-level SSBs, only second-level SSBs, or both first-level and second-level SSBs.

[0102] The message 3 (Msg3) described in this application can refer to any possible uplink signal sent by the terminal before successfully accessing the network and after successfully receiving the downlink signal sent by the network side for the first time, or any possible uplink signal sent by the terminal after successfully receiving the downlink signal sent by the network side for the first time during random access in other scenarios.

[0103] The Msg4 / B associated PUCCH or Msg4 / B PUCCH mentioned in this application can refer to any possible uplink signal sent by the terminal before successfully accessing the network, after receiving (not necessarily successfully receiving) a downlink signal sent by the network side that requires the terminal to provide an acknowledgment (ACK) or a negative acknowledgment (NACK), or any possible uplink signal sent by the terminal after receiving a downlink signal sent by the network side that requires the terminal to provide an ACK / NACK during random access in other scenarios, or a PUCCH sent on public PUCCH resources.

[0104] The signal processing method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0105] Please refer to Figure 2 , Figure 2This is one of the flowcharts of a signal processing method provided in an embodiment of this application, and the method is applied to a terminal. For example... Figure 2 As shown, the method includes the following steps:

[0106] Step 201: The terminal performs a first operation, which includes at least one of the following:

[0107] Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information;

[0108] The second signal sent by the network-side device is received based on the first QCL information, and the first QCL information is associated with the first downlink signal combination information.

[0109] It should be noted that the first downlink signal combination in the embodiments of this application can also be called the first downlink signal set or the first downlink signal group, that is, a set composed of downlink signals. The downlink signals can be, but are not limited to, signals such as SSB, CSI-RS, TRS, PRS, PTRS, and Demodulation Reference Signal (DMRS). The SSB can also include at least one of the following: synchronization signal, broadcast signal, PBCH, other system messages, downlink broadcast channel and its control channel.

[0110] The first downlink signal combination information may refer to information associated with the first downlink signal combination, including but not limited to: the transmit beam / receive beam of the first downlink signal combination, the downlink signals included in the first downlink signal combination (i.e., which downlink signals are included), and the measurement results of each downlink signal in the first downlink signal combination under the first measurement metric.

[0111] In some implementations, the first operation includes the terminal sending a first signal to a network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information.

[0112] Optionally, the transmission power of the first signal is determined based on the first downlink signal combination. For example, the terminal determines the transmission power of the first signal based on at least one of the following information: path loss, target received power, power offset, maximum transmission power, power level, etc. of the first downlink signal combination.

[0113] Optionally, the transmission beam of the first signal is determined based on the first downlink signal combination, for example, the transmission beam of the first signal corresponds to the reception beam of the first downlink signal combination;

[0114] Optionally, the transmission resources of the first signal are determined based on the first downlink signal combination. For example, the terminal determines the transmission resources of the signal based on the resources associated with the first downlink signal combination.

[0115] In this embodiment, when a terminal receives multiple downlink signals, it can determine the transmission resources and / or transmission beam and / or transmission power of a first signal based on a first downlink signal combination including the multiple downlink signals, and then transmit the first signal. In this way, when the terminal receives multiple downlink signals, it does not need to calculate the transmission resources and / or transmission beam and / or transmission power of the first signal based on a single downlink signal, and therefore does not need to transmit the first signal multiple times. This effectively saves terminal power consumption and resource overhead, and helps improve communication quality.

[0116] It should be noted that the term "multiple" in this application includes two or more, and the first downlink signal combination includes multiple downlink signals, that is, the first downlink signal combination includes at least two downlink signals.

[0117] Optionally, the first signal includes at least one of the following:

[0118] Physical Random Access Channel (PRACH) signal;

[0119] Physical Uplink Shared Channel (PUSCH) signal;

[0120] Physical Uplink Control Channel (PUCCH) signal;

[0121] Wake-up signal (WUS);

[0122] Sounding Reference Signal (SRS).

[0123] It should be noted that different first signals may carry different information.

[0124] For example, when the first signal is a PRACH signal, the first signal can carry Msg1 or MsgA information.

[0125] When the first signal is a PUSCH signal, the first signal can carry Msg3 or uplink data information, wherein the uplink data information includes at least one of the following: ordinary uplink data information, configured grant (CG) uplink data information, dynamic grant (DG) uplink data information, and uplink data information for L1 / L2-triggered mobility (LTM) for layer 1 / layer 2 triggering.

[0126] When the first signal is a PUCCH signal, the first signal can carry Msg4 Hybrid Automatic Repeat Request (HARQ) information or MsgB HARQ information.

[0127] When the first signal is a WUS signal, the first signal can carry wake-up information, such as triggering the transmission of a specific downlink signal or system message.

[0128] Optionally, in some embodiments, the first operation may include the terminal receiving a second signal sent by the network-side device based on first QCL information, wherein the first QCL information is associated with first downlink signal combination information, for example, the first QCL information is determined based on the measurement results of the first downlink signal combination and / or the signals in the first downlink signal combination. In this way, when the terminal detects multiple downlink signals, compared to related technologies where QCL information is determined based on a single downlink signal or QCL is assigned to a single downlink signal, the solution provided in this application allows the terminal to use multiple downlink signals as a first downlink signal combination, determine the first QCL information based on the first downlink signal combination and / or the measurement results of the first downlink signal combination, and receive the second signal sent by the network-side device according to the first QCL information. This allows the terminal to fully utilize multiple downlink signals to further improve access reliability and uplink signal transmission performance, and also helps improve communication quality.

[0129] The first QCL information includes at least one of the following: beam direction, QCL parameters (including at least one of Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters), Transmission Configuration Indicator (TCI), and TRP.

[0130] In some embodiments, the first operation may further include the terminal sending a first signal to the network-side device and the terminal receiving a second signal sent by the network-side device based on the first QCL information. The specific implementation of these two steps can be referred to the preceding description, and will not be repeated here.

[0131] Optionally, the second signal includes at least one of the following:

[0132] Physical downlink shared channel (PDSCH) signal;

[0133] Physical downlink control channel (PDCCH) signal;

[0134] Low Power Wake-up signal (LP-WUS);

[0135] Broadcast signal;

[0136] SSB;

[0137] CSI-RS;

[0138] TRS.

[0139] It should be noted that when the second signal is different, the information it carries may also be different.

[0140] For example, when the second signal is a PDSCH signal, the second signal can carry Msg2, Msg4, MsgB, or paging information.

[0141] When the second signal is a PDCCH signal, the second signal can carry downlink control information (DCI), or scheduling or control information for Paging / Msg2 / Msg4 / MsgB.

[0142] When the second signal is an LP-WUS signal, the second signal can carry terminal wake-up information (such as for waking up the terminal to receive other downlink signals).

[0143] When the second signal is a broadcast signal, the second signal can carry system messages, such as System Information Block (SIB) information, including on-demand SIB information.

[0144] When the second signal is an SSB (e.g., on-demand SSB, second-level SSB, etc.), the second signal can carry the sequence information or system information required for synchronization, such as Master Information Block (MIB) information.

[0145] When the second signal is CSI-RS or TRS, the second signal can carry information for channel measurement, beam management, or fine synchronization.

[0146] In this embodiment, the terminal sends a first signal to the network-side device and / or receives a second signal sent by the network-side device based on the first QCL information. At least one of the transmission resources, transmission beam, and transmission power of the first signal, as well as the first QCL information, are associated with first downlink signal combination information. Therefore, when the terminal receives or detects multiple downlink signals, it can use the multiple downlink signals or at least a portion of them as a first downlink signal combination. Based on this first downlink signal combination as a whole, it determines at least one of the transmission resources, transmission beam, and transmission power of the first signal, and / or determines the first QCL information, instead of determining it based on a single downlink signal. This eliminates the need for the terminal to send the first signal multiple times, effectively saving terminal energy and resource consumption, or helping the terminal fully utilize multiple downlink signals to further improve access reliability and uplink signal transmission performance, thus improving terminal communication quality and efficiency.

[0147] Optionally, the transmission resources for the first signal include at least one of the following:

[0148] Time and frequency resources;

[0149] Sequence resources;

[0150] DMRS resources;

[0151] Scrambling code resources.

[0152] In this embodiment, the terminal can determine the transmission resources of the first signal based on the resources associated with the first downlink signal combination, for example, by determining the time-frequency resources of the first downlink signal. This allows the terminal to quickly determine the transmission resources of the first signal based on the first downlink signal combination consisting of at least some of the downlink signals when receiving multiple downlink signals, thereby fully utilizing the multiple downlink signals and helping to improve the terminal's access reliability and transmission performance.

[0153] Optionally, when the transmission power of the first signal is associated with the first downlink signal combination information, the method further includes:

[0154] The terminal determines first information based on the first downlink signal combination and determines the transmission power of the first signal based on the first information;

[0155] The first information includes at least one of the following: path loss, target received power, power offset, maximum transmit power, power backoff value, power level, and transmit module information. The power level defines the maximum transmit power in the corresponding frequency band and channel bandwidth.

[0156] For example, the terminal determines the transmission module information based on the first downlink signal combination, and then determines the transmission power of the first signal based on the transmission module information. For instance, the terminal determines to use a low-power module to transmit the first signal based on the first downlink signal combination, employing the power control parameters corresponding to the low-power module (e.g., the power bias value Δ of uplink power control in NR). TF The transmission power of the first signal is determined by using either the parameters f(i,l) or a new uplink transmission power calculation formula corresponding to the low-power module, so that the terminal can transmit the first signal based on the transmission power.

[0157] In this embodiment of the application, the terminal can determine the transmission power of the first signal based on the first information determined by the first downlink signal combination, thereby enabling the terminal to make full use of multiple downlink signals to determine the transmission power and transmit the first signal, which helps the terminal improve transmission performance. The terminal also does not need to perform multiple signal transmissions, which helps to save terminal resource consumption and energy consumption.

[0158] Optionally, when the transmission beam of the first signal is associated with the first downlink signal combination information, the first downlink signal combination information includes at least one of the following:

[0159] (1) The receiving beam of the first downlink signal combination, for example, the transmitting beam of the first signal corresponds to the receiving beam of the first downlink signal combination, wherein the receiving beam of the first downlink signal combination may also be represented as QCL parameters, Transmission Configuration Indicator (TCI), TRP and other information.

[0160] (2) The downlink signals included in the first downlink signal combination, i.e., which downlink signals are included in the first downlink signal combination;

[0161] (3) The mapping relationship between the first downlink signal combination and QCL information, wherein the mapping relationship may be indicated by network-side devices (such as by system information) or predefined by the protocol;

[0162] (4) The measurement results of the downlink signals in the first downlink signal combination, for example, the transmission beam of the first signal is determined based on the ratio of the measurement results of the downlink signals in the first downlink signal combination; the measurement results include at least one of the following: RSRP, reference signal received quality (RSRQ), signal-to-noise and interference ratio (SINR), signal-to-noise ratio (SNR), signal-to-interference ratio (SIR), phase information, angle information (e.g., angle of arrival (AOA)).

[0163] In this embodiment of the application, the terminal can determine the transmission beam of the first signal based on the above method. That is, the determination of the transmission beam of the first signal is related to the combination of the first downlink signals, so that the terminal can make full use of multiple downlink signals to determine the transmission beam and transmit the first signal. This helps the terminal improve transmission performance, and the terminal does not need to perform multiple signal transmissions, which helps to save terminal resource consumption and energy consumption.

[0164] Optionally, the first QCL information is associated with the first downlink signal combination information, and the method further includes at least one of the following:

[0165] The terminal determines the first QCL information based on the mapping relationship between the first downlink signal combination and the QCL information;

[0166] The terminal determines the first QCL information based on the measurement results of the downlink signal in the first downlink signal combination.

[0167] For example, the terminal determines the first QCL information based on the mapping relationship between the first downlink signal combination and the QCL information. The mapping relationship between the first downlink signal combination and the QCL information is indicated by the network-side device (e.g., through system information) or predefined by the protocol. For example, the network side may indicate the mapping relationship between the first downlink signal combination and the QCL information to the terminal, such as indicating the mapping relationship between the first downlink signal combination and the beam direction. Based on the mapping relationship indicated by the network-side device, the terminal can determine the beam direction corresponding to the first downlink signal combination, enabling the terminal to receive the second signal based on the corresponding beam direction. This ensures effective reception of the second signal by the terminal and helps improve the communication quality between the terminal and the network-side device.

[0168] Optionally, the terminal determines the first QCL information based on the measurement results of the downlink signal in the first downlink signal combination, including:

[0169] The terminal determines the first QCL information based on the magnitude relationship of the downlink signal measurement results in the first downlink signal combination.

[0170] It should be noted that the magnitude relationship of the downlink signal measurement results can be a ratio of the downlink signal measurement results, a difference in the downlink signal measurement results, or an order of magnitude of the downlink signal measurement results, etc. For example, the terminal determines the first QCL information based on the ratio of the downlink signal measurement results in the first downlink signal combination. For instance, the first QCL information can be quickly determined based on the ratio of the measurement results of two downlink signals in the first downlink signal combination, thereby ensuring that the terminal can effectively receive the second signal based on the first QCL information, which helps improve the communication quality between the terminal and the network-side equipment.

[0171] Optionally, the measurement results include at least one of the following: RSRP, RSRQ, SINR, SNR, SIR, phase information, and angle information.

[0172] In this embodiment of the application, if the terminal fails to send the first signal, the method further includes at least one of the following:

[0173] (1) The terminal performs power boosting based on the transmission power of the first signal transmitted last time, and retransmits the first signal in the direction of the uplink transmission beam corresponding to the receiving beam of the first downlink signal combination;

[0174] (2) The terminal recalculates the transmission power based on the first downlink signal and retransmits the first signal on the uplink transmission beam corresponding to the receiving beam of the first downlink signal;

[0175] (3) The terminal uses the transmission power of the first signal transmitted last time to retransmit the first signal on the uplink transmission beam corresponding to the receiving beam of the first downlink signal;

[0176] (4) The terminal recalculates the transmission power based on the second downlink signal combination and retransmits the first signal;

[0177] (5) The terminal, based on the second downlink signal combination, uses the previous transmission power and retransmits the first signal;

[0178] The second downlink signal combination is different from the first downlink signal combination. The first downlink signal combination includes the first downlink signal. For example, the first downlink signal may be the downlink signal with the best measurement result in the first downlink signal combination.

[0179] For example, the terminal may retransmit the first signal on the uplink transmit beam corresponding to the receive beam of the second downlink signal combination, or the terminal may decide, based on implementation, to retransmit the uplink beam used for the first signal.

[0180] Optionally, the second downlink signal combination satisfies the first condition, including at least one of the following:

[0181] The measurement results of the downlink signals in the second downlink signal combination under the first measurement metric are all greater than or equal to the first preset value;

[0182] The measurement result of the downlink signal in the second downlink signal combination under the first measurement metric determines a first value, and the first value is greater than or equal to a second preset value.

[0183] The first measurement metric includes, but is not limited to, power, channel quality, signal-to-noise ratio, and interference level, and the measurement results include, but are not limited to, RSRP, RSRQ, SINR, SNR, SIR, angle information, and phase information.

[0184] The first preset value may be specifically configured for the downlink signal in the first downlink signal combination, or it may be the same as the threshold value defined for a single downlink signal resource; the second preset value may be specifically configured for the downlink signal in the first downlink signal combination, or it may be the same as the threshold value defined for a single downlink signal resource. The first numerical value may be the value obtained by calculating the measurement result of the downlink signal in the second downlink signal combination under the first measurement metric through a function, wherein the function includes, but is not limited to: averaging, taking the median, taking the maximum value, taking the minimum value, taking any value, and calculating a weighted average (the weights are indicated by the network side or predefined by the protocol).

[0185] In this embodiment of the application, if the terminal fails to send the first signal, the terminal can resend the first signal in the manner described above. This defines how the terminal resends the first signal in the scenario of the first downlink signal combination, effectively ensuring communication between the terminal and the network-side device.

[0186] To better understand, the signal processing method provided in this application will be specifically described below through several implementation methods.

[0187] In some implementations: the UE determines first QCL information based on the composition of the first downlink signal combination and / or the measurement results of the signals in the first downlink signal combination, including at least one of the following:

[0188] (1) Based on the mapping relationship between the pattern of the first downlink reference signal combination and the quasi-co-address information, the first quasi-co-address information is determined, wherein the mapping relationship is indicated by network indication (such as by system information indication) or predefined by protocol; for example, the network-side device indicates all possible downlink signal combinations and their corresponding quasi-co-address information.

[0189] For example, such as Figure 3a As shown, there are 4 SSBs and 4 SSB combination patterns. Based on the SSB index or SSB combination pattern index, the UE determines the associated quasi-co-address information and receives the second signal sent by the network side based on the quasi-co-address information. The association between the SSB index or SSB combination pattern index and the quasi-co-address information can be indicated by the network-side device through system information, for example, in the form of a table, as shown in Table 1 below.

[0190] Table 1. Mapping relationship between SSB or SSB combination and quasi-co-location information

[0191] Identification / index information of SSB or SSB combination Quasi-co-address information SSB#0 Quasi-co-address information 1 SSB#1 Quasi-co-address information 2 SSB#2 Quasi-co-location information 3 SSB#3 Quasi-co-address information 4 SSB combination pattern 1 Quasi-co-address information 5 SSB combination pattern 2 Quasi-co-address information 6 SSB combination pattern 3 Quasi-co-address information 7 SSB combination pattern 4 Quasi-co-address information 8

[0192] Specifically, for SSBs, quasi-co-address information 1-4 indicates that the second signal and SSB#0-SSB#3 use the same beam direction, quasi-co-address parameters, or transmission configuration indication, respectively. For SSB combinations, quasi-co-address information 5-8 can be different from quasi-co-address information 1-4. That is, the network can define new beam direction, quasi-co-address parameters, or transmission configuration indications for each SSB combination. These new beam direction, quasi-co-address parameters, or transmission configuration indications correspond to the channel information (including at least one of Doppler frequency shift, Doppler spread, average delay, delay spread, and spatial reception parameters) associated with this virtual SSB resource, but not to the channel information of the actual SSB used for transmission. It should be noted that... Figure 3a Taking a two-dimensional SSB beam distribution as an example, if the vertical dimension is further considered, in other implementations, it can also be a three-dimensional SSB beam distribution.

[0193] (2) Determine the first quasi-co-address information based on the relationship between the measurement results of the signals in the first downlink signal combination.

[0194] The first quasi-co-location information includes, but is not limited to, Doppler frequency shift, Doppler spread, average time delay, time delay spread, spatial reception parameters / beam direction, etc. The relationships between the measurement results include, for example, proportional relationships and magnitude relationships.

[0195] For example, if the first downlink signal combination is SSB#1 + SSB#2, and the UE measures the RSRP ratio of SSB#1 and SSB#2 as 1:2, then: for spatial reception parameters / beam direction information, the ratio of the angle between the beam direction of the second signal and the beam directions of SSB#1 and SSB#2 is 1:2, such as... Figure 3b As shown, assuming the beam direction angle between SSB#1 and SSB#2 is 30 degrees, then the beam direction of the second signal is between the beam directions of SSB#1 and SSB#2, and the angle between the beam direction of SSB#1 and SSB#2 is 10 degrees and the angle between the beam direction of SSB#1 and SSB#2 is 20 degrees.

[0196] For the Doppler frequency shift information, the Doppler frequency shift of the second signal is determined based on the relative velocity in the beam direction of the second signal. The beam direction of the second signal and the relative velocity in the beam direction are calculated jointly by the beam directions of SSB#1 and SSB#2 and their respective Doppler frequency shifts.

[0197] For example, please refer to Figure 3c Let Δf1 be the Doppler frequency shift of SSB#1 and Δf2 be the Doppler frequency shift of SSB#2. Let θ be the angle between the beam directions of SSB#1 and SSB#2. Assuming the moving speed of the network-side device relative to the UE is v and the angle between its moving direction and the beam direction of SSB#1 is φ, then the moving speed v and the angle φ of the UE can be jointly solved based on Δf1 and Δf2. Furthermore, the beam direction of the second signal is determined based on the ratio of RSRP of SSB#1 and SSB#2. Then, based on the moving speed v of the UE, the angle φ between the moving direction of the UE and SSB#1, and the angle ψ between the beam direction of the second signal and the beam direction of SSB#1 (for example, if the ratio of RSRP of SSB#1 and SSB#2 is 1:2, we get ψ = θ / 3), the relative speed in the beam direction of the second signal is calculated, and thus the Doppler frequency shift Δf is obtained.

[0198] For the average delay information, the average delay of the second signal is calculated by weighted average of the average delays of SSB#1 and SSB#2. The weight values ​​can be equal, that is, the average delay of the second signal is the average of the average delays of SSB#1 and SSB#2; or, the weight value can be determined by the ratio of RSRP of SSB#1 and SSB#2; or, the weight value can be 0, that is, the average delay of the second signal is equal to one of the average delays of SSB#1 and SSB#2, such as the maximum or minimum value.

[0199] For the Doppler extension information, the Doppler extension information of the second signal is obtained by combining the Doppler extensions of SSB#1 and SSB#2. For example, the Doppler extension range of the second signal is the Doppler extension information corresponding to the union, intersection, maximum range, or minimum range of the Doppler extension ranges of SSB#1 and SSB#2.

[0200] For the delay spread information, the delay spread information of the second signal is obtained by combining the delay spreads of SSB#1 and SSB#2. For example, the delay spread range of the second signal is the delay spread information corresponding to the union, intersection, maximum range, or minimum range of the delay spread ranges of SSB#1 and SSB#2 (such as the maximum delay spread).

[0201] In this embodiment, the terminal can determine the first QCL information based on a first downlink signal combination including multiple SSBs (i.e., the aforementioned downlink signals). This helps the terminal to face the base station with a better beam direction, thereby helping the terminal to better receive the second signal sent by the network-side device, improving the communication performance between the terminal and the network-side device. The terminal also does not need to receive signals multiple times, which helps to save terminal resource overhead and energy consumption.

[0202] Alternatively, in some implementations:

[0203] The terminal determines the downlink integrated path loss based on the pattern of the first downlink signal combination, and calculates the transmission power of the first signal based on the downlink integrated path loss.

[0204] The method for determining the downlink overall path loss includes at least one of the following:

[0205] Method 1: At least one of the maximum, minimum, median, or any value among the path losses of the downlink signals in the first downlink signal combination;

[0206] Method 2: The downlink path loss in the first downlink signal combination is calculated according to a certain predefined function, such as averaging or weighted averaging.

[0207] Method 3: The real value of the downlink composite path loss is the sum of the real values ​​of the path losses of all downlink signals in the first downlink signal combination. Correspondingly, the downlink composite path loss [dB] of the first downlink signal combination is the sum of the real values ​​of the path losses of all downlink signals in the first downlink signal combination, taken as log.

[0208] Method 4: The downlink signal measurement results in the first downlink signal combination are calculated according to a certain predefined function.

[0209] For example, the downlink signal is taken as SSB, but in this example, it can be replaced with other downlink signals (such as CSI-RS). The method for determining the downlink composite path loss is as follows: in Indicates SSB combination q d Total transmission power, Indicates SSB combination q d The integrated reception RSRP, the integrated reception RSRP calculation method is SSB combination q d The square of the sum of the square roots of the received RSRP of each SSB in the equation; that is, the predefined function can be expressed as:

[0210] The above example can be used in base station or MTRP scenarios where multiple TRPs use coherent transmission to transmit signals such as SSB and CSI-RS in the first downlink signal combination. In this case, the received signal is a coherent superposition of the various signals, and the downlink integrated path loss can be determined in the above manner.

[0211] In this embodiment, the terminal can determine the transmission power of the first signal based on the first downlink signal combination, without having to calculate the transmission power and transmit the uplink signal separately for each downlink signal. This can effectively reduce the total power consumption, thereby helping to reduce the terminal's resource overhead and energy consumption.

[0212] Based on the aforementioned downlink integrated path loss, the calculation method for the first signal transmission power is as follows:

[0213] Alternatively, in some implementations:

[0214] For PUSCH transmission, when transmitted based on the first downlink signal combination, the UE's transmit power is calculated as follows:

[0215]

[0216] (1) Where PL b,f,c (q d ) represents the index q of the first downlink signal combination pattern. d Corresponding downlink overall path loss The downlink signal is, for example, the SSB synchronization signal, or other downlink signals such as CSI-RS. Taking SSB as an example, the overall path loss is expressed as follows: In other instances, the SSB can be replaced with other downlink signals (such as CSI-RS).

[0217] like Figure 3a As shown, four SSBs {#0,#1,#2,#3} are defined, and four SSB combination patterns are defined as follows:

[0218] SSB combination pattern 1: {SSB#0, SSB#1}; SSB combination pattern 2: {SSB#1, SSB#2}; SSB combination pattern 3: {SSB#2, SSB#3}; SSB combination pattern 4: {SSB#0, SSB#3};

[0219] Then 0≤q d <8, where 0 to 3 represent SSB(q) d This represents the SSB index), and 4 to 7 represent SSB combinations (where x = q). d -nrofSSB+1 represents the index of the SSB combination pattern, where nrofSSB is the total number of SSBs. It should be noted that SSB combination patterns can also be numbered starting from pattern0, corresponding to x = q. d -nrofSSB.

[0220] For the SSB combination patternx, taking x=1 as an example, i.e. q d =4. The methods for calculating downlink aggregate path loss include at least one of the following:

[0221] Method 1: in, This represents the maximum downlink path loss of each SSB in SSB combination pattern 1; or... The minimum downlink path loss among all SSBs in SSB combination pattern1; or, The median / median of the downlink path loss for each SSB in SSB combination pattern1; or, For any SSB in SSB combination pattern1, the downlink path loss is denoted as .

[0222] Method 2: in, The average downlink path loss of all SSBs in SSB combination pattern1 is denoted by nrofssbComb1 = 2, which represents the number of SSBs in SSB combination pattern1.

[0223] Method 3: The downlink composite path loss [dB] of SSB combination pattern 1 is the sum of the real values ​​of the downlink path losses of all SSBs in the SSB combination, taken as logarithm.

[0224] Method 4: The downlink integrated path loss of SSB combination pattern 1 is calculated based on the SSB measurement results in the SSB combination according to a certain predefined function f(·), such as...

[0225] (2) Specifically, when j = 0, it indicates power control of Msg3 or MsgA. or

[0226] This indicates the target received power when transmitting Msg3 or MsgA based on the first downlink signal combination (corresponding preamble). The target received power of Msg3 is indicated by preambleReceivedTargetPower, and the target received power of MsgA is indicated by msgA-preambleReceivedTargetPower (if this parameter is not configured, it is indicated by preambleReceivedTargetPower by default).

[0227] This indicates the power offset of Msg3 transmitted based on the first downlink signal combination (corresponding preamble).

[0228] This represents the power offset of MsgA transmitted based on the first downlink signal combination (the corresponding preamble).

[0229] In this embodiment, for PUSCH transmission, when transmitting based on the first downlink signal combination, the terminal can determine the transmission power of the first signal in the manner described above. That is, the transmission power of the first signal is determined according to the first downlink signal combination, without needing to calculate the transmission power for each downlink signal and transmit the uplink signal, thereby helping to save terminal resource overhead and energy consumption. In addition, since the terminal transmits based on the first downlink signal combination, it does not need to perform multiple signal transmissions, which also helps to save terminal resource overhead and energy consumption.

[0230] Optionally, for PUCCH transmission, such as PDCCH transmission of Msg4 HARQ or MsgB HARQ, when transmitted based on the first downlink signal combination, the UE's transmit power is calculated as follows:

[0231]

[0232] In the BWPb of carrier f in serving cell c, i represents the PUCCH transmission timing, l represents the PUCCH power control adjustment state, and q u P represents O_UE_PUCCH Value index, q dThis represents the index of the downlink signal or combination of downlink signals used when calculating path loss.

[0233] For downlink signals, PL b,f,c (q d ) represents the downlink signal index q d The corresponding downlink overall path loss, 0≤q d d Q d The maximum number of downlink signals is maxNrofPUCCH-PathlossReferenceRSs;

[0234] For downlink signal combinations Indicates the signal combination index (q) d -Q d The corresponding downlink overall path loss, Q d The maximum number of downlink signals is maxNrofPUCCH-PathlossReferenceRSs. The total number of downlink signals and signal combinations is maxNrofPUCCH-PathlossReferenceRSs+maxNrofPUCCH-PathlossReferenceRSCombination.

[0235] The downlink signal, such as the SSB synchronization signal or other downlink signals like CSI-RS, if it does not provide the UE with a pathlossReferenceRSs parameter or dedicated higher-layer parameters, then the downlink path loss is calculated based on the SSB or SSB combination. The index of the SSB or SSB combination is consistent with the SSB or SSB combination index used by the UE to obtain MIB information. The comprehensive path loss based on the SSB combination is expressed as... Examples of the four corresponding calculation methods can be found in the example of Embodiment 2-1-(1) above. For explanations of other parameters, please refer to the relevant protocols.

[0236] In this embodiment, for PUCCH transmission, when transmitting based on the first downlink signal combination, the terminal can determine the transmission power of the first signal in the above manner, that is, determine the transmission power of the first signal according to the first downlink signal combination, without having to calculate the transmission power for each downlink signal separately and transmit the uplink signal, thereby helping to save terminal resource overhead and energy consumption.

[0237] Optionally, for uplink SRS transmission, the UE's transmit power is calculated as follows:

[0238]

[0239] ​In the BWPB of carrier f in serving cell c, I represents the SRS transmission timing, L represents the SRS power control adjustment state, and q s This represents the SRS resource set index. q d This represents the index of the downlink signal or combination of downlink signals corresponding to the path loss calculation, derived from the SRS resource set q. s The parameter `pathlossReferenceRS` provides, or refers to, an index of the SSB or SSB combination, or an index of the CSI-RS resource or CIS-RS resource combination. If no `pathlossReferenceRSs` parameter, or `SRS-PathlossReferenceRS-Id` parameter, or dedicated higher-layer parameter is provided to the UE, then the UE calculates the downlink path loss based on the SSB or SSB combination, and the index of the SSB or SSB combination is consistent with the SSB or SSB combination index used by the UE to obtain MIB information. The comprehensive path loss based on the SSB combination is expressed as... Examples of the four corresponding calculation methods can be found in the examples above.

[0240] In this embodiment, for uplink SRS transmission, the terminal can determine the transmission power of the first signal based on the above method, that is, determine the transmission power of the first signal based on the combination of the first downlink signals, without having to perform power calculation for each downlink signal, thereby helping to save terminal resource overhead and energy consumption.

[0241] Optionally, for WUS or PRACH transmission, the UE's transmit power is calculated as follows:

[0242] P PRACH,b,f,c (i)=min{P CMAX,f,c (i),P PRACH,target,f,c +PL b,f,c [dBm]

[0243] In this context, on the BWPb of carrier f in serving cell c, i represents the transmission timing, and PL... b,f,c For the path loss of downlink signals associated with PRACH transmissions, when a PRACH transmission is associated with a certain SSB combination, PL b,f,c The combined path loss of the SSB combination Methods for calculating downlink aggregate path loss include at least one of the following:

[0244] Method 1: This represents the maximum downlink path loss of each SSB in the SSB combination; or... The minimum downlink path loss among all SSBs in the SSB combination; or, The median / median of the downlink path loss for each SSB in the SSB combination; or, For any one of the SSBs in the SSB combination, the downlink path loss is denoted as .

[0245] Method 2: The value is the average downlink path loss of all SSBs in the SSB combination, and the nrofssbComb table represents the number of SSBs in the SSB combination.

[0246] Method 3: Downlink Combined Path Loss of SSB Combination The sum of the real values ​​of the downlink path losses of all SSBs in the SSB combination is taken as log.

[0247] Method 4: The downlink composite path loss of the SSB combination is calculated from the SSB measurement results in the SSB combination according to a predefined function f(·), such as...

[0248] In this embodiment, for WUS or PRACH transmission, the terminal can determine the transmission power of the first signal based on the above method, that is, determine the transmission power of the first signal according to the first downlink signal combination, without having to calculate the transmission power for each downlink signal and send the uplink signal separately, thereby helping to save terminal resource overhead and energy consumption.

[0249] Alternatively, in some implementations:

[0250] For example, to initiate a PRACH and receive Msg2 based on SSB combination, please refer to [reference needed]. Figure 3d .

[0251] Step 1: The terminal detects SSBs, determines the first SSB combination based on the SSB measurement results, and determines the first uplink transmission beam direction based on the first SSB combination; and transmits PRACH / Msg1 in the first uplink transmission beam direction.

[0252] Step 2: Within the time window for RAR reception, the terminal receives RAR / Msg2 based on the first quasi-co-address information associated with the first SSB;

[0253] Step 3: After the terminal successfully receives RAR / Msg2 based on the first quasi-co-address information, it transmits PUSCH / Msg3 in the first uplink transmission beam direction of Msg1.

[0254] Step 4: The terminal receives Msg4 / RRC configuration information based on the first quasi-co-address information associated with the first SSB.

[0255] In this embodiment, during the random access process of the terminal, the terminal can determine the first uplink transmission beam direction and the first QCL information based on the first SSB combination, and initiate random access based on the first SSB combination. This helps the terminal to make full use of multiple downlink signals to further improve the reliability of access and the uplink signal transmission performance.

[0256] For example, to initiate a PRACH repetition based on an SSB and an SSB combination, please refer to [link / reference]. Figure 3e .

[0257] Step 1: The terminal detects SSBs, determines the first SSB combination based on the SSB measurement results, and determines the first uplink transmission beam direction based on the first SSB combination; the UE transmits PRACH / Msg1 repetition in the first uplink transmission beam direction and in the uplink transmission beam direction corresponding to the N (N≥1) SSBs with the best measurement results.

[0258] Step 2: Within the time window of RAR reception, the terminal receives the RAR / Msg2 signal based on the first quasi-co-address information associated with the first SSB and the quasi-co-address information of the N SSBs with the best measurement results;

[0259] Step 3: After the terminal successfully receives RAR / Msg2, it transmits PUSCH / Msg3 signal in the uplink transmission beam direction corresponding to RAR / Msg2; wherein the uplink transmission beam direction corresponding to RAR / Msg2 can be the first uplink transmission beam direction corresponding to the first SSB combination, or it can be the uplink transmission beam corresponding to one of the N SSBs.

[0260] Step 4: The terminal receives Msg4 / RRC configuration information based on the quasi-co-address information associated with RAR / Msg2.

[0261] In this embodiment, during the random access process of the terminal, the terminal can determine the first uplink transmission beam direction and the first QCL information based on the first SSB combination, and initiate random access based on the SSB and the first SSB combination. This helps the terminal to make full use of multiple downlink signals to further improve the reliability of access and the uplink signal transmission performance.

[0262] For example, a PRACH can be initiated based on an SSB, carrying SSB combination information, and Msg2 can be received based on the SSB combination. Please refer to [reference needed]. Figure 3f .

[0263] Step 1: The terminal detects SSBs, selects the SSB with the best measurement result, or any SSB that meets the RSRP threshold requirement, and sends PRACH / Msg1 in the uplink transmission beam direction corresponding to the SSB, carrying the information of the first SSB combination, such as sending the preamble associated with the first SSB combination on the RO resource associated with the SSB.

[0264] Step 2: Within the RAR reception time window, the terminal receives the RAR / Msg2 signal based on the first quasi-co-address information associated with the first SSB and the quasi-co-address information of the SSB with the best measurement result.

[0265] Step 3: After the terminal successfully receives RAR / Msg2, it transmits the PUSCH / Msg3 signal in the uplink transmission beam direction corresponding to RAR / Msg2;

[0266] Step 4: The terminal receives Msg4 / RRC configuration information based on the quasi-co-address information associated with RAR / Msg2.

[0267] In this embodiment, during the random access process of the terminal, the terminal can determine the first uplink transmission beam direction and the first QCL information based on the first SSB combination, and initiate PRACH based on the SSB. This helps the terminal to make full use of multiple downlink signals to further improve the reliability of access and the uplink signal transmission performance.

[0268] Alternatively, in some implementations:

[0269] For example, MsgA is sent and MsgB is received based on SSB combination.

[0270] Step 1: The terminal detects SSBs, determines the first SSB combination based on the SSB measurement results, determines the first uplink transmission beam direction based on the first SSB combination, and transmits MsgA in the first uplink transmission beam direction;

[0271] Step 2: Within the RAR reception time window, the terminal receives MsgB based on the first quasi-co-address information associated with the first SSB.

[0272] In this embodiment, during the random access process of the terminal, the terminal can determine the first uplink transmission beam direction and the first QCL information based on the first SSB combination, and initiate PRACH based on the first SSB combination, which helps the terminal to make full use of multiple downlink signals to further improve the reliability of access and the uplink signal transmission performance.

[0273] For example, MsgA repetition can be sent based on a combination of SSB and SSB.

[0274] Step 1: The terminal detects SSBs, determines the first SSB combination based on the SSB measurement results, and determines the first uplink transmission beam direction based on the first SSB combination; the UE transmits MsgA repetition in the first uplink transmission beam direction and in the uplink transmission beam direction corresponding to the N (N≥1) SSBs with the best measurement results.

[0275] Step 2: Within the RAR reception time window, the terminal receives MsgB based on the first quasi-co-address information associated with the first SSB and the quasi-co-address information of the N SSBs with the best measurement results.

[0276] In this embodiment, during the random access process of the terminal, the terminal can determine the first uplink transmission beam direction and the first QCL information based on the first SSB combination, and perform the random access process based on the SSB and the first SSB combination, which helps the terminal to make full use of multiple downlink signals to further improve the reliability of access and the uplink signal transmission performance.

[0277] For example, MsgA is sent based on SSB, carrying SSB combination information, and MsgB is received based on SSB combination.

[0278] Step 1: The terminal detects SSBs, selects the SSB with the best measurement result, or any SSB that meets the RSRP threshold requirement, and transmits MsgA in the uplink transmission beam direction corresponding to the SSB, carrying information of the first SSB combination, such as the preamble associated with the first SSB combination in the MsgA.

[0279] Step 2: Within the RAR reception time window, the terminal receives MsgB based on the first quasi-co-address information associated with the first SSB and the quasi-co-address information of the SSB.

[0280] In this embodiment, during the random access process of the terminal, the terminal can determine the first uplink transmission beam direction and the first QCL information based on the first SSB combination, and initiate the random access procedure based on the first SSB combination. This helps the terminal to make full use of multiple downlink signals to further improve the reliability of access and the uplink signal transmission performance.

[0281] Alternatively, in some implementations:

[0282] If the UE transmits a PRACH / Msg1 or MsgA signal in the first uplink transmit beam direction based on the first SSB combination, and a collision occurs causing network-side reception failure, then the transmit power when re-initiating PRACH transmission shall be determined by at least one of the following methods:

[0283] Method 1: Random access is still performed based on the first SSB combination. Power ramping of PRACH or MsgA is performed according to the power ramping step size indicated by powerRampingStep. That is, the PRACH or MsgA transmission power is the previous PRACH or MsgA transmission power plus the power ramping step size, until the power reaches P. CMAX .

[0284] Wherein, the maximum power value P CMAM It can be configured specifically for the SSB combination, or it can be the same as the maximum power value defined for a single SSB resource; similarly, the power boost parameters can be configured specifically for the SSB combination, or they can be the same as the power boost parameters defined for a single SSB resource.

[0285] Method 2: Fallback to the SSB-based access procedure, where the UE initiates random access based on the first SSB, and the PRACH or MsgA transmission power is recalculated according to the path loss of the first SSB.

[0286] Method 3: Fallback to the SSB-based access procedure. The UE determines the PRACH or MsgA transmission beam based on the first SSB, and the transmission power of PRACH or MsgA remains unchanged (i.e., the same as the transmission power of PRACH or MsgA based on the previous first SSB combination).

[0287] In this embodiment, if the terminal fails to send the PRACH / Msg1 or MsgA signal based on the first SSB combination, the terminal can resend the signal in the above-mentioned ways, thereby defining the means for the terminal to resend the signal in the event of signal transmission failure, effectively ensuring the transmission performance of the terminal.

[0288] Please refer to Figure 4 , Figure 4 This is the fifth flowchart of a signal processing method provided in this application embodiment, and the method is applied to a network-side device. Figure 4 As shown, the method includes the following steps:

[0289] Step 401: The network-side device performs a second operation, which includes at least one of the following:

[0290] The receiving terminal sends a first signal, and the network-side device receives at least one of the receiving resources and receiving beams of the first signal and associates them with the first downlink signal combination information;

[0291] A second signal is sent to the terminal based on the first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

[0292] Optionally, the first signal includes at least one of the following: PRACH signal, PUSCH signal, PUCCH signal, WUS, and SRS.

[0293] Optionally, the received resources include at least one of the following:

[0294] Time and frequency resources;

[0295] DMRS resources;

[0296] Scrambling code resources.

[0297] Optionally, the second signal includes at least one of the following: PDSCH signal, PDCCH signal, LP-WUS, broadcast signal, SSB, CSI-RS, and TRS.

[0298] Optionally, the first QCL information is associated with the first downlink signal combination information, and the method further includes at least one of the following:

[0299] The network-side device determines the first QCL information based on the mapping relationship between the first downlink signal combination and the QCL information;

[0300] The network-side device determines the first QCL information based on the measurement results of the downlink signal in the first downlink signal combination.

[0301] Optionally, the method further includes:

[0302] The network-side device sends a first indication information to the terminal, the first indication information being used to indicate the mapping relationship between the first downlink signal combination and QCL information.

[0303] It should be noted that the method provided in this application embodiment is applied to a network-side device, corresponding to the method embodiment applied to the terminal side described above. The relevant concepts and specific implementations involved in this application embodiment can be referred to the description in the terminal-side method embodiment described above. To avoid repetition, they will not be repeated here.

[0304] In this embodiment, the network-side device receives a first signal sent by the terminal and / or sends a second signal to the terminal based on first QCL information. The network-side device receives at least one of the receiving resources and receiving beam of the first signal, and associates the first QCL information with first downlink signal combination information. The network-side device can determine the receiving resources and / or receiving beam and / or first QCL information for receiving the first downlink signal as a whole, without needing to determine it based on a single downlink signal. This effectively saves energy and resource consumption of the network-side device, thereby helping to improve the communication efficiency and quality between the network-side device and the terminal.

[0305] The signal processing method provided in this application can be executed by a signal processing device. This application uses an example of a signal processing device executing the signal processing method to illustrate the signal processing device provided in this application.

[0306] This application provides a signal processing apparatus. As an example, the signal processing apparatus may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0307] The signal processing device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0308] For details, see Figure 5 When the signal processing device is a terminal or a component within a terminal, the signal processing device 500 includes:

[0309] The first execution module 501 is configured to perform a first operation, the first operation including at least one of the following:

[0310] Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information;

[0311] The second signal sent by the network-side device is received based on the first QCL information, and the first QCL information is associated with the first downlink signal combination information.

[0312] It should be noted that the first execution module 501 may include a sending module and / or a receiving module. The sending module is used to send a first signal to the network-side device, and the receiving module is used to receive a second signal sent by the network-side device based on the first QCL information.

[0313] Optionally, the first signal includes at least one of the following:

[0314] Physical Random Access Channel (PRACH) signal;

[0315] Physical uplink shared channel (PUSCH) signal;

[0316] Physical uplink control channel (PUCCH) signal;

[0317] Wake-up signal WUS;

[0318] Detection reference signal SRS.

[0319] Optionally, the transmission resources for the first signal include at least one of the following:

[0320] Time and frequency resources;

[0321] Sequence resources;

[0322] DMRS resources;

[0323] Scrambling code resources.

[0324] Optionally, the first execution module 501 is further configured to:

[0325] First information is determined based on the first downlink signal combination, and the transmission power of the first signal is determined based on the first information;

[0326] The first information includes at least one of the following: path loss, target received power, power offset, maximum transmitted power, power backoff value, power level, and transmitted module information.

[0327] Optionally, when the transmission beam of the first signal is associated with the first downlink signal combination information, the first downlink signal combination information includes at least one of the following:

[0328] The receiving beam of the first downlink signal combination;

[0329] The first downlink signal combination includes the downlink signals;

[0330] The mapping relationship between the first downlink signal combination and QCL information;

[0331] The measurement results of the downlink signal in the first downlink signal combination.

[0332] Optionally, the second signal includes at least one of the following:

[0333] Physical Downlink Shared Channel (PDSCH) signal;

[0334] Physical Downlink Control Channel (PDCCH) signal;

[0335] Low-power wake-up signal LP-WUS;

[0336] Broadcast signal;

[0337] Synchronization Signal Block (SSB);

[0338] Channel State Information Reference Signal (CSI-RS);

[0339] Track the reference signal TRS.

[0340] Optionally, the device is further used for at least one of the following:

[0341] The first QCL information is determined based on the mapping relationship between the first downlink signal combination and the QCL information;

[0342] The first QCL information is determined based on the measurement results of the downlink signal in the first downlink signal combination.

[0343] Optionally, the device is further configured to: determine the first QCL information based on the magnitude relationship of the measurement results of the downlink signals in the first downlink signal combination.

[0344] Optionally, the measurement result includes at least one of the following:

[0345] Reference signal received power RSRP;

[0346] Reference signal reception quality (RSRQ);

[0347] Signal-to-interference-plus-noise ratio (SINR);

[0348] Signal-to-noise ratio (SNR);

[0349] Signal-to-interference ratio (SIR);

[0350] Phase information;

[0351] Angle information.

[0352] Optionally, the mapping relationship between the first downlink signal combination and QCL information is indicated by the network-side device or predefined by the protocol.

[0353] Optionally, if sending the first signal fails, the first execution module 501 is further configured to perform at least one of the following:

[0354] Based on the transmission power of the first signal previously transmitted, the power is boosted, and the first signal is retransmitted in the direction of the uplink transmission beam corresponding to the receiving beam of the first downlink signal combination.

[0355] The transmission power is recalculated based on the first downlink signal, and the first signal is retransmitted on the uplink transmission beam corresponding to the receiving beam of the first downlink signal.

[0356] Using the transmission power of the first signal previously transmitted, the first signal is retransmitted in the direction of the uplink transmission beam corresponding to the receiving beam of the first downlink signal;

[0357] The transmission power is recalculated based on the second downlink signal combination, and the first signal is retransmitted;

[0358] Based on the second downlink signal combination, the previous transmission power is used, and the first signal is retransmitted;

[0359] Wherein, the first downlink signal combination includes the first downlink signal, and the second downlink signal combination is different from the first downlink signal combination.

[0360] Optionally, the second downlink signal combination satisfies the first condition, including at least one of the following:

[0361] The measurement results of the downlink signals in the second downlink signal combination under the first measurement metric are all greater than or equal to the first preset value;

[0362] The determination of a first value for the measurement result of the downlink signal in the second downlink signal combination under the first measurement metric, wherein the first value is greater than or equal to a second preset value.

[0363] The signal processing device provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0364] The signal processing apparatus provided in this application embodiment is capable of sending a first signal to a network-side device and / or receiving a second signal sent by the network-side device based on first QCL information. The first signal's transmission resources, transmission beam, and transmission power, along with the first QCL information, are associated with the first downlink signal combination information. Therefore, the apparatus can determine at least one of the first signal's transmission resources, transmission beam, and transmission power, and / or determine the first QCL information, by treating the first downlink signal combination as a whole, without needing to determine it based on a single downlink signal. This effectively saves energy and resource consumption, or helps the apparatus fully utilize multiple downlink signals to further improve access reliability and uplink signal transmission performance, thus improving the communication quality and efficiency of the apparatus.

[0365] See Figure 6 When the signal processing device is a network-side device or a component within a network-side device, the signal processing device 600 includes:

[0366] The second execution module 601 is configured to perform a second operation, the second operation including at least one of the following:

[0367] The receiving terminal sends a first signal, and the device receives at least one of the receiving resources and receiving beams of the first signal and associates it with first downlink signal combination information;

[0368] A second signal is sent to the terminal based on the first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

[0369] It should be noted that the second execution module 601 may include a sending module and / or a receiving module, wherein the sending module is used to send a second signal to the terminal, and the receiving module is used to receive a first signal sent by the terminal.

[0370] Optionally, the first signal includes at least one of the following: PRACH signal, PUSCH signal, PUCCH signal, WUS, and SRS.

[0371] Optionally, the received resources include at least one of the following:

[0372] Time and frequency resources;

[0373] DMRS resources;

[0374] Scrambling code resources.

[0375] Optionally, the second signal includes at least one of the following: PDSCH signal, PDCCH signal, LP-WUS, broadcast signal, SSB, CSI-RS, and TRS.

[0376] Optionally, the first QCL information is associated with the first downlink signal combination information, and the device is further configured to include at least one of the following:

[0377] The first QCL information is determined based on the mapping relationship between the first downlink signal combination and the QCL information;

[0378] The first QCL information is determined based on the measurement results of the downlink signal in the first downlink signal combination.

[0379] Optionally, the device is further used for:

[0380] Send a first indication message to the terminal, the first indication message being used to indicate the mapping relationship between the first downlink signal combination and QCL information.

[0381] The signal processing device 600 provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0382] like Figure 7 As shown, this application embodiment also provides a communication device 700, including a processor 701 and a memory 702. The memory 702 stores a program or instructions that can run on the processor 701. For example, when the communication device 700 is a terminal, the program or instructions executed by the processor 701 implement the above-mentioned... Figure 2 The signal processing method embodiments described herein employ the same steps and achieve the same technical effect. When the communication device 700 is a network-side device, the program or instruction executed by the processor 701 implements the above-described steps. Figure 4 The various steps of the signal processing method embodiment described herein can achieve the same technical effect, and will not be repeated here to avoid repetition.

[0383] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 2 The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 5 The signal processing device shown. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0384] The terminal 800 includes, but is not limited to, at least some of the following components: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, and processor 810.

[0385] Those skilled in the art will understand that the terminal 800 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 810 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 8 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0386] It should be understood that, in this embodiment, the input unit 804 may include a graphics processor 8041 and a microphone 8042. The graphics processor 8041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0387] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 801 can transmit it to the processor 810 for processing; in addition, the radio frequency unit 801 can send uplink data to the network-side device. Typically, the radio frequency unit 801 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0388] The memory 809 can be used to store software programs or instructions, as well as various data. The memory 809 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 809 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 809 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0389] Processor 810 may include one or more processing units; optionally, processor 810 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 810.

[0390] The radio frequency unit 801 is used for at least one of the following:

[0391] Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information;

[0392] The second signal sent by the network-side device is received based on the first QCL information, and the first QCL information is associated with the first downlink signal combination information.

[0393] It should be noted that the terminal provided in this application embodiment is capable of achieving Figure 2 The entire process of the method embodiment described herein, and the same or corresponding technical effects achieved, will not be repeated here to avoid duplication.

[0394] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 4 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0395] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 6 The signal processing device shown. (e.g.) Figure 9 As shown, the network-side device 900 includes: an antenna 91, a radio frequency (RF) device 92, a baseband device 93, a processor 94, and a memory 95. The antenna 91 is connected to the RF device 92. In the uplink direction, the RF device 92 receives information through the antenna 91 and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be transmitted and sends it to the RF device 92. The RF device 92 processes the received information and transmits it through the antenna 91.

[0396] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 93, which includes a baseband processor.

[0397] Baseband device 93 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 9 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 via a bus interface to call the program in the memory 95 and execute the network device operations shown in the above method embodiment.

[0398] The network-side device may also include a network interface 96, such as a Common Public Radio Interface (CPRI).

[0399] Specifically, the network-side device 900 in this application embodiment further includes: instructions or programs stored in memory 95 and executable on processor 94, wherein processor 94 calls the instructions or programs in memory 95 to execute. Figure 6 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0400] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described signal processing method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0401] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0402] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above signal processing method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0403] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0404] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described signal processing method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0405] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the signal processing method described above, and the network-side device can be used to perform the steps of the signal processing method described above.

[0406] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0407] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0408] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A signal processing method, characterized in that, include: The terminal performs a first operation, which includes at least one of the following: Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information; The second signal sent by the network-side device is received based on the first quasi-co-address QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

2. The method according to claim 1, characterized in that, The first signal includes at least one of the following: Physical Random Access Channel (PRACH) signal; Physical uplink shared channel (PUSCH) signal; Physical uplink control channel (PUCCH) signal; Wake-up signal WUS; Detection reference signal SRS.

3. The method according to claim 1 or 2, characterized in that, The transmission resources for the first signal include at least one of the following: Time and frequency resources; Sequence resources; Demodulation reference signal (DMRS) resources; Scrambling code resources.

4. The method according to any one of claims 1-3, characterized in that, When the transmission power of the first signal is associated with the first downlink signal combination information, the method further includes: The terminal determines first information based on the first downlink signal combination and determines the transmission power of the first signal based on the first information; The first information includes at least one of the following: path loss, target received power, power offset, maximum transmitted power, power backoff value, power level, and transmitted module information.

5. The method according to any one of claims 1-4, characterized in that, When the transmission beam of the first signal is associated with the first downlink signal combination information, the first downlink signal combination information includes at least one of the following: The receiving beam of the first downlink signal combination; The first downlink signal combination includes the downlink signals; The mapping relationship between the first downlink signal combination and QCL information; The measurement results of the downlink signal in the first downlink signal combination.

6. The method according to any one of claims 1-5, characterized in that, The second signal includes at least one of the following: Physical Downlink Shared Channel (PDSCH) signal; Physical Downlink Control Channel (PDCCH) signal; Low-power wake-up signal LP-WUS; Broadcast signal; Synchronization signal block (SSB); Channel State Information Reference Signal (CSI-RS); Track the reference signal TRS.

7. The method according to any one of claims 1-6, characterized in that, The first QCL information is associated with the first downlink signal combination information, and the method further includes at least one of the following: The terminal determines the first QCL information based on the mapping relationship between the first downlink signal combination and the QCL information; The terminal determines the first QCL information based on the measurement results of the downlink signal in the first downlink signal combination.

8. The method according to claim 7, characterized in that, The terminal determines the first QCL information based on the measurement results of the downlink signal in the first downlink signal combination, including: The terminal determines the first QCL information based on the magnitude relationship of the downlink signal measurement results in the first downlink signal combination.

9. The method according to claim 8, characterized in that, The measurement results include at least one of the following: Reference signal received power RSRP; Reference signal reception quality (RSRQ); Signal-to-interference-plus-noise ratio (SINR); Signal-to-noise ratio (SNR); Signal-to-interference ratio (SIR); Phase information; Angle information.

10. The method according to claim 5 or 7, characterized in that, The mapping relationship between the first downlink signal combination and QCL information is indicated by the network-side device or predefined by the protocol.

11. The method according to any one of claims 1-10, characterized in that, If the terminal fails to send the first signal, the method further includes at least one of the following: The terminal performs power boosting based on the transmission power of the previous transmission of the first signal, and retransmits the first signal in the direction of the uplink transmission beam corresponding to the receiving beam of the first downlink signal combination; The terminal recalculates the transmission power based on the first downlink signal and retransmits the first signal on the uplink transmission beam corresponding to the receiving beam of the first downlink signal. The terminal uses the transmission power of the previous transmission of the first signal to retransmit the first signal on the uplink transmission beam corresponding to the receiving beam of the first downlink signal; The terminal recalculates the transmission power based on the second downlink signal combination and retransmits the first signal; The terminal, based on the second downlink signal combination, uses the previous transmission power and retransmits the first signal; Wherein, the first downlink signal combination includes the first downlink signal, and the second downlink signal combination is different from the first downlink signal combination.

12. The method according to claim 11, characterized in that, The second downlink signal combination satisfies the first condition, including at least one of the following: The measurement results of the downlink signals in the second downlink signal combination under the first measurement metric are all greater than or equal to the first preset value; The measurement result of the downlink signal in the second downlink signal combination under the first measurement metric determines a first value, and the first value is greater than or equal to a second preset value.

13. A signal processing method, characterized in that, include: The network-side device performs a second operation, which includes at least one of the following: The receiving terminal sends a first signal, and the network-side device receives at least one of the receiving resources and receiving beams of the first signal and associates them with the first downlink signal combination information; A second signal is sent to the terminal based on the first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

14. The method according to claim 13, characterized in that, The first signal includes at least one of the following: PRACH signal, PUSCH signal, PUCCH signal, WUS, and SRS.

15. The method according to claim 13 or 14, characterized in that, The received resources include at least one of the following: Time and frequency resources; DMRS resources; Scrambling code resources.

16. The method according to any one of claims 13-15, characterized in that, The second signal includes at least one of the following: PDSCH signal, PDCCH signal, LP-WUS, broadcast signal, SSB, CSI-RS, and TRS.

17. The method according to any one of claims 13-16, characterized in that, The first QCL information is associated with the first downlink signal combination information, and the method further includes at least one of the following: The network-side device determines the first QCL information based on the mapping relationship between the first downlink signal combination and the QCL information; The network-side device determines the first QCL information based on the measurement results of the downlink signal in the first downlink signal combination.

18. The method according to claim 17, characterized in that, The method further includes: The network-side device sends a first indication information to the terminal, the first indication information being used to indicate the mapping relationship between the first downlink signal combination and QCL information.

19. A signal processing apparatus, characterized in that, include: A first execution module is configured to perform a first operation, the first operation including at least one of the following: Send a first signal to the network-side device, wherein at least one of the transmission resources, transmission beam, and transmission power of the first signal is associated with first downlink signal combination information; The second signal sent by the network-side device is received based on the first QCL information, and the first QCL information is associated with the first downlink signal combination information.

20. The apparatus according to claim 19, characterized in that, The transmission resources for the first signal include at least one of the following: Time and frequency resources; Sequence resources; DMRS resources; Scrambling code resources.

21. The apparatus according to claim 19 or 20, characterized in that, When the transmission power of the first signal is associated with the first downlink signal combination information, the first execution module is further configured to: First information is determined based on the first downlink signal combination, and the transmission power of the first signal is determined based on the first information; The first information includes at least one of the following: path loss, target received power, power offset, maximum transmitted power, power backoff value, power level, and transmitted module information.

22. The apparatus according to any one of claims 19-21, characterized in that, When the transmission beam of the first signal is associated with the first downlink signal combination information, the first downlink signal combination information includes at least one of the following: The receiving beam of the first downlink signal combination; The downlink signals included in the first downlink signal combination; The mapping relationship between the first downlink signal combination and QCL information; The measurement results of the downlink signal in the first downlink signal combination.

23. The apparatus according to any one of claims 19-22, characterized in that, In the event that sending the first signal fails, the first execution module is further configured to perform at least one of the following: Based on the transmission power of the first signal previously transmitted, the power is boosted, and the first signal is retransmitted in the direction of the uplink transmission beam corresponding to the receiving beam of the first downlink signal combination. The transmission power is recalculated based on the first downlink signal, and the first signal is retransmitted on the uplink transmission beam corresponding to the receiving beam of the first downlink signal. Using the transmission power of the first downlink signal previously transmitted, the first signal is retransmitted in the uplink transmission beam direction corresponding to the receiving beam of the first downlink signal; The transmission power is recalculated based on the second downlink signal combination, and the first signal is retransmitted; Based on the second downlink signal combination, the previous transmission power is used, and the first signal is retransmitted; Wherein, the first downlink signal combination includes the first downlink signal, and the second downlink signal combination is different from the first downlink signal combination.

24. The apparatus according to claim 23, characterized in that, The second downlink signal combination satisfies the first condition, including at least one of the following: The measurement results of the downlink signals in the second downlink signal combination under the first measurement metric are all greater than or equal to the first preset value; The function calculation results of the downlink signals in the second downlink signal combination under the first measurement metric are all greater than or equal to the second preset value.

25. A signal processing apparatus, characterized in that, include: The second execution module is configured to perform a second operation, the second operation including at least one of the following: The receiving terminal sends a first signal, and the device receives at least one of the receiving resources and receiving beams of the first signal and associates it with first downlink signal combination information; A second signal is sent to the terminal based on the first QCL information, wherein the first QCL information is associated with the first downlink signal combination information.

26. The apparatus according to claim 25, characterized in that, The received resources include at least one of the following: Time and frequency resources; DMRS resources; Scrambling code resources.

27. The apparatus according to claim 25 or 26, characterized in that, The first QCL information is associated with the first downlink signal combination information, and the second execution module is further configured to perform at least one of the following: The first QCL information is determined based on the mapping relationship between the first downlink signal combination and the QCL information; The first QCL information is determined based on the measurement results of the downlink signal in the first downlink signal combination.

28. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the signal processing method as described in any one of claims 1-12.

29. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the signal processing method as described in any one of claims 13-18.

30. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the signal processing method as described in any one of claims 1-12, or implement the steps of the signal processing method as described in any one of claims 13-18.

31. A computer program product, characterized in that, The computer program product is stored in a storage medium and is executed by at least one processor to implement the steps of the signal processing method as described in any one of claims 1-12, or to implement the steps of the signal processing method as described in any one of claims 13-18.

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